diff --git a/.travis.yml b/.travis.yml
index 6b1dfd72ac..11dbe8cd1e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,7 +10,7 @@ script:
 - git clone --depth=1 --branch=master https://github.com/Anuken/MindustryBuilds ../MindustryBuilds
 - cd ../MindustryBuilds
 - echo ${TRAVIS_TAG}
-- if [ -n "$TRAVIS_TAG" ]; then echo versionName=5-fdroid-${TRAVIS_TAG:1}$'\n'versionCode=${TRAVIS_TAG:1} > version_fdroid.txt; git add .; git commit -m "Updating to build ${TRAVIS_TAG}"; fi
+- if [ -n "$TRAVIS_TAG" ]; then echo versionName=6-fdroid-${TRAVIS_TAG:1}$'\n'versionCode=${TRAVIS_TAG:1} > version_fdroid.txt; git add .; git commit -m "Updating to build ${TRAVIS_TAG}"; fi
 - git tag ${TRAVIS_BUILD_NUMBER}
 - git config --global user.name "Build Uploader"
 - if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then git push https://Anuken:${GH_PUSH_TOKEN}@github.com/Anuken/MindustryBuilds ${TRAVIS_BUILD_NUMBER}; git push https://Anuken:${GH_PUSH_TOKEN}@github.com/Anuken/MindustryBuilds; fi
diff --git a/core/assets/bundles/bundle.properties b/core/assets/bundles/bundle.properties
index 6d1aafb54f..651576c3de 100644
--- a/core/assets/bundles/bundle.properties
+++ b/core/assets/bundles/bundle.properties
@@ -20,7 +20,7 @@ gameover = Game Over
 gameover.pvp = The[accent] {0}[] team is victorious!
 highscore = [accent]New highscore!
 copied = Copied.
-indev.popup = [accent]v6[] is currently in [accent]alpha[].\n[lightgray]This means:[]\n[scarlet]- The campaign is completely unfinished[]\n- Content is missing\n - Most [scarlet]Unit AI[] does not work properly\n- Many units are unfinished\n- Everything you see is subject to change or removal.\n\nReport bugs or crashes on [accent]Github[].
+indev.popup = [accent]v6[] is currently in [accent]alpha[].\n[lightgray]This means:[]\n[scarlet]- The campaign is completely unfinished[]\n- SFX and music are unfinished/missing\n- Everything you see is subject to change or removal.\n\nReport bugs or crashes on [accent]Github[].
 indev.notready = This part of the game isn't ready yet
 
 load.sound = Sounds
@@ -291,6 +291,8 @@ waiting = [lightgray]Waiting...
 waiting.players = Waiting for players...
 wave.enemies = [lightgray]{0} Enemies Remaining
 wave.enemy = [lightgray]{0} Enemy Remaining
+wave.guardianwarn = Guardian approaching in [accent]{0}[] waves.
+wave.guardianwarn.one = Guardian approaching in [accent]{0}[] wave.
 loadimage = Load Image
 saveimage = Save Image
 unknown = Unknown
@@ -573,6 +575,7 @@ info.title = Info
 error.title = [scarlet]An error has occured
 error.crashtitle = An error has occured
 unit.nobuild = [scarlet]Unit can't build
+lastaccessed = [lightgray]Last Accessed: {0}
 blocks.input = Input
 blocks.output = Output
 blocks.booster = Booster
@@ -628,6 +631,7 @@ bar.powerbalance = Power: {0}/s
 bar.powerstored = Stored: {0}/{1}
 bar.poweramount = Power: {0}
 bar.poweroutput = Power Output: {0}
+bar.powerlines = Connections: {0}/{1}
 bar.items = Items: {0}
 bar.capacity = Capacity: {0}
 bar.unitcap = {0} {1}/{2}
@@ -990,6 +994,7 @@ block.darksand-water.name = Dark Sand Water
 block.char.name = Char
 block.dacite.name = Dacite
 block.dacite-wall.name = Dacite Wall
+block.dacite-boulder.name = Dacite Boulder
 block.ice-snow.name = Ice Snow
 block.stone-wall.name = Stone Wall
 block.ice-wall.name = Ice Wall
diff --git a/core/assets/maps/craters.msav b/core/assets/maps/craters.msav
index b879701ae6..b10b354bf0 100644
Binary files a/core/assets/maps/craters.msav and b/core/assets/maps/craters.msav differ
diff --git a/core/src/mindustry/Vars.java b/core/src/mindustry/Vars.java
index e0871c74ac..37ba22d3cb 100644
--- a/core/src/mindustry/Vars.java
+++ b/core/src/mindustry/Vars.java
@@ -85,9 +85,9 @@ public class Vars implements Loadable{
     /** range for moving items for logic units */
     public static final float logicItemTransferRange = 45f;
     /** duration of time between turns in ticks */
-    public static final float turnDuration = 20 * Time.toMinutes;
+    public static final float turnDuration = 2 * Time.toMinutes;
     /** turns needed to destroy a sector completely */
-    public static final float sectorDestructionTurns = 3f;
+    public static final float sectorDestructionTurns = 2f;
     /** min armor fraction damage; e.g. 0.05 = at least 5% damage */
     public static final float minArmorDamage = 0.1f;
     /** launch animation duration */
@@ -184,7 +184,7 @@ public class Vars implements Loadable{
     public static GameState state;
     public static EntityCollisions collisions;
     public static DefaultWaves defaultWaves;
-    public static mindustry.audio.LoopControl loops;
+    public static LoopControl loops;
     public static Platform platform = new Platform(){};
     public static Mods mods;
     public static Schematics schematics;
diff --git a/core/src/mindustry/ai/WaveSpawner.java b/core/src/mindustry/ai/WaveSpawner.java
index 417909a92b..9cecf32ac1 100644
--- a/core/src/mindustry/ai/WaveSpawner.java
+++ b/core/src/mindustry/ai/WaveSpawner.java
@@ -77,14 +77,18 @@ public class WaveSpawner{
 
         eachGroundSpawn((spawnX, spawnY, doShockwave) -> {
             if(doShockwave){
-                Time.run(20f, () -> Fx.spawnShockwave.at(spawnX, spawnY, state.rules.dropZoneRadius));
-                Time.run(40f, () -> Damage.damage(state.rules.waveTeam, spawnX, spawnY, state.rules.dropZoneRadius, 99999999f, true));
+                doShockwave(spawnX, spawnY);
             }
         });
 
         Time.runTask(121f, () -> spawning = false);
     }
 
+    public void doShockwave(float x, float y){
+        Time.run(20f, () -> Fx.spawnShockwave.at(x, y, state.rules.dropZoneRadius));
+        Time.run(40f, () -> Damage.damage(state.rules.waveTeam, x, y, state.rules.dropZoneRadius, 99999999f, true));
+    }
+
     private void eachGroundSpawn(SpawnConsumer cons){
         for(Tile spawn : spawns){
             cons.accept(spawn.worldx(), spawn.worldy(), true);
diff --git a/core/src/mindustry/ai/types/BuilderAI.java b/core/src/mindustry/ai/types/BuilderAI.java
index 1e1875e176..8e8c74f986 100644
--- a/core/src/mindustry/ai/types/BuilderAI.java
+++ b/core/src/mindustry/ai/types/BuilderAI.java
@@ -17,13 +17,17 @@ public class BuilderAI extends AIController{
     @Nullable Builderc following;
 
     @Override
-    public void updateUnit(){
+    public void updateMovement(){
         Builderc builder = (Builderc)unit;
 
         if(builder.moving()){
             builder.lookAt(builder.vel().angle());
         }
 
+        if(target != null && shouldShoot()){
+            unit.lookAt(target);
+        }
+
         builder.updateBuilding(true);
 
         if(following != null){
@@ -95,13 +99,29 @@ public class BuilderAI extends AIController{
                 }else if(Build.validPlace(content.block(block.block), unit.team(), block.x, block.y, block.rotation)){ //it's valid.
                     //add build request.
                     builder.addBuild(new BuildPlan(block.x, block.y, block.rotation, content.block(block.block), block.config));
+                    //shift build plan to tail so next unit builds something else.
+                    blocks.addLast(blocks.removeFirst());
                 }else{
                     //shift head of queue to tail, try something else next time
                     blocks.removeFirst();
                     blocks.addLast(block);
                 }
             }
-
         }
     }
+
+    @Override
+    public AIController fallback(){
+        return unit.type().flying ? new FlyingAI() : new GroundAI();
+    }
+
+    @Override
+    public boolean useFallback(){
+        return state.rules.waves && unit.team == state.rules.waveTeam && !unit.team.rules().ai;
+    }
+    
+    @Override
+    public boolean shouldShoot(){
+        return !((Builderc)unit).isBuilding();
+    }
 }
diff --git a/core/src/mindustry/ai/types/LogicAI.java b/core/src/mindustry/ai/types/LogicAI.java
index df856d6688..a7b606b932 100644
--- a/core/src/mindustry/ai/types/LogicAI.java
+++ b/core/src/mindustry/ai/types/LogicAI.java
@@ -21,6 +21,7 @@ public class LogicAI extends AIController{
     public LUnitControl control = LUnitControl.stop;
     public float moveX, moveY, moveRad;
     public float itemTimer, payTimer, controlTimer = logicControlTimeout, targetTimer;
+    @Nullable
     public Building controller;
     public BuildPlan plan = new BuildPlan();
 
diff --git a/core/src/mindustry/ai/types/RepairAI.java b/core/src/mindustry/ai/types/RepairAI.java
index 84baf1c555..5f021ae828 100644
--- a/core/src/mindustry/ai/types/RepairAI.java
+++ b/core/src/mindustry/ai/types/RepairAI.java
@@ -2,27 +2,33 @@ package mindustry.ai.types;
 
 import mindustry.entities.*;
 import mindustry.entities.units.*;
+import mindustry.gen.*;
 import mindustry.world.blocks.ConstructBlock.*;
 
-//note that repair AI doesn't attack anything even if it theoretically can
 public class RepairAI extends AIController{
 
     @Override
     protected void updateMovement(){
-        boolean shoot = false;
-
-        if(target != null){
-            if(!target.within(unit, unit.type().range * 0.8f)){
-                moveTo(target, unit.type().range * 0.8f);
-            }
+        if(target instanceof Building){
+            boolean shoot = false;
 
             if(target.within(unit, unit.type().range)){
                 unit.aim(target);
                 shoot = true;
             }
+
+            unit.controlWeapons(shoot);
+        }else if(target == null){
+            unit.controlWeapons(false);
         }
 
-        unit.controlWeapons(shoot);
+        if(target != null){
+            if(!target.within(unit, unit.type().range * 0.65f)){
+                moveTo(target, unit.type().range * 0.65f);
+            }
+
+            unit.lookAt(target);
+        }
     }
 
     @Override
@@ -30,5 +36,10 @@ public class RepairAI extends AIController{
         target = Units.findDamagedTile(unit.team, unit.x, unit.y);
 
         if(target instanceof ConstructBuild) target = null;
+        
+        if(target == null){
+            super.updateTargeting();
+        }
     }
+    
 }
diff --git a/core/src/mindustry/ai/types/SuicideAI.java b/core/src/mindustry/ai/types/SuicideAI.java
index 7278062605..2eae6e409f 100644
--- a/core/src/mindustry/ai/types/SuicideAI.java
+++ b/core/src/mindustry/ai/types/SuicideAI.java
@@ -6,6 +6,8 @@ import mindustry.entities.*;
 import mindustry.entities.units.*;
 import mindustry.gen.*;
 import mindustry.world.*;
+import mindustry.world.blocks.distribution.*;
+import mindustry.world.blocks.liquid.*;
 import mindustry.world.meta.*;
 
 public class SuicideAI extends GroundAI{
@@ -14,7 +16,7 @@ public class SuicideAI extends GroundAI{
     @Override
     public void updateUnit(){
 
-        if(Units.invalidateTarget(target, unit.team(), unit.x(), unit.y(), Float.MAX_VALUE)){
+        if(Units.invalidateTarget(target, unit.team, unit.x, unit.y, Float.MAX_VALUE)){
             target = null;
         }
 
@@ -26,7 +28,7 @@ public class SuicideAI extends GroundAI{
 
         boolean rotate = false, shoot = false, moveToTarget = false;
 
-        if(!Units.invalidateTarget(target, unit, unit.range())){
+        if(!Units.invalidateTarget(target, unit, unit.range()) && unit.hasWeapons()){
             rotate = true;
             shoot = unit.within(target, unit.type().weapons.first().bullet.range() +
                 (target instanceof Building ? ((Building)target).block.size * Vars.tilesize / 2f : ((Hitboxc)target).hitSize() / 2f));
@@ -35,29 +37,36 @@ public class SuicideAI extends GroundAI{
                 unit.aimLook(Predict.intercept(unit, target, unit.type().weapons.first().bullet.speed));
             }
 
-            blockedByBlock = false;
+            //do not move toward walls or transport blocks
+            if(!(target instanceof Building build && (
+                build.block.group == BlockGroup.walls ||
+                build.block.group == BlockGroup.liquids ||
+                build.block.group == BlockGroup.transportation
+            ))){
+                blockedByBlock = false;
 
-            //raycast for target
-            boolean blocked = Vars.world.raycast(unit.tileX(), unit.tileY(), target.tileX(), target.tileY(), (x, y) -> {
-                Tile tile = Vars.world.tile(x, y);
-                if(tile != null && tile.build == target) return false;
-                if(tile != null && tile.build != null && tile.build.team != unit.team()){
-                    blockedByBlock = true;
-                    return true;
-                }else{
-                    return tile == null || tile.solid();
+                //raycast for target
+                boolean blocked = Vars.world.raycast(unit.tileX(), unit.tileY(), target.tileX(), target.tileY(), (x, y) -> {
+                    Tile tile = Vars.world.tile(x, y);
+                    if(tile != null && tile.build == target) return false;
+                    if(tile != null && tile.build != null && tile.build.team != unit.team()){
+                        blockedByBlock = true;
+                        return true;
+                    }else{
+                        return tile == null || tile.solid();
+                    }
+                });
+
+                //shoot when there's an enemy block in the way
+                if(blockedByBlock){
+                    shoot = true;
                 }
-            });
 
-            //shoot when there's an enemy block in the way
-            if(blockedByBlock){
-                shoot = true;
-            }
-
-            if(!blocked){
-                moveToTarget = true;
-                //move towards target directly
-                unit.moveAt(vec.set(target).sub(unit).limit(unit.type().speed));
+                if(!blocked){
+                    moveToTarget = true;
+                    //move towards target directly
+                    unit.moveAt(vec.set(target).sub(unit).limit(unit.type().speed));
+                }
             }
 
         }
@@ -78,4 +87,10 @@ public class SuicideAI extends GroundAI{
 
         unit.controlWeapons(rotate, shoot);
     }
+
+    @Override
+    protected Teamc target(float x, float y, float range, boolean air, boolean ground){
+        return Units.closestTarget(unit.team, x, y, range, u -> u.checkTarget(air, ground), t -> ground &&
+            !(t.block instanceof Conveyor || t.block instanceof Conduit)); //do not target conveyors/conduits
+    }
 }
diff --git a/core/src/mindustry/content/Blocks.java b/core/src/mindustry/content/Blocks.java
index f04da239bb..05ed572f7e 100644
--- a/core/src/mindustry/content/Blocks.java
+++ b/core/src/mindustry/content/Blocks.java
@@ -702,7 +702,7 @@ public class Blocks implements ContentList{
             drawer = new DrawAnimation();
 
             consumes.item(Items.sporePod, 1);
-            consumes.power(0.60f);
+            consumes.power(0.7f);
         }};
 
         pulverizer = new GenericCrafter("pulverizer"){{
@@ -727,7 +727,7 @@ public class Blocks implements ContentList{
             hasPower = hasItems = hasLiquids = true;
 
             consumes.liquid(Liquids.oil, 0.1f);
-            consumes.power(0.5f);
+            consumes.power(0.7f);
         }};
 
         incinerator = new Incinerator("incinerator"){{
@@ -829,27 +829,27 @@ public class Blocks implements ContentList{
         }};
 
         scrapWall = new Wall("scrap-wall"){{
-            requirements(Category.defense, BuildVisibility.sandboxOnly, with());
+            requirements(Category.defense, BuildVisibility.sandboxOnly, with(Items.scrap, 6));
             health = 60 * wallHealthMultiplier;
             variants = 5;
         }};
 
         scrapWallLarge = new Wall("scrap-wall-large"){{
-            requirements(Category.defense, BuildVisibility.sandboxOnly, with());
+            requirements(Category.defense, BuildVisibility.sandboxOnly, ItemStack.mult(scrapWall.requirements, 4));
             health = 60 * 4 * wallHealthMultiplier;
             size = 2;
             variants = 4;
         }};
 
         scrapWallHuge = new Wall("scrap-wall-huge"){{
-            requirements(Category.defense, BuildVisibility.sandboxOnly, with());
+            requirements(Category.defense, BuildVisibility.sandboxOnly, ItemStack.mult(scrapWall.requirements, 9));
             health = 60 * 9 * wallHealthMultiplier;
             size = 3;
             variants = 3;
         }};
 
         scrapWallGigantic = new Wall("scrap-wall-gigantic"){{
-            requirements(Category.defense, BuildVisibility.sandboxOnly, with());
+            requirements(Category.defense, BuildVisibility.sandboxOnly, ItemStack.mult(scrapWall.requirements, 16));
             health = 60 * 16 * wallHealthMultiplier;
             size = 4;
         }};
@@ -994,7 +994,7 @@ public class Blocks implements ContentList{
 
         router = new Router("router"){{
             requirements(Category.distribution, with(Items.copper, 3));
-            buildCostMultiplier = 2f;
+            buildCostMultiplier = 4f;
         }};
 
         distributor = new Router("distributor"){{
@@ -1287,7 +1287,7 @@ public class Blocks implements ContentList{
         }};
 
         cultivator = new Cultivator("cultivator"){{
-            requirements(Category.production, with(Items.copper, 10, Items.lead, 25, Items.silicon, 10));
+            requirements(Category.production, with(Items.copper, 25, Items.lead, 25, Items.silicon, 10));
             outputItem = new ItemStack(Items.sporePod, 1);
             craftTime = 140;
             size = 2;
@@ -1295,7 +1295,7 @@ public class Blocks implements ContentList{
             hasPower = true;
             hasItems = true;
 
-            consumes.power(0.80f);
+            consumes.power(0.9f);
             consumes.liquid(Liquids.water, 0.2f);
         }};
 
@@ -1341,6 +1341,7 @@ public class Blocks implements ContentList{
             size = 4;
 
             unitCapModifier = 14;
+            researchCostMultiplier = 0.04f;
         }};
 
         coreNucleus = new CoreBlock("core-nucleus"){{
@@ -1352,6 +1353,7 @@ public class Blocks implements ContentList{
             size = 5;
 
             unitCapModifier = 20;
+            researchCostMultiplier = 0.06f;
         }};
 
         vault = new StorageBlock("vault"){{
diff --git a/core/src/mindustry/content/StatusEffects.java b/core/src/mindustry/content/StatusEffects.java
index 6752cf68e6..4cdfadec76 100644
--- a/core/src/mindustry/content/StatusEffects.java
+++ b/core/src/mindustry/content/StatusEffects.java
@@ -33,7 +33,7 @@ public class StatusEffects implements ContentList{
 
         freezing = new StatusEffect("freezing"){{
             speedMultiplier = 0.6f;
-            armorMultiplier = 0.8f;
+            healthMultiplier = 0.8f;
             effect = Fx.freezing;
 
             init(() -> {
@@ -81,7 +81,7 @@ public class StatusEffects implements ContentList{
 
         melting = new StatusEffect("melting"){{
             speedMultiplier = 0.8f;
-            armorMultiplier = 0.8f;
+            healthMultiplier = 0.8f;
             damage = 0.3f;
             effect = Fx.melting;
 
@@ -93,7 +93,7 @@ public class StatusEffects implements ContentList{
 
         sapped = new StatusEffect("sapped"){{
             speedMultiplier = 0.7f;
-            armorMultiplier = 0.8f;
+            healthMultiplier = 0.8f;
             effect = Fx.sapped;
             effectChance = 0.1f;
         }};
@@ -115,7 +115,7 @@ public class StatusEffects implements ContentList{
         }};
 
         overdrive = new StatusEffect("overdrive"){{
-            armorMultiplier = 0.95f;
+            healthMultiplier = 0.95f;
             speedMultiplier = 1.15f;
             damageMultiplier = 1.4f;
             damage = -0.01f;
@@ -132,13 +132,13 @@ public class StatusEffects implements ContentList{
         }};
 
         shielded = new StatusEffect("shielded"){{
-            armorMultiplier = 3f;
+            healthMultiplier = 3f;
         }};
 
         boss = new StatusEffect("boss"){{
             permanent = true;
-            damageMultiplier = 1.5f;
-            armorMultiplier = 1.5f;
+            damageMultiplier = 2f;
+            healthMultiplier = 2f;
         }};
 
         shocked = new StatusEffect("shocked");
diff --git a/core/src/mindustry/content/UnitTypes.java b/core/src/mindustry/content/UnitTypes.java
index d01be43902..9a1b851118 100644
--- a/core/src/mindustry/content/UnitTypes.java
+++ b/core/src/mindustry/content/UnitTypes.java
@@ -514,7 +514,7 @@ public class UnitTypes implements ContentList{
         crawler = new UnitType("crawler"){{
             defaultController = SuicideAI::new;
 
-            speed = 0.92f;
+            speed = 1f;
             hitSize = 8f;
             health = 180;
             mechSideSway = 0.25f;
@@ -529,9 +529,9 @@ public class UnitTypes implements ContentList{
                     hitEffect = Fx.pulverize;
                     lifetime = 10f;
                     speed = 1f;
-                    splashDamageRadius = 55f;
+                    splashDamageRadius = 70f;
                     instantDisappear = true;
-                    splashDamage = 60f;
+                    splashDamage = 80f;
                     killShooter = true;
                     hittable = false;
                     collidesAir = true;
@@ -1145,7 +1145,7 @@ public class UnitTypes implements ContentList{
             speed = 1.9f;
             rotateSpeed = 15f;
             accel = 0.1f;
-            range = 70f;
+            range = 130f;
             health = 400;
             buildSpeed = 0.5f;
             engineOffset = 6.5f;
@@ -1187,8 +1187,6 @@ public class UnitTypes implements ContentList{
                     healPercent = 5.5f;
                     collidesTeam = true;
                     backColor = Pal.heal;
-                    frontColor = Color.white;
-                    backColor = Pal.heal;
                     trailColor = Pal.heal;
                 }};
             }});
@@ -1233,7 +1231,7 @@ public class UnitTypes implements ContentList{
         }};
 
         quad = new UnitType("quad"){{
-            armor = 4f;
+            armor = 8f;
             health = 6000;
             speed = 1.2f;
             rotateSpeed = 2f;
@@ -1256,7 +1254,7 @@ public class UnitTypes implements ContentList{
             new Weapon(){{
                 x = y = 0f;
                 mirror = false;
-                reload = 60f;
+                reload = 55f;
                 minShootVelocity = 0.01f;
 
                 bullet = new BasicBulletType(){{
@@ -1289,9 +1287,9 @@ public class UnitTypes implements ContentList{
                     speed = 0.001f;
                     collides = false;
 
-                    healPercent = 10f;
-                    splashDamage = 240f;
-                    splashDamageRadius = 115f;
+                    healPercent = 15f;
+                    splashDamage = 320f;
+                    splashDamageRadius = 120f;
                 }};
             }});
         }};
@@ -1546,7 +1544,7 @@ public class UnitTypes implements ContentList{
                 xRand = 8f;
                 shotDelay = 1f;
 
-                bullet = new MissileBulletType(4.2f, 25){{
+                bullet = new MissileBulletType(4.2f, 30){{
                     homingPower = 0.12f;
                     width = 8f;
                     height = 8f;
@@ -1554,8 +1552,8 @@ public class UnitTypes implements ContentList{
                     drag = -0.003f;
                     homingRange = 80f;
                     keepVelocity = false;
-                    splashDamageRadius = 25f;
-                    splashDamage = 25f;
+                    splashDamageRadius = 30f;
+                    splashDamage = 35f;
                     lifetime = 56f;
                     trailColor = Pal.bulletYellowBack;
                     backColor = Pal.bulletYellowBack;
diff --git a/core/src/mindustry/content/Weathers.java b/core/src/mindustry/content/Weathers.java
index a2ffbb098f..273fdb5899 100644
--- a/core/src/mindustry/content/Weathers.java
+++ b/core/src/mindustry/content/Weathers.java
@@ -152,7 +152,7 @@ public class Weathers implements ContentList{
                         if(tile != null && tile.floor().liquidDrop == Liquids.water){
                             Draw.color(Tmp.c1.set(tile.floor().mapColor).mul(1.5f).a(state.opacity()));
                             Draw.rect(splashes[(int)(life * (splashes.length - 1))], x, y);
-                        }else{
+                        }else if(tile != null && tile.floor().liquidDrop == null && !tile.floor().solid){
                             Draw.color(Color.royal, Color.white, 0.3f);
                             Draw.alpha(Mathf.slope(life) * state.opacity());
 
diff --git a/core/src/mindustry/core/Logic.java b/core/src/mindustry/core/Logic.java
index dd54bcc59d..df536552df 100644
--- a/core/src/mindustry/core/Logic.java
+++ b/core/src/mindustry/core/Logic.java
@@ -9,7 +9,6 @@ import mindustry.game.EventType.*;
 import mindustry.game.*;
 import mindustry.game.Teams.*;
 import mindustry.gen.*;
-import mindustry.maps.*;
 import mindustry.type.*;
 import mindustry.type.Weather.*;
 import mindustry.world.*;
@@ -89,13 +88,16 @@ public class Logic implements ApplicationListener{
             if(state.isCampaign()){
                 long seconds = state.rules.sector.getSecondsPassed();
                 CoreBuild core = state.rules.defaultTeam.core();
+                //THE WAVES NEVER END
+                state.rules.waves = true;
 
                 //apply fractional damage based on how many turns have passed for this sector
-                float turnsPassed = seconds / (turnDuration / 60f);
+                //float turnsPassed = seconds / (turnDuration / 60f);
 
-                if(state.rules.sector.hasWaves() && turnsPassed > 0 && state.rules.sector.hasBase()){
-                    SectorDamage.apply(turnsPassed / sectorDestructionTurns);
-                }
+                //TODO sector damage disabled for now
+                //if(state.rules.sector.hasWaves() && turnsPassed > 0 && state.rules.sector.hasBase()){
+                //    SectorDamage.apply(turnsPassed / sectorDestructionTurns);
+                //}
 
                 //add resources based on turns passed
                 if(state.rules.sector.save != null && core != null){
@@ -197,6 +199,8 @@ public class Logic implements ApplicationListener{
                 state.rules.waves = false;
             }
 
+            //TODO capturing is disabled
+            /*
             //if there's a "win" wave and no enemies are present, win automatically
             if(state.rules.waves && state.enemies == 0 && state.rules.winWave > 0 && state.wave >= state.rules.winWave && !spawner.isSpawning()){
                 //the sector has been conquered - waves get disabled
@@ -209,7 +213,7 @@ public class Logic implements ApplicationListener{
                 if(!headless){
                     control.saves.saveSector(state.rules.sector);
                 }
-            }
+            }*/
         }else{
             if(!state.rules.attackMode && state.teams.playerCores().size == 0 && !state.gameOver){
                 state.gameOver = true;
diff --git a/core/src/mindustry/ctype/UnlockableContent.java b/core/src/mindustry/ctype/UnlockableContent.java
index 56e9c31146..f6e6d0a2dc 100644
--- a/core/src/mindustry/ctype/UnlockableContent.java
+++ b/core/src/mindustry/ctype/UnlockableContent.java
@@ -22,7 +22,7 @@ public abstract class UnlockableContent extends MappableContent{
     /** Whether this content is always unlocked in the tech tree. */
     public boolean alwaysUnlocked = false;
     /** Icons by Cicon ID.*/
-    protected TextureRegion[] cicons = new TextureRegion[mindustry.ui.Cicon.all.length];
+    protected TextureRegion[] cicons = new TextureRegion[Cicon.all.length];
     /** Unlock state. Loaded from settings. Do not modify outside of the constructor. */
     protected boolean unlocked;
 
diff --git a/core/src/mindustry/entities/comp/BuilderComp.java b/core/src/mindustry/entities/comp/BuilderComp.java
index d57b1b5b6d..0aafd4d0c0 100644
--- a/core/src/mindustry/entities/comp/BuilderComp.java
+++ b/core/src/mindustry/entities/comp/BuilderComp.java
@@ -116,7 +116,6 @@ abstract class BuilderComp implements Unitc{
         current.progress = entity.progress;
     }
 
-
     /** Draw all current build requests. Does not draw the beam effect, only the positions. */
     void drawBuildRequests(){
 
diff --git a/core/src/mindustry/entities/comp/BuildingComp.java b/core/src/mindustry/entities/comp/BuildingComp.java
index 4a8e23e6cf..15d79a8942 100644
--- a/core/src/mindustry/entities/comp/BuildingComp.java
+++ b/core/src/mindustry/entities/comp/BuildingComp.java
@@ -57,6 +57,7 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
     transient int rotation;
     transient boolean enabled = true;
     transient float enabledControlTime;
+    transient String lastAccessed;
 
     PowerModule power;
     ItemModule items;
@@ -348,6 +349,11 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
     //endregion
     //region handler methods
 
+    /** Called when an unloader takes an item. */
+    public void itemTaken(Item item){
+
+    }
+
     /** Called when this block is dropped as a payload. */
     public void dropped(){
 
@@ -874,6 +880,10 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
         //null is of type void.class; anonymous classes use their superclass.
         Class<?> type = value == null ? void.class : value.getClass().isAnonymousClass() ? value.getClass().getSuperclass() : value.getClass();
 
+        if(builder != null && builder.isPlayer()){
+            lastAccessed = builder.getPlayer().name;
+        }
+
         if(block.configurations.containsKey(type)){
             block.configurations.get(type).get(this, value);
         }
@@ -1038,6 +1048,11 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
                 }
             }
 
+            if(net.active() && lastAccessed != null){
+                table.row();
+                table.add(Core.bundle.format("lastaccessed", lastAccessed)).growX().wrap().left();
+            }
+
             table.marginBottom(-5);
         }
     }
diff --git a/core/src/mindustry/entities/comp/PayloadComp.java b/core/src/mindustry/entities/comp/PayloadComp.java
index a27c7721be..ac1f4fa323 100644
--- a/core/src/mindustry/entities/comp/PayloadComp.java
+++ b/core/src/mindustry/entities/comp/PayloadComp.java
@@ -86,10 +86,10 @@ abstract class PayloadComp implements Posc, Rotc, Hitboxc, Unitc{
             return true;
         }
 
-        if(payload instanceof BuildPayload){
-            return dropBlock((BuildPayload)payload);
-        }else if(payload instanceof UnitPayload){
-            return dropUnit((UnitPayload)payload);
+        if(payload instanceof BuildPayload b){
+            return dropBlock(b);
+        }else if(payload instanceof UnitPayload p){
+            return dropUnit(p);
         }
         return false;
     }
@@ -126,6 +126,8 @@ abstract class PayloadComp implements Posc, Rotc, Hitboxc, Unitc{
             int rot = (int)((rotation + 45f) / 90f) % 4;
             payload.place(on, rot);
 
+            if(isPlayer()) payload.build.lastAccessed = getPlayer().name;
+
             Fx.unitDrop.at(tile);
             Fx.placeBlock.at(on.drawx(), on.drawy(), on.block().size);
             return true;
diff --git a/core/src/mindustry/entities/comp/ShieldComp.java b/core/src/mindustry/entities/comp/ShieldComp.java
index 359637414e..274286b801 100644
--- a/core/src/mindustry/entities/comp/ShieldComp.java
+++ b/core/src/mindustry/entities/comp/ShieldComp.java
@@ -9,7 +9,7 @@ import static mindustry.Vars.*;
 
 @Component
 abstract class ShieldComp implements Healthc, Posc{
-    @Import float health, hitTime, x, y;
+    @Import float health, hitTime, x, y, healthMultiplier;
     @Import boolean dead;
 
     /** Absorbs health damage. */
@@ -22,6 +22,7 @@ abstract class ShieldComp implements Healthc, Posc{
     @Replace
     @Override
     public void damage(float amount){
+        amount /= healthMultiplier;
         //apply armor
         amount = Math.max(amount - armor, minArmorDamage * amount);
 
diff --git a/core/src/mindustry/entities/comp/StatusComp.java b/core/src/mindustry/entities/comp/StatusComp.java
index 3a31b13b95..fcce0d0a02 100644
--- a/core/src/mindustry/entities/comp/StatusComp.java
+++ b/core/src/mindustry/entities/comp/StatusComp.java
@@ -19,7 +19,7 @@ abstract class StatusComp implements Posc, Flyingc{
     private Seq<StatusEntry> statuses = new Seq<>();
     private transient Bits applied = new Bits(content.getBy(ContentType.status).size);
 
-    @ReadOnly transient float speedMultiplier = 1, damageMultiplier = 1, armorMultiplier = 1, reloadMultiplier = 1;
+    @ReadOnly transient float speedMultiplier = 1, damageMultiplier = 1, healthMultiplier = 1, reloadMultiplier = 1;
 
     @Import UnitType type;
 
@@ -104,7 +104,7 @@ abstract class StatusComp implements Posc, Flyingc{
         }
 
         applied.clear();
-        speedMultiplier = damageMultiplier = armorMultiplier = reloadMultiplier = 1f;
+        speedMultiplier = damageMultiplier = healthMultiplier = reloadMultiplier = 1f;
 
         if(statuses.isEmpty()) return;
 
@@ -122,7 +122,7 @@ abstract class StatusComp implements Posc, Flyingc{
                 statuses.remove(index);
             }else{
                 speedMultiplier *= entry.effect.speedMultiplier;
-                armorMultiplier *= entry.effect.armorMultiplier;
+                healthMultiplier *= entry.effect.healthMultiplier;
                 damageMultiplier *= entry.effect.damageMultiplier;
                 reloadMultiplier *= entry.effect.reloadMultiplier;
                 entry.effect.update(self(), entry.time);
diff --git a/core/src/mindustry/entities/units/AIController.java b/core/src/mindustry/entities/units/AIController.java
index d235972212..b02fa5dc00 100644
--- a/core/src/mindustry/entities/units/AIController.java
+++ b/core/src/mindustry/entities/units/AIController.java
@@ -21,6 +21,7 @@ public class AIController implements UnitController{
 
     protected Unit unit;
     protected Interval timer = new Interval(4);
+    protected AIController fallback;
 
     /** main target that is being faced */
     protected Teamc target;
@@ -34,11 +35,27 @@ public class AIController implements UnitController{
 
     @Override
     public void updateUnit(){
+        //use fallback AI when possible
+        if(useFallback() && (fallback != null || (fallback = fallback()) != null)){
+            if(fallback.unit != unit) fallback.unit(unit);
+            fallback.updateUnit();
+            return;
+        }
+
         updateVisuals();
         updateTargeting();
         updateMovement();
     }
 
+    @Nullable
+    protected AIController fallback(){
+        return null;
+    }
+
+    protected boolean useFallback(){
+        return false;
+    }
+
     protected UnitCommand command(){
         return unit.team.data().command;
     }
diff --git a/core/src/mindustry/game/DefaultWaves.java b/core/src/mindustry/game/DefaultWaves.java
index e21b13ca8c..53a0bfa99c 100644
--- a/core/src/mindustry/game/DefaultWaves.java
+++ b/core/src/mindustry/game/DefaultWaves.java
@@ -119,6 +119,7 @@ public class DefaultWaves{
                 unitAmount = 2;
                 unitScaling = 2;
                 max = 20;
+                shieldScaling = 30;
             }},
 
             new SpawnGroup(dagger){{
@@ -144,6 +145,7 @@ public class DefaultWaves{
                 unitAmount = 2;
                 spacing = 2;
                 unitScaling = 2;
+                shieldScaling = 20;
             }},
 
             new SpawnGroup(flare){{
@@ -162,6 +164,7 @@ public class DefaultWaves{
                 unitScaling = 3;
                 spacing = 5;
                 max = 16;
+                shieldScaling = 30;
             }},
 
             new SpawnGroup(nova){{
@@ -169,6 +172,7 @@ public class DefaultWaves{
                 unitAmount = 2;
                 unitScaling = 3;
                 spacing = 4;
+                shieldScaling = 20;
             }},
 
             new SpawnGroup(atrax){{
@@ -192,15 +196,15 @@ public class DefaultWaves{
                 unitAmount = 1;
                 unitScaling = 1;
                 spacing = 40;
-                shieldScaling = 10f;
+                shieldScaling = 20f;
             }},
 
             new SpawnGroup(antumbra){{
-                begin = 131;
+                begin = 120;
                 unitAmount = 1;
                 unitScaling = 1;
                 spacing = 40;
-                shieldScaling = 10f;
+                shieldScaling = 20f;
             }},
 
             new SpawnGroup(vela){{
@@ -211,6 +215,15 @@ public class DefaultWaves{
                 shieldScaling = 20f;
             }},
 
+            new SpawnGroup(corvus){{
+                begin = 145;
+                unitAmount = 1;
+                unitScaling = 1;
+                spacing = 35;
+                shieldScaling = 30f;
+                shields = 100;
+            }},
+
             new SpawnGroup(horizon){{
                 begin = 90;
                 unitAmount = 2;
@@ -252,7 +265,7 @@ public class DefaultWaves{
         //max reasonable wave, after which everything gets boring
         int cap = 200;
 
-        float shieldStart = 30, shieldsPerWave = 15 + difficulty*20f;
+        float shieldStart = 30, shieldsPerWave = 20 + difficulty*30f;
 
         Intc createProgression = start -> {
             //main sequence
@@ -314,8 +327,8 @@ public class DefaultWaves{
             step += (int)(Mathf.random(12, 25) * Mathf.lerp(1f, 0.4f, difficulty));
         }
 
-        int bossWave = Mathf.random(30, 60);
-        int bossSpacing = Mathf.random(30, 50);
+        int bossWave = (int)(Mathf.random(30, 60) * Mathf.lerp(1f, 0.7f, difficulty));
+        int bossSpacing = (int)(Mathf.random(25, 40) * Mathf.lerp(1f, 0.6f, difficulty));
 
         //main boss progression
         out.add(new SpawnGroup(Structs.random(species)[4]){{
@@ -339,6 +352,14 @@ public class DefaultWaves{
             shieldScaling = shieldsPerWave;
         }});
 
+        //shift back waves on higher difficulty for a harder start
+        int shift = Math.max((int)(difficulty * 15 - 5), 0);
+
+        for(SpawnGroup group : out){
+            group.begin -= shift;
+            group.end -= shift;
+        }
+
         return out;
     }
 }
diff --git a/core/src/mindustry/game/Objectives.java b/core/src/mindustry/game/Objectives.java
index 535f1d3e13..a4097c51fc 100644
--- a/core/src/mindustry/game/Objectives.java
+++ b/core/src/mindustry/game/Objectives.java
@@ -28,6 +28,7 @@ public class Objectives{
         }
     }
 
+    //TODO fix
     public static class SectorComplete extends SectorObjective{
 
         public SectorComplete(SectorPreset zone){
@@ -38,12 +39,12 @@ public class Objectives{
 
         @Override
         public boolean complete(){
-            return preset.sector.isCaptured();
+            return preset.sector.save != null && preset.sector.save.meta.wave >= preset.sector.save.meta.rules.winWave;
         }
 
         @Override
         public String display(){
-            return Core.bundle.format("requirement.capture", preset.localizedName);
+            return Core.bundle.format("requirement.wave", preset.sector.save == null ? "<unknown>" : preset.sector.save.meta.rules.winWave, preset.localizedName);
         }
     }
 
diff --git a/core/src/mindustry/game/Schematic.java b/core/src/mindustry/game/Schematic.java
index 3aeb222d29..e539ae69a2 100644
--- a/core/src/mindustry/game/Schematic.java
+++ b/core/src/mindustry/game/Schematic.java
@@ -62,6 +62,10 @@ public class Schematic implements Publishable, Comparable<Schematic>{
         return tags.get("name", "unknown");
     }
 
+    public String description(){
+        return tags.get("description", "");
+    }
+
     public void save(){
         schematics.saveChanges(this);
     }
@@ -90,7 +94,7 @@ public class Schematic implements Publishable, Comparable<Schematic>{
 
     @Override
     public String steamDescription(){
-        return null;
+        return description();
     }
 
     @Override
diff --git a/core/src/mindustry/game/SectorInfo.java b/core/src/mindustry/game/SectorInfo.java
index dc56902c60..b66dc5bf95 100644
--- a/core/src/mindustry/game/SectorInfo.java
+++ b/core/src/mindustry/game/SectorInfo.java
@@ -10,6 +10,8 @@ import mindustry.world.*;
 import mindustry.world.blocks.storage.CoreBlock.*;
 import mindustry.world.modules.*;
 
+import java.util.*;
+
 import static mindustry.Vars.*;
 
 public class SectorInfo{
@@ -42,7 +44,15 @@ public class SectorInfo{
     /** Counter refresh state. */
     private transient Interval time = new Interval();
     /** Core item storage to prevent spoofing. */
-    private transient int[] lastCoreItems;
+    private transient int[] coreItemCounts;
+
+    /** Handles core item changes. */
+    public void handleCoreItem(Item item, int amount){
+        if(coreItemCounts == null){
+            coreItemCounts = new int[content.items().size];
+        }
+        coreItemCounts[item.id] += amount;
+    }
 
     /** @return the real location items go when launched on this sector */
     public Sector getRealDestination(){
@@ -105,12 +115,6 @@ public class SectorInfo{
             universe.runTurn();
         }
 
-        //create last stored core items
-        if(lastCoreItems == null){
-            lastCoreItems = new int[content.items().size];
-            updateCoreDeltas();
-        }
-
         CoreBuild ent = state.rules.defaultTeam.core();
 
         //refresh throughput
@@ -124,15 +128,16 @@ public class SectorInfo{
                     stat.loaded = true;
                 }
 
-                //how the resources changed - only interested in negative deltas, since that's what happens during spoofing
-                int coreDelta = Math.min(ent == null ? 0 : ent.items.get(item) - lastCoreItems[item.id], 0);
-
                 //add counter, subtract how many items were taken from the core during this time
-                stat.means.add(Math.max(stat.counter + coreDelta, 0));
+                stat.means.add(Math.max(stat.counter, 0));
                 stat.counter = 0;
                 stat.mean = stat.means.rawMean();
             });
 
+            if(coreItemCounts == null){
+                coreItemCounts = new int[content.items().size];
+            }
+
             //refresh core items
             for(Item item : content.items()){
                 ExportStat stat = production.get(item, ExportStat::new);
@@ -143,21 +148,14 @@ public class SectorInfo{
 
                 //get item delta
                 //TODO is preventing negative production a good idea?
-                int delta = Math.max((ent == null ? 0 : ent.items.get(item)) - lastCoreItems[item.id], 0);
+                int delta = Math.max(ent == null ? 0 : coreItemCounts[item.id], 0);
 
                 //store means
                 stat.means.add(delta);
                 stat.mean = stat.means.rawMean();
             }
 
-            updateCoreDeltas();
-        }
-    }
-
-    private void updateCoreDeltas(){
-        CoreBuild ent = state.rules.defaultTeam.core();
-        for(int i = 0; i < lastCoreItems.length; i++){
-            lastCoreItems[i] = ent == null ? 0 : ent.items.get(i);
+            Arrays.fill(coreItemCounts, 0);
         }
     }
 
diff --git a/core/src/mindustry/game/SpawnGroup.java b/core/src/mindustry/game/SpawnGroup.java
index 28edfd0a1a..f9ae7c74d3 100644
--- a/core/src/mindustry/game/SpawnGroup.java
+++ b/core/src/mindustry/game/SpawnGroup.java
@@ -28,7 +28,7 @@ public class SpawnGroup implements Serializable{
     /** The spacing, in waves, of spawns. For example, 2 = spawns every other wave */
     public int spacing = 1;
     /** Maximum amount of units that spawn */
-    public int max = 100;
+    public int max = 40;
     /** How many waves need to pass before the amount of units spawned increases by 1 */
     public float unitScaling = never;
     /** Shield points that this unit has. */
@@ -88,7 +88,7 @@ public class SpawnGroup implements Serializable{
         if(begin != 0) json.writeValue("begin", begin);
         if(end != never) json.writeValue("end", end);
         if(spacing != 1) json.writeValue("spacing", spacing);
-        //if(max != 40) json.writeValue("max", max);
+        if(max != 40) json.writeValue("max", max);
         if(unitScaling != never) json.writeValue("scaling", unitScaling);
         if(shields != 0) json.writeValue("shields", shields);
         if(shieldScaling != 0) json.writeValue("shieldScaling", shieldScaling);
@@ -105,12 +105,18 @@ public class SpawnGroup implements Serializable{
         begin = data.getInt("begin", 0);
         end = data.getInt("end", never);
         spacing = data.getInt("spacing", 1);
-        //max = data.getInt("max", 40);
+        max = data.getInt("max", 40);
         unitScaling = data.getFloat("scaling", never);
         shields = data.getFloat("shields", 0);
         shieldScaling = data.getFloat("shieldScaling", 0);
         unitAmount = data.getInt("amount", 1);
-        effect = content.getByName(ContentType.status, data.hasChild("effect") && data.getChild("effect").isString() ? data.getString("effect", "none") : "none");
+
+        //old boss effect ID
+        if(data.has("effect") && data.get("effect").isNumber() && data.getInt("effect", -1) == 8){
+            effect = StatusEffects.boss;
+        }else{
+            effect = content.getByName(ContentType.status, data.has("effect") && data.get("effect").isString() ? data.getString("effect", "none") : "none");
+        }
     }
 
     @Override
diff --git a/core/src/mindustry/game/Universe.java b/core/src/mindustry/game/Universe.java
index b2c9c7d039..892b93b731 100644
--- a/core/src/mindustry/game/Universe.java
+++ b/core/src/mindustry/game/Universe.java
@@ -140,8 +140,9 @@ public class Universe{
                     if(!sector.isBeingPlayed()){
                         sector.setSecondsPassed(sector.getSecondsPassed() + actuallyPassed);
 
+                        //TODO sector damage disabled for now
                         //check if the sector has been attacked too many times...
-                        if(sector.hasBase() && sector.hasWaves() && sector.getSecondsPassed() * 60f > turnDuration * sectorDestructionTurns){
+                        /*if(sector.hasBase() && sector.hasWaves() && sector.getSecondsPassed() * 60f > turnDuration * sectorDestructionTurns){
                             //fire event for losing the sector
                             Events.fire(new SectorLoseEvent(sector));
 
@@ -151,17 +152,17 @@ public class Universe{
                             //clear recieved
                             sector.setExtraItems(new ItemSeq());
                             sector.save = null;
-                        }
+                        }*/
                     }
 
                     //export to another sector
                     if(sector.save != null && sector.save.meta != null && sector.save.meta.secinfo != null && sector.save.meta.secinfo.destination != null){
                         Sector to = sector.save.meta.secinfo.destination;
                         if(to.save != null){
-                            ItemSeq items = to.getExtraItems();
+                            ItemSeq items = new ItemSeq();
                             //calculated exported items to this sector
                             sector.save.meta.secinfo.export.each((item, stat) -> items.add(item, (int)(stat.mean * newSecondsPassed)));
-                            to.setExtraItems(items);
+                            to.addItems(items);
                         }
                     }
 
diff --git a/core/src/mindustry/graphics/OverlayRenderer.java b/core/src/mindustry/graphics/OverlayRenderer.java
index ea988e5e78..19569ed1a3 100644
--- a/core/src/mindustry/graphics/OverlayRenderer.java
+++ b/core/src/mindustry/graphics/OverlayRenderer.java
@@ -7,6 +7,7 @@ import arc.math.*;
 import arc.math.geom.*;
 import arc.util.*;
 import mindustry.*;
+import mindustry.ai.types.*;
 import mindustry.gen.*;
 import mindustry.input.*;
 import mindustry.ui.*;
@@ -151,6 +152,13 @@ public class OverlayRenderer{
 
         input.drawOverSelect();
 
+        if(ui.hudfrag.blockfrag.hover() instanceof Unit unit && unit.controller() instanceof LogicAI ai && ai.controller instanceof Building build){
+            Drawf.square(build.x, build.y, build.block.size * tilesize/2f + 2f);
+            if(!unit.within(build, unit.hitSize * 2f)){
+                Drawf.arrow(unit.x, unit.y, build.x, build.y, unit.hitSize *2f, 4f);
+            }
+        }
+
         //draw selection overlay when dropping item
         if(input.isDroppingItem()){
             Vec2 v = Core.input.mouseWorld(input.getMouseX(), input.getMouseY());
diff --git a/core/src/mindustry/input/DesktopInput.java b/core/src/mindustry/input/DesktopInput.java
index 0b21a2cea4..7099f254dd 100644
--- a/core/src/mindustry/input/DesktopInput.java
+++ b/core/src/mindustry/input/DesktopInput.java
@@ -176,7 +176,7 @@ public class DesktopInput extends InputHandler{
     public void update(){
         super.update();
 
-        if(net.active() && Core.input.keyTap(Binding.player_list) && (scene.getKeyboardFocus() == null || scene.getKeyboardFocus().isDescendantOf(ui.listfrag.content))){
+        if(net.active() && Core.input.keyTap(Binding.player_list) && (scene.getKeyboardFocus() == null || scene.getKeyboardFocus().isDescendantOf(ui.listfrag.content) || scene.getKeyboardFocus().isDescendantOf(ui.minimapfrag.elem))){
             ui.listfrag.toggle();
         }
 
diff --git a/core/src/mindustry/input/InputHandler.java b/core/src/mindustry/input/InputHandler.java
index 3f4d4caecd..eebe40e15b 100644
--- a/core/src/mindustry/input/InputHandler.java
+++ b/core/src/mindustry/input/InputHandler.java
@@ -256,7 +256,7 @@ public abstract class InputHandler implements InputProcessor, GestureListener{
     }
 
     @Remote(targets = Loc.both, called = Loc.server, forward = true, unreliable = true)
-    public static void rotateBlock(Player player, Building tile, boolean direction){
+    public static void rotateBlock(@Nullable Player player, Building tile, boolean direction){
         if(tile == null) return;
 
         if(net.server() && (!Units.canInteract(player, tile) ||
@@ -264,6 +264,7 @@ public abstract class InputHandler implements InputProcessor, GestureListener{
             throw new ValidateException(player, "Player cannot rotate a block.");
         }
 
+        if(player != null) tile.lastAccessed = player.name;
         tile.rotation = Mathf.mod(tile.rotation + Mathf.sign(direction), 4);
         tile.updateProximity();
         tile.noSleep();
@@ -531,6 +532,7 @@ public abstract class InputHandler implements InputProcessor, GestureListener{
                 });
             }else{
                 lastSchematic.tags.put("name", text);
+                lastSchematic.tags.put("description", "");
                 schematics.add(lastSchematic);
                 ui.showInfoFade("@schematic.saved");
                 ui.schematics.showInfo(lastSchematic);
diff --git a/core/src/mindustry/io/TypeIO.java b/core/src/mindustry/io/TypeIO.java
index 066ddc0efe..669cd65d53 100644
--- a/core/src/mindustry/io/TypeIO.java
+++ b/core/src/mindustry/io/TypeIO.java
@@ -290,12 +290,15 @@ public class TypeIO{
 
     public static void writeController(Writes write, UnitController control){
         //no real unit controller state is written, only the type
-        if(control instanceof Player){
+        if(control instanceof Player p){
             write.b(0);
-            write.i(((Player)control).id);
-        }else if(control instanceof FormationAI){
+            write.i(p.id);
+        }else if(control instanceof FormationAI form){
             write.b(1);
-            write.i(((FormationAI)control).leader.id);
+            write.i(form.leader.id);
+        }else if(control instanceof LogicAI logic && logic.controller != null){
+            write.b(3);
+            write.i(logic.controller.pos());
         }else{
             write.b(2);
         }
@@ -312,6 +315,19 @@ public class TypeIO{
         }else if(type == 1){ //formation controller
             int id = read.i();
             return prev instanceof FormationAI ? prev : new FormationAI(Groups.unit.getByID(id), null);
+        }else if(type == 3){
+            int pos = read.i();
+            if(prev instanceof LogicAI pai){
+                pai.controller = world.build(pos);
+                return pai;
+            }else{
+                //create new AI for assignment
+                LogicAI out = new LogicAI();
+                //instantly time out when updated.
+                out.controlTimer = LogicAI.logicControlTimeout;
+                out.controller = world.build(pos);
+                return out;
+            }
         }else{
             //there are two cases here:
             //1: prev controller was not a player, carry on
diff --git a/core/src/mindustry/logic/LAssembler.java b/core/src/mindustry/logic/LAssembler.java
index e355416427..4f72d121aa 100644
--- a/core/src/mindustry/logic/LAssembler.java
+++ b/core/src/mindustry/logic/LAssembler.java
@@ -52,6 +52,9 @@ public class LAssembler{
             }
         }
 
+        //used as a special value for any environmental solid block
+        putConst("@solid", Blocks.stoneWall);
+
         putConst("@air", Blocks.air);
 
         for(UnitType type : Vars.content.units()){
diff --git a/core/src/mindustry/logic/LExecutor.java b/core/src/mindustry/logic/LExecutor.java
index 93c5263a9b..3bcfaf46ee 100644
--- a/core/src/mindustry/logic/LExecutor.java
+++ b/core/src/mindustry/logic/LExecutor.java
@@ -6,6 +6,7 @@ import arc.util.*;
 import arc.util.noise.*;
 import mindustry.*;
 import mindustry.ai.types.*;
+import mindustry.content.*;
 import mindustry.ctype.*;
 import mindustry.entities.*;
 import mindustry.game.*;
@@ -251,6 +252,11 @@ public class LExecutor{
                         case spawn -> {
                             res = Geometry.findClosest(unit.x, unit.y, Vars.spawner.getSpawns());
                         }
+                        case damaged -> {
+                            Building b = Units.findDamagedTile(unit.team, unit.x, unit.y);
+                            res = b == null ? null : b.tile;
+                            build = true;
+                        }
                     }
 
                     if(res != null && (!build || res.build != null)){
@@ -435,12 +441,16 @@ public class LExecutor{
                     }
                     case getBlock -> {
                         float x = exec.numf(p1), y = exec.numf(p2);
-                        if(unit.within(x, y, unit.range())){
+                        float range = Math.max(unit.range(), buildingRange);
+                        if(!unit.within(x, y, range)){
                             exec.setobj(p3, null);
+                            exec.setnum(p4, 0);
                         }else{
                             Tile tile = world.tileWorld(x, y);
-                            Block block = tile == null || !tile.synthetic() ? null : tile.block();
+                            //any environmental solid block is returned as StoneWall, aka "@solid"
+                            Block block = tile == null ? null : !tile.synthetic() ? (tile.solid() ? Blocks.stoneWall : Blocks.air) : tile.block();
                             exec.setobj(p3, block);
+                            exec.setnum(p4, tile != null && tile.build != null ? tile.build.rotation : 0);
                         }
                     }
                     case itemDrop -> {
diff --git a/core/src/mindustry/logic/LLocate.java b/core/src/mindustry/logic/LLocate.java
index 679136e74f..84da2321f9 100644
--- a/core/src/mindustry/logic/LLocate.java
+++ b/core/src/mindustry/logic/LLocate.java
@@ -3,7 +3,8 @@ package mindustry.logic;
 public enum LLocate{
     ore,
     building,
-    spawn;
+    spawn,
+    damaged;
 
     public static final LLocate[] all = values();
 }
diff --git a/core/src/mindustry/logic/LStatements.java b/core/src/mindustry/logic/LStatements.java
index a96adaf9d9..ba4d31e9a1 100644
--- a/core/src/mindustry/logic/LStatements.java
+++ b/core/src/mindustry/logic/LStatements.java
@@ -889,7 +889,7 @@ public class LStatements{
                     table.row();
                 }
 
-                case spawn -> {
+                case spawn, damaged -> {
                     table.row();
                 }
             }
diff --git a/core/src/mindustry/logic/LUnitControl.java b/core/src/mindustry/logic/LUnitControl.java
index 879578e59b..2166b00690 100644
--- a/core/src/mindustry/logic/LUnitControl.java
+++ b/core/src/mindustry/logic/LUnitControl.java
@@ -15,7 +15,7 @@ public enum LUnitControl{
     mine("x", "y"),
     flag("value"),
     build("x", "y", "block", "rotation"),
-    getBlock("x", "y", "result"),
+    getBlock("x", "y", "result", "resRot"),
     within("x", "y", "radius", "result");
 
     public final String[] params;
diff --git a/core/src/mindustry/maps/Map.java b/core/src/mindustry/maps/Map.java
index edef90cea7..0fdc818139 100644
--- a/core/src/mindustry/maps/Map.java
+++ b/core/src/mindustry/maps/Map.java
@@ -98,7 +98,9 @@ public class Map implements Comparable<Map>, Publishable{
 
     public Rules rules(Rules base){
         try{
-            Rules result = JsonIO.read(Rules.class, base, tags.get("rules", "{}"));
+            //this replacement is a MASSIVE hack but it fixes some incorrect overwriting of team-specific rules.
+            //may need to be tweaked later
+            Rules result = JsonIO.read(Rules.class, base, tags.get("rules", "{}").replace("teams:{2:{infiniteAmmo:true}},", ""));
             if(result.spawns.isEmpty()) result.spawns = Vars.defaultWaves.get();
             return result;
         }catch(Exception e){
diff --git a/core/src/mindustry/maps/planet/SerpuloPlanetGenerator.java b/core/src/mindustry/maps/planet/SerpuloPlanetGenerator.java
index 781bbdb7b5..ee2f6b437c 100644
--- a/core/src/mindustry/maps/planet/SerpuloPlanetGenerator.java
+++ b/core/src/mindustry/maps/planet/SerpuloPlanetGenerator.java
@@ -145,7 +145,7 @@ public class SerpuloPlanetGenerator extends PlanetGenerator{
         float constraint = 1.3f;
         float radius = width / 2f / Mathf.sqrt3;
         int rooms = rand.random(2, 5);
-        Seq<Room> array = new Seq<>();
+        Seq<Room> roomseq = new Seq<>();
 
         for(int i = 0; i < rooms; i++){
             Tmp.v1.trns(rand.random(360f), rand.random(radius / constraint));
@@ -153,7 +153,7 @@ public class SerpuloPlanetGenerator extends PlanetGenerator{
             float ry = (height/2f + Tmp.v1.y);
             float maxrad = radius - Tmp.v1.len();
             float rrad = Math.min(rand.random(9f, maxrad / 2f), 30f);
-            array.add(new Room((int)rx, (int)ry, (int)rrad));
+            roomseq.add(new Room((int)rx, (int)ry, (int)rrad));
         }
 
         //check positions on the map to place the player spawn. this needs to be in the corner of the map
@@ -182,13 +182,13 @@ public class SerpuloPlanetGenerator extends PlanetGenerator{
             }
 
             if(waterTiles <= 4 || (i + angleStep >= 360)){
-                array.add(spawn = new Room(cx, cy, rand.random(8, 15)));
+                roomseq.add(spawn = new Room(cx, cy, rand.random(8, 15)));
 
                 for(int j = 0; j < enemySpawns; j++){
                     float enemyOffset = rand.range(60f);
                     Tmp.v1.set(cx - width/2, cy - height/2).rotate(180f + enemyOffset).add(width/2, height/2);
                     Room espawn = new Room((int)Tmp.v1.x, (int)Tmp.v1.y, rand.random(8, 15));
-                    array.add(espawn);
+                    roomseq.add(espawn);
                     enemies.add(espawn);
                 }
 
@@ -196,16 +196,16 @@ public class SerpuloPlanetGenerator extends PlanetGenerator{
             }
         }
 
-        for(Room room : array){
+        for(Room room : roomseq){
             erase(room.x, room.y, room.radius);
         }
 
         int connections = rand.random(Math.max(rooms - 1, 1), rooms + 3);
         for(int i = 0; i < connections; i++){
-            array.random(rand).connect(array.random(rand));
+            roomseq.random(rand).connect(roomseq.random(rand));
         }
 
-        for(Room room : array){
+        for(Room room : roomseq){
             spawn.connect(room);
         }
 
@@ -252,10 +252,6 @@ public class SerpuloPlanetGenerator extends PlanetGenerator{
             }
         });
 
-        for(Room espawn : enemies){
-            tiles.getn(espawn.x, espawn.y).setOverlay(Blocks.spawn);
-        }
-
         trimDark();
 
         median(2);
@@ -273,7 +269,7 @@ public class SerpuloPlanetGenerator extends PlanetGenerator{
             //tar
             if(floor == Blocks.darksand){
                 if(Math.abs(0.5f - noise(x - 40, y, 2, 0.7, 80)) > 0.25f &&
-                Math.abs(0.5f - noise(x, y + sector.id*10, 1, 1, 60)) > 0.41f){
+                Math.abs(0.5f - noise(x, y + sector.id*10, 1, 1, 60)) > 0.41f && !(roomseq.contains(r -> Mathf.within(x, y, r.x, r.y, 15)))){
                     floor = Blocks.tar;
                     ore = Blocks.air;
                 }
@@ -298,6 +294,23 @@ public class SerpuloPlanetGenerator extends PlanetGenerator{
                 }
             }
 
+            if(rand.chance(0.0075)){
+                //random spore trees
+                boolean any = false;
+                boolean all = true;
+                for(Point2 p : Geometry.d4){
+                    Tile other = tiles.get(x + p.x, y + p.y);
+                    if(other != null && other.block() == Blocks.air){
+                        any = true;
+                    }else{
+                        all = false;
+                    }
+                }
+                if(any && ((block == Blocks.snowWall || block == Blocks.iceWall) || (all && block == Blocks.air && floor == Blocks.snow && rand.chance(0.03)))){
+                    block = rand.chance(0.5) ? Blocks.whiteTree : Blocks.whiteTreeDead;
+                }
+            }
+
             //random stuff
             dec: {
                 for(int i = 0; i < 4; i++){
@@ -392,6 +405,10 @@ public class SerpuloPlanetGenerator extends PlanetGenerator{
 
         Schematics.placeLaunchLoadout(spawn.x, spawn.y);
 
+        for(Room espawn : enemies){
+            tiles.getn(espawn.x, espawn.y).setOverlay(Blocks.spawn);
+        }
+
         if(sector.hasEnemyBase()){
             basegen.generate(tiles, enemies.map(r -> tiles.getn(r.x, r.y)), tiles.get(spawn.x, spawn.y), state.rules.waveTeam, sector, difficulty);
 
diff --git a/core/src/mindustry/mod/ContentParser.java b/core/src/mindustry/mod/ContentParser.java
index 38f4db6a82..b9c119ee32 100644
--- a/core/src/mindustry/mod/ContentParser.java
+++ b/core/src/mindustry/mod/ContentParser.java
@@ -603,7 +603,7 @@ public class ContentParser{
                 customRequirements = null;
             }else{
                 researchName = research.getString("parent");
-                customRequirements = research.hasChild("requirements") ? parser.readValue(ItemStack[].class, research.getChild("requirements")) : null;
+                customRequirements = research.has("requirements") ? parser.readValue(ItemStack[].class, research.get("requirements")) : null;
             }
 
             //remove old node
diff --git a/core/src/mindustry/type/Sector.java b/core/src/mindustry/type/Sector.java
index 6d042296d1..4c1df28945 100644
--- a/core/src/mindustry/type/Sector.java
+++ b/core/src/mindustry/type/Sector.java
@@ -8,6 +8,7 @@ import arc.util.*;
 import mindustry.*;
 import mindustry.game.Saves.*;
 import mindustry.graphics.g3d.PlanetGrid.*;
+import mindustry.world.modules.*;
 
 import static mindustry.Vars.*;
 
@@ -143,9 +144,17 @@ public class Sector{
     }
 
     public void removeItem(Item item, int amount){
+        ItemSeq seq = new ItemSeq();
+        seq.add(item, -amount);
+        addItems(seq);
+    }
+
+    public void addItems(ItemSeq items){
         if(isBeingPlayed()){
             if(state.rules.defaultTeam.core() != null){
-                state.rules.defaultTeam.items().remove(item, amount);
+                ItemModule storage = state.rules.defaultTeam.items();
+                int cap = state.rules.defaultTeam.core().storageCapacity;
+                items.each((item, amount) -> storage.add(item, Math.min(cap - storage.get(item), amount)));
             }
         }else{
             ItemSeq recv = getExtraItems();
@@ -170,7 +179,7 @@ public class Sector{
                 });
             }
 
-            recv.remove(item, amount);
+            recv.add(items);
 
             setExtraItems(recv);
         }
diff --git a/core/src/mindustry/type/StatusEffect.java b/core/src/mindustry/type/StatusEffect.java
index fda8dbbbf2..eb0bedb60c 100644
--- a/core/src/mindustry/type/StatusEffect.java
+++ b/core/src/mindustry/type/StatusEffect.java
@@ -13,8 +13,8 @@ import mindustry.gen.*;
 public class StatusEffect extends MappableContent{
     /** Damage dealt by the unit with the effect. */
     public float damageMultiplier = 1f;
-    /** Unit armor multiplier. */
-    public float armorMultiplier = 1f;
+    /** Unit health multiplier. */
+    public float healthMultiplier = 1f;
     /** Unit speed multiplier */
     public float speedMultiplier = 1f;
     /** Unit speed multiplier */
diff --git a/core/src/mindustry/ui/dialogs/CustomRulesDialog.java b/core/src/mindustry/ui/dialogs/CustomRulesDialog.java
index e14629b594..42fac7be72 100644
--- a/core/src/mindustry/ui/dialogs/CustomRulesDialog.java
+++ b/core/src/mindustry/ui/dialogs/CustomRulesDialog.java
@@ -24,8 +24,8 @@ import static arc.util.Time.*;
 import static mindustry.Vars.*;
 
 public class CustomRulesDialog extends BaseDialog{
-    private Table main;
     Rules rules;
+    private Table main;
     private Prov<Rules> resetter;
     private LoadoutDialog loadoutDialog;
     private BaseDialog banDialog;
@@ -166,7 +166,7 @@ public class CustomRulesDialog extends BaseDialog{
 
         title("@rules.title.enemy");
         check("@rules.attack", b -> rules.attackMode = b, () -> rules.attackMode);
-        check("@rules.buildai", b -> rules.waveTeam.rules().ai = b, () -> rules.waveTeam.rules().ai);
+        check("@rules.buildai", b -> rules.teams.get(rules.waveTeam).ai = rules.teams.get(rules.waveTeam).infiniteResources = b, () -> rules.teams.get(rules.waveTeam).ai);
         number("@rules.enemycorebuildradius", f -> rules.enemyCoreBuildRadius = f * tilesize, () -> Math.min(rules.enemyCoreBuildRadius / tilesize, 200));
 
         title("@rules.title.environment");
diff --git a/core/src/mindustry/ui/dialogs/PausedDialog.java b/core/src/mindustry/ui/dialogs/PausedDialog.java
index 559450a591..f09e2fe185 100644
--- a/core/src/mindustry/ui/dialogs/PausedDialog.java
+++ b/core/src/mindustry/ui/dialogs/PausedDialog.java
@@ -35,17 +35,18 @@ public class PausedDialog extends BaseDialog{
 
         if(!mobile){
             //TODO localize
-            cont.label(() -> state.getSector() == null ? "" :
-            ("[lightgray]Next turn in [accent]" + state.getSector().displayTimeRemaining() +
-                (state.rules.winWave > 0 && !state.getSector().isCaptured() ? "\n[lightgray]Reach wave[accent] " + state.rules.winWave + "[] to capture" : "")))
-            .visible(() -> state.getSector() != null).colspan(2);
+            //TODO capturing is disabled, remove?
+            //cont.label(() -> state.getSector() == null ? "" :
+            //("[lightgray]Next turn in [accent]" + state.getSector().displayTimeRemaining() +
+            //    (state.rules.winWave > 0 && !state.getSector().isCaptured() ? "\n[lightgray]Reach wave[accent] " + state.rules.winWave + "[] to capture" : "")))
+           // .visible(() -> state.getSector() != null).colspan(2);
             cont.row();
 
             float dw = 220f;
             cont.defaults().width(dw).height(55).pad(5f);
 
-            cont.button("@back", Icon.left, this::hide);
-            cont.button("@settings", Icon.settings, ui.settings::show);
+            cont.button("@back", Icon.left, this::hide).name("back");
+            cont.button("@settings", Icon.settings, ui.settings::show).name("settings");
 
             if(!state.rules.tutorial){
                 if(!state.isCampaign() && !state.isEditor()){
diff --git a/core/src/mindustry/ui/dialogs/PlanetDialog.java b/core/src/mindustry/ui/dialogs/PlanetDialog.java
index a7b667dcd8..dd63a1afeb 100644
--- a/core/src/mindustry/ui/dialogs/PlanetDialog.java
+++ b/core/src/mindustry/ui/dialogs/PlanetDialog.java
@@ -32,18 +32,18 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
     //if true, enables launching anywhere for testing
     public static boolean debugSelect = false;
 
-    final FrameBuffer buffer = new FrameBuffer(2, 2, true);
-    final PlanetRenderer planets = renderer.planets;
-    final LaunchLoadoutDialog loadouts = new LaunchLoadoutDialog();
-    final Table stable  = new Table().background(Styles.black3);
+    public final FrameBuffer buffer = new FrameBuffer(2, 2, true);
+    public final PlanetRenderer planets = renderer.planets;
+    public final LaunchLoadoutDialog loadouts = new LaunchLoadoutDialog();
+    public final Table stable  = new Table().background(Styles.black3);
 
-    int launchRange;
-    float zoom = 1f, selectAlpha = 1f;
-    @Nullable Sector selected, hovered, launchSector;
-    CoreBuild launcher;
-    Mode mode = look;
-    boolean launching;
-    Cons<Sector> listener = s -> {};
+    public int launchRange;
+    public float zoom = 1f, selectAlpha = 1f;
+    public @Nullable Sector selected, hovered, launchSector;
+    public CoreBuild launcher;
+    public Mode mode = look;
+    public boolean launching;
+    public Cons<Sector> listener = s -> {};
 
     public PlanetDialog(){
         super("", Styles.fullDialog);
@@ -237,7 +237,6 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
         cont.clear();
         titleTable.remove();
 
-
         cont.stack(
         new Element(){
             {
@@ -263,9 +262,10 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
             }
         },
         new Table(t -> {
+            t.touchable = Touchable.disabled;
             //TODO localize
             t.top();
-            t.label(() -> mode == select ? "@sectors.select" : mode == launch ? "Select Launch Sector" : "Turn " + universe.turn()).style(Styles.outlineLabel).color(Pal.accent);
+            t.label(() -> mode == select ? "@sectors.select" : mode == launch ? "Select Launch Sector" : "").style(Styles.outlineLabel).color(Pal.accent);
         })).grow();
 
     }
@@ -338,6 +338,8 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
             stable.add("[accent]Difficulty: " + (int)(sector.baseCoverage * 10)).row();
         }
 
+        //TODO sector damage is disabled, remove when finalized
+        /*
         if(sector.hasBase() && sector.hasWaves()){
             //TODO localize when finalized
             //these mechanics are likely to change and as such are not added to the bundle
@@ -345,7 +347,7 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
             stable.row();
             stable.add("[accent]" + Mathf.ceil(sectorDestructionTurns - (sector.getSecondsPassed() * 60) / turnDuration) + " turn(s)\nuntil destruction");
             stable.row();
-        }
+        }*/
 
         if(sector.save != null){
             stable.add("@sectors.resources").row();
@@ -468,7 +470,7 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
         stable.act(0f);
     }
 
-    enum Mode{
+    public enum Mode{
         /** Look around for existing sectors. Can only deploy. */
         look,
         /** Launch to a new location. */
diff --git a/core/src/mindustry/ui/dialogs/ResearchDialog.java b/core/src/mindustry/ui/dialogs/ResearchDialog.java
index a87aa2d55c..9c5e6fd3ed 100644
--- a/core/src/mindustry/ui/dialogs/ResearchDialog.java
+++ b/core/src/mindustry/ui/dialogs/ResearchDialog.java
@@ -31,14 +31,14 @@ import java.util.*;
 import static mindustry.Vars.*;
 
 public class ResearchDialog extends BaseDialog{
-    final float nodeSize = Scl.scl(60f);
-    ObjectSet<TechTreeNode> nodes = new ObjectSet<>();
-    TechTreeNode root = new TechTreeNode(TechTree.root, null);
-    Rect bounds = new Rect();
-    ItemsDisplay itemDisplay;
-    View view;
+    public final float nodeSize = Scl.scl(60f);
+    public ObjectSet<TechTreeNode> nodes = new ObjectSet<>();
+    public TechTreeNode root = new TechTreeNode(TechTree.root, null);
+    public Rect bounds = new Rect();
+    public ItemsDisplay itemDisplay;
+    public View view;
 
-    ItemSeq items;
+    public ItemSeq items;
 
     public ResearchDialog(){
         super("");
@@ -114,7 +114,7 @@ public class ResearchDialog extends BaseDialog{
         buttons.button("@database", Icon.book, () -> {
             hide();
             ui.database.show();
-        }).size(210f, 64f);
+        }).size(210f, 64f).name("database");
 
         //scaling/drag input
         addListener(new InputListener(){
@@ -250,7 +250,7 @@ public class ResearchDialog extends BaseDialog{
         return node.content.unlocked() || !node.objectives.contains(i -> !i.complete());
     }
 
-    void showToast(String info){
+    public void showToast(String info){
         Table table = new Table();
         table.actions(Actions.fadeOut(0.5f, Interp.fade), Actions.remove());
         table.top().add(info);
@@ -279,11 +279,11 @@ public class ResearchDialog extends BaseDialog{
         }
     }
 
-    class TechTreeNode extends TreeNode<TechTreeNode>{
-        final TechNode node;
-        boolean visible = true, selectable = true;
+    public class TechTreeNode extends TreeNode<TechTreeNode>{
+        public final TechNode node;
+        public boolean visible = true, selectable = true;
 
-        TechTreeNode(TechNode node, TechTreeNode parent){
+        public TechTreeNode(TechNode node, TechTreeNode parent){
             this.node = node;
             this.parent = parent;
             this.width = this.height = nodeSize;
@@ -297,11 +297,11 @@ public class ResearchDialog extends BaseDialog{
         }
     }
 
-    class View extends Group{
-        float panX = 0, panY = -200, lastZoom = -1;
-        boolean moved = false;
-        ImageButton hoverNode;
-        Table infoTable = new Table();
+    public class View extends Group{
+        public float panX = 0, panY = -200, lastZoom = -1;
+        public boolean moved = false;
+        public ImageButton hoverNode;
+        public Table infoTable = new Table();
 
         {
             infoTable.touchable = Touchable.enabled;
@@ -400,7 +400,8 @@ public class ResearchDialog extends BaseDialog{
                 }
             }
 
-            return false;
+            //can always spend when locked
+            return node.content.locked();
         }
 
         void spend(TechNode node){
@@ -414,7 +415,7 @@ public class ResearchDialog extends BaseDialog{
                 ItemStack completed = node.finishedRequirements[i];
 
                 //amount actually taken from inventory
-                int used = Math.min(req.amount - completed.amount, items.get(req.item));
+                int used = Math.max(Math.min(req.amount - completed.amount, items.get(req.item)), 0);
                 items.remove(req.item, used);
                 completed.amount += used;
 
diff --git a/core/src/mindustry/ui/dialogs/SchematicsDialog.java b/core/src/mindustry/ui/dialogs/SchematicsDialog.java
index 99a087d39f..8c99272e89 100644
--- a/core/src/mindustry/ui/dialogs/SchematicsDialog.java
+++ b/core/src/mindustry/ui/dialogs/SchematicsDialog.java
@@ -4,6 +4,7 @@ import arc.*;
 import arc.graphics.*;
 import arc.graphics.Texture.*;
 import arc.graphics.g2d.*;
+import arc.input.*;
 import arc.math.*;
 import arc.scene.style.*;
 import arc.scene.ui.*;
@@ -106,18 +107,36 @@ public class SchematicsDialog extends BaseDialog{
                             });
 
                             buttons.button(Icon.pencil, style, () -> {
-                                ui.showTextInput("@schematic.rename", "@name", s.name(), res -> {
-                                    Schematic replacement = schematics.all().find(other -> other.name().equals(res) && other != s);
-                                    if(replacement != null){
-                                        //renaming to an existing schematic is not allowed, as it is not clear how the tags would be merged, and which one should be removed
-                                        ui.showErrorMessage("@schematic.exists");
-                                        return;
-                                    }
+                                new Dialog("@schematic.rename"){{
+                                    cont.margin(30).add("@name").padRight(6f);
+                                    TextField nameField = cont.field(s.name(), null).size(400f, 55f).addInputDialog().get();
 
-                                    s.tags.put("name", res);
-                                    s.save();
-                                    rebuildPane[0].run();
-                                });
+                                    cont.row();
+
+                                    cont.margin(30).add("@editor.description").padRight(6f);
+                                    TextField descripionField = cont.area(s.description(), Styles.areaField, t -> {}).size(400f, 140f).addInputDialog().get();
+
+                                    Runnable accept = () -> {
+                                        s.tags.put("name", nameField.getText());
+                                        s.tags.put("description", descripionField.getText());
+                                        s.save();
+                                        hide();
+                                        rebuildPane[0].run();
+                                    };
+
+                                    buttons.defaults().size(120, 54).pad(4);
+                                    buttons.button("@ok", accept).disabled(b -> nameField.getText().isEmpty());
+                                    buttons.button("@cancel", this::hide);
+
+                                    keyDown(KeyCode.enter, () -> {
+                                        if(!nameField.getText().isEmpty() && Core.scene.getKeyboardFocus() != descripionField){
+                                            accept.run();
+                                        }
+                                    });
+                                    keyDown(KeyCode.escape, this::hide);
+                                    keyDown(KeyCode.back, this::hide);
+                                    show();
+                                }};
                             });
 
                             if(s.hasSteamID()){
diff --git a/core/src/mindustry/ui/fragments/HudFragment.java b/core/src/mindustry/ui/fragments/HudFragment.java
index 38ae0cd1f2..f56d507c4d 100644
--- a/core/src/mindustry/ui/fragments/HudFragment.java
+++ b/core/src/mindustry/ui/fragments/HudFragment.java
@@ -15,6 +15,7 @@ import arc.scene.ui.layout.*;
 import arc.struct.*;
 import arc.util.*;
 import mindustry.annotations.Annotations.*;
+import mindustry.content.*;
 import mindustry.core.GameState.*;
 import mindustry.ctype.*;
 import mindustry.game.EventType.*;
@@ -47,6 +48,26 @@ public class HudFragment extends Fragment{
     @Override
     public void build(Group parent){
 
+        //warn about guardian/boss waves
+        Events.on(WaveEvent.class, e -> {
+            int max = 10;
+            outer:
+            for(int i = state.wave - 1; i <= state.wave + max; i++){
+                for(SpawnGroup group : state.rules.spawns){
+                    if(group.effect == StatusEffects.boss && group.getUnitsSpawned(i) > 0){
+                        int diff = (i + 2) - state.wave;
+
+                        //increments at which to warn about incoming guardian
+                        if(diff == 1 || diff == 2 || diff == 5 || diff == 10){
+                            showToast(Icon.warning, Core.bundle.format("wave.guardianwarn" + (diff == 1 ? ".one" : ""), diff));
+                        }
+
+                        break outer;
+                    }
+                }
+            }
+        });
+
         //TODO details and stuff
         Events.on(SectorCaptureEvent.class, e ->{
             //TODO localize
@@ -63,36 +84,25 @@ public class HudFragment extends Fragment{
             coreItems.clear();
         });
 
-        Events.on(TurnEvent.class, e -> {
-            Seq<Sector> attacked = universe.getAttacked(state.getSector().planet);
-
-            if(attacked.any()){
-
-                //TODO localize
-                String text = attacked.size > 1 ? attacked.size + " sectors attacked." : "Sector " + attacked.first().id + " under attack.";
-
-                showToast(Icon.warning, text);
-            }
-
-            //ui.announce("[accent][[ Turn " + universe.turn() + " ]\n[scarlet]" + attackedSectors.size + "[lightgray] sector(s) attacked.");
-        });
-
         //paused table
         parent.fill(t -> {
+            t.name = "paused";
             t.top().visible(() -> state.isPaused()).touchable = Touchable.disabled;
             t.table(Styles.black5, top -> top.add("@paused").style(Styles.outlineLabel).pad(8f)).growX();
         });
 
         //minimap + position
         parent.fill(t -> {
+            t.name = "minimap/position";
             t.visible(() -> Core.settings.getBool("minimap") && !state.rules.tutorial && shown);
             //minimap
-            t.add(new Minimap());
+            t.add(new Minimap()).name("minimap");
             t.row();
             //position
             t.label(() -> player.tileX() + "," + player.tileY())
             .visible(() -> Core.settings.getBool("position") && !state.rules.tutorial)
-            .touchable(Touchable.disabled);
+            .touchable(Touchable.disabled)
+            .name("position");
             t.top().right();
         });
 
@@ -104,15 +114,18 @@ public class HudFragment extends Fragment{
 
             if(mobile){
                 cont.table(select -> {
+                    select.name = "mobile buttons";
                     select.left();
                     select.defaults().size(dsize).left();
 
                     ImageButtonStyle style = Styles.clearTransi;
 
-                    select.button(Icon.menu, style, ui.paused::show);
+                    select.button(Icon.menu, style, ui.paused::show).name("menu");
                     flip = select.button(Icon.upOpen, style, this::toggleMenus).get();
+                    flip.name = "flip";
 
-                    select.button(Icon.paste, style, ui.schematics::show);
+                    select.button(Icon.paste, style, ui.schematics::show)
+                    .name("schematics");
 
                     select.button(Icon.pause, style, () -> {
                         if(net.active()){
@@ -141,7 +154,7 @@ public class HudFragment extends Fragment{
                         }else{
                             ui.database.show();
                         }
-                    }).update(i -> {
+                    }).name("chat").update(i -> {
                         if(net.active() && mobile){
                             i.getStyle().imageUp = Icon.chat;
                         }else if(state.isCampaign()){
@@ -167,14 +180,15 @@ public class HudFragment extends Fragment{
 
             Table wavesMain, editorMain;
 
-            cont.stack(wavesMain = new Table(), editorMain = new Table()).height(wavesMain.getPrefHeight());
+            cont.stack(wavesMain = new Table(), editorMain = new Table()).height(wavesMain.getPrefHeight())
+            .name("waves/editor");
 
             wavesMain.visible(() -> shown && !state.isEditor());
-            wavesMain.top().left();
+            wavesMain.top().left().name = "waves";
 
             wavesMain.table(s -> {
                 //wave info button with text
-                s.add(makeStatusTable()).grow();
+                s.add(makeStatusTable()).grow().name("status");
 
                 //table with button to skip wave
                 s.button(Icon.play, Styles.righti, 30f, () -> {
@@ -183,18 +197,22 @@ public class HudFragment extends Fragment{
                     }else{
                         logic.skipWave();
                     }
-                }).growY().fillX().right().width(40f).disabled(b -> !canSkipWave()).visible(() -> state.rules.waves);
+                }).growY().fillX().right().width(40f).disabled(b -> !canSkipWave())
+                .visible(() -> state.rules.waves).name("skip");
             }).width(dsize * 5 + 4f);
 
             wavesMain.row();
 
             wavesMain.table(Tex.button, t -> t.margin(10f).add(new Bar("boss.health", Pal.health, () -> state.boss() == null ? 0f : state.boss().healthf()).blink(Color.white))
-            .grow()).fillX().visible(() -> state.rules.waves && state.boss() != null).height(60f).get();
+            .grow()).fillX().visible(() -> state.rules.waves && state.boss() != null).height(60f).get()
+            .name = "boss";
 
             wavesMain.row();
 
+            editorMain.name = "editor";
             editorMain.table(Tex.buttonEdge4, t -> {
                 //t.margin(0f);
+                t.name = "teams";
                 t.add("@editor.teams").growX().left();
                 t.row();
                 t.table(teams -> {
@@ -215,29 +233,33 @@ public class HudFragment extends Fragment{
             }).width(dsize * 5 + 4f);
             editorMain.visible(() -> shown && state.isEditor());
 
-
             //fps display
             cont.table(info -> {
+                info.name = "fps/ping";
                 info.touchable = Touchable.disabled;
                 info.top().left().margin(4).visible(() -> Core.settings.getBool("fps") && shown);
                 info.update(() -> info.setTranslation(state.rules.waves || state.isEditor() ? 0f : -Scl.scl(dsize * 4 + 3), 0));
                 IntFormat fps = new IntFormat("fps");
                 IntFormat ping = new IntFormat("ping");
 
-                info.label(() -> fps.get(Core.graphics.getFramesPerSecond())).left().style(Styles.outlineLabel);
+                info.label(() -> fps.get(Core.graphics.getFramesPerSecond())).left()
+                .style(Styles.outlineLabel).name("fps");
                 info.row();
-                info.label(() -> ping.get(netClient.getPing())).visible(net::client).left().style(Styles.outlineLabel);
+                info.label(() -> ping.get(netClient.getPing())).visible(net::client).left()
+                .style(Styles.outlineLabel).name("ping");
             }).top().left();
         });
 
         //core items
         parent.fill(t -> {
+            t.name = "coreitems";
             t.top().add(coreItems);
             t.visible(() -> Core.settings.getBool("coreitems") && !mobile && !state.isPaused() && shown);
         });
 
         //spawner warning
         parent.fill(t -> {
+            t.name = "nearpoint";
             t.touchable = Touchable.disabled;
             t.table(Styles.black, c -> c.add("@nearpoint")
             .update(l -> l.setColor(Tmp.c1.set(Color.white).lerp(Color.scarlet, Mathf.absin(Time.time(), 10f, 1f))))
@@ -246,12 +268,14 @@ public class HudFragment extends Fragment{
         });
 
         parent.fill(t -> {
+            t.name = "waiting";
             t.visible(() -> netServer.isWaitingForPlayers());
             t.table(Tex.button, c -> c.add("@waiting.players"));
         });
 
         //'core is under attack' table
         parent.fill(t -> {
+            t.name = "coreattack";
             t.touchable = Touchable.disabled;
             float notifDuration = 240f;
             float[] coreAttackTime = {0};
@@ -285,6 +309,7 @@ public class HudFragment extends Fragment{
 
         //tutorial text
         parent.fill(t -> {
+            t.name = "tutorial";
             Runnable resize = () -> {
                 t.clearChildren();
                 t.top().right().visible(() -> state.rules.tutorial);
@@ -307,11 +332,13 @@ public class HudFragment extends Fragment{
 
         //'saving' indicator
         parent.fill(t -> {
+            t.name = "saving";
             t.bottom().visible(() -> control.saves.isSaving());
             t.add("@saving").style(Styles.outlineLabel);
         });
 
         parent.fill(p -> {
+            p.name = "hudtext";
             p.top().table(Styles.black3, t -> t.margin(4).label(() -> hudText)
             .style(Styles.outlineLabel)).padTop(10).visible(p.color.a >= 0.001f);
             p.update(() -> {
@@ -327,6 +354,7 @@ public class HudFragment extends Fragment{
         //TODO DEBUG: rate table
         if(false)
         parent.fill(t -> {
+            t.name = "rates";
             t.bottom().left();
             t.table(Styles.black6, c -> {
                 Bits used = new Bits(content.items().size);
diff --git a/core/src/mindustry/ui/fragments/MenuFragment.java b/core/src/mindustry/ui/fragments/MenuFragment.java
index 45faa9bf10..cd8d13be0d 100644
--- a/core/src/mindustry/ui/fragments/MenuFragment.java
+++ b/core/src/mindustry/ui/fragments/MenuFragment.java
@@ -45,6 +45,7 @@ public class MenuFragment extends Fragment{
 
         parent.fill(c -> {
             container = c;
+            c.name = "menu container";
 
             if(!mobile){
                 buildDesktop();
@@ -57,8 +58,8 @@ public class MenuFragment extends Fragment{
 
         //info icon
         if(mobile){
-            parent.fill(c -> c.bottom().left().button("", Styles.infot, ui.about::show).size(84, 45));
-            parent.fill(c -> c.bottom().right().button("", Styles.discordt, ui.discord::show).size(84, 45));
+            parent.fill(c -> c.bottom().left().button("", Styles.infot, ui.about::show).size(84, 45).name("info"));
+            parent.fill(c -> c.bottom().right().button("", Styles.discordt, ui.discord::show).size(84, 45).name("discord"));
         }else if(becontrol.active()){
             parent.fill(c -> c.bottom().right().button("@be.check", Icon.refresh, () -> {
                 ui.loadfrag.show();
@@ -68,7 +69,7 @@ public class MenuFragment extends Fragment{
                         ui.showInfo("@be.noupdates");
                     }
                 });
-            }).size(200, 60).update(t -> {
+            }).size(200, 60).name("becheck").update(t -> {
                 t.getLabel().setColor(becontrol.isUpdateAvailable() ? Tmp.c1.set(Color.white).lerp(Pal.accent, Mathf.absin(5f, 1f)) : Color.white);
             }));
         }
@@ -93,6 +94,7 @@ public class MenuFragment extends Fragment{
 
     private void buildMobile(){
         container.clear();
+        container.name = "buttons";
         container.setSize(Core.graphics.getWidth(), Core.graphics.getHeight());
 
         float size = 120f;
@@ -153,7 +155,6 @@ public class MenuFragment extends Fragment{
         container.clear();
         container.setSize(Core.graphics.getWidth(), Core.graphics.getHeight());
 
-
         float width = 230f;
         Drawable background = Styles.black6;
 
@@ -161,6 +162,7 @@ public class MenuFragment extends Fragment{
         container.add().width(Core.graphics.getWidth()/10f);
         container.table(background, t -> {
             t.defaults().width(width).height(70f);
+            t.name = "buttons";
 
             buttons(t,
                 new Buttoni("@play", Icon.play,
@@ -183,6 +185,7 @@ public class MenuFragment extends Fragment{
 
         container.table(background, t -> {
             submenu = t;
+            t.name = "submenu";
             t.color.a = 0f;
             t.top();
             t.defaults().width(width).height(70f);
diff --git a/core/src/mindustry/ui/fragments/MinimapFragment.java b/core/src/mindustry/ui/fragments/MinimapFragment.java
index 7c9d3b5994..43ad3163b0 100644
--- a/core/src/mindustry/ui/fragments/MinimapFragment.java
+++ b/core/src/mindustry/ui/fragments/MinimapFragment.java
@@ -18,7 +18,7 @@ public class MinimapFragment extends Fragment{
     private boolean shown;
     float panx, pany, zoom = 1f, lastZoom = -1;
     private float baseSize = Scl.scl(5f);
-    private Element elem;
+    public Element elem;
 
     @Override
     public void build(Group parent){
diff --git a/core/src/mindustry/ui/fragments/PlayerListFragment.java b/core/src/mindustry/ui/fragments/PlayerListFragment.java
index eae9407131..c006dcf3ff 100644
--- a/core/src/mindustry/ui/fragments/PlayerListFragment.java
+++ b/core/src/mindustry/ui/fragments/PlayerListFragment.java
@@ -24,7 +24,9 @@ public class PlayerListFragment extends Fragment{
 
     @Override
     public void build(Group parent){
+        content.name = "players";
         parent.fill(cont -> {
+            cont.name = "playerlist";
             cont.visible(() -> visible);
             cont.update(() -> {
                 if(!(net.active() && state.isGame())){
@@ -47,6 +49,7 @@ public class PlayerListFragment extends Fragment{
                 sField = pane.field(null, text -> {
                     rebuild();
                 }).grow().pad(8).get();
+                sField.name = "search";
                 sField.setMaxLength(maxNameLength);
                 sField.setMessageText(Core.bundle.format("players.search"));
 
@@ -56,6 +59,7 @@ public class PlayerListFragment extends Fragment{
 
                 pane.table(menu -> {
                     menu.defaults().growX().height(50f).fillY();
+                    menu.name = "menu";
 
                     menu.button("@server.bans", ui.bans::show).disabled(b -> net.client());
                     menu.button("@server.admins", ui.admins::show).disabled(b -> net.client());
@@ -99,6 +103,7 @@ public class PlayerListFragment extends Fragment{
             };
             table.margin(8);
             table.add(new Image(user.icon()).setScaling(Scaling.bounded)).grow();
+            table.name = user.name();
 
             button.add(table).size(h);
             button.labelWrap("[#" + user.color().toString().toUpperCase() + "]" + user.name()).width(170f).pad(10);
diff --git a/core/src/mindustry/ui/fragments/ScriptConsoleFragment.java b/core/src/mindustry/ui/fragments/ScriptConsoleFragment.java
index 73861538e3..3f33dd1b4b 100644
--- a/core/src/mindustry/ui/fragments/ScriptConsoleFragment.java
+++ b/core/src/mindustry/ui/fragments/ScriptConsoleFragment.java
@@ -39,7 +39,6 @@ public class ScriptConsoleFragment extends Table{
     };
 
     public ScriptConsoleFragment(){
-
         setFillParent(true);
         font = Fonts.def;
 
diff --git a/core/src/mindustry/world/Block.java b/core/src/mindustry/world/Block.java
index 189a9c21c1..95d9a426e0 100644
--- a/core/src/mindustry/world/Block.java
+++ b/core/src/mindustry/world/Block.java
@@ -193,6 +193,8 @@ public class Block extends UnlockableContent{
     public BuildPlaceability buildPlaceability = BuildPlaceability.always;
     /** Multiplier for speed of building this block. */
     public float buildCostMultiplier = 1f;
+    /** Multiplier for cost of research in tech tree. */
+    public float researchCostMultiplier = 1;
     /** Whether this block has instant transfer.*/
     public boolean instantTransfer = false;
     /** Whether you can rotate this block with Keybind rotateplaced + Scroll Wheel. */
@@ -619,7 +621,7 @@ public class Block extends UnlockableContent{
     public ItemStack[] researchRequirements(){
         ItemStack[] out = new ItemStack[requirements.length];
         for(int i = 0; i < out.length; i++){
-            int quantity = 40 + Mathf.round(Mathf.pow(requirements[i].amount, 1.25f) * 20, 10);
+            int quantity = 40 + Mathf.round(Mathf.pow(requirements[i].amount, 1.25f) * 20 * researchCostMultiplier, 10);
 
             out[i] = new ItemStack(requirements[i].item, UI.roundAmount(quantity));
         }
diff --git a/core/src/mindustry/world/blocks/ConstructBlock.java b/core/src/mindustry/world/blocks/ConstructBlock.java
index 8bd9a77c47..c228397a32 100644
--- a/core/src/mindustry/world/blocks/ConstructBlock.java
+++ b/core/src/mindustry/world/blocks/ConstructBlock.java
@@ -58,7 +58,7 @@ public class ConstructBlock extends Block{
     }
 
     @Remote(called = Loc.server)
-    public static void constructFinish(Tile tile, Block block, Unit builder, byte rotation, Team team, Object config){
+    public static void constructFinish(Tile tile, Block block, @Nullable Unit builder, byte rotation, Team team, Object config){
         if(tile == null) return;
 
         float healthf = tile.build == null ? 1f : tile.build.healthf();
@@ -76,6 +76,10 @@ public class ConstructBlock extends Block{
             if(prev != null && prev.size > 0){
                 tile.build.overwrote(prev);
             }
+
+            if(builder != null && builder.isPlayer()){
+                tile.build.lastAccessed = builder.getPlayer().name;
+            }
         }
 
         //last builder was this local client player, call placed()
@@ -142,6 +146,9 @@ public class ConstructBlock extends Block{
         public Block previous;
         public Object lastConfig;
 
+        @Nullable
+        public Unit lastBuilder;
+
         private float[] accumulator;
         private float[] totalAccumulator;
 
@@ -214,6 +221,10 @@ public class ConstructBlock extends Block{
                 return;
             }
 
+            if(builder.isPlayer()){
+                lastBuilder = builder;
+            }
+
             lastConfig = config;
 
             if(cblock.requirements.length != accumulator.length || totalAccumulator.length != cblock.requirements.length){
@@ -233,13 +244,18 @@ public class ConstructBlock extends Block{
             progress = Mathf.clamp(progress + maxProgress);
 
             if(progress >= 1f || state.rules.infiniteResources){
-                constructed(tile, cblock, builder, (byte)rotation, builder.team, config);
+                if(lastBuilder == null) lastBuilder = builder;
+                constructed(tile, cblock, lastBuilder, (byte)rotation, builder.team, config);
             }
         }
 
         public void deconstruct(Unit builder, @Nullable Building core, float amount){
             float deconstructMultiplier = state.rules.deconstructRefundMultiplier;
 
+            if(builder.isPlayer()){
+                lastBuilder = builder;
+            }
+
             if(cblock != null){
                 ItemStack[] requirements = cblock.requirements;
                 if(requirements.length != accumulator.length || totalAccumulator.length != requirements.length){
@@ -271,7 +287,8 @@ public class ConstructBlock extends Block{
             progress = Mathf.clamp(progress - amount);
 
             if(progress <= 0 || state.rules.infiniteResources){
-                Call.deconstructFinish(tile, this.cblock == null ? previous : this.cblock, builder);
+                if(lastBuilder == null) lastBuilder = builder;
+                Call.deconstructFinish(tile, this.cblock == null ? previous : this.cblock, lastBuilder);
             }
         }
 
diff --git a/core/src/mindustry/world/blocks/defense/Wall.java b/core/src/mindustry/world/blocks/defense/Wall.java
index 873cbaea78..abb941b899 100644
--- a/core/src/mindustry/world/blocks/defense/Wall.java
+++ b/core/src/mindustry/world/blocks/defense/Wall.java
@@ -34,7 +34,7 @@ public class Wall extends Block{
         solid = true;
         destructible = true;
         group = BlockGroup.walls;
-        buildCostMultiplier = 5f;
+        buildCostMultiplier = 6f;
         canOverdrive = false;
     }
 
diff --git a/core/src/mindustry/world/blocks/defense/turrets/ChargeTurret.java b/core/src/mindustry/world/blocks/defense/turrets/ChargeTurret.java
index 3680cce446..15feaf0379 100644
--- a/core/src/mindustry/world/blocks/defense/turrets/ChargeTurret.java
+++ b/core/src/mindustry/world/blocks/defense/turrets/ChargeTurret.java
@@ -1,10 +1,13 @@
 package mindustry.world.blocks.defense.turrets;
 
+import arc.audio.*;
 import arc.math.*;
 import arc.util.*;
 import mindustry.content.*;
 import mindustry.entities.*;
 import mindustry.entities.bullet.*;
+import mindustry.type.*;
+import mindustry.gen.*;
 
 import static mindustry.Vars.*;
 
@@ -14,6 +17,7 @@ public class ChargeTurret extends PowerTurret{
     public float chargeMaxDelay = 10f;
     public Effect chargeEffect = Fx.none;
     public Effect chargeBeginEffect = Fx.none;
+    public Sound chargeSound = Sounds.none;
 
     public ChargeTurret(String name){
         super(name);
@@ -28,7 +32,8 @@ public class ChargeTurret extends PowerTurret{
 
             tr.trns(rotation, size * tilesize / 2f);
             chargeBeginEffect.at(x + tr.x, y + tr.y, rotation);
-
+            chargeSound.at(x + tr.x, y + tr.y, 1);
+            
             for(int i = 0; i < chargeEffects; i++){
                 Time.run(Mathf.random(chargeMaxDelay), () -> {
                     if(!isValid()) return;
diff --git a/core/src/mindustry/world/blocks/defense/turrets/Turret.java b/core/src/mindustry/world/blocks/defense/turrets/Turret.java
index c535f27135..411ee782ec 100644
--- a/core/src/mindustry/world/blocks/defense/turrets/Turret.java
+++ b/core/src/mindustry/world/blocks/defense/turrets/Turret.java
@@ -434,7 +434,7 @@ public abstract class Turret extends Block{
 
             fshootEffect.at(x + tr.x, y + tr.y, rotation);
             fsmokeEffect.at(x + tr.x, y + tr.y, rotation);
-            shootSound.at(tile, Mathf.random(0.9f, 1.1f));
+            shootSound.at(x + tr.x, y + tr.y, Mathf.random(0.9f, 1.1f));
 
             if(shootShake > 0){
                 Effect.shake(shootShake, shootShake, this);
diff --git a/core/src/mindustry/world/blocks/logic/LogicBlock.java b/core/src/mindustry/world/blocks/logic/LogicBlock.java
index f3962a5448..aecf5d4149 100644
--- a/core/src/mindustry/world/blocks/logic/LogicBlock.java
+++ b/core/src/mindustry/world/blocks/logic/LogicBlock.java
@@ -1,7 +1,6 @@
 package mindustry.world.blocks.logic;
 
 import arc.func.*;
-import arc.graphics.g2d.*;
 import arc.math.geom.*;
 import arc.scene.ui.layout.*;
 import arc.struct.Bits;
@@ -9,7 +8,6 @@ import arc.struct.*;
 import arc.util.*;
 import arc.util.io.*;
 import mindustry.*;
-import mindustry.ai.types.*;
 import mindustry.gen.*;
 import mindustry.graphics.*;
 import mindustry.io.*;
@@ -425,7 +423,6 @@ public class LogicBlock extends Block{
 
         @Override
         public void buildConfiguration(Table table){
-
             table.button(Icon.pencil, Styles.clearTransi, () -> {
                 Vars.ui.logic.show(code, code -> {
                     configure(compress(code, relativeConnections()));
@@ -433,19 +430,6 @@ public class LogicBlock extends Block{
             }).size(40);
         }
 
-        @Override
-        public void draw(){
-            super.draw();
-
-            if(ui.hudfrag.blockfrag.hover() instanceof Unit unit && unit.controller() instanceof LogicAI ai && ai.controller == this){
-                Draw.z(Layer.overlayUI);
-                Drawf.square(x, y, size * tilesize/2f + 2f);
-                if(!unit.within(this, unit.hitSize * 2f)){
-                    Drawf.arrow(unit.x, unit.y, x, y, unit.hitSize *2f, 4f);
-                }
-            }
-        }
-
         @Override
         public boolean onConfigureTileTapped(Building other){
             if(this == other){
diff --git a/core/src/mindustry/world/blocks/power/PowerNode.java b/core/src/mindustry/world/blocks/power/PowerNode.java
index 245c3d4f7e..5d033c99b7 100644
--- a/core/src/mindustry/world/blocks/power/PowerNode.java
+++ b/core/src/mindustry/world/blocks/power/PowerNode.java
@@ -112,6 +112,12 @@ public class PowerNode extends PowerBlock{
             (UI.formatAmount((int)entity.power.graph.getLastPowerStored())), UI.formatAmount((int)entity.power.graph.getLastCapacity())),
             () -> Pal.powerBar,
             () -> Mathf.clamp(entity.power.graph.getLastPowerStored() / entity.power.graph.getLastCapacity())));
+
+        bars.add("connections", entity -> new Bar(() ->
+        Core.bundle.format("bar.powerlines", entity.power.links.size, maxNodes),
+            () -> Pal.items,
+            () -> (float)entity.power.links.size / (float)maxNodes
+        ));
     }
 
     @Override
diff --git a/core/src/mindustry/world/blocks/storage/CoreBlock.java b/core/src/mindustry/world/blocks/storage/CoreBlock.java
index 295a127f2b..bdb16eb674 100644
--- a/core/src/mindustry/world/blocks/storage/CoreBlock.java
+++ b/core/src/mindustry/world/blocks/storage/CoreBlock.java
@@ -14,6 +14,7 @@ import mindustry.game.EventType.*;
 import mindustry.game.*;
 import mindustry.gen.*;
 import mindustry.graphics.*;
+import mindustry.logic.*;
 import mindustry.type.*;
 import mindustry.ui.*;
 import mindustry.world.*;
@@ -157,6 +158,13 @@ public class CoreBlock extends StorageBlock{
         public int storageCapacity;
         //note that this unit is never actually used for control; the possession handler makes the player respawn when this unit is controlled
         public BlockUnitc unit = Nulls.blockUnit;
+        public boolean noEffect = false;
+
+        @Override
+        public double sense(LAccess sensor){
+            if(sensor == LAccess.itemCapacity) return storageCapacity;
+            return super.sense(sensor);
+        }
 
         @Override
         public void created(){
@@ -195,7 +203,7 @@ public class CoreBlock extends StorageBlock{
 
         @Override
         public boolean acceptItem(Building source, Item item){
-            return items.get(item) < getMaximumAccepted(item);
+            return items.get(item) < getMaximumAccepted(item) || incinerate();
         }
 
         @Override
@@ -264,6 +272,10 @@ public class CoreBlock extends StorageBlock{
             return tile instanceof StorageBuild && (((StorageBuild)tile).linkedCore == core || ((StorageBuild)tile).linkedCore == null);
         }
 
+        public boolean incinerate(){
+            return state.isCampaign();
+        }
+
         @Override
         public float handleDamage(float amount){
             if(player != null && team == player.team()){
@@ -298,16 +310,51 @@ public class CoreBlock extends StorageBlock{
             }
         }
 
+        @Override
+        public void onDestroyed(){
+            super.onDestroyed();
+
+            if(state.isCampaign() && team == state.rules.waveTeam){
+                //do not recache
+                world.setGenerating(true);
+                tile.setOverlay(Blocks.spawn);
+                world.setGenerating(false);
+
+                if(!spawner.getSpawns().contains(tile)){
+                    spawner.getSpawns().add(tile);
+                }
+                spawner.doShockwave(x, y);
+            }
+        }
+
         @Override
         public void placed(){
             super.placed();
             state.teams.registerCore(this);
         }
 
+        @Override
+        public void itemTaken(Item item){
+            if(state.isCampaign()){
+                //update item taken amount
+                state.secinfo.handleCoreItem(item, -1);
+            }
+        }
+
         @Override
         public void handleItem(Building source, Item item){
             if(net.server() || !net.active()){
-                super.handleItem(source, item);
+
+                if(items.get(item) >= getMaximumAccepted(item)){
+                    //create item incineration effect at random intervals
+                    if(!noEffect){
+                        incinerateEffect(this, source);
+                    }
+                    noEffect = false;
+                }else{
+                    super.handleItem(source, item);
+                }
+
                 if(state.rules.tutorial){
                     Events.fire(new CoreItemDeliverEvent());
                 }
diff --git a/core/src/mindustry/world/blocks/storage/StorageBlock.java b/core/src/mindustry/world/blocks/storage/StorageBlock.java
index 320d70868a..50eb65a270 100644
--- a/core/src/mindustry/world/blocks/storage/StorageBlock.java
+++ b/core/src/mindustry/world/blocks/storage/StorageBlock.java
@@ -1,10 +1,13 @@
 package mindustry.world.blocks.storage;
 
+import arc.math.*;
 import arc.struct.*;
 import arc.util.*;
+import mindustry.content.*;
 import mindustry.gen.*;
 import mindustry.type.*;
 import mindustry.world.*;
+import mindustry.world.blocks.storage.CoreBlock.*;
 import mindustry.world.meta.*;
 
 public class StorageBlock extends Block{
@@ -22,6 +25,16 @@ public class StorageBlock extends Block{
         return false;
     }
 
+    public static void incinerateEffect(Building self, Building source){
+        if(Mathf.chance(0.1)){
+            Tile edge = Edges.getFacingEdge(source, self);
+            Tile edge2 = Edges.getFacingEdge(self, source);
+            if(edge != null && edge2 != null){
+                Fx.fuelburn.at((edge.worldx() + edge2.worldx())/2f, (edge.worldy() + edge2.worldy())/2f);
+            }
+        }
+    }
+
     public class StorageBuild extends Building{
         protected @Nullable Building linkedCore;
 
@@ -30,6 +43,17 @@ public class StorageBlock extends Block{
             return linkedCore != null ? linkedCore.acceptItem(source, item) : items.get(item) < getMaximumAccepted(item);
         }
 
+        @Override
+        public void handleItem(Building source, Item item){
+            if(linkedCore != null){
+                incinerateEffect(this, source);
+                ((CoreBuild)linkedCore).noEffect = true;
+                linkedCore.handleItem(source, item);
+            }else{
+                super.handleItem(source, item);
+            }
+        }
+
         @Override
         public int getMaximumAccepted(Item item){
             return itemCapacity;
diff --git a/core/src/mindustry/world/blocks/storage/Unloader.java b/core/src/mindustry/world/blocks/storage/Unloader.java
index 86ce15956e..524d6eb939 100644
--- a/core/src/mindustry/world/blocks/storage/Unloader.java
+++ b/core/src/mindustry/world/blocks/storage/Unloader.java
@@ -66,6 +66,7 @@ public class Unloader extends Block{
                             }else{
                                 other.items.remove(item, 1);
                             }
+                            other.itemTaken(item);
                         }
                     }
                 }
diff --git a/servers.json b/servers.json
index 177f25f676..5990afd487 100644
--- a/servers.json
+++ b/servers.json
@@ -35,6 +35,9 @@
   {
     "address": "aamindustry.play.ai:6568"
   },
+  {
+    "address": "aamindustry.play.ai:6569"
+  },
   {
     "address": "aamindustry.play.ai:6570"
   },
@@ -74,6 +77,9 @@
   {
     "address": "pandorum.su:9999"
   },
+  {
+    "address": "mindustryranked.ddns.net"
+  },
   {
     "address": "attack.pearkin.net"
   }
diff --git a/servers_be.json b/servers_be.json
index 5ebfae37df..ae667423c5 100644
--- a/servers_be.json
+++ b/servers_be.json
@@ -7,5 +7,14 @@
   },
   {
     "address": "md.surrealment.com"
+  },
+  {
+    "address": "routerchain.ddns.net"
+  },
+  {
+    "address": "mindustry.pl:6660"
+  },
+  {
+    "address": "be.wayzer.cf"
   }
 ]