diff --git a/core/src/mindustry/content/Blocks.java b/core/src/mindustry/content/Blocks.java
index ebf00a7a75..cc02c347eb 100644
--- a/core/src/mindustry/content/Blocks.java
+++ b/core/src/mindustry/content/Blocks.java
@@ -1193,7 +1193,7 @@ public class Blocks{
             liquidCapacity = 40f;
             consumes.power(2f);
 
-            heatRequirement = 5f;
+            heatRequirement = 6f;
 
             //TODO continuous output
             outputLiquid = new LiquidStack(Liquids.nitrogen, 4f / 60f);
@@ -1222,7 +1222,7 @@ public class Blocks{
         }};
 
         electricHeater = new HeatProducer("electric-heater"){{
-            requirements(Category.crafting, with(Items.tungsten, 30, Items.graphite, 30));
+            requirements(Category.crafting, with(Items.tungsten, 30, Items.oxide, 30));
 
             researchCostMultiplier = 4f;
 
@@ -1231,7 +1231,7 @@ public class Blocks{
             drawer.iconOverride = new String[]{""};
             size = 2;
             heatOutput = 3f;
-            consumes.power(0.5f / 60f);
+            consumes.power(50f / 60f);
         }};
 
         phaseHeater = new HeatProducer("phase-heater"){{
@@ -2237,7 +2237,7 @@ public class Blocks{
         chemicalCombustionChamber = new ConsumeGenerator("chemical-combustion-chamber"){{
             requirements(Category.power, with(Items.graphite, 40, Items.tungsten, 40, Items.oxide, 40f, Items.silicon, 30));
             powerProduction = 9f;
-            consumes.liquids(LiquidStack.with(Liquids.ozone, 1f / 60f, Liquids.arkycite, 20f / 60f));
+            consumes.liquids(LiquidStack.with(Liquids.ozone, 2f / 60f, Liquids.arkycite, 20f / 60f));
             size = 3;
             drawer = new DrawMulti(new DrawRegion("-bottom"), new DrawPistons(){{
                 sinMag = 3f;
@@ -3381,11 +3381,11 @@ public class Blocks{
             outlineColor = Pal.darkOutline;
             acceptCoolant = false;
 
-            scaledHealth = 340;
+            scaledHealth = 420;
             range = 270f;
             size = 4;
 
-            limitRange(0f);
+            limitRange(-5f);
         }};
 
         //endregion
@@ -3546,7 +3546,7 @@ public class Blocks{
             consumes.power(3f);
             areaSize = 13;
 
-            consumes.liquid(Liquids.nitrogen, 12f / 60f);
+            consumes.liquid(Liquids.nitrogen, 24f / 60f);
         }};
 
         //TODO requirements
@@ -3557,7 +3557,7 @@ public class Blocks{
             consumes.power(3f);
             areaSize = 13;
 
-            consumes.liquid(Liquids.nitrogen, 12f / 60f);
+            consumes.liquid(Liquids.nitrogen, 24f / 60f);
         }};
 
         //TODO requirements
@@ -3568,7 +3568,7 @@ public class Blocks{
             consumes.power(3f);
             areaSize = 13;
 
-            consumes.liquid(Liquids.nitrogen, 12f / 60f);
+            consumes.liquid(Liquids.nitrogen, 24f / 60f);
         }};
 
         //TODO requirements
diff --git a/core/src/mindustry/content/UnitTypes.java b/core/src/mindustry/content/UnitTypes.java
index 8b0b1f8103..f8d8effa58 100644
--- a/core/src/mindustry/content/UnitTypes.java
+++ b/core/src/mindustry/content/UnitTypes.java
@@ -2934,8 +2934,8 @@ public class UnitTypes{
 
                 unitSpawned = new MissileUnitType("quell-missile"){{
                     speed = 3.8f;
-                    maxRange = 80f;
-                    lifetime = 60f * 1.4f;
+                    maxRange = 15f;
+                    lifetime = 60f * 1.2f;
                     outlineColor = Pal.darkOutline;
                     health = 45;
 
@@ -2944,7 +2944,7 @@ public class UnitTypes{
                         mirror = false;
                         reload = 1f;
                         shootOnDeath = true;
-                        bullet = new ExplosionBulletType(130f, 22f){{
+                        bullet = new ExplosionBulletType(100f, 22f){{
                             shootEffect = Fx.massiveExplosion;
                         }};
                     }});
@@ -3362,6 +3362,7 @@ public class UnitTypes{
             engineSize = 2f;
             engineOffset = 6.5f;
             payloadCapacity = 0f;
+            targetable = false;
 
             outlineColor = Pal.darkOutline;
             isCounted = false;
diff --git a/core/src/mindustry/game/Rules.java b/core/src/mindustry/game/Rules.java
index e8e9b6dcd1..960757da3c 100644
--- a/core/src/mindustry/game/Rules.java
+++ b/core/src/mindustry/game/Rules.java
@@ -36,7 +36,7 @@ public class Rules{
     /** Whether this is the editor gamemode. */
     public boolean editor = false;
     /** Whether a gameover can happen at all. Set this to false to implement custom gameover conditions. */
-    public boolean canGameOver = false;
+    public boolean canGameOver = true;
     /** Whether cores change teams when they are destroyed. */
     public boolean coreCapture = false;
     /** Whether reactors can explode and damage other blocks. */
diff --git a/core/src/mindustry/type/unit/MissileUnitType.java b/core/src/mindustry/type/unit/MissileUnitType.java
index a9113552d4..393b0960d6 100644
--- a/core/src/mindustry/type/unit/MissileUnitType.java
+++ b/core/src/mindustry/type/unit/MissileUnitType.java
@@ -30,7 +30,7 @@ public class MissileUnitType extends UnitType{
         speed = 4f;
         lifetime = 60f * 1.7f;
         rotateSpeed = 2.5f;
-        range = 30f;
+        range = 15f;
         targetPriority = -1f;
         outlineColor = Pal.darkOutline;
         //TODO weapon configs, etc?
diff --git a/core/src/mindustry/world/blocks/units/UnitAssembler.java b/core/src/mindustry/world/blocks/units/UnitAssembler.java
index 57f70f3c6d..75a9657e77 100644
--- a/core/src/mindustry/world/blocks/units/UnitAssembler.java
+++ b/core/src/mindustry/world/blocks/units/UnitAssembler.java
@@ -497,7 +497,7 @@ public class UnitAssembler extends PayloadBlock{
             var output = unit();
             float hsize = output.hitSize * 1.4f;
             return ((!output.flying && collisions.overlapsTile(Tmp.r1.setCentered(v.x, v.y, output.hitSize), EntityCollisions::solid)) ||
-                Units.anyEntities(v.x - hsize/2f, v.y - hsize/2f, hsize, hsize, u -> (!same || u.type != output) &&
+                Units.anyEntities(v.x - hsize/2f, v.y - hsize/2f, hsize, hsize, u -> (!same || u.type != output) && !u.spawnedByCore &&
                     ((u.type.allowLegStep && output.allowLegStep) || (output.flying && u.isFlying()) || (!output.flying && u.isGrounded()))));
         }