diff --git a/core/assets-raw/sprites/blocks/distribution/ducts/overflow-duct-top.png b/core/assets-raw/sprites/blocks/distribution/ducts/overflow-duct-top.png
new file mode 100644
index 0000000000..7a6637d7a9
Binary files /dev/null and b/core/assets-raw/sprites/blocks/distribution/ducts/overflow-duct-top.png differ
diff --git a/core/assets-raw/sprites/blocks/distribution/ducts/overflow-duct.png b/core/assets-raw/sprites/blocks/distribution/ducts/overflow-duct.png
new file mode 100644
index 0000000000..8bbb599c9a
Binary files /dev/null and b/core/assets-raw/sprites/blocks/distribution/ducts/overflow-duct.png differ
diff --git a/core/assets-raw/sprites/units/emanate.png b/core/assets-raw/sprites/units/emanate.png
index 95fa1a83d8..f297430956 100644
Binary files a/core/assets-raw/sprites/units/emanate.png and b/core/assets-raw/sprites/units/emanate.png differ
diff --git a/core/assets/icons/icons.properties b/core/assets/icons/icons.properties
index 0f7352074c..660fea210b 100755
--- a/core/assets/icons/icons.properties
+++ b/core/assets/icons/icons.properties
@@ -447,3 +447,5 @@
 63259=oxidation-chamber|block-oxidation-chamber-ui
 63258=surge-crucible|block-surge-crucible-ui
 63257=emanate|unit-emanate-ui
+63256=overflow-duct|block-overflow-duct-ui
+63255=large-plasma-bore|block-large-plasma-bore-ui
diff --git a/core/assets/logicids.dat b/core/assets/logicids.dat
index e06c76e3d9..54817c3f97 100644
Binary files a/core/assets/logicids.dat and b/core/assets/logicids.dat differ
diff --git a/core/src/mindustry/content/Blocks.java b/core/src/mindustry/content/Blocks.java
index a271ef0b55..3e8c4a8f96 100644
--- a/core/src/mindustry/content/Blocks.java
+++ b/core/src/mindustry/content/Blocks.java
@@ -77,7 +77,7 @@ public class Blocks implements ContentList{
     overflowGate, underflowGate, massDriver,
 
     //transport - alternate
-    duct, ductRouter, ductBridge, ductUnloader,
+    duct, ductRouter, overflowDuct, ductBridge, ductUnloader,
     surgeConveyor, surgeRouter,
 
     //liquid
@@ -94,7 +94,7 @@ public class Blocks implements ContentList{
 
     //production
     mechanicalDrill, pneumaticDrill, laserDrill, blastDrill, waterExtractor, oilExtractor, cultivator,
-    cliffCrusher, plasmaBore, impactDrill,
+    cliffCrusher, plasmaBore, largePlasmaBore, impactDrill,
 
     //storage
     coreShard, coreFoundation, coreNucleus, vault, container, unloader,
@@ -1430,6 +1430,11 @@ public class Blocks implements ContentList{
             speed = 4f;
         }};
 
+        overflowDuct = new OverflowDuct("overflow-duct"){{
+            requirements(Category.distribution, with(Items.graphite, 10));
+            speed = 4f;
+        }};
+
         ductBridge = new DuctBridge("duct-bridge"){{
             requirements(Category.distribution, with(Items.graphite, 20));
             speed = 4f;
@@ -1908,13 +1913,27 @@ public class Blocks implements ContentList{
         }};
 
         plasmaBore = new BeamDrill("plasma-bore"){{
-            requirements(Category.production, with(Items.graphite, 20, Items.beryllium, 10, Items.lead, 20));
+            requirements(Category.production, with(Items.graphite, 20, Items.beryllium, 10));
             consumes.power(0.2f);
+            drillTime = 200f;
             tier = 4;
             size = 2;
             range = 2;
         }};
 
+        //TODO awful name
+        largePlasmaBore = new BeamDrill("large-plasma-bore"){{
+            //TODO requirements
+            //TODO require hydrogen? optional for all drills?
+            requirements(Category.production, with(Items.graphite, 30, Items.beryllium, 20, Items.carbide, 30));
+            consumes.power(0.6f);
+            drillTime = 170f;
+            tier = 5;
+            size = 3;
+            range = 6;
+            laserWidth = 0.7f;
+        }};
+
         //endregion
         //region storage
 
diff --git a/core/src/mindustry/entities/comp/BlockUnitComp.java b/core/src/mindustry/entities/comp/BlockUnitComp.java
index 39adf5c891..a01be90c4f 100644
--- a/core/src/mindustry/entities/comp/BlockUnitComp.java
+++ b/core/src/mindustry/entities/comp/BlockUnitComp.java
@@ -23,6 +23,13 @@ abstract class BlockUnitComp implements Unitc{
         set(tile);
     }
 
+    @Override
+    public void add(){
+        if(tile == null){
+            throw new RuntimeException("Do not add BlockUnit entities to the game, they will simply crash. Internal use only.");
+        }
+    }
+
     @Override
     public void update(){
         if(tile != null){
diff --git a/core/src/mindustry/world/blocks/distribution/DuctRouter.java b/core/src/mindustry/world/blocks/distribution/DuctRouter.java
index b04f75afbe..0e2b7be04f 100644
--- a/core/src/mindustry/world/blocks/distribution/DuctRouter.java
+++ b/core/src/mindustry/world/blocks/distribution/DuctRouter.java
@@ -27,7 +27,6 @@ public class DuctRouter extends Block{
         update = true;
         solid = false;
         hasItems = true;
-        conveyorPlacement = true;
         unloadable = false;
         itemCapacity = 1;
         noUpdateDisabled = true;
@@ -58,6 +57,11 @@ public class DuctRouter extends Block{
         Draw.rect(topRegion, plan.drawx(), plan.drawy(), plan.rotation * 90);
     }
 
+    @Override
+    public boolean rotatedOutput(int x, int y){
+        return false;
+    }
+
     public class DuctRouterBuild extends Building{
         public @Nullable Item sortItem;
 
diff --git a/core/src/mindustry/world/blocks/distribution/OverflowDuct.java b/core/src/mindustry/world/blocks/distribution/OverflowDuct.java
new file mode 100644
index 0000000000..b59dc5c7b9
--- /dev/null
+++ b/core/src/mindustry/world/blocks/distribution/OverflowDuct.java
@@ -0,0 +1,137 @@
+package mindustry.world.blocks.distribution;
+
+import arc.graphics.g2d.*;
+import arc.math.*;
+import arc.util.*;
+import mindustry.annotations.Annotations.*;
+import mindustry.entities.units.*;
+import mindustry.gen.*;
+import mindustry.type.*;
+import mindustry.world.*;
+import mindustry.world.meta.*;
+
+public class OverflowDuct extends Block{
+    public float speed = 5f;
+
+    public @Load(value = "@-top") TextureRegion topRegion;
+
+    public OverflowDuct(String name){
+        super(name);
+
+        group = BlockGroup.transportation;
+        update = true;
+        solid = false;
+        hasItems = true;
+        conveyorPlacement = true;
+        unloadable = false;
+        itemCapacity = 1;
+        noUpdateDisabled = true;
+        rotate = true;
+        envEnabled = Env.space | Env.terrestrial | Env.underwater;
+    }
+
+    @Override
+    public void setStats(){
+        super.setStats();
+
+        stats.add(Stat.itemsMoved, 60f / speed, StatUnit.itemsSecond);
+    }
+
+    @Override
+    public TextureRegion[] icons(){
+        return new TextureRegion[]{region, topRegion};
+    }
+
+    @Override
+    public void drawRequestRegion(BuildPlan plan, Eachable<BuildPlan> list){
+        Draw.rect(region, plan.drawx(), plan.drawy());
+        Draw.rect(topRegion, plan.drawx(), plan.drawy(), plan.rotation * 90);
+    }
+
+    @Override
+    public boolean rotatedOutput(int x, int y){
+        return false;
+    }
+
+    public class DuctRouterBuild extends Building{
+        public float progress;
+        public @Nullable Item current;
+
+        @Override
+        public void draw(){
+            Draw.rect(region, x, y);
+            Draw.rect(topRegion, x, y, rotdeg());
+        }
+
+        @Override
+        public void updateTile(){
+            progress += edelta() / speed * 2f;
+
+            if(current != null){
+                if(progress >= (1f - 1f/speed)){
+                    var target = target();
+                    if(target != null){
+                        target.handleItem(this, current);
+                        cdump = (byte)(cdump == 0 ? 2 : 0);
+                        items.remove(current, 1);
+                        current = null;
+                        progress %= (1f - 1f/speed);
+                    }
+                }
+            }else{
+                progress = 0;
+            }
+
+            if(current == null && items.total() > 0){
+                current = items.first();
+            }
+        }
+
+        @Nullable
+        public Building target(){
+            if(current == null) return null;
+
+            Building front = front();
+            if(front != null && front.team == team && front.acceptItem(this, current)){
+                return front;
+            }
+
+            for(int i = -1; i <= 1; i++){
+                int dir = Mathf.mod(rotation + (((i + cdump + 1) % 3) - 1), 4);
+                if(dir == rotation) continue;
+                Building other = nearby(dir);
+                if(other != null && other.team == team && other.acceptItem(this, current)){
+                    return other;
+                }
+            }
+            return null;
+        }
+
+        @Override
+        public boolean acceptItem(Building source, Item item){
+            return current == null && items.total() == 0 &&
+                (Edges.getFacingEdge(source.tile(), tile).relativeTo(tile) == rotation);
+        }
+
+        @Override
+        public int removeStack(Item item, int amount){
+            int removed = super.removeStack(item, amount);
+            if(item == current) current = null;
+            return removed;
+        }
+
+        @Override
+        public void handleStack(Item item, int amount, Teamc source){
+            super.handleStack(item, amount, source);
+            current = item;
+        }
+
+        @Override
+        public void handleItem(Building source, Item item){
+            current = item;
+            progress = -1f;
+            items.add(item, 1);
+            noSleep();
+        }
+    }
+}
diff --git a/gradle.properties b/gradle.properties
index 47efdec8d7..8c9c4e6695 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -24,4 +24,4 @@ android.useAndroidX=true
 #used for slow jitpack builds; TODO see if this actually works
 org.gradle.internal.http.socketTimeout=100000
 org.gradle.internal.http.connectionTimeout=100000
-archash=430f9146f3c9c34db1f9ad9a8784e71c322246f2
+archash=5952043ab3a6de8f254dd038ea7ac4cab1b8a852