diff --git a/core/assets-raw/sprites/blocks/production/biomatterextractor.png b/core/assets-raw/sprites/blocks/production/cultivator.png
similarity index 100%
rename from core/assets-raw/sprites/blocks/production/biomatterextractor.png
rename to core/assets-raw/sprites/blocks/production/cultivator.png
diff --git a/core/assets/version.properties b/core/assets/version.properties
index 7cdda7c7dc..b6758cacc7 100644
--- a/core/assets/version.properties
+++ b/core/assets/version.properties
@@ -1,7 +1,7 @@
 #Autogenerated file. Do not modify.
-#Thu Mar 08 21:56:36 EST 2018
+#Thu Mar 08 23:00:40 EST 2018
 version=release
-androidBuildCode=409
+androidBuildCode=412
 name=Mindustry
 code=3.4
 build=custom build
diff --git a/core/src/io/anuke/mindustry/core/NetServer.java b/core/src/io/anuke/mindustry/core/NetServer.java
index ee61924be6..bca30b9f46 100644
--- a/core/src/io/anuke/mindustry/core/NetServer.java
+++ b/core/src/io/anuke/mindustry/core/NetServer.java
@@ -1,9 +1,6 @@
 package io.anuke.mindustry.core;
 
-import com.badlogic.gdx.utils.ByteArray;
-import com.badlogic.gdx.utils.IntMap;
-import com.badlogic.gdx.utils.ObjectMap;
-import com.badlogic.gdx.utils.TimeUtils;
+import com.badlogic.gdx.utils.*;
 import io.anuke.mindustry.core.GameState.State;
 import io.anuke.mindustry.entities.Player;
 import io.anuke.mindustry.entities.SyncEntity;
diff --git a/core/src/io/anuke/mindustry/resource/Recipes.java b/core/src/io/anuke/mindustry/resource/Recipes.java
index c98890df98..1b0ca6819b 100644
--- a/core/src/io/anuke/mindustry/resource/Recipes.java
+++ b/core/src/io/anuke/mindustry/resource/Recipes.java
@@ -65,7 +65,7 @@ public class Recipes {
 			new Recipe(production, ProductionBlocks.titaniumdrill, stack(Item.iron, 50), stack(Item.steel, 50)),
 			new Recipe(production, ProductionBlocks.uraniumdrill, stack(Item.iron, 40), stack(Item.steel, 40)),
 			new Recipe(production, ProductionBlocks.quartzextractor, stack(Item.titanium, 40), stack(Item.dirium, 40)),
-			new Recipe(production, ProductionBlocks.biomatterextractor, stack(Item.titanium, 40), stack(Item.dirium, 40)),
+			new Recipe(production, ProductionBlocks.cultivator, stack(Item.titanium, 40), stack(Item.dirium, 40)),
 			new Recipe(production, ProductionBlocks.laserdrill, stack(Item.titanium, 40), stack(Item.dirium, 40)),
 
 			new Recipe(power, ProductionBlocks.coalgenerator, stack(Item.iron, 30), stack(Item.stone, 20)),
diff --git a/core/src/io/anuke/mindustry/world/blocks/ProductionBlocks.java b/core/src/io/anuke/mindustry/world/blocks/ProductionBlocks.java
index 2611b62a42..caf6f79dac 100644
--- a/core/src/io/anuke/mindustry/world/blocks/ProductionBlocks.java
+++ b/core/src/io/anuke/mindustry/world/blocks/ProductionBlocks.java
@@ -216,10 +216,12 @@ public class ProductionBlocks{
 		}
 	},
 
-	biomatterextractor = new Drill("biomatterextractor"){
+	cultivator = new LiquidDrill("cultivator"){
 		{
 			resource = Blocks.grass;
 			result = Item.biomatter;
+			inputLiquid = Liquid.water;
+			inputLiquidAmount = 0.1f;
 			time = 5;
 			size = 2;
 		}
diff --git a/core/src/io/anuke/mindustry/world/blocks/types/distribution/Teleporter.java b/core/src/io/anuke/mindustry/world/blocks/types/distribution/Teleporter.java
index a24d115058..86cf77e401 100644
--- a/core/src/io/anuke/mindustry/world/blocks/types/distribution/Teleporter.java
+++ b/core/src/io/anuke/mindustry/world/blocks/types/distribution/Teleporter.java
@@ -56,7 +56,7 @@ public class Teleporter extends PowerBlock{
 		TeleporterEntity entity = tile.entity();
 		if(entity != null){
 			entity.color = data;
-			Arrays.fill(entity.items, 0);
+			Arrays.fill(entity.inventory.items, 0);
 		}
 	}
 
diff --git a/core/src/io/anuke/mindustry/world/blocks/types/production/LiquidDrill.java b/core/src/io/anuke/mindustry/world/blocks/types/production/LiquidDrill.java
new file mode 100644
index 0000000000..e1ac1cfc2b
--- /dev/null
+++ b/core/src/io/anuke/mindustry/world/blocks/types/production/LiquidDrill.java
@@ -0,0 +1,32 @@
+package io.anuke.mindustry.world.blocks.types.production;
+
+import io.anuke.mindustry.resource.Liquid;
+import io.anuke.mindustry.world.Tile;
+import io.anuke.ucore.core.Timers;
+
+/**A drill that uses liquid as fuel.*/
+public class LiquidDrill extends Drill {
+    protected Liquid inputLiquid = Liquid.water;
+    protected float inputLiquidAmount = 0.1f; //per frame
+
+    public LiquidDrill(String name){
+        super(name);
+
+        hasLiquids = true;
+    }
+
+    @Override
+    public void update(Tile tile){
+        float consume = Math.min(liquidCapacity, inputLiquidAmount * Timers.delta());
+
+        if(tile.entity.liquid.amount >= consume){
+            tile.entity.liquid.amount -= consume;
+            super.update(tile);
+        }
+    }
+
+    @Override
+    public boolean acceptLiquid(Tile tile, Tile source, Liquid liquid, float amount) {
+        return super.acceptLiquid(tile, source, liquid, amount) && liquid == inputLiquid;
+    }
+}