diff --git a/core/assets/version.properties b/core/assets/version.properties
index e369f5a76b..95ceb34662 100644
--- a/core/assets/version.properties
+++ b/core/assets/version.properties
@@ -1,7 +1,7 @@
 #Autogenerated file. Do not modify.
-#Sat Apr 14 21:02:06 EDT 2018
+#Sat Apr 14 21:49:43 EDT 2018
 version=release
-androidBuildCode=922
+androidBuildCode=923
 name=Mindustry
 code=3.5
 build=custom build
diff --git a/core/src/io/anuke/mindustry/content/blocks/Blocks.java b/core/src/io/anuke/mindustry/content/blocks/Blocks.java
index c58d7f879c..6ce3406b3f 100644
--- a/core/src/io/anuke/mindustry/content/blocks/Blocks.java
+++ b/core/src/io/anuke/mindustry/content/blocks/Blocks.java
@@ -37,6 +37,7 @@ public class Blocks {
     }},
 
     deepwater = new Floor("deepwater") {{
+        placeableOn = false;
         liquidColor = Color.valueOf("546bb3");
         speedMultiplier = 0.2f;
         variants = 0;
diff --git a/core/src/io/anuke/mindustry/entities/Player.java b/core/src/io/anuke/mindustry/entities/Player.java
index 50460f2ef1..c8c13070ee 100644
--- a/core/src/io/anuke/mindustry/entities/Player.java
+++ b/core/src/io/anuke/mindustry/entities/Player.java
@@ -236,7 +236,11 @@ public class Player extends Unit{
 
 		dashing = Inputs.keyDown("dash");
 
-		float speed = dashing ? (debug ? Player.dashSpeed * 5f : Player.dashSpeed) : Player.speed;
+		float speed = dashing ? (debug ? Player.dashSpeed * 5f : Player.dashSpeed) : Player.speed ;
+
+		float carrySlowdown = 0.3f;
+
+		speed *= ((1f-carrySlowdown) +  (inventory.hasItem() ? (float)inventory.getItem().amount/inventory.capacity(): 1f) * carrySlowdown);
 
 		if(health < maxhealth && timer.get(timerRegen, 20))
 			health ++;
diff --git a/core/src/io/anuke/mindustry/world/Block.java b/core/src/io/anuke/mindustry/world/Block.java
index 282ff144f6..f05666eb35 100644
--- a/core/src/io/anuke/mindustry/world/Block.java
+++ b/core/src/io/anuke/mindustry/world/Block.java
@@ -60,6 +60,8 @@ public class Block extends BaseBlock {
 	public boolean breakable;
 	/**whether this block can be drowned in*/
 	public boolean liquid;
+	/**whether this floor can be placed on.*/
+	public boolean placeableOn = true;
 	/**time it takes to break*/
 	public float breaktime = 18;
 	/**tile entity health*/
diff --git a/core/src/io/anuke/mindustry/world/Placement.java b/core/src/io/anuke/mindustry/world/Placement.java
index 7db7438ba4..a6b2c800a3 100644
--- a/core/src/io/anuke/mindustry/world/Placement.java
+++ b/core/src/io/anuke/mindustry/world/Placement.java
@@ -132,14 +132,14 @@ public class Placement {
             for(int dx = 0; dx < type.size; dx ++){
                 for(int dy = 0; dy < type.size; dy ++){
                     Tile other = world.tile(x + dx + offsetx, y + dy + offsety);
-                    if(other == null || (other.block() != Blocks.air && !other.block().alwaysReplace) || isSpawnPoint(other)){
+                    if(other == null || (other.block() != Blocks.air && !other.block().alwaysReplace) || isSpawnPoint(other) || !other.floor().placeableOn){
                         return false;
                     }
                 }
             }
             return true;
         }else {
-            return (tile.getTeam() == Team.none || tile.getTeam() == team)
+            return (tile.getTeam() == Team.none || tile.getTeam() == team) && tile.floor().placeableOn
                     && ((type.canReplace(tile.block()) && !(type == tile.block() && rotation == tile.getRotation() && type.rotate)) || tile.block().alwaysReplace)
                     && tile.block().isMultiblock() == type.isMultiblock() || tile.block() == Blocks.air;
         }