diff --git a/src/main/java/ru/windcorp/progressia/server/world/context/impl/DefaultServerContextImpl.java b/src/main/java/ru/windcorp/progressia/server/world/context/impl/DefaultServerContextImpl.java
index 7d4f6cf..b4dfedc 100644
--- a/src/main/java/ru/windcorp/progressia/server/world/context/impl/DefaultServerContextImpl.java
+++ b/src/main/java/ru/windcorp/progressia/server/world/context/impl/DefaultServerContextImpl.java
@@ -364,19 +364,19 @@ class DefaultServerContextImpl extends DefaultServerContext
 	@Override
 	public TileData getTile(Vec3i location, RelFace face, int layer) {
 		assert requireContextRole(Role.WORLD);
-		return world.getTile(location, face, layer);
+		return world.getTile(location, face.resolve(AbsFace.POS_Z), layer);
 	}
 
 	@Override
 	public boolean hasTile(Vec3i location, RelFace face, int layer) {
 		assert requireContextRole(Role.WORLD);
-		return world.hasTile(location, face, layer);
+		return world.hasTile(location, face.resolve(AbsFace.POS_Z), layer);
 	}
 
 	@Override
 	public TileData getTileByTag(Vec3i location, RelFace face, int tag) {
 		assert requireContextRole(Role.WORLD);
-		TileDataStack stack = world.getTilesOrNull(location, face);
+		TileDataStack stack = world.getTilesOrNull(location, face.resolve(AbsFace.POS_Z));
 		if (stack == null)
 			return null;
 		int layer = stack.getIndexByTag(tag);
@@ -388,7 +388,7 @@ class DefaultServerContextImpl extends DefaultServerContext
 	@Override
 	public boolean isTagValid(Vec3i location, RelFace face, int tag) {
 		assert requireContextRole(Role.WORLD);
-		TileDataStack stack = world.getTilesOrNull(location, face);
+		TileDataStack stack = world.getTilesOrNull(location, face.resolve(AbsFace.POS_Z));
 		if (stack == null)
 			return false;
 		return stack.getIndexByTag(tag) != -1;
@@ -397,7 +397,7 @@ class DefaultServerContextImpl extends DefaultServerContext
 	@Override
 	public int getTag() {
 		assert requireContextRole(Role.TILE);
-		TileDataStack stack = world.getTilesOrNull(frame.location, frame.face);
+		TileDataStack stack = world.getTilesOrNull(frame.location, frame.face.resolve(AbsFace.POS_Z));
 		if (stack == null)
 			return -1;
 		return stack.getTagByIndex(frame.layer);
@@ -406,7 +406,7 @@ class DefaultServerContextImpl extends DefaultServerContext
 	@Override
 	public int getTileCount(Vec3i location, RelFace face) {
 		assert requireContextRole(Role.TILE_STACK);
-		TileDataStack stack = world.getTilesOrNull(frame.location, frame.face);
+		TileDataStack stack = world.getTilesOrNull(location, face.resolve(AbsFace.POS_Z));
 		if (stack == null)
 			return 0;
 		return stack.size();
@@ -455,13 +455,13 @@ class DefaultServerContextImpl extends DefaultServerContext
 	@Override
 	public void addTile(Vec3i location, RelFace face, TileData tile) {
 		assert requireContextRole(Role.WORLD);
-		world.getTiles(location, face).addFarthest(tile);
+		world.getTiles(location, face.resolve(AbsFace.POS_Z)).addFarthest(tile);
 	}
 
 	@Override
 	public void removeTile(Vec3i location, RelFace face, int tag) {
 		assert requireContextRole(Role.WORLD);
-		TileDataStack stack = world.getTilesOrNull(location, face);
+		TileDataStack stack = world.getTilesOrNull(location, face.resolve(AbsFace.POS_Z));
 		if (stack == null)
 			return;
 		int layer = stack.getIndexByTag(tag);
diff --git a/src/main/java/ru/windcorp/progressia/server/world/context/impl/ReportingServerContext.java b/src/main/java/ru/windcorp/progressia/server/world/context/impl/ReportingServerContext.java
index 732b2a0..57ff66c 100644
--- a/src/main/java/ru/windcorp/progressia/server/world/context/impl/ReportingServerContext.java
+++ b/src/main/java/ru/windcorp/progressia/server/world/context/impl/ReportingServerContext.java
@@ -23,7 +23,6 @@ import ru.windcorp.progressia.common.state.StatefulObject;
 import ru.windcorp.progressia.common.world.block.BlockData;
 import ru.windcorp.progressia.common.world.entity.EntityData;
 import ru.windcorp.progressia.common.world.generic.EntityGeneric;
-import ru.windcorp.progressia.common.world.rels.BlockFace;
 import ru.windcorp.progressia.common.world.rels.RelFace;
 import ru.windcorp.progressia.common.world.tile.TileData;
 import ru.windcorp.progressia.server.world.context.ServerTileContext;
@@ -34,9 +33,9 @@ public class ReportingServerContext extends FilterServerContext {
 
 		void onBlockSet(Vec3i location, BlockData block);
 
-		void onTileAdded(Vec3i location, BlockFace face, TileData tile);
+		void onTileAdded(Vec3i location, RelFace face, TileData tile);
 
-		void onTileRemoved(Vec3i location, BlockFace face, int tag);
+		void onTileRemoved(Vec3i location, RelFace face, int tag);
 
 		void onEntityAdded(EntityData entity);
 
diff --git a/src/main/java/ru/windcorp/progressia/server/world/tasks/WorldAccessor.java b/src/main/java/ru/windcorp/progressia/server/world/tasks/WorldAccessor.java
index cb95063..76ab835 100644
--- a/src/main/java/ru/windcorp/progressia/server/world/tasks/WorldAccessor.java
+++ b/src/main/java/ru/windcorp/progressia/server/world/tasks/WorldAccessor.java
@@ -27,7 +27,9 @@ import ru.windcorp.progressia.common.util.MultiLOC;
 import ru.windcorp.progressia.common.world.block.BlockData;
 import ru.windcorp.progressia.common.world.entity.EntityData;
 import ru.windcorp.progressia.common.world.generic.EntityGeneric;
+import ru.windcorp.progressia.common.world.rels.AbsFace;
 import ru.windcorp.progressia.common.world.rels.BlockFace;
+import ru.windcorp.progressia.common.world.rels.RelFace;
 import ru.windcorp.progressia.common.world.tile.TileData;
 import ru.windcorp.progressia.server.Server;
 import ru.windcorp.progressia.server.world.context.impl.ReportingServerContext;
@@ -64,16 +66,16 @@ public class WorldAccessor implements ReportingServerContext.ChangeListener {
 	}
 
 	@Override
-	public void onTileAdded(Vec3i blockInWorld, BlockFace face, TileData tile) {
+	public void onTileAdded(Vec3i blockInWorld, RelFace face, TileData tile) {
 		AddTile change = cache.grab(AddTile.class);
-		change.getPacket().set(tile, blockInWorld, face.resolve(server.getWorld().getUp(blockInWorld)));
+		change.getPacket().set(tile, blockInWorld, face.resolve(AbsFace.POS_Z));
 		server.requestChange(change);
 	}
 
 	@Override
-	public void onTileRemoved(Vec3i blockInWorld, BlockFace face, int tag) {
+	public void onTileRemoved(Vec3i blockInWorld, RelFace face, int tag) {
 		RemoveTile change = cache.grab(RemoveTile.class);
-		change.getPacket().set(blockInWorld, face.resolve(server.getWorld().getUp(blockInWorld)), tag);
+		change.getPacket().set(blockInWorld, face.resolve(AbsFace.POS_Z), tag);
 		server.requestChange(change);
 	}
 	
@@ -131,7 +133,7 @@ public class WorldAccessor implements ReportingServerContext.ChangeListener {
 	// TODO rename to something meaningful
 	public void triggerUpdates(Vec3i blockInWorld, BlockFace face) {
 		TileTriggeredUpdate evaluation = cache.grab(TileTriggeredUpdate.class);
-		evaluation.init(blockInWorld, face.resolve(server.getWorld().getUp(blockInWorld)));
+		evaluation.init(blockInWorld, face.resolve(AbsFace.POS_Z));
 		server.requestEvaluation(evaluation);
 	}