diff --git a/assets/images/vaults/house1.png b/assets/images/vaults/house1.png
index 76be062..3da7030 100644
Binary files a/assets/images/vaults/house1.png and b/assets/images/vaults/house1.png differ
diff --git a/assets/images/vaults/warehouse_1x1.png b/assets/images/vaults/warehouse_1x1.png
index 5967d2f..62bb824 100644
Binary files a/assets/images/vaults/warehouse_1x1.png and b/assets/images/vaults/warehouse_1x1.png differ
diff --git a/lib/game.dart b/lib/game.dart
index f74790e..892b789 100644
--- a/lib/game.dart
+++ b/lib/game.dart
@@ -31,8 +31,17 @@ void main() async {
 
   while (true) {
     clear();
-    Vault output = Generator(math.Random(seed), vaults)
-        .generate(Requirement(16, 32, 16, 24, DirectionSet({})));
+    Vault output = Generator(math.Random(seed), vaults).generate(Requirement(
+        16,
+        32,
+        16,
+        24,
+        DirectionSet({
+          Direction.up,
+          Direction.down,
+          Direction.left,
+          Direction.right,
+        })));
     var geo.Size(dx: w, dy: h) = output.size;
     for (var y = 0; y < h; y++) {
       for (var x = 0; x < w; x++) {