Enter a demo mode, generating lots of levels

lib/game.dart

@@ -26,8 +26,11 @@ void main() async {
   at(0, 0).clear();
   at(0, 0).puts("Loaded! $vaults");
 
+  int seed = 0;
+
+  while (true) {
     Vault output = vaults.generateBoxed(
-      math.Random(2),
+        math.Random(seed),
         Requirement(
             16,
             16,
@@ -54,6 +57,9 @@ void main() async {
         }
       }
     }
+    seed += 1;
+    await zzz(0.1);
+  }
 }
 /*
 void main() async {