Now have all four screens showing up when needed, but now need to a way to restart the game.

assets/devices.json

@@ -17,6 +17,24 @@
       {"_type": "Sprite", "name": "ladder_down", "width": 256, "height": 256, "scale": 1.0}
     ]
   },
+  "OPEN_VENT": {
+    "id": "OPEN_VENT",
+    "name": "Open Vent",
+    "placement": "fixed",
+    "description": "Your Goal.",
+    "inventory_count": 0,
+    "randomized": false,
+    "components": [
+      {"_type": "Tile", "display": 6106,
+        "foreground": "devices/fg:stairs_down",
+        "background": "devices/bg:stairs_down"
+      },
+      {"_type": "Device",
+        "config": {},
+        "events": ["STAIRS_DOWN"]},
+      {"_type": "Sprite", "name": "open_vent", "width": 256, "height": 256, "scale": 1.0}
+    ]
+  },
   "DEAD_BODY_LOOTABLE": {
     "id": "DEAD_BODY_LOOTABLE",
     "name": "Grave Stone",