After some prototyping I have what I think I want for the map. Just a simple piece of paper you take out that has the ASCII map on it.

assets/config.json

@@ -53,7 +53,8 @@
     "tunnel_with_rocks": "assets/tunnel_with_rocks.png",
     "tunnel_with_rocks_stage": "assets/tunnel_with_rocks_stage.png",
     "ritual_crafting_area": "assets/ritual_crafting_area.png",
-    "the_ritual_circle": "assets/the_ritual_circle.png"
+    "the_ritual_circle": "assets/the_ritual_circle.png",
+    "paper_ui_background": "assets/paper_ui_background.png"
   },
   "worldgen": {
     "enemy_probability": 50,

assets/tiles.json

@@ -4,20 +4,20 @@
     "foreground": [40, 15, 125],
     "background": [200, 15, 75],
     "collision": false,
-    "display":"\u289e"
+    "display":"."
   },
   "WALL_PLAIN": {
     "texture": "assets/wall_texture_test-256.png",
     "foreground": [230, 20, 30],
     "background": [230, 20, 120],
     "collision": true,
-    "display": "\ua5b8"
+    "display": "#"
   },
   "WALL_VINES": {
     "texture": "assets/wall_with_vines-256.png",
     "foreground": [230, 20, 30],
     "background": [230, 20, 120],
     "collision": false,
-    "display":"\u0799"
+    "display":"|"
   }
 }