{
  "map_id": "demo_world",
  "width": 10,
  "height": 10,
  "depth": 1,
  "default_tile": { "subfloor": "dirt", "flooring": "grass" },
  "tiles": [],
  "embeddings": [
    { "map_file": "ship_small.json", "anchor": [6, 6, 0] }
  ]
}