[
  {
    "type": "overmap_terrain",
    "id": [ "nether_glass", "nether_glass_deep", "nether_glass_impassable" ],
    "name": "abyss",
    "sym": " ",
    "color": "black",
    "see_cost": 10,
    "flags": [ "RISK_HIGH" ]
  },
  {
    "type": "overmap_terrain",
    "id": [ "void_spider_lair_entrance", "void_spider_lair_a1", "void_spider_lair_a2" ],
    "name": "abyss",
    "sym": " ",
    "color": "black",
    "see_cost": 10,
    "flags": [ "RISK_HIGH" ]
  }
]
