The Frontier

{
  "bounds": "Unbounded",
  "id": "core:frontier",
  "name": "The Frontier",
  "origin_bias_chunks": 1024,
  "vertical_extent": {
    "ceiling": 4,
    "floor": -6
  },
  "z_bands": [
    {
      "biome": "core:deep_rock_band",
      "kind": "Seal",
      "secret": false,
      "subsurface": null,
      "z_range": [
        -1,
        -1
      ]
    },
    {
      "biome": "core:deep_rock_band",
      "kind": "Seal",
      "secret": false,
      "subsurface": "core:deep_water",
      "z_range": [
        -2,
        -2
      ]
    },
    {
      "biome": "core:hell_seal_band",
      "kind": "Seal",
      "secret": false,
      "subsurface": null,
      "z_range": [
        -3,
        -3
      ]
    },
    {
      "biome": "core:hell",
      "kind": "Terminal",
      "secret": false,
      "subsurface": null,
      "z_range": [
        -4,
        -4
      ]
    },
    {
      "biome": "core:deep_seal_band",
      "kind": "Seal",
      "secret": false,
      "subsurface": null,
      "z_range": [
        -5,
        -5
      ]
    },
    {
      "biome": "core:scolopendra",
      "kind": "Terminal",
      "secret": true,
      "subsurface": null,
      "z_range": [
        -6,
        -6
      ]
    },
    {
      "biome": "core:open_air_band",
      "kind": "Terminal",
      "secret": false,
      "subsurface": null,
      "z_range": [
        1,
        1
      ]
    },
    {
      "biome": "core:sky_seal_band",
      "kind": "Seal",
      "secret": false,
      "subsurface": null,
      "z_range": [
        2,
        2
      ]
    },
    {
      "biome": "core:heaven",
      "kind": "Terminal",
      "secret": false,
      "subsurface": null,
      "z_range": [
        3,
        3
      ]
    },
    {
      "biome": "core:nirvana",
      "kind": "Terminal",
      "secret": true,
      "subsurface": null,
      "z_range": [
        4,
        4
      ]
    }
  ]
}