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  "path": "/viewtopic.php?p=450597#p450597",
  "publishedAt": "2026-04-17T23:31:47.000Z",
  "site": "https://forum.luanti.org",
  "tags": [
    "Mik"
  ],
  "textContent": "For a game I'm writing, I need a *reliable* deep underground lava lake biome. The underground biomes of minetest_game aren't reliable in that they *might* create lava_source but that is not guaranteed and they are usually not deep enough.\n\nThe basic idea is, that there is a very hard to get item, which is only found deep underground at the bottom of a lava lake -- the deeper, the higher the chance that the item is there.\n\nFor now now two weeks, I try to build such a biome, getting into the noise and mapgen math, tried to adapt paramat's lvm_example and similar mapgen examples. But I just don't get it working.\n\n\nSo, how do you do an underground biome that blends nicely into the surrounding map and reliably places one or two mid-sized lava lakes?\n\n\nThanks for you time!\n\nStatistics: Posted by Mik — Fri Apr 17, 2026 23:31\n\n* * *",
  "title": "Modding Discussion • How to do an Underground Magma/Lava Lake or Lava pocket?",
  "updatedAt": "2026-04-17T23:31:47.000Z"
}