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The Flesh Underground x Terralith/Tectonic compat

The Flesh Underground x Terralith/Tectonic compat

DATA PACK
Compat for The Flesh Underground biome to spawn in Terralith/Tectonic generation
by DarkBombThirtyThree
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23 downloads
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Updated Oct 14, 2026
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Mod Support Utility
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I do NOT own any of these mods, just had this data pack made to allow 'The Flesh Underground" biome to spawn in Terralith x Tectonic generation. The links to the mods can be found below. Let me know if there's any issues.

THIS REQUIRES BIOLITH, IF IT IS NOT INSTALLED THIS DATAPACK WILL NOT WORK!!!!

Biolith: https://www.curseforge.com/minecraft/mc-mods/biolith

The Flesh Underground: https://www.curseforge.com/minecraft/mc-mods/the-flesh-underground

Tectonic: https://www.curseforge.com/minecraft/mc-mods/tectonic

Terralith: https://www.curseforge.com/minecraft/mc-mods/terralith

FleshUndergroundCompat.zip
MC 1.21.1, 26.1.2
Release 2026-09-18 Get
FleshUnderground_Biome.zip
MC 1.21.1, 26.1.2
Release 2026-09-17 Get

Requirements & install

How to use this data pack in Minecraft
Mods needed
None, works in vanilla
Minecraft
1.21.1 – 26.1.2
Install folder
saves/<world>/datapacks

How to install data packs

  1. Download the data pack .zip file (do not extract it).
  2. New world: click Data Packs on the world creation screen and drop the .zip in. Existing world: open .minecraft/saves/<world>/datapacks.
  3. Put the .zip into the datapacks folder of the world (servers: world/datapacks).
  4. Run /reload in game (or rejoin the world) and check it with /datapack list.
Browse more: Data Packs for 26.1.2 All data packs
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