
This is an independent data pack for epic underground cave terrain, optimizing the original cave terrain and adding large underground cave features.
💡Features:
- Better caves, where there will be more flat ground, reducing vertical drop caves (the aim is to descend layer by layer like in a dungeon).
- Reduce the generation of large caves in low elevation and flat terrain, mainly generating on mountains.
- Add randomly generated underground caverns below y0 and generate magma rivers.
🖼️Screenshots

Ченджлог
v0.2Бета1.21.9, 1.21.10, 1.21.11 · 3 марта 2026 г.
It's a beta version! I can't guarantee that updating the world to the beta or exiting the beta will be 100% safe. Make a backup!
Bug Fix:
- Add support for version 1.21.11.
- Fixed some bugs.
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