About Better Underground Caves
From ModrinthOptimize the original cave terrain and add large underground cave terrain.
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

Highlights
From source dataGame versions
Supports 22 Minecraft versions, the newest being 1.21.11.
Loaders
Runs on Data pack, Fabric, Forge, NeoForge and Quilt.
Footprint
Rated a light load on a server.
What kind of mod it is
From the catalogWorld generation
Changes or adds to how new terrain, biomes and structures are created.
Runs on your server
From source side supportModrinth lists Better Underground Caves as required on the server. Check its Modrinth page to see whether players need it too.
Compatibility
- Game
- Minecraft
- Loaders
- Data packFabricForgeNeoForgeQuilt
- Runs on
- Serverrequired on the server
- Game versions
- 1.21.11 and 21 earlier
Verified at the source
- ✓ModrinthOfficial listing, checked 2026-10-01Open ↗
- ✓Authorwonderful_Ai_Chen, as published on Modrinth
- ✓LicenseLicenseRef-All-Rights-ReservedFree










