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.
Better Underground Caves on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
- Server side
- Required on the server
- Server type needed
- Data pack, Fabric, Forge, NeoForge, Quilt
- Server load
- light
- Smallest plan we suggest
- Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- v0.2+mod (beta), released 2026-03-03
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Data pack | 1.19.2 to 1.21.11 (22 versions) | 1.21.11 |
| Fabric | 1.19.2 to 1.21.11 (22 versions) | 1.21.11 |
| Forge | 1.19.2 to 1.21.11 (22 versions) | 1.21.11 |
| NeoForge | 1.19.2 to 1.21.11 (22 versions) | 1.21.11 |
| Quilt | 1.19.2 to 1.21.11 (22 versions) | 1.21.11 |
From 4 recorded builds of Better Underground Caves.
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| v0.2+mod beta | 2026-03-03 | 1.19.2 to 1.21.11 (22 versions) | Fabric, Forge, NeoForge, Quilt |
| v0.2 beta | 2026-03-03 | 1.19.2 to 1.21.11 (22 versions) | Data pack |
| 0.1+mod beta | 2025-08-24 | 1.19.2 to 1.21.8 (19 versions) | Fabric, Forge, NeoForge, Quilt |
| 0.1 beta | 2025-08-22 | 1.19.2 to 1.21.8 (19 versions) | Data pack |
Run Better Underground Caves on a Minecraft server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogListed on Modrinth as “Mods”
World 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
