Jean Caves
by jeancrafteo
Jean Caves changes underground generation in the overworld, adding five cave biomes and five new structures to existing worlds and new ones alike.
What it does
Jean Caves adds five cave biomes that replace parts of the standard underground: redstone, amethyst, dry, cold and pale caves. The biomes are meant to keep caves lively with a vanilla look without heavily altering the existing generation. Five new structures are added as well, including a ruin biome and a structure that holds a music disc.
Inside the new structures the mod places custom mobs, which drop claws and iron pickaxes with a different texture, and a diamond sword with altered attributes. The author text notes that mobs are shown with variants through a resource pack, which requires OptiFine, ETF and a Fabric build.
The mod is server required and client optional: the server must run it, while players may leave it out. Files are published for Fabric, Forge, NeoForge and Quilt across eight release versions, 1.21.5 – 26.1.2, and the code is licensed under All rights reserved, so it is not open source. The latest file for every loader is 26.1+mod for 26.1.2, dated 2026-05-04.
Key features
Five cave biomes
Redstone, amethyst, dry, cold and pale caves are added to the underground without reshaping the vanilla caves much.
Five new structures
One structure is a ruin biome and another holds a music disc, adding places to explore.
Custom cave mobs
Mobs placed inside the new structures drop claws and iron pickaxes with a different texture.
Altered diamond sword
A diamond sword with changed attributes is part of the custom loot.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Players and server owners looking for more underground variety in the overworld. Players who want the mob variants need the listed resource pack and its dependencies.
How it compares
Simple Structures: Caves is server required and client optional, published for Fabric, Forge, NeoForge and Quilt across 1.19.2 – 26.3, under the MIT License and not open source. YUNG's Better Caves is server-side only, published for Fabric, Forge and NeoForge across 1.20.1 – 26.1.2, and is open source under the GNU Lesser General Public License v3.0 only. Cleaner Caves is server required and client optional, published for 1.21.5 – 26.3 under the GNU General Public License v3.0 only, and is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Jean Caves | Fabric, Forge, NeoForge and Quilt | 1.21.5 – 26.1.2 | Server required, client optional | 2026-05-04 |
| Simple Structures: Caves | Fabric, Forge, NeoForge and Quilt | 1.19.2 – 26.3 | Server required, client optional | 2026-09-27 |
| YUNG's Better Caves | Fabric, Forge and NeoForge | 1.20.1 – 26.1.2 | Server-side only | 2026-09-04 |
| Cleaner Caves | Fabric, Forge, NeoForge and Quilt | 1.21.5 – 26.3 | Server required, client optional | 2026-10-10 |
Questions
Does Jean Caves need to be installed on the client?
Which loaders does Jean Caves support?
What is needed to see the custom mob variants?
In the catalog
Jean Caves is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 15,189 mods support Minecraft 26.1.2.
More from jeancrafteo
Similar mods
What the author says
This datapack adds 5 biomes to minecraft caves, making them more alive, but with some vanilla vibes, it doesn't disturb too much de gen of the caves. Redstone caves, amethyst caves, dry caves, cold caves and pale caves.
Official listing
- Modrinth page
- modrinth.com/mod/jean-caves
- Owner
- jeancrafteo
- Published
- 2025-05-03
- Updated on Modrinth
- 2026-05-04
- Facts verified
- 2026-10-15