Jean Caves Data Pack (1.21.8, 1.21.5) – Revamped Overworld Caves With New Biomes
Jean Caves Data Pack overhauls the overworld's underground by adding 5 unique cave biomes, each with its own atmosphere, terrain, and visual identity. It…
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Jean Caves Data Pack overhauls the overworld’s underground by adding 5 unique cave biomes, each with its own atmosphere, terrain, and visual identity. It also introduces 2 new surface biomes to seamlessly complement the cave experience, making exploration more diverse and immersive from the surface to the depths.
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Features:
- 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.
- 5 New structures, 1 ruin for each biome, you will find a music disc for each structure.
- The custom mobs inside structures drops Claws, the claws are just iron pickaxes with another texture, and the diamond sword attributes.
Screenshots:








Jean Caves Data Pack Download Links
For Minecraft 1.21.8, 1.21.7, 1.21.6
Data Pack: Download from Server 1 – Download from Server 2
Resource Pack: Download from Server 1 – Download from Server 2
For Minecraft 1.21.5
Data Pack: Download from Server 1 – Download from Server 2
Resource Pack: Download from Server 1 – Download from Server 2
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.8, 1.21.5
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
- Download size: 867 KB
- Download link checked 17 Jun 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.