ModsJava
YUNG's Cave Biomes (Forge/NeoForge)
Adds new vanilla+ cave biomes and underground content!. Free Minecraft Java mod for 1.21, 1.21.1, 1.20.1.
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
YUNG's Cave Biomes is a vanilla+ mod that adds two new cave biomes to the game, the Frosted Caves and the Lost Caves! Each biome features the addition of a new mob, new blocks, items, music, and more.
YUNG's Cave Biomes is intended to be fully compatible with every mod, including other worldgen mods. Any known incompatibility notes will be mentioned here. If you encounter any compatibility issues, please let us know in the Discord!
Optifine:
- The thick yellow fog won't render during sandstorms. Still looks good, just not as cool of a visual effect.
- Enchanted Ice is visible even when embedded in ice. Doesn't really affect gameplay.
Distant Horizons
- The thick yellow fog won't render during sandstorms in the Lost Caves. Still looks good, just not as cool of a visual effect.
Verified by MCModsHub
- Ships as YungsCaveBiomes-1.20.1-Forge-2.0.5.jar — drop this file into the mods folder
- Download size: 12.4 MB
- Download link checked 8 Sept 2026 — working
These come from our own check of the pack file, not from the source page.
