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Ever wish that biomes were more than skin deep? This mod aims to make biomes extend all the way underground, and add some new features to the underground…

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Minecraft version

⬇ Download for 1.16.5 · Fabric⬇ Download for 1.16.5 · Forge
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.
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Ever wish that biomes were more than skin deep? This mod aims to make biomes extend all the way underground, and add some new features to the underground at the same time! New underground generation brings what's in the surface to the caves below,

Verified by MCModsHub

These come from our own check of the pack file, not from the source page.

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