Simple Caves Expansion 1.21.120+ [Achievement Friendly]

Have you ever felt like the game is missing cave biomes? If so, you'll love this add-on! It adds up to 9 underground biomes, and best of all, it doesn't add any new blocks—it uses the ones already in the base game!

It is necessary to download and install both packages BP and RP, otherwise it will not work!

This addon requires at least version 1.21.120, it does not work on older versions!

Have you ever felt like the game is missing cave biomes, or simply want to explore new ones? If so, you'll love this add-on!

Add up to 9 biomes without adding any new blocks or items. Use blocks from the original game to create unique and interesting underground biomes!
It adds a variety of cave biomes that the "Cave and Cliffs" update could have included. Therefore, the biomes added by this add-on are simple, but try to take full advantage of the potential of vanilla blocks to create new caves with a vanilla style!

For new biomes throughout the overworld, download this addon: Simple Biomes Expansion

For new biomes in the Nether, download this addon: Nether Biomes Expansion

The new underground biomes are:

Jungle Caves: a small jungle with lots of vegetation, ideal for finding large amounts of wood if you've run out of that important resource!

Amethyst Caves: a biome that resembles a giant geode, filled with Amethyst Clusters and Amethyst Buds. Monsters don't spawn here!

Pale Caves: an underground pale garden, an interesting biome that contrasts nicely with the Lush Caves!

Black Caves: a dark cave made of black concrete powder, black concrete, and blackstone. It's a dangerous place because the fog is black and dense. Diamonds and coal are more common here!

Tuff Caves: a cave made of tuff, with many spikes. It can be dangerous to traverse. Iron and copper are more common here!

White Caves: a cave made of diorite and calcite. There are large quantities of iron here!

Swamp Caves: wild caves with oak trees and giant red mushrooms; sometimes patches of water can appear!

Volcanic Caves: Made of basalt, blackstone, and magma, they have many spikes and a large amount of lava. A dangerous and difficult biome to explore, redstone and coal generate most frequently here!

Mushroom Caves: Caves made of mycelium, containing giant mushrooms, and inhabited by Mooshrooms. No hostile mobs spawn here!

Addon Gameplay: