Cavernous is a datapack that brings many new biomes and features to the caves of Minecraft while maintaining a vanilla like feeling.

A port of Cavernous making use of Patched to make it work with other mods such as Terralith.

Cavernous Bare-bones is a version of Cavernous that includes only the world gen aspects of Cavernous while leaving out things like custom items, features, blocks, etc.

Vanilla-plus style datapack that adds a plethora of structures, biomes, items, and features with an emphasis on lore and environmental ambience.