Terralith

Terralith ~ Overworld Evolved is a project made to completely revolutionize the Overworld's generation. Released July 28th of 2021, Terralith makes a full use of the new WorldGen tools of this version to create beautiful landscapes with new terrain types and more than 70 new biomes, inspired by places all around the world or by fantastical fauna, while also enhancing existing biomes and adding new variants to them.

The new caves have also been enhanced with new cave shapes and about 10 new cave types.