Ethereal NG
TenPlus1

Adds many new biomes, items and mechanics into the world.

Other Worlds
TenPlus1

Adds asteroid layers and height-based skybox switches to create space environments.

Baked Clay
TenPlus1

Adds the ability to bake clay into blocks and colour them with dye.

PB&J Pup and Nyan Cat
TenPlus1

Adds PB&J Pup, Nyan Cats or MooGnu into your world

Nssb
TenPlus1

BIOME integration for nssm, the not so simple buildings.