Please read the pinned post on creating biomes and dimensions. This is not a category designed for entire huge updates, this is a biomes and dimensions category. Remember that individual items, mobs, and structures should still go in their own categories.

Vote for an existing idea or New post

29votes
Underworld Dimension? needs info
2votes
Unnamed Dimension (with Blazes) needs info
3votes
Dimensions based on a single type of monster (was: Nuevas dimensiones) needs info
3votes
Corruption/ badlands/ dark lands needs info
23votes
Wastland biome needs info
69votes
Large biomes /Amplified Worlds needs info
22votes
Update Magma needs info