Although the Nether biome is a hot topic, remember that items still should be put in their proper categories, even if they are Nether related. Please read the pinned post on creating biomes and dimensions. Please put items for the new Mountains and Nether Updates in their proper categories. Remember portals are structures, that includes Nether portals.

Vote for an existing idea or New post

9votes
Dead Volcano biomes
9votes
The Grove Dimension
9votes
Marsh Biome
9votes
'Deep Underground' Zone (Part One of Two)
9votes
Add an option to create different world sizes.
9votes
new biome: the alps
9votes
Better cave generation in amplified
9votes
Nether improvements
9votes
Large Oak Forest
9votes
Snowy Giant Tree Taiga
9votes
(Nether biome) Lava Ocean
9votes
The Dungeons and Dimensions Update
9votes
More Shallow Waters at Beaches
9votes
BIOME: Alpine Tundra
9votes
The End Islands, but better [biomes]
9votes
Biome Overhaul Part 1 : Desert
9votes
Dungeon Running (Bosses, not just chest and spawner)
9votes
creeper dimension
9votes
videogame dimension
9votes
The Below-World Update (Part 3): Why Stay In A Place Like This?
9votes
Deep Sea Caverns "With Flowing Magma Lakes"
8votes
The Cosmos Dimension
8votes
Adaptive / Player Made Biomes
8votes
Plant life in Soul Sand Valley biome
8votes
Sub Nether
8votes
Floating Mountains and Chasm Islands
8votes
(Nether) Glowing Plains
8votes
Magnolia biome
8votes
Dry Tundra Biome
8votes
Rivers In The Nether (Prevents Shriveling. Nether Update)