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
Nether Update: New soul sand in soulsand valley should be called Soul Stone
7votes
Nether Update: That red shrub should be called the Wraithweed
4votes
The Otherworld
13votes
Deadlands Biome
16votes
Lake Biome
9votes
Shadewood trees and "Lost" biome
3votes
Vortex and Dark Compass
22votes
Rocky beaches
7votes
The "ultimate​ dimension"
5votes
Crimson biome
12votes
Making every biome relevant! (Specialize plants)
12votes
Great river biome
6votes
Underworld Dimension (Beneath the Overworld)
8votes
Gravel "traps" generating on cave ceilings
9votes
'Deep Underground' Zone (Part One of Two)
23votes
Cave Biomes (as a concept)
4votes
Lightning dimension bone blb
6votes
The Negaworld (dimension)
24votes
Forgotten biome
18votes
Underground jungles
9votes
Large Oak Forest
10votes
Every End Gateway should lead to a different End biome.
13votes
Flower Biome should be less rare to find
3votes
the nether gardens
1vote
Turn Off Nether (or make portals that don’t teleport)
28votes
Valley Biome that generates in the middle of Extreme hills / Mountains
1vote
chequred beacon universe
7votes
Wither Storm dimension
5votes
Toxic Caverns Introduces the Toxic Geyser Block!
8votes
Madagascan Spiny Forest biome