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

Vote for an existing idea or New post

23votes
Topaz caves (Nether Biome Update Idea)
83votes
Biome Under the Nether Sea: Ancient Ruins, Submerged Caves, Dungeons, Traps
11votes
Generate Nether biomes in three dimensions
19votes
Adaptive / Player Made Biomes
47votes
(Nether) Poison Biome
5votes
Sever connections between Nether and End
59votes
Sulfuric Wastes Biome
17votes
Eroded Nether Waste Biome
56votes
The Blazing Desert (Nether Biome)
30votes
Extinguished Lava Oceans
18votes
End Ports/Docks
8votes
The End Garden of Treasures
30votes
The withered nether biome
11votes
The cracklands dimension
84votes
A “Quartz Desert” Biome for the Nether
12votes
Dimension Idea: Oculus, a world made of glass
20votes
Nether Surface -- An incredibly harsh, Alien Planet
4votes
Add seed generators for different dimensions
16votes
Plant life in Soul Sand Valley biome
24votes
Purple nether wart forest
12votes
Temperate Forest
2votes
Savanna variant with short and bush oak trees
18votes
(Nether Update) Witherstone Caverns Biome
12votes
Fruitopia biome
12votes
Sub Nether
17votes
165votes
The Jungle Update: Jungle Terrain improvements
97votes
New Biome: The Gloam Cavity! [Nether Update]
15votes
Green Netherwart Forest
12votes
Dead Under Water Biome