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

26votes
The Map Makers Dimension
228votes
luminescent forest
267votes
(Biome) Dead Forests
24votes
Milk dimension
35votes
Soul River Biome
76votes
Brimstone Caves(Nether Update)
25votes
Underworld Dimension? needs info
53votes
More Frequent Jungles
173votes
Frostland Dimension (was: New Dimension: Frostland)
130votes
Improvements to Rivers
184votes
Better Snowfall
81votes
More biomes in the Nether Update
15votes
Make the new Nether Trees grow from the Ceiling as well.
35votes
A biome called the Arachnid Forrest, a place filled with spiders.
34votes
(Java Parity) Nether should use the full 256 world height.
30votes
The Mythos Dimension – Hub Post (Read First)
100votes
White sand beaches
67votes
Atlantis
121votes
Nether Biome: Obsidian Shores
39votes
Purple Lightning In The End
15votes
McNether Update 1.15 or 1.16
8votes
The RAREST biome of all: the StarBiome
2votes
Ready Player One Dimension
41votes
Heaven Dimension (was: Overworld, Nether, End, and ******)
40votes
Add Biome Bundle mod to minecraft
75votes
Curse of the Werewolf!
84votes
Nether biome Magma Fields
23votes
End Islands sometimes generate at different heights
46votes
(Plains Biome) Decrease the amount of waterholes
13votes
The Mycosphere - a challenging new Underground biome