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

2votes
under the lava
7votes
Redstone Dimension
15votes
Magma Spikes Biome (For the Nether Update!)
9votes
The withering dephts
3votes
Stone Jungle (biome)
6votes
No rain in savannah and desert rivers
7votes
Rain Forests (Jungle Variant)
10votes
Better Birch Forests
16votes
Basalt hills biome for nether update
7votes
Soul streams absorbed by sand [Nether Update]
6votes
Yellow mushroom biomes and yellow mushrooms
8votes
Lakebed biome
7votes
Nether Biome: Foul Bog
5votes
Changing Biome Mechanics/Generating biomes with rainfall map
4votes
Cold Blue Netherwart Forests
10votes
New Hot Biome: "Tropical Wetlands"
10votes
Nether biome Magma Fields
11votes
Nether Portal Corruption
6votes
Toxic Badlands
4votes
The Future
11votes
The Flaming Sea (Nether Update Biome)
2votes
new dimension: Ice & fire
2votes
The Nether jungle
10votes
Obsidian Spikes(nether biome)
12votes
Land of the Lost (Nether Biome)
3votes
Nether biome name change
2votes
Parrots and Gravel Mines
5votes
Mushroom Biome Big Update
3votes
Bargona biome in nether
10votes
The Wither Caverns