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

128votes
The Spirit World
123votes
Put the far lands back in the game.
105votes
Improvements to Rivers
91votes
White sand beaches
69votes
The Pillowrock Caves - A Late-Game Cave Biome Inspired by Real World Geology.
68votes
Wasteland Biome
67votes
Tropical islands
67votes
Curse of the Werewolf!
67votes
Sky islands
64votes
City biome (abandoned)
63votes
Candy dimension (was: New dimension)
62votes
Atlantis
60votes
New Mountain Range Biome with higher building block limit/new mobs
53votes
Large biomes /Amplified Worlds needs info
52votes
Deeper Underground
52votes
Horror forest
50votes
The Underworld
49votes
Aqua Dimensions
48votes
More Frequent Jungles
48votes
The Deep Biome. New dimension, structures, mobs, and weapons.
47votes
Bedrock Dimension (was: New Dimensions)
46votes
Sand Layer Desert Biome
42votes
The Autrom Dimension (a Golem Dimension and some opening tips)
42votes
Linking the dimensions in one big dimension
41votes
Ocean Dimension
40votes
(Plains Biome) Decrease the amount of waterholes
39votes
38votes
Add Biome Bundle mod to minecraft
37votes
Heaven Dimension (was: Overworld, Nether, End, and ******)