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

131votes
Put the far lands back in the game.
131votes
The Spirit World
114votes
Improvements to Rivers
96votes
White sand beaches
75votes
The Pillowrock Caves - A Late-Game Cave Biome Inspired by Real World Geology.
73votes
Tropical islands
72votes
Curse of the Werewolf!
72votes
Sky islands
71votes
Wasteland Biome
69votes
New Mountain Range Biome with higher building block limit/new mobs
67votes
Candy dimension (was: New dimension)
67votes
Atlantis
66votes
City biome (abandoned)
64votes
Large biomes /Amplified Worlds needs info
56votes
Horror forest
55votes
Deeper Underground
54votes
The Underworld
52votes
More Frequent Jungles
52votes
The Deep Biome. New dimension, structures, mobs, and weapons.
51votes
Aqua Dimensions
49votes
Sand Layer Desert Biome
48votes
Bedrock Dimension (was: New Dimensions)
44votes
(Plains Biome) Decrease the amount of waterholes
43votes
The Autrom Dimension (a Golem Dimension and some opening tips)
43votes
Ocean Dimension
43votes
Linking the dimensions in one big dimension
41votes
40votes
Heaven Dimension (was: Overworld, Nether, End, and ******)
39votes
Add Biome Bundle mod to minecraft