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

1vote
Stone biome
5votes
End forests
2votes
broken dimension
19votes
Madagascan Spiny Forest biome
22votes
Scrubland biome
26votes
New Dimensions, Elder Stone, Elder Golem! New Boss Fight!
23votes
'Shattered' mountains variant for every biome in the game
9votes
Mystic dimension
24votes
Underground Forests
1vote
The reversed dimension
13votes
Biome locator: Using Biome Pictures
15votes
Miners Dream
6votes
The Parallel Dimension
3votes
Diamond Dimension
7votes
(Nether biome) dead root island
6votes
Make Hardcore Harder (Part 2, World Generation)
11votes
Haunted Hills Biome
7votes
Elemental dimension
1vote
Recolour the Nether
3votes
Enchanted Orb/Pocket Dimensions
9votes
Core of the Earth
10votes
The Smog Heaps—A new Nether biome w/ mobs, blocks (Concept art included)
60votes
24votes
More Shallow Waters at Beaches
5votes
The Deeplands (dimension)
11votes
Giant Tree Forest Biome
4votes
illager dimension
4votes
The Great Beyond
55votes
The Forgotten Biome (Contains Dinosaurs)
7votes
Suggestions Sky Dimension (part 2)