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

5votes
Mystic dimension
18votes
Underground Forests
3votes
Diamond Dimension
7votes
(Nether biome) dead root island
4votes
Make Hardcore Harder (Part 2, World Generation)
5votes
Elemental dimension
1vote
Recolour the Nether
2votes
Enchanted Orb/Pocket Dimensions
10votes
The Smog Heaps—A new Nether biome w/ mobs, blocks (Concept art included)
16votes
More Shallow Waters at Beaches
3votes
illager dimension
8votes
The Android Biome
15votes
War Ravaged Biome
11votes
Missing biomes: Rocky plains biome
5votes
ghost land
1vote
Femur world
7votes
Lava spawning changes in the overworld
10votes
Biome-Specific Underground
12votes
More Dangerous (Unnamed) Dimension Idea
5votes
Humidity meter for each biome.
3votes
Chaos Dimension
0votes
Taras
2votes
Ore based dimension(s)
2votes
The Start
5votes
Swamp oak trees
8votes
Re-add Gravel Beaches
2votes
Сhange in climatic zones from north to south.
3votes
Citrus biome?
15votes
Desert Update Part 1: Small Features and Dungeon Overhaul
11votes
Lower Gravity in the End