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

38votes
Rare Nether Biome: Greed Islands
51votes
End Biome: Chorus Forest
11votes
The walrus pit
28votes
Yellow Netherwart Forest
19votes
Scorched Savanna
19votes
Timeless Forest
83votes
Biome Under the Nether Sea: Ancient Ruins, Submerged Caves, Dungeons, Traps
47votes
(Nether) Poison Biome
59votes
Sulfuric Wastes Biome
18votes
End Ports/Docks
6votes
Lava Lakes in Plains Biomes Slowly Create a "Praire Fire"
34votes
Fantasy Dimension for the Future: Ascendance
61votes
New Biome: Mushroom Cave
23votes
Nether Portal Corruption
7votes
Nether Biome: Greek Tartarus themed
17votes
Food dimension
32votes
Lake Biome
15votes
The "ultimate​ dimension"
33votes
A dimension where you can get your dead pets back
12votes
Underworld Dimension (Beneath the Overworld)
10votes
Electrical Biome! (In my opinion the warped forest is way better)
15votes
'Deep Underground' Zone (Part One of Two)
12votes
Dark Biomes (Overworld)
18votes
The Marsh Biome
33votes
(Bedrock Parity) Villages in Flat Dimensions
26votes
New Dimensions, Elder Stone, Elder Golem! New Boss Fight!
55votes
The Forgotten Biome (Contains Dinosaurs)
31votes
Missing biomes: Basalt column biomes
1vote
The Flora Dimension
21votes
Biome Variation (beach): MARSHLANDS