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

39votes
Add Biome Bundle mod to minecraft
37votes
Purple Lightning In The End
37votes
Adding Life to the Underwater Caves
37votes
(Swamp) Dead Swamp biome variant
36votes
Better Caves Idea 4 - Nether Caves
35votes
End Demention new features
35votes
34votes
A biome called the Arachnid Forrest, a place filled with spiders.
34votes
animal land
34votes
Waterfalls and Water Patches in the End.
34votes
34votes
The crystal dimension
33votes
Darkforest
33votes
Adding the solar planets and portals to them
32votes
1.15 The Turn and Burn Update, Part 1, The Nether
31votes
Gold ore generates in the nether
31votes
Deserts should have 4 different sub-biomes or types of generation
31votes
Extreme Falls Biome | Waterfalls
30votes
(Nether Update) Withering Vents Biome!
30votes
30votes
Mountain Biome (realistic)
30votes
Tide pools on seaside Beaches
30votes
The Mythos Dimension – Hub Post (Read First)
30votes
Impact Biome
29votes
Wild, colorful dimension (was: A new dimension!)
29votes
Personal Dimension
27votes
Better lakes and rivers
27votes
Valley Biome that generates in the middle of Extreme hills / Mountains
27votes
The Tangle (New end Biome)