Wilhelmines Living Jungle
Liil

Adds a new type of dense jungle biome to your world

Loria (alpha)
siegment

Survival in hardcore acid-alien sci-fi themed world

Wilhelmines Natural Biomes
Liil

Adds 9 new biomes

Wilhelmines Living Floatlands
Liil

Adds various prehistoric animals to your Floatland Zone, if you are using V7 Map Generator.

Multiple Biome Generator
chaosomnium

230 Pseudorandomly Generated Biomes, Trees, Fruits, Ores, Tools, and Liquids

Wilhelmines Living Desert
Liil

Adds plants to the default deserts of minetest game.

Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.

Aotearoa
Eris

Fork of aotearoa by Dokimi. Complements the default map biomes with Aotearoa, land of the long white cloud, New Zealand.

Warning: Non-free media.