Ethereal NG
TenPlus1

Adds many new biomes, items and mechanics into the world.

Nether
PilzAdam

Adds a deep underground realm with different mapgen that you can reach with obsidian portals.

Technic
RealBadAngel

Extensive machinery mod with electricity and ores.

Extra Biomes
CowboyLv

Adds extra biomes, while keeping its looks close to the vanilla MTG

pathv7 redo! (Mapgen V7 only)
1F616EMO

Creates a worldwide network of paths, bridges and tunnels.

Caverealms Lite
Shara

A mod for Minetest to add underground realms.

Dungeons Plus
EmptyStar

Decorates dungeon rooms with unique layouts and features

Wilhelmines Living Jungle
Liil

Adds a new type of dense jungle biome to your world

Technic Plus
mt-mods

Technic fork with focus on features and stability

Swamp Biome
Atlante

This mod adds a new swamp biome, with mangrove trees, mud and more!

Native Villages
Liil

Adds villages of native people to the world.

Pyramids (with treasures)
Wuzzy

Pyramids with treasures!

Other Worlds
TenPlus1

Adds asteroid layers and height-based skybox switches to create space environments.

Nether
Hybrid Dog

The underworld for Minetest.

Australia
demon_boy

Adds a wide variety of Australia-themed biomes and content

the curse of the corngirl
Soundwavez

adds a creepy cornfield, with a dark secret...

Baked Clay
TenPlus1

Adds the ability to bake clay into blocks and colour them with dye.

Algae
Just_Visiting

Algae mapgen addition to "Minetest Game"

Technic Plus Beta
mt-mods

The technic modpack extends the Minetest game with many new elements, mainly constructable machines and tools.

The Lower Road
Deadlock

Adds a long road from -Z to +Z to the world, during world-generation.

Ore Deposits
Tarruvi

Adds ore deposits that can randomly spawn on stone

Sunset Biomes
RisingLeaf

Adding two biomes and stuff around them.

Wilhelmines Living Desert
Liil

Adds plants to the default deserts of minetest game.

Wilhelmines Living Floatlands
Liil

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

Livingcaves
Liil

Adds more life to the caves of your world

Quartz
Evergreen

Adds quartz ore and some decorative quartz blocks

Caverealms
HeroOfTheWinds

A mod for Minetest to add underground realms.

Fireflies
Shara

Adds fireflies which can be caught in a net and placed in bottles for lighting.

Badlands
AwesomeDragon97

Adds the badlands biome, which contains plentiful clay and gold.

block physics
GigaByte

Add pieces of broken blocks when breaking them.

In the Fog
Jo5629_

Herobrine has entered your world.

Swamplified
Neuromancer

This mod adds a few more nice touches to Atlante's Swamp biome mod

Swamps
Hybrid Dog

Adds swamps

Zinc
alerikaisattera

Zinc metal, used for making brass

Dyes for Extra Biomes
Skivling

Deprecated because after ebiomes v1.5.0, dye recipes are included by default, making this unnecessary. Adds dye recipes for the flowers from Extra Biomes.

Giant Mushroom/ Mushrooms
Hybrid Dog

Add mushrooms and giant mushrooms.

XNether
Ghaydn

Adds trees, grass and ores to PilzAdam's Nether

Nether addons
DragonWrangler

adds more nodes and decorations to the nether

Underground Challenge
Hypernoot

Explore all 62 underground biomes!

Bamboo
AwesomeDragon97

Adds bamboo which generates in jungles and can be used as a crafting ingredient.