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.

Plantlife
mt-mods

Adds various kinds of plants, fruit bushes, fallen trees, and a whole host of foliage and other ground cover.

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

Adds underground realms.

Beautiful Flowers
1faco

Adds many flowers to MT

Pyramids (with treasures)
Wuzzy

Pyramids with treasures!

Technic Plus
mt-mods

Technic fork with focus on features and stability

Wilhelmines Living Jungle
mt-mods

Adds a new type of dense jungle biome to your world

Dungeons Plus
EmptyStar

Decorates dungeon rooms with unique layouts and features

Swamp Biome
Atlante

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

Natural slopes for Minetest Game
karamel

Add natural slopes for Minetest Game

the curse of the corngirl
Soundwavez

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

Alive AI
AiTechEye

Advanced survivor ai mobs (npc, monsters and more)

Wilhelmines Natural Biomes
Liil

Adds 9 new biomes

Other Worlds
TenPlus1

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

Nether
Hybrid Dog

The underworld.

Randungeon
Phii

adds highly randomized vivid dungeons to the world, and tools to spawn/customize them.

Industrious
StarNinjas

Adds new industrious-themed blocks and tools.

Australia
demon_boy

Adds a wide variety of Australia-themed biomes and content

Algae
Just_Visiting

Algae mapgen addition to "Minetest Game"

Baked Clay
TenPlus1

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

Giant Mushroom/ Mushrooms
Hybrid Dog

Add mushrooms and giant mushrooms.

Native Villages
Liil

Adds villages of native people to the world.

Ocean
StarNinjas

Adds coral reefs, fish, decorative ocean blocks and much more!

Livingcaves
Liil

Adds more life to the caves of your world

Technic Plus Beta
mt-mods

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

Dense Ores
benedict424

Adds rare ores with twice the drops of their normal counterpart.

Better Biomes by Atlante
Neuromancer

This mod adds some of the subtle understated beauty of nature to your biomes to make the world look more natural. It was created by Atlante.

Amethyst
alerikaisattera

Amethyst, basalt, calcite and related building blocks

Shallow Ores
Monniasza

Places ores shallower in your world! No more time wasted digging!

3d ores!
Soundwavez

a slick new take on the default ores!

Multiple Biome Generator
chaosomnium

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

Ore Deposits
Tarruvi

Adds ore deposits that can randomly spawn on stone

The Lower Road
Deadlock

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

Stone Chests
AwesomeDragon97

Replaces the wooden chests found in dungeons with stone chests.

Unter Null
Casimir

You start swimming in the middle of an infinite ocean. Take your time and build.

Sunset Biomes
RisingLeaf

Adding two biomes and stuff around them.