Nether
Hybrid Dog

The underworld.

Other Worlds
TenPlus1

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

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

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"

Extra Structures for Mineclonia/VoxeLibre
mt-mods

Adds extra structures to MineClone2

Wilhelmines Marinara
Liil

adds water structures and coral reefs to the oceans of your world

Native Villages
Liil

Adds villages of native people to the world.

Ocean
StarNinjas

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

VoxeLibre Skyblock
ancientmariner

Skyblock for VoxeLibre

Natural Habitat
Mish7913

Adds more Plants and Biomes to the game.

Rail Corridors + Treasures
Wuzzy

Adds simple underground mines with railways and occasional treasure chests.

Shipwrecks
mt-mods

A simple mod that adds various shipwrecks with treasures into the ocean

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.

Amethyst
alerikaisattera

Amethyst, basalt, calcite and related building blocks

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.

Dense Ores
benedict424

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

Shallow Ores
Monniasza

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

Just a Mountain
Deadlock

Adds a Mountain (4000x2000 blocks large, 1000 blocks tall)during worldgen around a configurable position

Dungeon flora
rnu

Adds flora to cobblestone dungeons

Stone Age Integration Pack
csirolli

Adds basic stone age & survival tools and makes the start in the world harder

The Lower Road
Deadlock

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

Biospheres
Feufochmar

A map generator generating single-biome islands inside glass spheres.

Multiple Biome Generator
chaosomnium

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

3d ores!
Soundwavez

a slick new take on the default ores!

Mineclone2 Underwater Challenge
NO11

A survival challenge for Mineclone2. Try to survive in a flooded world.

Datatest
dibesfer

8 new biomes with nodes, ores and schematics, inspired by digital data

NodeCore Cats
Warr1024

Add adorable cats to NodeCore

Ore Deposits
Tarruvi

Adds ore deposits that can randomly spawn on stone

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.

Cloud Items
Panquesito7

Powerful cloud tools.

Warning: Non-free media.

Biome Lib
mt-mods

The biome spawning and management library.

Ruined structures
X-DE

Adds ruins to desert, sandstone desert, icesheet, snowy grassland, taiga, rainforest and tundra

Wilhelmines Living Floatlands
Liil

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

Wilhelmines Living Desert
Liil

Adds plants to the default deserts of minetest game.