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.

Caverealms Lite
Shara

A mod for Minetest to add underground realms.

Technic Plus
mt-mods

Technic fork with focus on features and stability

Wilhelmines Living Jungle
Liil

Adds a new type of dense jungle biome to your world

Native Villages
Liil

Adds villages of native people to the world.

Other Worlds
TenPlus1

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

Pyramids (with treasures)
Wuzzy

Pyramids with treasures!

Nether
Hybrid Dog

The underworld for Minetest.

the curse of the corngirl
Soundwavez

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

Algae
Just_Visiting

Algae mapgen addition to "Minetest Game"

Wilhelmines Marinara
Liil

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

Rail Corridors + Treasures
Wuzzy

Adds simple underground mines with railways and occasional treasure chests.

Wilhelmines Natural Biomes
Liil

Adds 9 new biomes

Technic Plus Beta
mt-mods

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

Cloud Items
Panquesito7

Powerful cloud tools.

Warning: Non-free media.

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.

Livingcaves
Liil

Adds more life to the caves of your world

Nssb
TenPlus1

BIOME integration for nssm, the not so simple buildings.

Caverealms
HeroOfTheWinds

A mod for Minetest to add underground realms.

In the Fog
Jo5629_

Herobrine has entered your world.

pilzmod
Phii

a spreading mushroom biome which you can spawn into the world, with its own monsters and a boss you need to slay to stop the biome's growth. Best played with bow & armor mod and after reading manual.

UFO wreck
Irremann

UFO wreck

Giant Mushroom/ Mushrooms
Hybrid Dog

Add mushrooms and giant mushrooms.

Nether addons
DragonWrangler

adds more nodes and decorations to the nether

Time Travel
Red_King_Cyclops

Adds in a craftable time machine that can be used to time travel to different time periods of Earth's history.

Easy ores
X-DE

Minetest ores now generate higher up

Easter Eggs / Ostereier
Ineva

Adds various coloured eggs for Easter!