Draconis
ElCeejo

Adds Dragons and related resources and equipment to Minetest Game

Water Life
Gundul

new mobs for your river and sea water

Nether
PilzAdam

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

Biome Lib
VanessaE

The biome spawning and management library.

Technic
RealBadAngel

Extensive machinery mod with electricity and ores.

More Trees!
VanessaE

Adds a whole bunch of new types of trees, some bearing fruit or similar, using biome_lib for the placement engine.

Ethereal NG
TenPlus1

Ethereal mod uses the v7 mapgen to add many new biomes to the world.

Plantlife
VanessaE

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

More Ores
Calinou

Adds new ore types.

Dwarf Fortress style caverns
FaceDeer

Adds vast underground caverns in the style of Dwarf Fortress, complete with underground flora in diverse biomes.

Villages
Sokomine

Explore the world and find villages of diffrent types. Buy a house in a village and settle down.

Cool Trees
runs

It adds some cute trees.

Handle Schematics
Sokomine

A library to make creating and placing saved areas easier.

Natural slopes for Minetest Game
karamel

Add natural slopes for Minetest Game

Baked Clay
TenPlus1

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

Cloud Items
Panquesito7

Powerful cloud tools.

Basic Houses
Sokomine

Simple random houses spawning in small groups on the map

Alien Material
debiankaios

Adds new blocks, items, and tools from aliens. A new time begins.

Experimental Villages Mapgen
Nore

Changes the way ores are placed, add new biomes and villages.

Islands
Termos

lua mapgen featuring tropical islands and vast ocean

Caverealms Lite
Shara

A mod for Minetest to add underground realms.

Pyramids (with treasures)
Wuzzy

Pyramids with treasures!

Native Villages
Liil

Adds villages of native people to the world.

Mineclone2 Nether Gold Ore
NO11

Adds Nether Gold Ore

SwampZ
runs

A cool swampy biome.

Algae
Just_Visiting

Algae mapgen addition to "Minetest Game"

Citygen
BuckarooBanzay

city mapgenerator

Technic Plus
mt-mods

Technic fork with focus on features and stability

Stonebrick Dungeons
Hamlet

Turns newly generated cobblestone dungeons into stonebrick.

Quartz
Evergreen

Adds quartz ore and some decorative quartz blocks

Aquaz
runs

Stuff for oceans

Natural slopes library
karamel

Library to simply add slopes to regular nodes and include them on map generation and when changing the landscape.

Hallelujah Mountains (AKA Cloudlands)
DrFrankenstone

Giant rocks floating suspended in magnetic eddies. (skylands, islands, fantasy, giant trees)

Caverealms
HeroOfTheWinds

A mod for Minetest to add underground realms.

Darkage - the original plus improvements
addi

DarkAge adds several new nodes and crafts to create a pre industrial landscape.

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.

SkyRealm for NodeCore
Warr1024

SkyBlocks inside vanilla NodeCore

PB&J Pup and Nyan Cat
TenPlus1

Adds PB&J Pup and Nyan Cats into your world

Multiple Biome Generator
chaosomnium

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

Fireflies
Shara

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