Beautiful Flowers
1faco

Adds many flowers to MT

Natural slopes for Minetest Game
karamel

Add natural slopes for Minetest Game

Alive AI
AiTechEye

Advanced survivor ai mobs (npc, monsters and more)

Other Worlds
TenPlus1

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

Industrious
StarNinjas

Adds new industrious-themed blocks and tools.

Randungeon
Phii

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

Ocean
StarNinjas

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

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!

Multiple Biome Generator
chaosomnium

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

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.

Cloud Items
Panquesito7

Powerful cloud tools.

Warning: Non-free media.

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.

Magma Conduits
FaceDeer

Removes default mapgen lava and adds widely-spaced vertical lava "veins".

NextGen Bedrock
StarNinjas

Adds an indestructible bedrock layer at the bottom of the world.

Geodes
AwesomeDragon97

Adds amethyst geodes and an API for making custom geodes.

Alien Material
debiankaios

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

Zero-Effort Custom Minerals
Piezo_

A tool for registering entire materials, complete with ore generation, tool-sets and automatically generated sprites with almost no effort required

3d ores!
Soundwavez

a slick new take on the default ores!

Sedimentology
sofar

A mod that adds realistic erosion and degradation of rocks.

Coconut Trees
AwesomeDragon97

Adds coconut trees that appear on beaches

Kitty/Kitto Ores
nemokitty9

Nemokitty9's own ore pack. Includes Tools!

Loose Rocks
eduardomezencio

Adds loose rocks which generate randomly on the surface.

Meze
Calinou

A special ore that kills you when mined.

Sailing
cakenggt

Live in a tropical paradise where you can sail, mine coconuts, etc.

Grave
ElCeejo

Adds an eerie biome with multiple mobs.

Boring RPG
Lebedev

New items blocks and other pieces are waiting for you here

Herbs
Clyde

Adds 15 flowers and 6 mushrooms.

Desert Ores
DumbDave961

Generates ores in deserts and other biomes. Also spawns raw ore blocks if enabled. Biome specific ore node variants coming soon.

Winuser Leafdecay
Liil

With this additiona leaf decay, all trees in naturalbiomes, livingdesert, livingjungle and livingfloatlands have a working leafdecay function.

My Treasure
Don

Adds treasure chests around the world

Ancient Ice Stuff
Robot10&Scheletor

Adds a new powerful ore to the game

Wildflower Fields
mzs.112000

Adds a wildflower field biome to Minetest Game.

Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.

Magma
SuperStarSonic

Adds volcanoes, lava vents and new magma blocks

Generic moon of Saturn
Red_King_Cyclops

Replaces the default earthlike setting with a generic moon of Saturn.

Valleys Mapgen
Gaël de Sailly

A map generator with valleys, rivers, mountains and many plants.

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Quartz Geodes
AwesomeDragon97

Extends the Geodes mod with quartz geodes.