Plantlife
mt-mods

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

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.

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.

Ocean
StarNinjas

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

Amethyst
alerikaisattera

Amethyst, basalt, calcite and related building blocks

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.

Badlands
AwesomeDragon97

Adds the badlands biome, which contains plentiful clay and gold.

NextGen Bedrock
StarNinjas

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

Magma Conduits
FaceDeer

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

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.

3d ores!
Soundwavez

a slick new take on the default ores!

Coconut Trees
AwesomeDragon97

Adds coconut trees that appear on beaches

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

Sedimentology
sofar

A mod that adds realistic erosion and degradation of rocks.

Loose Rocks
eduardomezencio

Adds loose rocks which generate randomly on the surface.

Sailing
cakenggt

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

Meze
Calinou

A special ore that kills you when mined.

Boring RPG
Lebedev

New items blocks and other pieces are waiting for you here

Grave
ElCeejo

Adds an eerie biome with multiple mobs.

Herbs
Clyde

Adds 15 flowers and 6 mushrooms.

Winuser Leafdecay
Liil

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

Desert Ores
DumbDave961

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

Ancient Bones
karlexceed

Adds bones with loot to dungeons.

Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.

Ancient Ice Stuff
Robot10&Scheletor

Adds a new powerful ore to the game

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.

Nyancat's heaven (reworked)
Hybrid Dog

Adds a nyanland in the sky

Quartz Geodes
AwesomeDragon97

Extends the Geodes mod with quartz geodes.