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!

Shallow Ores
Monniasza

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

Dense Ores
benedict424

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

Stone Chests
AwesomeDragon97

Replaces the wooden chests found in dungeons with stone chests.

Multiple Biome Generator
chaosomnium

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

Unter Null
Casimir

You start swimming in the middle of an infinite ocean. Take your time and build.

Magma Conduits
FaceDeer

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

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.

3d ores!
Soundwavez

a slick new take on the default ores!

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

NextGen Bedrock
StarNinjas

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

Loose Rocks
eduardomezencio

Adds loose rocks which generate randomly on the surface.

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!

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.

Winuser Leafdecay
Liil

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

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.

Generic moon of Saturn
Red_King_Cyclops

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

Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.

Magma
SuperStarSonic

Adds volcanoes, lava vents and new magma blocks

Ancient Ice Stuff
Robot10&Scheletor

Adds a new powerful ore to the game

Quartz Geodes
AwesomeDragon97

Extends the Geodes mod with quartz geodes.

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing

My Treasure
Don

Adds treasure chests around the world

Valleys Mapgen
Gaël de Sailly

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

Beautiful Boulders
regulus

Procedurally Generated Rocks with (pretty) Accurate Collision Boxes

Unstable Caves
M BLOC

Some stones may cave in if punched, making underground expeditions more risky.