Badlands
AwesomeDragon97

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

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.

NextGen Bedrock
StarNinjas

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

Fireflies
Shara

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

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.

In the Fog
Jo5629_

Herobrine has entered your world.

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

block physics
GigaByte

Add pieces of broken blocks when breaking them.

3d ores!
Soundwavez

a slick new take on the default ores!

Loose Rocks
eduardomezencio

Adds loose rocks which generate randomly on the surface.

Swamps
Hybrid Dog

Adds swamps

Swamplified
Neuromancer

This mod adds a few more nice touches to Atlante's Swamp biome mod

Zinc
alerikaisattera

Zinc metal, used for making brass

Coconut Trees
AwesomeDragon97

Adds coconut trees that appear on beaches

Sedimentology
sofar

A mod that adds realistic erosion and degradation of rocks.

Sailing
cakenggt

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

UFO wreck
Irremann

UFO wreck

Grave
ElCeejo

Adds an eerie biome with multiple mobs.

Meze
Calinou

A special ore that kills you when mined.

Boring RPG
Lebedev

New items blocks and other pieces are waiting for you here

Dyes for Extra Biomes
Skivling

Deprecated because after ebiomes v1.5.0, dye recipes are included by default, making this unnecessary. Adds dye recipes for the flowers from Extra Biomes.

Giant Mushroom/ Mushrooms
Hybrid Dog

Add mushrooms and giant mushrooms.

Wilhelmines Living Desert
Liil

Adds plants to the default deserts of minetest game.

XNether
Ghaydn

Adds trees, grass and ores to PilzAdam's Nether

Nether addons
DragonWrangler

adds more nodes and decorations to the nether

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.

Underground Challenge
Hume2

Explore all 62 underground biomes!

Herbs
Clyde

Adds 15 flowers and 6 mushrooms.

Dragonbone Stuff
Robot10&Scheletor

Adds dragonbone set

Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.

Ancient Bones
karlexceed

Adds bones with loot to dungeons.

Alien Tools
chaosomnium

Alien Tools Mod for Minetest - adds Alien Tool, Shield, biome, etc

Bamboo
AwesomeDragon97

Adds bamboo which generates in jungles and can be used as a crafting ingredient.

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.

Startest
Robot10&Scheletor

This mod adds several space stuff to the game.

Wildflower Fields
mzs.112000

Adds a wildflower field biome to Minetest Game.

Easy ores
X-DE

Minetest ores now generate higher up