LootChests Modpack
mt-mods

Modpack adding a lot of various loot containers across the world to be found and providing an API, resources and integrations for other mods

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

Ruined structures
X-DE

Adds ruins to desert, sandstone desert, icesheet, snowy grassland, taiga, rainforest and tundra

Chemistry
Emiliano

A package that adds More Ores and Things

Nether addons
DragonWrangler

adds more nodes and decorations to the nether

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.

Underground Challenge
Hume2

Explore all 62 underground biomes!

Lapis Lazuli
LNJ

Adds lapis lazuli ore, items and blocks.

Generic moon of Saturn
Red_King_Cyclops

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

Lucky Block Ore
ems111

Adds Lucky Block ores to world.

Ancient Ice Stuff
Robot10&Scheletor

Adds a new powerful ore to the game

Magma
SuperStarSonic

Adds volcanoes, lava vents and new magma blocks

Winuser Leafdecay
Liil

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

Valleys Mapgen
Gaël de Sailly

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

My Treasure
Don

Adds treasure chests around the world

Herbs
Clyde

Adds 15 flowers and 6 mushrooms.

Bamboo
AwesomeDragon97

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

Quartz Geodes
AwesomeDragon97

Extends the Geodes mod with quartz geodes.

Ancient Bones
karlexceed

Adds bones with loot to dungeons.

Wildflower Fields
mzs.112000

Adds a wildflower field biome to Minetest Game.

Mob BiomeDb Mapper
Neuromancer

Allows mobs to spawn in biomes that don't support them (Using info from BiomeDb)

Advanced Biome Decoration Modpack
EmptyStar

A collection of advanced biome decorations

Unstable Caves
M BLOC

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

Dirt Tunneler
Neuromancer

Makes dirt deeper and you can tunnel through it just by walking through it. Press spacebar/shift to tunnel upward/downward with auto placed ladders.

Elephant Veins
jan Epiphany

Replaces small, sporadic ore pockets with sparse, gigantic ore veins.

Startest
Robot10&Scheletor

This mod adds several space stuff to the game.

Sun Flowers
Hybrid Dog

This mod generates flowers which close their heads at night.

Zinc
alerikaisattera

Zinc metal, used for making brass

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing

Alien Tools
chaosomnium

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

New Biomes
Arkatron

If you like underground biomes, this thing is for you.

Tac Nayn
GreenXenith

Adds Nyan Cat's evil twin, Tac Nayn (and a gray-scale rainbow).

morebiomes
mzs.112000

A simple mod adding a few biomes to Minetest Game

Beautiful Boulders
regulus

Procedurally Generated Rocks with (pretty) Accurate Collision Boxes

Kitty/Kitto Ores
nemokitty9

Nemokitty9's own ore pack. Includes Tools!

Randomized Map-specific Ores
Piezo_

Adds two randomly created ores to each world with varying properties depending on the world's seed

New Horizons
Hi_World

Adds 4 new biomes and TONS of new blocks!

Fragments
Amaz

A mapgen with a goal, with things needed to advance to the next level.