VoxelForge - Breaking Changes soon.
VoxelForge

Build, Fight, Mine, and so much more. A MineCraft Inspired game, focused on being fun, adding good features that Mojang decided against using, and being performant

Biome Lib
mt-mods

The biome spawning and management library.

Volumetric Lighting
ROllerozxa

Enable Volumetric Lighting for any game

WhyNot?
bell07

Aims to get all existing high quality mods working together

NodeCore ALPHA
Warr1024

Early-access edition of NodeCore with latest features (and maybe bugs)

Caverealms
HeroOfTheWinds

A mod for Minetest to add underground realms.

Regrowing Fruits
philipmi

Fruits on trees from various mods will regrow.

Farming Flood
AFCM

Makes all plants floodable

Magma Conduits
FaceDeer

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

Fireflies
Shara

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

Cozy Lights
SingleDigitIq

Early alpha. Improves the way light sources(torches etc) behave and allows to create huge lights, literal projectors with just a mouse click, light map will be computed for you.

Fireworks Redo
niwla23

Adds some better looking fireworks

Stone Age Integration Pack
csirolli

Adds basic stone age & survival tools and makes the start in the world harder

Visible Sneak
niwla23

A mod to make sneaking visible. The player gets smaller on sneak and the viewpoint is lower.

NextGen Bedrock
StarNinjas

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

Sapling Spawn
karlexceed

Spawns tree saplings

Fallen Nodes Redo
csirolli

Makes dirt, cobble, snow, straw and cactus nodes fall. Fork of Hamlet's fallen_nodes. May be destructive to existing worlds.

Orbs Of Time
FaceDeer

A mod containing magical orbs a player can use a limited number of times to change the time of day

Raining Death
aether123

TNT Rains from the Sky

3d ores!
Soundwavez

a slick new take on the default ores!

Oxidizing Copper
StarNinjas

This mod aims to make copper/bronze more realistic by making them slowly oxidize into a bluish/green block when exposed to water.

Minetest 2D
AiTechEye

Transforms the minetest world into 2d dimension

Perma Time
_Xenon

Allows players to have permanent day/night without changing the game time.

Custom Falling Nodes
TenPlus1

Tweak falling blocks to add custom controls

Lava Ore Gen
Coder12

Makes the lava turn stone into ore over time.

Luscious
sofar

Bring color into the mgv7 mapgen world.

Sedimentology
sofar

A mod that adds realistic erosion and degradation of rocks.

Swamps
Hybrid Dog

Adds swamps

Epic Combat
hilol

Fight your enemies with various weapons and protect yourself with distinct sets of Armour, whilst sharpening your skills in PVP and PVE.

Placeable Buckets for Catching Rainwater
Noodlemire

Allows empty buckets to be placed as nodes in order to collect rainwater.

Tides
markthesmeagol

Adds tides, WARNING: will delete water sources above sea level

Worldedge
Don

Teleports the player to the other side of the world when they reach the edge.

After Earth
AiTechEye

The earth's ecosystem has collapsed, and there are no biologically environment left.

Random Cool
pl608

Adds random ores on lava cool

Sailing
cakenggt

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

Pedology
Wuzzy

Adds some different ground blocks in several wetness levels; the wetness slowly flows downward.

Saturation Adjustment
ROllerozxa

Adds a chat command that allows you to adjust the saturation of the graphics.

Epic
BuckarooBanzai

Enhanced Programmer for Ingame Control

Sounds
AntumDeluge

A set of free sounds & API.

Clump Fall Nodes
Noodlemire

Makes most nodes able to fall without enough support.