Playtime Recorder
Lejo

Use /playtime to get the time you played

Beware the Dark
Ben

Darkness hurts.

Cycle Limit
LMD

Limits hotbar slot switching

Saturation Adjustment
ROllerozxa

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

Mudsling
Avicennia_g

Inverted-direction player slingshot

ServerSay
Truemmerer

Write in the Chat as the server

Last Login Signs
fgaz

Adds signs that show the last login of players that right-clicked them

Account Manager
rubenwardy

Automatically create accounts in bulk, and export to .CSV and .HTML (and .PDF)

Simple Dialogs
Kilarin

Simple Dialogs allows you to add dialogs for npcs and other entities, controlled by an in game text file.

Cross-Section
Silver Sandstone

Cuts the world in half.

Tardis
iarbat

Adds a functioning space-time machine from the tv show doctor who.

J_Mute
j45

Mute players that are spamming.

M.Y.K.O.T.A
Xevin

Adds M.Y.K.O.T.A self-propagating mushroom liveform

Itemstring Viewer
Holly Mae

Displays full itemstring of a held item

YL Matterbridge
AliasAlreadyTaken

Handles chat between Luanti and Matterbridge

Custom Chat Prefixes
Impulse

Adds Custom Chat Prefixes, you can choose a prefix and colour.

Spawners
SaKeL

Adds spawners for mobs, dungeons, temples and ores.

Cloud Items
Panquesito7

Powerful cloud tools.

Warning: Non-free media.

Loot Crates
ElCeejo

Adds randomly spawning loot crates.

Disco trains
sivarajansam

Adds colorful subway trains to advanced trains

Unicode Text
erle

This library can be used to render UTF-8 encoded Unicode text to a texture (e.g. with tga_encoder). It is intended to be used from code that needs to render in-game signs.

Formspec AST
Luke

A library to help other mods interpret formspecs.

Biome Lib
mt-mods

The biome spawning and management library.

Scientifically Accurate TNT
AwesomeDragon97

Fixes some of the shortcomings of the original TNT mod.

VoxeLibre Shader Preset Port
QBSteve

Enable VoxeLibre's shaders preset for other games.

Dreambuilder Game
mt-mods

Dreambuilder is my attempt to give the player pretty much everything they could ever want to build with, and all the tools they should need to actually get the job done.

Mobs Ethereal Bosses
PixelZone

Adds Bosses in biomes from the "Ethereal NG" and "Mineclonia" mods

Magic Materials
mt-mods

A mod providing common resources and shared magic system for modpacks like gadgets_modpack, bweapons_modpack, and possibly others

Travelnet
mt-mods

Network of teleporter-boxes that allows easy travelling to other boxes on the same network.

Rifles
shaft

Adds guns, rocket launchers and grenades.

More TNT
mittelmaessigercoder2

Adds more TNT

Mobs Skeletons
TenPlus1

Adds three skeletons to the world.

VoxeLibre Custom World Skins
covertiii

Add Custom Skins in VoxeLibre

Copper Stuff for Voxelibre
TomCon

This adds copper tools, armor, and decorations to voxelibre.

yams RPG
jara25

An MTG fork with light RPG elements.

Voxel Knights
LandarVargan

WIP Medival Fantasy Open World PvE game

moreblocks and stairsplus
fluxionary

adds various blocks to the game

Lush tetris
rstcxk

Game of tetris written in a custom programming language

Ju52 3M Hydro
APercy

Adds a Ju52 airplane, hydro version

LEEF b3d
fatalerror420

A b3d reader, cloned from modlib. Requires LEEF-filesystem, requires LEEF-Math for nodes module.