moreblocks and stairsplus
fluxionary

adds various blocks to the game

Yourland Speak up
Sokomine

NPCs deliver speeches

country_lib
Zughy

small util library providing country localised names and flags

arena_lib
Zughy

Library to create any mini-game you have in mind

MQTT Client Library
Tuxilio

A mod for MQTT communication

Skills
giov4

An API for creating skills.

ConfigFileLibrary
Tomlaus

A library that allows loading and saving data from config files.

CoreAnim
SpacingBat3

Interpolated animation modpack, using Luanti 5.9+ API with backwards compatible syntax.

Computing
Lunovox

Add multiple computing devices such as: Smartphones and Desktops. It supports several apps integrated by other mods.

Item Help
Wuzzy

Adds automatically generated help texts for items.

Documentation System
Wuzzy

A simple in-game documentation system which enables mods to add help entries based on templates.

Filled Bottles
EmptyStar

Filled bottles for Minetest Game and other supported mods

TGA Encoder
erle

A TGA Encoder written in Lua without the use of external Libraries.

aSignals
Sumi

Signal event bus API including SIGNAL, LISTEN and CONDITIONAL functions

Collectible Skins
Zughy

Wear and unlock skins

AoM Settings
Sumi

Provides methods for both player level and server level settings

Advanced Trains
orwell

Adds good-looking, realistic trains with realistic rails.

flinv
Luke

API to add new inventory tabs which work across different inventory mods

Flow
Luke

A formspec library that automatically positions and sizes elements

FireWorks Reimagined
DragonWrangler

A fireworks api to allow you to easily add new fireworks to your server or game.

CS:MT (BlockAssault)
Logikí

A first person shooter game with multiple features

i3
mt-mods

A next-generation inventory

CSMT Bots (Obsolete)
Logikí

Add bots to your game for training