Debugging Console
sorcerykid

Provides an in-game HUD to easily monitor debug output

Key Combos
epCode

A lib for adding actions when certain keys are pressed in order.

Stopwatch
sorcerykid

Stopwatch is Lua-based benchmarking API for Minetest developers

Quest Framework
TeTpaAka

Simple framework to define quests.

Test Harness
IRI

Provides an automated testing framework by simulating player behavior on a server. It allows developers to create, register, and run tests to their packages

Oddly Sized Checkerboard Testnodes 2
erle

Adds oddly sized checkerboard test nodes.

Modding Commands
DragonWrangler

Adds Hopefully helpful commands for modding

Minebase Core
ThatCommand

Adds APIs and new dynamic functionalities.

Chromakey
SkyBuilder1717

Adds an chroma blocks for videos or photoshop.

Ambience API
1F616EMO

API for playing background musics

Luarocks Wrapper
lazerbeak12345

Securely Wrap Luarocks packages without needing trusted mods.

Minetest Systemd (API)
Piezo_

Debugging utility and compatibility tools for server owners and/or modpack creators

Riddance
Blockhead

Hide or rid yourself of unnecessary items from games and mods without any code

Pluggable Helpers
sorcerykid

Automated dependency management of helper functions within a distributed architecture

DeltaTime
SkyBuilder1717

Adds deltatime API

typeof
TPH

Provides functionality similar to Luau's "typeof" function

player actions
GigaByte

shows the actions of a player

Basic HUD textures
Wuzzy

Adds basic but neccessary HUD images: Heart icon, bubble icon, … (for game authors)

Benchmark Engine
theFox

Engine for running benchmarks ingame.

Glob Patterns
1F616EMO

Use glob patterns in Lua and in serveral commands

Wishful
mt-mods

Fully CC0 Base Game