Advance ore API
Sere Motsatt

Create complex minerals the easy way

Advanced Breath and Health APIS
liteninglazer

Creates APIS to allow different players to heal health and allow different players to breathe different items.

Persistent Effects
epCode

An API for creating persistent effects for any object. eg. damage a player or entity over time. (like poison)

PostgreSQL Library
Tomlaus

Library for PostgreSQL Db.

Echo
1F616EMO

In-game notification system

node entity queue
fluxionary

a queue for spreading out the generation of node entities over multiple server steps (smartshops, signs, itemframes, etc).

Job Control Mod
sorcerykid

A more flexible alternative to the builtin minetest.after function

Random Messages
1F616EMO

Register random announcements

Guider
1F616EMO

HUD markers for navigation

Position listeners library
karamel

Players' position observing library

Multiblock Lib
Mindcool25

Multiblock structure handler

Operating System Detector
TPH

Checks the OS of the device running the mod.

MFSM Multiple Finite State Machine
Sumi

Allows for multple states to be active, while maintaining typical state machine behavior. Good for gamestate and mobs.

Anti Exploit
LMD

Protects against exploits

more_player_monoids
fluxionary

more player monoids

DeltaTime
SkyBuilder1717

Adds deltatime API

Advanced Forceload
Kimapr

a better forceloading API

Minebase Core
ThatCommand

Adds APIs and new dynamic functionalities.

Sway
lazerbeak12345

A simple inventory that makes use of Flow forms.

Smart Vector Table
Noodlemire

API that adds a way to create tables indexed by 3D Vectors.

Select Item
Wuzzy

Allows other mods to add a simple form to choose a single item.

Stent
AFCM

A formspec based arena entrance type for arena_lib

HTML to Luanti Hypertext
1F616EMO

Convert HTML to Luanti Hypertext for formspecs

Compression Lib
The4spaceconstants

A library that provides functions to procedurally register compressed versions of nodes.

CentralAuth
1F616EMO

Player account unification across Luanti servers

Signs Redux
sorcerykid

Signs Redux is a complete rewrite of default signs that adds many new features

Cid Music Player
ekl

Plays music

anarchy
solsword

Anarchy PCG library (see https://cs.wellesley.edu/~pmwh/anarchy/lua/ w/ docs at https://cs.wellesley.edu/~pmwh/anarchy/lua/docs32/index.html)

filter++ lib
rstcxk

provides an API for filtering text

description_monoids
fluxionary

API to allow multiple mods to make modifications to an itemstack's description

action queues
fluxionary

provides an API for queuing things for batch processing w/ various ways to specify the batch "size".

Player Settings
1F616EMO

Player-specific settings

Timed World Modifiers library
karamel

Environmental ABM that could be triggered on a very wide range of nodes but only a few at a time.

flinv
Luke

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

YL Ticker
AliasAlreadyTaken

Displays messages once per timeframe

Mapsync
BuckarooBanzai

Synchronize the ingame map with a lua-backend

Dialog Redo
1F616EMO

Flexable dialog API

Minetest Teams
pl608

simple multiplayer team system

craftsystem
fluxionary

craft registration API which automatically deals w/ replacements

Tips
1F616EMO

Send tips to newcomers