More Triggers
SkyBuilder1717

Adds more triggers for Awards

Function Delayer
Hybrid Dog

Allows executing functions after a delay to reduce possible lag (EDD scheduler?)

more_player_monoids
fluxionary

more player monoids

NucleoTest
DarkXWolf17

Battle Royale-like game. Provides an API and a reference implementation. Highly radioactive. Work in progress.

Signs Redux
sorcerykid

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

Interactive Item API
Jose_ManuelS18

Provides an API to make it easier to implement items' inner workings.

flinv
Luke

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

Sway
lazerbeak12345

A simple inventory that makes use of Flow forms.

Loot
Byakuren

A loot framework.

balanced diet
fluxionary

api for specifying multiple dimensions to eating

Node Damage
Noodlemire

Enables nodes to be partially damaged, and to be repaired afterwards.

Vision Lib
mt-mods

Common library for PolySaken's mods.

Minetest HTTP API QoS control queue
SX

Improve quality of important HTTP requests by grouping requests into service quality buckets.

Phonics Library
Neuromancer

Provides a library for creating Phonics (Learn how to read) mods in different languages.

Shop Dialog
1F616EMO

Formspec-based shop dialog

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing

Level API
Hypernoot

A library for games to load levels defined as schematics

YAML Config File Library
snowyu

Load or Save YAML config file

item_monoids
fluxionary

an API for controlling item properties via monoids

SmartFS
rubenwardy

A library to allow mods to make Formspecs, a form of GUI, easily.

rcsv
Wuzzy

RFC-4180-compliant CSV parser and writer

toolcap_monoids
fluxionary

an API to allow multiple sources to apply changes to a tools's capabilities.

HTML to Luanti Hypertext
1F616EMO

Convert HTML to Luanti Hypertext for formspecs

CentralAuth
1F616EMO

Player account unification across Luanti servers

Old Wizard Font
Pyrollo

OldWizard font for Font API

Quest Framework
TeTpaAka

Simple framework to define quests.

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.

action queues
fluxionary

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

Echo
1F616EMO

In-game notification system

Tasks Framework
AntumDeluge

Framework for adding tasks & quests.

Discord Bridge
Lesha_Vel

Mod + external program providing Discord relaying and commands. This is a fork of discordmt by archfan7411

NameGen
cronvel

Name generator API.

Archipelago Library
Warr1024

Archipelago multi-world randomizer integration library

Item Tracking
Impulse

Provides a API to mod developers to track which inventories items are in.

Debugging Console
sorcerykid

Provides an in-game HUD to easily monitor debug output

YALib
hutzdog

Yet Another Library

imfs
Signal_

An immediate-mode, functional, reactive abstraction around Minetest's formspec system.

filter++ lib
rstcxk

provides an API for filtering text

Stent
AFCM

A formspec based arena entrance type for arena_lib

Extended Protection
1F616EMO

Extended interaction restriction rule