Quest Framework
TeTpaAka

Simple framework to define quests.

Journal
theFox

Do you want to add story to your game? Make your protagonist write notes into his Journal.

Inventory Change Callback
luarocks

Provide a global callback for handling player inventory changes.

LCD Font
Nazalassa

A simple font for font_api

Library Mount
Panquesito7

API Framework for mounting objects.

Simple Models
AntumDeluge

Very simple models.

Job Control Mod
sorcerykid

A more flexible alternative to the builtin minetest.after function

persistent_monoids
fluxionary

player_monoids that persist between player sessions and server restarts/crashes.

Grenades API
LandarVargan

Adds an API for easily creating grenades

monster_api_gb
Giga_M

add an api to create bosses

NucleoTest
DarkXWolf17

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

hand_monoid
fluxionary

player monoid for controlling the look and abilities of the player's hand.

Seasons Clock
solsword

API for getting various "season" parameters based on server time and a few customiable settings. Doesn't change gameplay; just a library that other mods can use to do seasonal things.

Chatcommand Library
LMD

Library for registering chatcommands.

Sway
lazerbeak12345

A simple inventory that makes use of Flow forms.

ReSpec
ZenonSeth

Easy and Versatile Formspec Creation based on ConstraintLayout

Tasks Framework
AntumDeluge

Framework for adding tasks & quests.

Advanced Fight Library
SFENCE

Library for implementing advanced combat systems with hitbox-based damage and body part health tracking

Item Holders
Jose_ManuelS18

Adds 'Item Holders', blocks that hold your items in display, also provides a API.

More Triggers
SkyBuilder1717

Adds more triggers for Awards

Signs Redux
sorcerykid

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

Lush
rstcxk

fully featured shell interpreter

Multiblock Lib
Mindcool25

Multiblock structure handler

YAML Config File Library
snowyu

Load or Save YAML config file

Autobox
Just_Visiting

Auto Collision/Selection Loading Boxes

Register, Attach & Detach
mzel1982

Register glowing 3D items and custom display nodes that you can easily attach to players, place on walls, or showcase on pedestals.

MFSM Multiple Finite State Machine
Sumi

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

TPH's Basic Filesystem
TPH

API for loading files into a basic readable format as well as loading and converting conf files

Key Binding
1F616EMO

Register callbacks when a key is pressed, holded, or released.

AFK Indicator
1F616EMO

API to check player AFK status

Priority Queue
Wiz

Associate items with priorities to order them.

Advanced Rangefinder
sorcerykid

Extends the API with search capabilities for entities

Function Delayer
Hybrid Dog

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

Select Item
Wuzzy

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

Minetest Teams
pl608

simple multiplayer team system

Advanced Breath and Health APIS
liteninglazer

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

Debugging Console
sorcerykid

Provides an in-game HUD to easily monitor debug output

Doclib
joe7575

A library to generate ingame manuals based on markdown files.

Ediblestuff API
lazerbeak12345

A unified API for making items, tools and armor edible. Eat armor while wearing it!

Player Visibility Api
erov

Easily manage player visibility in a similar way to area protection