moreblocks and stairsplus
fluxionary

adds various blocks to the game

Tubelib2
joe7575

A library for mods which need connecting tubes / pipes / cables or similar.

Home Point
ApolloX

A /sethome and /home

Mana
Wuzzy

Adds a mana attribute to players, can be used as energy source for magical items, etc.

Geodes Library
alerikaisattera

API/library for creating geodes

Skills API
giov4

An API for creating skills.

markdown2formspec
Just_Visiting

A markdown to Formspec Utility

Natural slopes library
karamel

Library to simply add slopes to regular nodes and include them on map generation and when changing the landscape.

Magma Conduits
FaceDeer

Removes default mapgen lava and adds widely-spaced vertical lava "veins".

Luamap
MisterE

An easy-to-use api for lua mapgens that takes the pain out of mapgen coding. Focus on mapgen logic, not on voxelmanipulation.

Advtrains Info Displays
Nazalassa

A library that uses font_api to render text outside Advtrains trains. Supports several displays per wagon.

In the Fog
Jo5629_

Herobrine has entered your world.

Geodes
AwesomeDragon97

Adds amethyst geodes and an API for making custom geodes.

advtrains_attachment_offset_patch
doxygen_spammer

Workaround to mitigate Minetest bug 10101, specifically for advtrains

Regrowing Fruits
philipmi

Fruits on trees from various mods will regrow.

Custom Falling Nodes
TenPlus1

Tweak falling blocks to add custom controls

Vote
rubenwardy

Adds an API to allow players to vote

Commodity market
FaceDeer

Provides API support for various in-world commodity markets

Advanced Biome Decoration API
EmptyStar

An API for creating advanced, complex biome decorations

Zero-Effort Custom Minerals
Piezo_

A tool for registering entire materials, complete with ore generation, tool-sets and automatically generated sprites with almost no effort required

FireWorks Reimagined
DragonWrangler

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

Fireworks Redo
niwla23

Adds some better looking fireworks

Phonograph
1F616EMO

Play music from albums

Treasurer
Wuzzy

A framework to define and distribute random treasures into the world.

Power Rangers Modpack
LC Creations

Adds power rangers and an API to create your own.

Calendar
Wuzzy

A simple calender system to track the passage of days

Named Waypoints
FaceDeer

A library for managing waypoints shown in player HUDs that can be discovered by exploration.

Ranged Weapon Framework (rawf)
LandarVargan

A ranged weapon framework for Minetest

Debug
LMD

Debugging on steroids

Node Touch Action
Neuromancer

Pass in a node name and a function, and every time a player touches that node, the function happens

Epic
BuckarooBanzai

Enhanced Programmer for Ingame Control

Filled Bottles
EmptyStar

Filled bottles for Minetest Game and other supported mods

Placeable Buckets for Catching Rainwater
Noodlemire

Allows empty buckets to be placed as nodes in order to collect rainwater.

ASCII Art Schematics
Warr1024

Manage Minetest schematics as ASCII art.

Sounds
AntumDeluge

A set of free sounds & API.

Name Generator
FaceDeer

A lua library for generating random names based off of rulesets and syllable lists.

country_lib
Zughy

small util library providing country localised names and flags

mod utilities
theFox

Providing some utilities that can be used by other mods.

Slope Lib
epCode

A lib that calculates the average 3d slope of surrounding nodes from a position and raduis.

SkillsFramework
domtron vox

SkillsFramework provides an API for creating and managing skills.