Isogen
BuckarooBanzai

Generate isometric images from ingame builds

Appliances API
SFENCE

API for create appliances in other mods powered by technic, mesecons or hand.

Elepower
IcyDiamond

A wide variety of useful machines

typeof
TPH

Provides functionality similar to Luau's "typeof" function

Mapsync
BuckarooBanzai

Synchronize the ingame map with a lua-backend

AirUtils
APercy

A lib for airplanes and some useful tools

Dungeon loot chests
X-DE

Adds loot chests, a command to prevent spawning loot in the chest so you can save a schematic with a loot chest, adds 2 functions to create loot in other chests

Advanced Trains
orwell

Adds good-looking, realistic trains with realistic rails.

Melterns
IcyDiamond

Create unique tools from different materials!

CentralAuth
1F616EMO

Player account unification across Luanti servers

Visible Wielditem
LMD

Shows your wielditem

Pova
TenPlus1

Gives mod makers a set of functions to safely apply player physics overrides.

Custom Falling Nodes
TenPlus1

Tweak falling blocks to add custom controls

Libox
frogTheSecond

A sandboxing library

X Spawners API
SaKeL

Primarily adds an API for registering spawner blocks for other mods to use.

Squill
Luke

A subset of SQL. No complex installation required.

More Triggers
SkyBuilder1717

Adds more triggers for Awards

Skyblock: Zero
zanderdev

Start from absolutely nothing in a skyblock world. Time is your resource.

Fluid Container API
IcyDiamond

Library for nodes containing fluids