A Minecraft plugin API
A pure Go game engine
3D game engine/framework in C, with Luajit and Python bindings now
A simple math library for games and computer graphics
Powerful, mature open-source cross-platform game engine for Python
Flax Engine, multi-platform 3D game engine
Homebrew development library for Nintendo 3DS/Horizon OS user mode
Mangos ZERO is a server for World of Warcraft
Svelto ECS C# Entity Component System
An open source reimplementation of the Among Us Server
A lightweight game server framework implemented with Actor Model
Naev is a 2d action/rpg space game, action, rpg and simulation
Community effort to maintain and improve Jedi Academy (SP & MP)
Write your game with TypeScript in UE or Unity
An open source flight dynamics & control software library
Animation Compression Library
A .NET ascii/ansi console engine written in C# for MonoGame and XNA
A fast and reliable entity component system (ECS) and much more
New Godot bindings for Swift
Cross-platform, open source, and super fast MUD client with scripting
RPG Maker 2000/2003 and EasyRPG games interpreter
A game framework written with osu! in mind.
Access GameLift resources and integrate GameLift into your Unity game
A Steam library categorizing tool
The solution that allows unity games update in runtime