Godot is a powerful cross-platform game engine
A simple and easy-to-use library to enjoy videogames programming
Xash3D FWGS engine
UCI chess engine
Do virtual gear shifting (and more) in any rider app
Desktop/Android/HTML5/iOS Java game development framework
RetroArch is a frontend for emulators, game engines and media players.
One framework for creating powerful cross-platform games
The game engine for everyone
Home theater software and entertainment hub for digital media
The source code to VVVVVV
Open source HTML5 game framework that offers WebGL and Canvas
Multi-platform 2D and 3D game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
An iOS & tvOS Frontend for Multiple Emulators
Netcode that provides networking capabilities to GameObject workflows
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Cocos simplifies game creation and distribution with Cocos Creator
A dead simple 2D game engine for Go
An open source reimplementation of the Among Us Server
Action-adventure game originally released in 2013
Cross-platform game engine in Rust
Open source library for creative expression on the web, desktop, etc.
New Godot bindings for Swift