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