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