Godot is a powerful cross-platform game engine
An open-source sandbox tower defense game
UCI chess engine
A simple and easy-to-use library to enjoy videogames programming
A cross-platform PSP emulator
Xash3D FWGS engine
A certain block game
Voxel game-creation platform with easy modding and game creation
Sandbox video game with a powerful physics engine
RetroArch is a frontend for emulators, game engines and media players.
Stream switch games to your PC via USB or network
Turn-based survival game set in a post-apocalyptic world.
Do virtual gear shifting (and more) in any rider app
Open source voxel game engine with support for survival and crafting
Home theater software and entertainment hub for digital media
Desktop/Android/HTML5/iOS Java game development framework
The game engine for everyone
One framework for creating powerful cross-platform games
Open source library for creative expression on the web, desktop, etc.
Netcode that provides networking capabilities to GameObject workflows
Open-source Android/Desktop remake of Civ V
An open source reimplementation of the Among Us Server
Open source HTML5 game framework that offers WebGL and Canvas
A dead simple 2D game engine for Go
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games