An open-source sandbox tower defense game
Sandbox video game with a powerful physics engine
Stream switch games to your PC via USB or network
UCI chess engine
Desktop/Android/HTML5/iOS Java game development framework
Godot is a powerful cross-platform game engine
A simple and easy-to-use library to enjoy videogames programming
One framework for creating powerful cross-platform games
A cross-platform PSP emulator
RetroArch is a frontend for emulators, game engines and media players.
Open source cross-platform multi-purpose game toolkit
Open source voxel game engine with support for survival and crafting
Home theater software and entertainment hub for digital media
Fast and lightweight JavaScript game engine built on WebGL and glTF
The source code to VVVVVV
Open source HTML5 game framework that offers WebGL and Canvas
An iOS & tvOS Frontend for Multiple Emulators
A habit tracker app which treats your goals like a Role Playing Game
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Free, open source game engine online
An open source reimplementation of the Among Us Server
The game engine for everyone
Solar2D Game Engine main repository (ex Corona SDK)
Netcode that provides networking capabilities to GameObject workflows
The AWS GameKit Plugin for Unreal