Mangos ZERO is a server for World of Warcraft
A cross-platform PSP emulator
Voxel game-creation platform with easy modding and game creation
A certain block game
Pokémon Save File Editor
Desktop/Android/HTML5/iOS Java game development framework
A simple and easy-to-use library to enjoy videogames programming
Xash3D FWGS engine
Stream switch games to your PC via USB or network
UCI chess engine
Open source cross-platform multi-purpose game toolkit
An open source reimplementation of the Among Us Server
Netcode that provides networking capabilities to GameObject workflows
One framework for creating powerful cross-platform games
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
The game engine for everyone
Powerful, mature open-source cross-platform game engine for Python
Home theater software and entertainment hub for digital media
The source code to VVVVVV
Open-source engine for Heroes of Might and Magic III
Cocos simplifies game creation and distribution with Cocos Creator
Solar2D Game Engine main repository (ex Corona SDK)
A pure Go game engine
New Godot bindings for Swift
Multi-platform 2D and 3D game engine