A cross-platform PSP emulator
SDL library for Android, including several games.
UCI chess engine
Voxel game-creation platform with easy modding and game creation
Desktop/Android/HTML5/iOS Java game development framework
A certain block game
Stream switch games to your PC via USB or network
The game engine for everyone
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Cocos simplifies game creation and distribution with Cocos Creator
Solar2D Game Engine main repository (ex Corona SDK)
Home theater software and entertainment hub for digital media
Multi-platform 2D and 3D game engine
Open-source engine for Heroes of Might and Magic III
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
... the open-source glide computer
GemRB is a portable open-source implementation of the Infinity Engine
A catalog of free games relative to the Qore World universe.
3D Engine c++
Orx: Data-Driven Game Engine
Android, UIQ 3.0, Series 60 Edition 5 open-source software
GameServer is a sophisticated, game server designed for online games
A promising chess program
computer opponent for the board game Blokus