A certain block game
A cross-platform PSP emulator
Stream switch games to your PC via USB or network
UCI chess engine
Cocos simplifies game creation and distribution with Cocos Creator
The game engine for everyone
Desktop/Android/HTML5/iOS Java game development framework
Voxel game-creation platform with easy modding and game creation
Home theater software and entertainment hub for digital media
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Multi-platform 2D and 3D game engine
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
SDL library for Android, including several games.
3D Engine c++
GemRB is a portable open-source implementation of the Infinity Engine
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
Android, UIQ 3.0, Series 60 Edition 5 open-source software
computer opponent for the board game Blokus
3D modeler, 3D game maker, 3D demo maker
... the open-source glide computer
Old style soccer game with many exciting features
A catalog of free games relative to the Qore World universe.
GameServer is a sophisticated, game server designed for online games
Orx: Data-Driven Game Engine
A promising chess program