Solar2D Game Engine main repository (ex Corona SDK)
FPS Unlocker for Roblox
Android real-time display control software
Desktop/Android/HTML5/iOS Java game development framework
Stream switch games to your PC via USB or network
A cross-platform PSP emulator
The game engine for everyone
Memory Efficient Serialization Library
RenderDoc is a stand-alone graphics debugging tool
websocket and http client and server library, with TLS support
Open source Cardboard SDK and samples
LÖVE is an awesome 2D game framework for Lua
Open-source engine for Heroes of Might and Magic III
The open-asset-importer-library repository
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
An open source C++ game engine
Urho3D Game engine
GemRB is a portable open-source implementation of the Infinity Engine
Orx: Portable Game Engine
0 A.D. is a free, open-source, cross-platform real-time strategy game.
Computer opponent for the board game Blokus.
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
A promising chess program
3D modeler, 3D game maker, 3D demo maker
Old style soccer game with many exciting features