Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
A cross platform Lua based game engine
Free and Open Game Programming Language for Windows and GNU/Linux
computer simulation for my raspberry pi
Cross platform Game Creation Software
Multi-threaded 2D Renderer licensed under the Mozilla Public License
A mobile tower 3D tower defense/defend the flag game
cross-platform 2d game engine
easy programming language for 2d games