Forgotten Destruction is a free real-time strategy game developed using the Simple DirectMedia Layer. It focuses on the conflict between an evil shadowy empire and human race with their nearby allies.
Pizza Business is a game written in object-oriented C++, utilizing WxWindows, in which you start and control a pizza business / pizza restaurants, limited to a budget. The game is being targeted for multiple platforms including Windows and Linux.
XNova-Reloaded is a browsergame which is written in PHP.