The Zenipex Library is a game development framework, created with the goal of allowing someone with some knowledge of C++ to create 3D games for platforms including Windows, MacOS X, and Linux. OpenGL and Direct3D 9 are both supported.
Meta plugin for FAR (www.farmanager.com). It let developing of plugins for FAR in .Net. Also contains new plugin API (farlet API), farlets engine (to host farlets) and farlets manager (to manage farlets).