Hi there,
Long time no see. I finally put together a simple game core with bits and pieces I found on the internet. The main 'contributors' are NeHe and Newton Game Dynamics. The code is not 'professional' quality since it was assembled in my spare time (and I don't have plenty), but it works and can be used as a base for a game. The graphics are in OpenGL, DirectX input for keyboard and joystick is supported and physics is done with Newton Game Dynamics.
Documentation is not yet done as well as sound support.
In my personal site http://sites.google.com/site/xgamescl/ you will find the code.
In order to compile you will PlatformSDk from Microsoft (OpenGL lib) and DirectX SDK for the direct input part.