Although it's not strictly gaming music, you are welcome to burn a few tracks from "Divine Intervention" <http://www.filk.biz/divine.html>.

I understand through word-of-mouth that many of the songs have been used as background music for gaming (e.g. "Temper of Revenge", "Crimson and Crystal", "Survivor's Song", etc.)

In the likely event that you don't already have the CD, reply to me privately (eli at prometheus-music.com) and I would be happy to send you an MP3 download URL.