I tend to play only FPS and RPG games.....For Doom/Quake type dark games like that (if you don't want to listen to the often freaky music) usually some electronic/ambient type stuff works good, like old Stabbing Westward, Mortal, or Dargaard. Duke Nukem on the other hand........either Running Wild or Rhapsody. Technical death is pretty good for the newer shooters like Halo and Half Life, e.g. Death, Extol, Cynic. RPG's it usually doesn't matter, for me. Maybe some Stormwitch would do good, or Dream Theater.