While I'm a massive heavy metal fan, I doubt anybody would put one of your songs into their games. It's not that you guys don't sound absolutely amazing (had a small eargasm), but extreme music isn't very popular by any means. If I made a game, I would put your music in immediately (maybe throw in some Dawn of Demise xD).
Unfortunately it takes a specific taste in music to listen to extreme heavy metal and not think it's a bunch of screaming and random ri*******e. Perhaps talk to BerserkStudios though. They have been known to use heavy metal in their games, and would be your best bet.