The religion has nothing to do with the truth. In some aspects StarWars is a religion but NOT the truth ! Jesus Christ is The Only Truth ! And NO Force can't change that !
Worth noting that hardcore games that were made for GNU/Linux run just as fine, if not better, than they run on Windows. It's just a question of popularity. Most games are still made for Windows, though more games are being made for gaming consoles these days.
A couple of great Linux games I can recommend are: Ryzom, Super Tux Kart, Nexuiz/Xonotic, Warsow, Hedgewars, Humble Bundle indie classics such as Aquaria, Osmos, Braid, etc., and of course Steam and Desura games that have been actually compiled for Linux (and not wrapped in WINE).
