[a12ctic]

Ok, your odviosly a linux nooby

First off, ive never used xandros because it costs money and there are better free distros, Distros (distributions) are different versions of linux with different packages, most come with all your basic needs (audio/video codecs, office suit, web browser, some little games). No you can not NATIVLY play those games although you may be able to with a emulation layer which allows you to run windows programs on linux, there are also native commercial games UT (all of them), quake/doom (all of them), Neverwinter Nights, and a few more. I would suggest trying SuSE or Ubuntu to start off sense their freely avalible