[Multiple images] FPS (First Person Shooting Games) Recommendations under Linux

In Linux, large FPS (first-person shooter) games are not uncommon, but once you open them, they all seem like colossal giants. Oh, and when you walk around and turn, I get dizzy after just a little play, and feel nauseous after a while. But looking at something that at least resembles a person feels more reassuring psychologically; when you fight and kill, it feels satisfying, truly evoking a sense of atmosphere and meaning (though it somehow feels like being a sadist). CS is one of the more common shooting games on Windows, so can it be played on Linux? Of course, it can.