"It often gets me when a lot of people say there are no good Linux Games. That depends on what you consider “good” in the first place. Do you like shooters, Real-Time Strategy, or RPG? It all depends. Sure, you can’t play some big titles like Command and Conquer RA: 3, but there are plenty of options such as games through Valve’s exceptional Steam service. I did a little hunting and testing, and came up with what I thought the Top 10 Linux games were to me. Keep in mind this is just my opinion. They are in no particular order. There are some games, especially in the RPG section that are free at first, but require a paid subscription to access more features, just like any RPG that’s very popular."
http://www.linuxcauldron.com/?p=669