If you thought the Linux gaming world consisted of nethack, pp-racer, BZFlag, and well... fortune, you were wrong. Here's some next-gen Linux games that'll definitely make some waves:
I used to be fairly into Total Annihilation back in the day. It was one of the last real-time strategy games that I really spent a lot of time with. Well, someone has created a fully 3D RTS engine who's current goal is to run the content from Total Annihilation. In other words, it's a 3D remake of TA.
GalaxyMage is a turn-based 3D tactical RPG game (oops, "role-playing game game" - thanks for the correction) that's looking awfully cool, awfully fast.
Why does it rock?
Full Story  with screenshots.