For when bookworm just ain't cutting it anymore...
MarbleBlast(think monkey ball), MoonPod Games's StarScape (think arcadey starcon2 perhaps?), PomPom Games has Mutant Storm and Space Tripper up for grabs.
Small Rockets has recently released UltraAssault which looks suspiciously like Zone66. Also check out their other games, there are heaps of them. A Tale in the Desert appears to be a MMORPG.. where you can't kill anyone. Instead you work with other people to build stuff. It got 8.9 over at IGN. Lastly I'll point out 21-6 who have some good games as well.