Astraware makes my favorate games, too! BounceOut, TextTwist, BookWorm.
Google for some freeware games, and you can find many neat ones to play, like Cubicle Chaos and Crypt Quest.
Also check out some of the multitude of shareware apps, so you can download and try them out before plunking down the bucks.
Lastly (which I should have mentioned first
) try a search of this site, and look for games. I know there was a recent thread with "Top 5 games" which came up with a good listing.