Also on Steam, Eschalon Books 1 & 2 are 75% off as well, and buying both comes to about $6. These are old-school cRPGs, much like Spiderweb Software's games. Very good stuff, and there's a demo available so you can try before you buy.
Here's the trailer for Eschalon Book 1, although the video quality is a bit rubbish:
Last Edit: Jul 13, 2012 14:40:46 GMT -5 by Feynman