Retro roguelike Cardinal Quest is free today:
DIYGamer has details of freebie offer
http://www.diygamer.com/2011/10/cardinal-quest-free-today/
Main site
http://cardinalquest.com/
The web-browser demo was a lot of fun. Reminded me of some old games. Cheers for the heads up!
Promo over per BT Micro.