Alpha Protocol - $2 on Steam
Captain Huggy Face writes that Steam has a Sega special that includes Alpha Protocol for USD$2 (it shows $3 for me, which is presumably my localised price). I'm an unabashed fan of AP but if you have any interest in shootery/stealth action/RPGs, it would be hard to wrong at this price. Valid to September 27th.
Information aboutAlpha Protocol
Platform: PC, Xbox 360, PS3