(Disclosure: This site contains product affiliate links. We may receive a commission if you make a purchase after clicking on one of these links. Read our affiliate disclosure for more info.)
GamersGate / GamersGate has put Neverwinter Nights 2 (for Mac) on sale for 95% off. This could be a price mistake or it could just be a really good deal.
Again, this is for the Mac version of the game.