Steam has Alan Wake 90% off this weekend. PC Gamer had an article that said it was going on sale because the music license was at an end. So until the publishers can come to an agreement/new license, it will not be sold after the weekend is over.
I quite liked the game myself.
Alan Wake: http://store.steampowered.com/app/108710/Alan_Wake/
Alan Wake Franchise: http://store.steampowered.com/sub/15407/?snr=1_4_4__139
