A newly updated registry lists the XBLA title for Steam.
Alan Wake's American Nightmare will soon be getting a PC release. The newly updated registry list for Steam has the Remedy game included in its database, pretty much confirming the title will be available for the platform at some point in the future.
Submitted for your approval: the story of a man fighting against the darkness.
American Nightmare is a smaller, more action focused entry in the series. The backdrop for Wake’s new tale is far removed from Cauldron Lake in the first game, and instead moves into the desert of Arizona. Wake is on the trail of Mr. Scratch, the darkness-created doppleganger featured in the two DLC episodes for Alan Wake: The Signal and The Writer.