Users who bought the game will still be able to play it.
Remedy Games announced on Twitter that due to the expiring of music licenses, a problem of the digital era, Alan Wake will be removed from digital stores after May 15.
— Remedy Entertainment (@remedygames) May 12, 2017
Just to make sure, Alan Wake will be removed from digital stores (Steam, Xbox Live,…), but you’ll be able to downloaded it if it’s in your library. As for Alan Wake: American Nightmare, the game will still be available on the digital stores.
Alan Wake is available for PC and Xbox 360.