GOG is selling Alan Wake and its DLC American Nightmare for about half of what Steam is charging, and will go even lower if you purchase them together.
http://www.gog.com/en/promo/alan_wake_series_gem_promo/
Separate
Alan Wake: $14.99
American Nightmare: $7.49
Together
Alan Wake: $10.19
American Nightmare: $5.09
Now that's a deal.
http://www.gog.com/en/promo/alan_wake_series_gem_promo/
Separate
Alan Wake: $14.99
American Nightmare: $7.49
Together
Alan Wake: $10.19
American Nightmare: $5.09
Now that's a deal.