I own the standard version on PS4 and later bought the DLC bundle once I had the money, It's nice being able to have a PC copy HOWEVER I wish the offer would also check if you own the DLC and not just the GOTY edition. If you didn't pay for everything up front and just got base game when it first came out, that's all you get on PC. I'd love to play it modded with improved graphics and such but I am NOT paying for the DLC again.
