I do not mean to hijack, but I have a similar question. I bought a two copy pack for my wife and I to play. I do not mind steam and she would not have a steam account. Can I get to on steam and one on gog and we will be able to play together? WIll Mac/PC be able to play together? Would it be better to just get both on gog to play together? Would it be better to get both on steam, set her up with steam to play together?