mrkgnao: Can someone who has the Steam version explain what is the difference between GOG's version and Steam's, if any?
GOG version doesn't check for ownership, and you can create online accounts on different computers. In that respect, there's no "proper" DRM.
That's where it ends.
A good chunk of the game is locked behind online activation (again, it doesn't check for ownership), so, in essence, what we got here is a very expensive shareware version. I'm certain a blue will defend this as still being DRM-free, but at this point they'll be playing with words.
Huge disappointment,