I was listening to the PC Gamer podcast in which they interviewed this game's producer. I'd just like to say that this interview has pushed me to purchase the game. What interested me most was the bit about the copy protection: The fact that you guys did not hinder the game with DRM definitely made a sale with me. I have wayyyyyy too many games to play right now, but the makers of this game deserve a pat on the back for not only (what sounds like) an amazing game, but for not treating paying customers like criminals.
So, thanks. I will be purchasing this game shortly, and I am encouraging my game-playing friends to do so as well.