You do realize that not all DRM has to be the same, I suspect Valve had a hand in creating the DRM for this game.
I wonder if anyone else in snake's group can play the game or if it is locked to the 1st system that has played it.
Can you play it now or is it the same screen that you had before.
He's on and I just quit and ran the game again and i was able to boot it up.
Seems like we're both able to play at the same time...