From the PCGamer blog http://www.pcgamer.com/
"So we installed on one machine, then uninstalled and installed on another with no problems. So far, so good. I got in about an hour of play time, but I do the majority of my game playing at home, where I've got my heavy-duty gaming rig set up, so I was really looking forward to bringing it home with me. I uninstalled the game from my work machine and happily headed home...but when I got there and went to activate, I was stopped dead by a failure message that informed me I'd installed with this code one time too many. What... the... $%~&!"
This DRM is NOT mentioned on the packaging of the game, or the EULA. How far do they think they can push their paying customers when they pull crap like this?