I bought this on Steam as well figuring it wouldn't have the copy protection, but I haven't installed it yet so I can't confirm or deny. This did get me looking for Chaos Theory as well since it's the prequel and I haven't played that either. After surfing the interwebz a bit I was scared off of CT by the reported copy protection. Anyone have any advice/ideas if I want to pickup and play CT without sacrificing my computer? I guess I could just pickup the Xbox version, but I'd prefer to play on my PC (my kids don't give their old man much time on the consoles).
I did finally install this the other day. I haven't played it yet, but my computer didn't implode after installing it. I assume Steam has their own install process that strips out all the crap from the original install. Steam itself is the copy protection, afterall.