I don't know if this game is available on PC or what consoles it's coming on... But I downloaded the demo from XBL last night. It's hard for me to express my feelings for it. It uses Half Life 2's Source Engine. It's not very pretty. But after putting 10 minutes into it and getting a level up or two. You really start to use your powers and experiment in the game. I loved the demo. I really did. I'll be getting this when it comes out.