PS3 controller should work on some games (for me, it worked on Metal gear solid 1 and 2 for example). If you have the usb program that activates it. If you do and it should work, make sure your ps3s power is shut down (red light off) so that you wont remotely switch the console on. If this happens, the controller stops working on the pc for until you shut down your ps3 and/or restart your pc. I've gone thru issues, where the controller stops working on PC, so I'm just using my keyboard