This game needs Steam to be installed and run. BUT Steam will not allow you to install this game if you're not from the UK!
I repeat, all foreign Steam users CAN NOT install this game.
Steam will just give you this error message when you try to install the physically OWNED game:
> Not Available
> Sorry, but the following items are not available for purchase in this country. Your purchase has been cancelled.
This is neither Steams nor amazons fault, but solely the fault of the publisher THQ!
They did the same thing with Saints Row 2 but eventually stopped this stupid behavior. Why repeat the same mistake and scare customers away? I don't know, but it doesn't matter how good a game is, if you are not allowed to play it.