More reasons for THQ to count their cash and keep on smiling: open-world hammer sim Red Faction Guerrilla has sold over a million copies since it launched early last month.

And good for it! While the game has its problems with AI and endless spawning, the physics engine and emphasis on demolitions have made it one of my favourite games of 2009 so far.

That's obviously only counting the PlayStation 3 and Xbox 360 versions, since the PC edition is, well, not out yet. It'll be out in September, and should contribute nicely to that figure.