If you want to polarise a room, start playing The Darkness II. Half the populace will take one look at your demon arm burrowing about in a mobster’s squishy bits and leave the room – and your life, forever. The other half will form a crowd. They’ll suggest the next way to kill a guy. They’ll savour every execution and gaze in awe as you quad-wield a pair of Uzis and a pair of nightmarish killer-tentacles. These people are hardened gamers, and they’re transfixed because the eponymous ‘Darkness’ is the primal urge that lives inside every shooter fan.