Zombies, eh? You can’t live with them, you can’t live… well, you know what I mean. It’s funny to think how crucial a mainstay of the gaming medium the groaning, slavering undead have become in recent years. Whether they are the slow or the fast variety, they’re everywhere, clutching and clawing, scratching mindlessly, mouths agog and leaking out glottal moans; or pegging it after moving cars like decomposing Usain Bolts, flailing their limbs and yowling. From Ghosts ‘n Goblins to a cameo in the children’s animation Wreck-It Ralph, zombies pop up all over the place, and even made the numb-skulled Call Of Duty almost bearable.…