Here's a shiny, updated list of our Top 10 Co-Op Games of all Time.
Call of Duty: Black Ops
There's no campaign co-op in Call of Duty, and it wouldn't surprise us if there never was, but Black Ops carves a space on the list with its four-player Zombies mode. Despite plenty of fiddly mechanics and a multitude of map-specific features, Zombies has become enormously popular - its dense layouts and complicated maps must be hitting the right chord. The mode has been so successful Activision even released a Zombies-only DLC pack last month.