The Free Thread *gaming related*

[Psychospacecow]

Its a joke. I don't know about your area, but it was a common joke to call fans of pop stars zombies in my area. (just a petty joke to express disdain in other people having opinions)
Now for the others, Metro 2033 has radiation zombies I think, Scribblenauts has either infection or traditional zombies, and Borderlands 1 had a dlc where zombies raised from the grave.