I just saw a preview for THE LAST OF US, a game that seems to follow the same basic outline as THE WALKING DEAD, right down to the male protector guarding over a younger female sidekick/companion. Seriously, it could almost be a sequel to the Telltale WALKING DEAD, starring a teenage Clementine:
The developers are refusing to call it a "zombie game", but the fact is, if your game features infectious monsters who seek to eat/contaminate you, then for all intents and purposes, it's a zombie game. You can try to pretend otherwise by introducing a little variety to your monsters (i.e. "these aren't zombies, they're fungus creatures!"), but it still adds up to the same basic scenario.
I wonder if there's something to be said about the imagination of the video game industry when they appear to be stealing from the same story template. The innovation seems to lie more in the gameplay than the originality.