I want Catpocalypse!!!
Love the concept, I'd totally play this.
You could weave into the storyline somehow why cats love to lay on keyboards - not because of the heat, like humans originally thought, but because cats are all 1337 hackers who understand humans are incompetent with computers and they're trying to save us from ourselves. XD
P.S. A minor note about "Z-Huggers" as a name, with British English it might be pronounced "Zed-Huggers" so may be better to make it explicit "Zee-Huggers"?