No, that was the pack-in game with later models. Not as common as the other pack-ins (combat and pac-man) they're still commonly used as doorstops here in the States.
I thought Dawn of the Dead was a hack of Worm War I.
Anyway, I've been looking through horror games for the Atari, and I ran across this game I've never heard of before on Gamespot:
A larger image can be found here. The full Gamespot gamespace is here.
Does anyone know what that game is? I've never heard of it before.