Activision’s Call of Duty: World at War: Zombies has arrived on the iPhone, and it features “single player and multi-player co-op modes that supports bluetooth, Wi-Fi and online play.” Available now on the iTunes Store, priced at $9.99. Video after the break.

That means you can match up with 3 other players around the world and play together to defend your building. The gameplay video below shows some of this in action.

[via Toucharcade]