WarBirds is a Massively Multiplayer Online and offline World War II simulation, published by iEntertainment Network. The game includes an air combat flight simulator as well as a simulator for tanks and other ground vehicles. WarBirds was originally developed in 1995 by Interactive Creations of Grapevine. and inspired a fan cult and conventions, and a book titled WarBirds: the Story so far. WarBirds III was released for Mac and PC in 2002, and WarBirds: The Mighty Eight was released in 2007. An even more recent version, WarBirds 2008 has been produced and includes tanks, trucks, halftracks, new aircraft including the A-67 dragon, and new graphics.