Zone of the Enders

Zone of the Enders, also known as ZOE, is a videogame developed internally and released by Konami in 2001 for the PlayStation 2 console. It was produced by, and is closely associated with, Hideo Kojima. The game is based around mecha combat.

ZOE was initially released in most territories with a demo version of Metal Gear Solid 2: Sons of Liberty, the second installment of Hideo Kojima's popular stealth-based action game. Because of this association, initial sales figures could be counted as misleading; many buyers simply wanted the demo. A great many copies of ZOE appeared on "pre-owned" shelves of major gaming stores when the full version of Metal Gear Solid 2 was released.

Series
One sequel exists, Zone of the Enders: The Second Runner (known as Anubis: Zone of the Enders in Japan), also for the PlayStation 2. There was also a spin-off turn-based strategy title named Zone of the Enders: The Fist of Mars, and an anime series named ZOE: 2167 IDOLO.

While ZOE focusses mostly on the loss of innocence of a child faced with having to kill to survive, IDOLO and The Fist of Mars explore issues surrounding terrorism.