Deus Ex: Invisible War is an action role-playing video game developed by Ion Storm and published by Eidos Interactive. Released simultaneously for Microsoft Windows and the Xbox video game console on December 2, 2003, the game is a sequel to the critically acclaimed Deus Ex. The game takes place twenty years after Deus Ex, in a world being rebuilt after a catastrophic event called "The Collapse." Following a terrorist attack that destroys the city of Chicago, the player assumes the role of Alex D, a trainee at the Tarsus Academy, whose support is sought by several organizations. As the game progresses, the player learns of conspiratorial factions which seek to drastically change the world.