ID Software has just announced through the game’s official website that Rage has been delayed to October 4th. The game was first set to release September 18th which the developers announced last year. The delay is most probably to get out of the way of Gears Of Wars 3′s release window which hits the stores September 20th.
The European release has also been moved to October 7th. If the game does indeed release on the new date it will be hitting the stores along with Twisted Metal with Dark Souls coming 3 days later.
Source: Rage