Killzone is a PlayStation-exclusive first-person shooter, developed by Netherlands-based Guerrilla Games and released on November 2, 2004 in North America. An emulated version was set to be released on the PlayStation Network on January 24th, 2012 for the PlayStation 3, but was later delayed indefinitely. On September 6th, Sony revealed that the port became an HD remaster and was released within the Killzone Trilogy on October 23, 2012.