Killzone 2 is a is a first-person shooter for the PlayStation 3, made by Guerrilla Games and published by Sony Computer Entertainment. It is the third game in the Killzone series that began on the PlayStation 2 with Killzone and continued on the PlayStation Portable with Killzone: Liberation. The game was first announced at E3 2005, with a technology demo on display, while the first gameplay video was shown two years later at E3 2007.