Killzone Shadow Fall is a 2013 first-person shooter video game developed by Guerrilla Games and published by Sony Computer Entertainment for the PlayStation 4. It is the sixth game of the Killzone series and the fourth game of the series for home consoles. Killzone Shadow Fall was released on 15 November 2013 as a launch title for the PlayStation 4 in North America and 29 November 2013 in Europe. Taking place 30 years after the events of Killzone 3, Shadow Fall follows a new set of characters, putting players in the role of Lucas Kellan, a "Shadow Marshal", who is investigating a rising threat in the continuing war between Vekta and the Helghast.

Killzone is a series of first-person shooter video games for Sony Interactive Entertainment's (SIE) video game consoles. The main series and the PlayStation Portable (PSP) installment were developed by Guerrilla Games, a subsidiary of SIE, and the PlayStation Vita installment was developed by Guerrilla Cambridge. Killzone consists of six games, beginning on the PlayStation 2 in November 2004 with Killzone, and continued on the PlayStation Portable in October 2006 with Killzone: Liberation. Killzone 2 was released for the PlayStation 3 in February 2009, and Killzone 3 was released in February 2011, also for the PlayStation 3. Killzone: Mercenary was released for the PlayStation Vita in September 2013, followed by Killzone: Shadow Fall, a launch title for the PlayStation 4, in November 2013.