Killzone Trilogy, Killzone Wiki

The Killzone Trilogy is a collection of Killzone games for the PlayStation 3 under Sony's PlayStation Collections line, including Killzone, Killzone 2, and Killzone 3. The original Killzone has been remastered in HD to support 720p resolution and Trophies. The collection also includes all DLC maps for Killzone 2 and Killzone 3. The Killzone Trilogy was released on October 23, 2012.

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Killzone Trilogy - IGN

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Killzone Trilogy Characters - Giant Bomb

Killzone Trilogy, Killzone Wiki

Killzone 3 Helghast Edition, Killzone Wiki

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Killzone Trilogy

Guerrilla Games, Killzone Wiki

Killzone 2, Killzone Wiki