Killzone Trilogy - Metacritic

The Killzone Trilogy is a compilation pack that includes the original Killzone, Killzone 2, and Killzone 3, as well as all the multiplayer packs for Killzone 2 and Killzone 3.

The 10 Best First-Party PlayStation 4 Games, According to Metacritic

Runoff 2011, Game of the Year

So What Was That Whole Killzone Series About? : r/Games

Killzone 2, PlayStation Studios Wiki

Killzone: Mercenary detailed, release date set - Gematsu

Killzone 3 - Metacritic

Killzone 3 - Metacritic

Killzone 2 - Metacritic

Killzone 3 - Metacritic

Killzone 2 - Metacritic

Killzone 3 - Metacritic