Killzone HD hits October 23 - GameSpot

Sony offering Guerrilla's 2004 shooter as $15 stand-alone download on PlayStation Network next month; game boasts 720p graphics at 30fps with trophies.
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.

News - May, 2013

Killzone 2 sales top 1 million - GameSpot

Single-player Killzone 3 demo hits Feb. 15 - GameSpot

Killzone: Shadow Fall - IGN

Most anticipated games from E3 2010 (photos) - CNET

GameSpot Reviews - Killzone 3 (PS3)

Killzone HD Coming to PSN October 23rd, Trophy List Revealed – PlayStation.Blog

Killzone 2 Videos for PlayStation 3 - GameFAQs

A new breed of hero for a new vision of Killzone: Play as Shadow Marshal Lucas Kellan. Representing Vekta's finest and tasked with maintaining the

Killzone: Shadow Fall Hits - PlayStation 4

Killzone: Shadow Fall Review - GameSpot

Killzone 3 - Wikipedia

Grandia HD Collection Not on PS4 Because it Doesn't Support 4K

Killzone 2 Review - GameSpot

Uncharted 2: Among Thieves - Wikipedia