No, you don't need a pass to play Killzone online.
I play all the time as it's one of my favorite titles. So enjoy
Good to kno I've been thinkin about buying KZ3 used cause it's gotten pretty cheap and cause it looks like a fun Move Title.
I'm pretty sure you don't. Uncharted 3 was the first title to utilize Sony's online pass system.
Resistance 3 was the first title to have the online pass from Sony.
I just wanted to make sure no one picked up a copy of R3, or R&C: All4One and was surprised by the pass.
Killzone 3 is an awesome game, and yep as MS said, no PSN pass required!