PlayStation has officially 'retired' the Killzone franchise

Some online features are affected; Guerrilla previously said it ‘still loves’ the FPS…

IGN - The website for Killzone has officially been retired and players can no longer make clans in Killzone Shadow Fall, however, multiplayer activity, stats, and ranks will not be affected by

Sony is Retiring Killzone Official Website, Now Directs to PlayStation

Will We Ever See A New Killzone Game?

Guerrilla Games, PlayStation Studios Wiki

Has Sony retired the Killzone franchise?

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Sony is Retiring Killzone Official Website, Now Directs to PlayStation

PlayStation has 'retired' the official Killzone website

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Killzone: Shadow Fall has gone gold