The Callisto Protocol PS5, PS4 versions will have exclusive content, it seems. That's probably why it was showcased in the State of Play.
Is The Callisto Protocol on PlayStation Plus?, callisto protocol ps plus
Sony has confirmed October's PlayStation Plus Essential games
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Everything you should know about The Callisto Protocol
The biophage virus threatens to spread beyond the walls of Black Iron Prison. Fight through the derelict penitentiary in a last-ditch attempt to
The Callisto Protocol - Final Transmission
The Callisto Protocol's DLC Death Animations Haven't Been Made Yet
The Callisto Protocol's DLC roadmap includes new story content in summer 2023
The Callisto Protocol Preorder Bonus Xbox One / Xbox Series X / Xbox Series S
The Callisto Protocol
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The Callisto Protocol Preorders Are Live - GameSpot