The Callisto Protocol - Final Transmission

The biophage virus threatens to spread beyond the walls of Black Iron Prison. Fight through the derelict penitentiary in a last-ditch attempt to retrieve Mahler’s data, get it off Callisto and redeem yourself.

The Callisto Protocol - Final Transmission


Black Iron Prison is in ruins and crawling with biophage. But your work on Callisto isn't finished yet. Survive the horrors lurking in the shadows long enough to retrieve Dr. Mahler’s research and transmit it off-world. Discover the harrowing depths of Mahler’s experiments and the vast reach of Kallipolis’ influence.


Not only must you face the monstrosities and Security Units lurking the halls of Black Iron but a new abomination – part biophage, part machine – now stalks the crumbling prison. Keep your guard up and use every weapon at your disposal to destroy these powerful new enemies.


The terrors lurking Black Iron are imposing... but so are you. Acquire the all-new Kinetic Hammer to take down hordes of biophage. Use the heavy-hitting hammer to bludgeon a single biophage and crowd control multiple enemies at once or use the charged heavy attack to deal massive damage and dismember your adversaries.

The Callisto Protocol Ratings & Reviews

  • 42%
    Critics Recommend
  • 67
    Top Critic Average
  • Fair
    OpenCritic Rating
  • See All Reviews
by Vikki Blake
Dead Space comparisons are impossible to avoid - but while The Callisto Protocol's missing some of the depth and tension, it makes up for it with production value and bloody-minded fun.
PC Gamer
by Shaun Prescott
79 / 100
Gory and moody, The Callisto Protocol doesn't mess with the survival horror formula, instead embracing all its beats and clichés to tell a grim sci-fi tale that drips with menace.
by Tristan Ogilvie
7 / 10
The Callisto Protocol is a satisfyingly gory spiritual successor to the Dead Space series, but it’s ultimately more of a striking modern mimic than a scary new mutation.
Reviews provided by OpenCritic

The Callisto Protocol - Final Transmission System Requirements



OSWindows 10
OSWindows 10/11
ProcessorIntel Core i5-7500
ProcessorAMD Ryzen 3 1200 4 Cores
Memory8 GB
Memory8 GB
Direct XDirectX 11
GraphicsAMD NAVI (RX 5500)
GraphicsNVIDIA TURING (RTX 2070)
Login Accounts Required
Epic Games
Languages Supported
  • AUDIO: English, Chinese - Simplified, French, German, Italian, Japanese, Korean, Spanish - Spain
  • TEXT: English, Chinese - Simplified, French, German, Italian, Japanese, Korean, Polish, Portuguese - Brazil, Russian, Spanish - Spain, Spanish - Latin America
© 2022 Striking Distance Studios, Inc. ALL RIGHTS RESERVED. STRIKING DISTANCE STUDIOS and THE CALLISTO PROTOCOL are trademarks or service marks of Striking Distance Studios, Inc. KRAFTON is a registered trademark or service mark of KRAFTON, Inc.