The Callisto Protocol

Platforms

• Microsoft Windows

• Xbox Series X and Series S

Genres

• survival horror

• horror game^*

Play modes

• single-player video game

Players by platform

• Microsoft Windows^*

  Maximum players (mode unspecified)

  1^*

Content classifications

• ESRB · Microsoft Windows^*

  Classification

  M - Mature^*

Engines

• Unreal Engine 4

Localized titles

• The Callisto Protocol

Steam version platforms

• Windows^*

  Supported

  Yes^*

• macOS^*

  Supported

  No^*

• Linux^*

  Supported

  No^*

Store genres

• Action^*
• Adventure^*

Game features

• Single-player^*
• Steam Achievements^*
• Full controller support^*
• Steam Cloud^*
• Family Sharing^*

Interface languages

• English^*

  Full audio

  Yes^*

• French^*

  Full audio

  Yes^*

• Italian^*

  Full audio

  Yes^*

• German^*

  Full audio

  Yes^*

• Spanish - Spain^*

  Full audio

  Yes^*

• Japanese^*

  Full audio

  Yes^*

• Korean^*

  Full audio

  Yes^*

• Polish^*
• Portuguese - Brazil^*
• Simplified Chinese^*

  Full audio

  Yes^*

• Spanish - Latin America^*
• Russian^*

Audio languages

• English^*
• French^*
• Italian^*
• German^*
• Spanish - Spain^*
• Japanese^*
• Korean^*
• Simplified Chinese^*
• Russian^*

Community tags · historical

• Horror^*

  Votes · historical

  453^*

• Sci-fi^*

  Votes · historical

  427^*

• Survival Horror^*

  Votes · historical

  418^*

• Third-Person Shooter^*

  Votes · historical

  410^*

• Space^*

  Votes · historical

  391^*

• Shooter^*

  Votes · historical

  346^*

• Action-Adventure^*

  Votes · historical

  331^*

• Third Person^*

  Votes · historical

  329^*

• PvE^*

  Votes · historical

  303^*

• Action^*

  Votes · historical

  287^*

• 3D^*

  Votes · historical

  287^*

• Story Rich^*

  Votes · historical

  285^*

• Linear^*

  Votes · historical

  273^*

• Realistic^*

  Votes · historical

  249^*

• Adventure^*

  Votes · historical

  238^*

• Robots^*

  Votes · historical

  217^*

• Cinematic^*

  Votes · historical

  201^*

• Dark^*

  Votes · historical

  198^*

• Futuristic^*

  Votes · historical

  176^*

• Singleplayer^*

  Votes · historical

  124^*

System requirements

• Windows · Minimum^*

  Operating system

  Windows 10/11^*

  Processor alternatives

  Intel® Core™ i5-8400 or AMD Ryzen™ 5 2600^*

  Memory

  8 GB RAM^*

  Graphics alternatives

  NVIDIA® GeForce® GTX 1060 or AMD Radeon™ RX 580^*

  Graphics API

  Version 11^*

  Storage

  75 GB available space^*

  Conditions

  Requires a 64-bit processor and operating system^*

• Windows · Recommended^*

  Processor alternatives

  Intel® Core™ i7-8700 or AMD Ryzen™ 5 3600^*

  Memory

  16 GB^*

  Graphics alternatives

  NVIDIA® GeForce® GTX 1070 or AMD Radeon™ RX 5700^*

• Windows · Recommended memory · 2026-06-27^*

  Memory

  16 GB^*

Compatibility and community reports

• Controller support · 2026-06-27^*

  Controller support

  Full^*

• Steam Deck · Community performance · 2026-06-27^*

  Community-reported frame rate

  35 fps^*

  Reports

  1^*

• Linux · Community reports · 2026-06-27^*

  Community Linux compatibility tier

  Platinum^*

  Reports

  66^*

  Community confidence

  strong^*

• Steam Deck · 2026-06-27^*

  Compatibility category

  Verified^*

Developers

• Striking Distance Studios

Publishers

• Krafton
• KRAFTON, Inc.^*

• 2022-12-02

  Date precision

  Exact date

  Market

  worldwide

• 2022-12-01 · Microsoft Windows^*

  Release date

  2022-12-01^*

  Date precision

  Exact date^*

  Platform

  Microsoft Windows^*

Store release history

• Steam^*

  Release date

  Dec 1, 2022^*

Detailed specifications