
The Callisto Protocol
In this narrative-driven, third-person survival horror game set 300 years in the future, the player will take on the role of Jacob Lee – a victim of fate thrown into Black Iron Prison, a maximum-security penitentiary located on Jupiter's moon, Callisto. When inmates begin to transform into monstrous creatures, the prison is thrown into chaos.
The Callisto Protocol Free Download - Game Review
Using a unique blend of shooting and close-quarters combat, Jacob will need to adapt his tactics to combat the rapidly evolving creatures while scavenging to unlock new weapons, gear, and abilities to outrun the growing threat and escape the horrors of Jupiter's Dead Moon. The Callisto Protocol is a next-generation take on survival horror from the mind of Glen Schofield. Blending atmosphere, tension, and brutality with terrifying moments of helplessness and humanity, The Callisto Protocol immerses players in a pulse-pounding story where unspeakable horrors lurk around every corner.
- UNCOVER THE SECRETS OF THE UNITED JUPITER COMPANY
Set on Jupiter’s dead moon Callisto in the year 2320, The Callisto Protocol casts players as Jacob Lee, an inmate in Black Iron Prison. When a mysterious outbreak throws the moon into chaos, Jacob must face his darkest fears to defeat the bloodthirsty creatures that stalk him as he unravels the dark mysteries at the heart of the powerful United Jupiter Company. - MASTER BRUTAL, STRATEGIC COMBAT
The Callisto Protocol challenges players to master a thrilling blend of hand-to-hand and ranged combat, including a unique gravity weapon once used by Black Iron guards to control the prison population. Players will be forced to get up close and personal with their grotesque opponents, hacking off limbs, blasting off legs, and getting creative with whatever is at their disposal to survive each life-or-death encounter. - EXPERIENCE THE ISOLATION OF JUPITER'S DEAD MOON
One of the most hostile, isolated environments in the universe, Callisto looms large over Jacob’s desperate struggle to survive. Players must not only contend with the horrors of Black Iron Prison, but also the centuries-old secrets that plague Jupiter’s long-dead moon, both above and below the surface.
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Installation Guide
Step-by-step setup process
Important Notes
Please review these important details before installation
Install necessary apps from Redist or _CommonRedist to ensure game launches without any problems.
Keep your antivirus on. If it quarantines a file and the game will not start, do not exclude the folder or switch protection off. Compare the archive's SHA-256 with the hash listed for the download, where there is one, then follow our Safety & Verification page to report it. If you decide to restore a file, restore that one file only.
Run the game as administrator only if it will not start or cannot save without it.
For a detailed guide, read the Installation Guide on our website.
System Requirements
Minimum specifications needed
Requires a 64-bit processor and operating system
- OS
- Windows 10/11
- Processor
- Intel® Core™ i7-8700 or AMD Ryzen™ 5 3600
- Memory
- 16 GB RAM
- Graphics
- NVIDIA® GeForce® GTX 1070 or AMD Radeon™ RX 5700
- DirectX
- Version 12
- Storage
- 75 GB available space
- Additional Notes
- SSD recommended
About this build
Matches Steam- Version
- Build 14745831
- Compared with Steam
- The same build Steam has now. Checked Nov 14, 2026.
Included DLC
- Snake Skin
- Gore Skin
- Biophage Skin
- Final Transmission
- Riot Bundle
- Contagion Bundle
- The Outer Way Skin Collection
- Season Pass
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Discussion
Comments 3
SERGE
WAY BETTER THE DEAD SPACE! AND I LOVE DEAD SPACE IS DEFINETLY ON MY TOP OF ALL TIME. CHECK THIS ONE OUT
SERGE
This game is so FIRE!!!! Thank you
Thank you Thank you
I love it Once in a blue moon I'll come across a super FIRE ass game
This is awesome!!!!
Joshua
· editedThank you for uploading the game, bro. I don't know why, but I keep getting an extraction error during the extraction process. Please fix it, bro.