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.
Best gaming PC for The Callisto Protocol in 2026
Full buyers guide →Below are the four PC tiers we'd actually recommend for The Callisto Protocol today. These are our 2026 hardware picks, not the dated publisher minimums you'll find on Steam.
Budget
£7991080p · 60fps
- CPU
- AMD Ryzen 5 7600
- GPU
- NVIDIA GeForce RTX 4060 8GB
- RAM
- 16 GB
- Storage
- 1TB NVMe SSD
Mid-tier
£1,2991440p · 60fps
- CPU
- AMD Ryzen 7 7700
- GPU
- NVIDIA GeForce RTX 4070 Super 12GB
- RAM
- 32 GB
- Storage
- 2TB NVMe SSD
High-end
£1,7991440p · 144fps
- CPU
- AMD Ryzen 7 9800X3D
- GPU
- NVIDIA GeForce RTX 5070 Ti 16GB
- RAM
- 32 GB
- Storage
- 2TB NVMe SSD
Enthusiast
£3,4994K · 60fps
- CPU
- AMD Ryzen 9 9950X3D
- GPU
- NVIDIA GeForce RTX 5090 32GB
- RAM
- 64 GB
- Storage
- 4TB NVMe SSD
Official system requirements
These are the minimum and recommended specs as published by Krafton on Steam. They tend to be conservative — usually "what ran the game at 1080p when it shipped". For what you should actually buy in 2026, see the tier cards above.
| Minimum | Recommended | |
|---|---|---|
| OS | Windows 10 / 11 | Windows 10 / 11 |
| CPU | Intel® Core™ i5-8400 or AMD Ryzen™ 5 2600 | Intel® Core™ i7-8700 or AMD Ryzen™ 5 3600 |
| RAM | 8 GB | 16 GB |
| GPU | NVIDIA® GeForce® GTX 1060 or AMD Radeon™ RX 580 | NVIDIA® GeForce® GTX 1070 or AMD Radeon™ RX 5700 |
| Storage | 75 GB | 75 GB |
| DirectX | 11 | 12 |
Verified 18 May 2026 against the Steam store page.
Can your PC run The Callisto Protocol?
If your CPU is roughly equivalent to Intel® Core™ i7-8700 and your GPU is at or above NVIDIA® GeForce® GTX 1070, you'll hit recommended settings at 1080p/60. For 1440p or higher, see the tier picks above.