Can I Run Cepheus Protocol?
Released in 2020, Cepheus Protocol is an action adventure game built by Halcyon Winds. The game supports a single player campaign and cooperative play. Only some of the game is mapped to a controller. Saves sync through Steam Cloud, so moving between machines does not cost progress. Being 6 years old, it was built for the hardware of its day, so a current machine usually has headroom over the published figures. Steam lists support for 9 languages. Windows is the only supported platform, which is what the figures below describe. Completionists have 5 achievements to work through. Workshop content is supported, so the published requirements describe the unmodded game only. Its Steam review count passes 2 thousand, a large enough sample that odd hardware behaviour would be known by now.
Can your PC run it? →System requirements
Minimum requirements
| CPU | Intel® Core™ i5-4500K |
|---|---|
| GPU | NVIDIA GeForce 1060 GTX or AMD Radeon Equivalent 4 GB |
| RAM | 8 GB |
| Storage | 8 GB SSD |
| OS | Windows 10/11 (64-bit) |
| DirectX | Version 12 |
Recommended requirements
| CPU | Intel® Core™ i7-6770K / AMD Ryzen 5 1500X |
|---|---|
| GPU | NVIDIA GeForce 2060 GTX or AMD Radeon Equivalent 6GB VRAM |
| VRAM | 6 GB |
| RAM | 16 GB |
| Storage | 8 GB SSD |
| OS | Windows 10/11 (64-bit) |
| DirectX | Version 12 |
Verified from Steam · 19 Jul 2026 source
Scores are deterministic, computed by fixed rules and benchmark tables, not written by an AI. How we score. Maintained by Farhad Ali. Spotted a wrong specification? Tell us.
Setting and environment
Cepheus Protocol places its action in an open sandbox, and the player works through hostile territory. There are 41 official screenshots to judge the look from.
Why Cepheus Protocol is demanding
At 6 GB, VRAM is a non issue for Cepheus Protocol. A 64 bit version of Windows is required. The install is small at roughly 8 GB, on an SSD. DirectX 12 is named, so Cepheus Protocol expects a graphics driver and card from the modern era rather than merely a fast one. Its 16 GB RAM requirement matches what a typical machine already has.
This reading comes from the published requirements and our own benchmark tables, not from the store listing.
Can you run Cepheus Protocol?
Cepheus Protocol targets a mainstream modern PC: NVIDIA GeForce 1060 GTX or AMD Radeon Equivalent 4 GB and 8 GB of RAM for the minimum, stepping up to NVIDIA GeForce 2060 GTX or AMD Radeon Equivalent 6GB VRAM for the recommended experience. No single part dominates the requirements, so a balanced mid-range build clears it.
Bottleneck: CPU
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DOOM EternalFrequently asked questions
Can my PC run Cepheus Protocol?
Upload your DxDiag file to Idxdiag's free checker and get a component by component compatibility verdict for Cepheus Protocol in seconds. No install required.
What are the minimum system requirements for Cepheus Protocol?
The minimum requirements are CPU: Intel® Core™ i5-4500K; GPU: NVIDIA GeForce 1060 GTX or AMD Radeon Equivalent 4 GB; 8 GB RAM; OS: Windows 10/11 (64-bit).
How much storage does Cepheus Protocol need?
Cepheus Protocol needs about 8 GB of SSD storage.
What is the bottleneck for Cepheus Protocol?
On a typical modern PC (Ryzen 5 5600, RTX 3060, 16 GB RAM), the tightest component for Cepheus Protocol is the CPU.