Cepheus Protocol

An unimaginable plague has been released in San Francisco, turning the population into mutated creatures hellbent on spreading the Pangu Virus. Inspired by classic RTS series Company of Heroes and World in Conflict, it is up to you to win back the city.

This is an Early Access Game

Early Access games are still under development and may change significantly over time. As a result, you may experience unforeseen issues or completely new gameplay elements while playing this game.

You can play now to experience the game while it's being built or wait until it offers a more complete experience.

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A new world is emerging

The Pangu Virus has been unleashed in San Francisco, turning thousands of innocent lives into mindless beasts that feel no pain and have no fear of death. With each passing hour, the Pangu Virus evolves, creating new and ever more horrific mutations with one goal in mind… Spread.
You are Captain Winter, a military officer fighting alongside the Center for Epidemic Research and Control(CERC). With a massive arsenal and the resources of the US Government behind it, you and CERC will stop at nothing to ensure the terror of the Pangu Virus does not escalate beyond containment, even if a whole city and millions of lives must be sacrificed.
  • Cepheus Protocol is inspired by classic RTS games such as Company of Heroes and World in Conflict, alongside the book World War Z.
  • Survive if you can against a relentless enemy that evolves and grows more powerful with each day.
  • Build specialized units from a variety of bases that can be placed anywhere in the open-world map.
  • Battle those infected by the Pangu Virus across four open-world islands, featuring unique and challenging environments.
  • Choose from three combat tiers that play to your style. Each tier has specialized units, equipment, and weaponry.
  • Engage a relentless horde of infected which numbers grow larger and stronger with each territory captured as you battle for control of San Francisco.
  • Hunt Patient Zero, who races across the city seizing territory. Each capture zone increases her population as the virus spreads and possesses all organic matter.
  • Form an alliance or side against the Anarchist and Police factions, which struggle to survive among the madness that has enveloped San Francisco.

Latest Development Videos

Available Achievements

And so it begins....
200 XP
Build the Artillery Unit
200 XP
Avid Listener
200 XP
Didn’t go as planned…
200 XP
Into the Deep End
200 XP

Cepheus Protocol System Requirements

Minimum

Recommended

OS versionWindows 10/11 (64-bit)
OS versionWindows 10/11 (64-bit)
CPUIntel® Core™ i5-4500K
CPUIntel® Core™ i7-6770K / AMD Ryzen 5 1500X
Memory8 GB RAM
Memory16 GB RAM
GPUNVIDIA GeForce 1060 GTX or AMD Radeon Equivalent 2 GB
GPUNVIDIA GeForce 2060 GTX or AMD Radeon Equivalent 6GB VRAM
DirectXDirectX 11
DirectXDirectX 12
Storage6 GB available space
Storage6 GB available space
SoundCardDirect X Compatible
SoundCardDirect X Compatible
Additional Notes**recommended SSD install for optimal performance
Languages Supported
  • Audio: English
  • Text: French, German, Spanish (Spain), Japanese, Korean, Portuguese (Brazil), Russian, Chinese (Simplified)
Copyright of Halcyon Winds LLC