Cepheus Protocol game cover

Cepheus Protocol CD Key

Cepheus Protocol is an open-world RTS game where players control the Center for Epidemic Research and Control amidst an alien virus outbreak in San Francisco. Train squads, defend bases, and combat infected hordes while making strategic decisions to stop Patient Zero and survive the pandemic. Customizable modes and cooperative gameplay enhance the experience.
Looking for the best price for Cepheus Protocol? Compare offers from 6 stores on CheckGamePrices to find the cheapest Steam key available. Right now, the lowest price is 4.88$ at Eneba, which is 69% cheaper than the current Steam price (15.99$).

Current Lowest Price

4.88$
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Eneba - Cepheus Protocol Steam Key GLOBAL

4.88$

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G2A - Cepheus Protocol (PC) - Steam Key - GLOBAL

10.80$

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GameSeal - Cepheus Protocol (PC) Steam Key - EU

12.46$

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Gamivo - Cepheus Protocol EN Global

13.66$

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Steam

15.99$

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K4G

19.00$

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Release Date

15 May, 2020

Publisher/Developer

Halcyon Winds

Reviews

Steam: 76.95% positive (2304/2994)
Metacritic: -
Check more Steam statistics for Cepheus Protocol

Game Tags

System Requirements

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10/11 (64-bit)
  • Processor: Intel® Core™ i5-4500K
  • Memory: 8 GB RAM
  • Graphics: NVIDIA GeForce 1060 GTX or AMD Radeon Equivalent 2 GB
  • DirectX: Version 12
  • Storage: 8 GB available space
  • Sound Card: Direct X Compatible
  • Additional Notes: **recommended SSD install for optimal performance

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Cepheus Protocol Steam Price History Chart

Current Steam price: 15.99$
Lowest Steam price ever: 15.99$ — 2026-10-20 — Current low
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Cepheus Protocol description

Cepheus Protocol is an open world real-time strategy (RTS) military survival game that plunges players into the chaos of a viral outbreak in San Francisco. As the leader of the Center for Epidemic Research and Control (CERC), your mission is to track down and neutralize the Pangu Virus, an alien pathogen that transforms its hosts into deadly entities. Your journey begins with the discovery of the Voyager Dawn, a ship that harbors dark secrets and the origin of the virus.In this intense gameplay experience, you’ll command a squad of up to 8 characters, each with the potential to be trained and leveled up through combat. You’ll face challenges from dynamic infected swarms and hostile civilians, utilizing land, sea, and air resources to protect your base and civilians. Players can customize their experience in Pandemic Mode, employing a range of strategies, from diplomatic negotiations with civilian groups to executing tactical evacuations.Research the Pangu Virus to unlock new abilities and countermeasures, while leveling up your units through an engaging doctrine tree. With a massive, detailed map at your disposal, plan your assaults, defenses, and evacuations, deciding who lives or dies in this harrowing fight for survival. Will you succeed in stopping Patient Zero, or will the infection consume the city?