Buy Cepheus Protocol CD Key for PC

  • PC
Cepheus Protocol cover
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The cheapest price is 0.69€ (-96%) at Kinguin with a rating of 4.5 (79.8k reviews) · Version Steam Key · Region Global · We compare prices at 9 verified stores with 12 active offers · Updated on 05/12/2025 46min. ago

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The cheapest offer is from Kinguin in KEY format for a price of 0.69€

Buying at Kinguin saves you 96% compared to the official store

Among the listed stores, Kinguin4.5(79.8k) is one of the best rated by the community with a price of 0.69€

At Gocdkeys our recommendation is to always buy the KEY format, preferably from Instantgaming due to its reliability. If you prefer the account format, which is cheaper, we recommend buying from Difmark.

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About Cepheus Protocol

An Open World RTS Military Survival Game. Command CERC (Center for Epidemic Research and Control) to stop a pandemic-level event from consuming the Bay Area. The Pangu Virus threatens humanity as it spreads, turning native inhabitants into infected, relentless swarms. Can you adapt, survive, and reclaim control?

Hardcore RTS Military Combat Meets Survival Horror

  • Aircraft Carrier Operations
    Your mobile base of operations in Pandemic Mode. If it’s destroyed, you lose. Defend it at all costs and utilize Winters, now a rebuildable hero, to lead your forces.

  • A New Threat Rises
    Battle infected hordes that can infect and turn your own units. Command land, sea, and air forces to hold the line in this unforgiving world.

Dynamic Gameplay Systems

  • Command the Operator
    Control the battlefield in Third-Person Shooter mode or use the Operator as a hero unit in RTS mode. Adapt your strategies to survive.

  • Doctrine Tree Progression
    Unlock new support options, powerful weapons, and unique units by leveling up through the Doctrine tree.

  • Customize Pandemic Mode
    Create your perfect challenge. Turn off infected types, adjust gameplay options, and create custom scenarios to tailor the experience.

  • Character Progression
    Improve your characters’ health and targeting efficiency as they gain experience through combat.

Innovative Mechanics and Features

  • Line of Sight and Hearing AI
    Experience cutting-edge AI that hunts your units based on what they can see and hear. Stay stealthy, or face overwhelming swarms.

  • Massive, Detailed Maps
    Explore sprawling urban environments filled with varied locales. Plan every attack, defense, and civilian evacuation carefully to ensure survival.

  • Dynamic Civilian Diplomacy
    Interact with rogue civilian groups. Recruit them to your cause, negotiate alliances, or defend yourself from hostile factions.

  • Civilian Evacuation
    Manage who lives and dies with an intricate Civilian Administration Structure. Customize your intake system or use preset templates to make critical decisions.

Destroy the Infection

  • Research the Pangu Virus
    Delve into the secrets of the alien pathogen and find a way to kill Patient 0 before it’s too late.

  • Hunt Patient 0 and Their Lieutenants
    Stop the infection from spreading by targeting its leaders. Destroy their expanding hordes before they consume every province.

  • Dynamic Provincial Events
    Encounter unexpected challenges as rogue civilian combatants and infected groups form dynamically across the map. Your reputation and decisions will shape the world around you.

Planned Features

  • Enhanced Operator Customization
    Tailor weapons, abilities, and appearance. Drive vehicles, gain progression perks, and refine your playstyle for maximum impact.

  • DNA Research System
    Develop a proper progression tree to counter the virus, protect your units, and evolve your strategies.

  • Improved AI Logic
    Refine the behavior of infected Lieutenants and AI to challenge extreme turtle strategies.

  • Co-Op Multiplayer
    Share control of CERC operations with up to four players. Pool resources, coordinate tactics, and fight as a team against the infection.

  • Canon Campaign Mode
    Experience the official Cepheus Protocol story, inspired by the novel and side storie

WHAT CAN YOU FIND ON GOCDKEYS?

You will find a price comparison in different stores for the standard PC edition of the video game Cepheus Protocol in Steam Key format, to make it easier for you to find the cheapest price or the best deal.

WHAT YOU SHOULD KNOW BEFORE BUYING Cepheus Protocol?


What does this product include?

It includes the Cepheus Protocol video game for PC, although some stores may include special editions with additional content such as a Deluxe or Ultimate edition.

Are there regional restrictions for this PC game?

This product may be global or include region restrictions that only allow you to activate it in specific areas of the world such as Europe, USA or UK. Check carefully! We will let you know if there are any regional restrictions.

How will I receive the product after I purchase it?

Your product will be delivered immediately after payment via email, where you will receive a digital code, also called CD Key, which you can redeem without any problems in the official Steam store.

REASONS TO BUY Cepheus Protocol FOR PC


1- A real-time strategy video game that will transport you to San Francisco, in the midst of a zombie apocalypse that threatens to escape containment and infect the entire world.

2- You will play as Captain Winters and you will have an impressive arsenal and all the resources provided by the United States government, it is up to you to decide how you should use it, should innocent people die to save humanity.

3- Customize your units with dozens of weapon and item options. The better prepared they are, the better their chances of surviving the zombie hordes.

4- Finish with patient zero, which spreads the virus as it moves through the city, taking over the different zones it has and increasing the number of infected people.

Most common FAQs when buying Cepheus Protocol for PC in digital format:

  • What is the key for Cepheus Protocol on PC?

    It is a key that will allow you to download the game Cepheus Protocol on your PC from official download platforms.


  • What's the best price for buying the key of Cepheus Protocol for PC?

    As of 05/12/2025, in United States, the best price we have found in our selection of online stores that include the key for Cepheus Protocol on PC is €0.69.


  • Why is the Steam Key of Cepheus Protocol safer than the account format? See more

    The Steam Key format is what we always recommend due to its ease of use and higher security compared to any other format. You just need to redeem the key in your account to download Cepheus Protocol to your game library. The account format requires more complicated steps and is more prone to errors during activation.


  • What issues can arise when activating a Steam Key of Cepheus Protocol? See more

    The only issue we’ve encountered in 13 years is receiving a duplicate key that doesn’t work. In that case, simply contact the store where you bought Cepheus Protocol, and they will provide a new key. You can also contact us, and we’ll help you out.


  • How long will I have to wait to receive the Steam Key of Cepheus Protocol after purchasing it from a store? See more

    Delivery times vary by store. For example, in the case of Instatgaming, Eneba, G2a, or Kinguin, delivery is usually instant or takes just a few minutes. These stores rarely delay game deliveries.

    Other stores may take 30–40 minutes depending on game availability. On release days, delivery times may be slightly longer.

    If you notice an unusually long delay, contact the store or us, and we’ll resolve it as quickly as possible.


  • What guarantee do I have that the listed stores are reliable? See more

    At Gocdkeys, we only list the most well-known stores that have passed our quality checks. One of the most important factors is good customer support, and all listed stores offer it.

    There have been occasions when those services were overwhelmed, which is why we also offer 24/7 customer support to help resolve any issues or questions.

    In any case, we always offer a 100% guarantee, so you won’t have any problems, and if you do, we’ll resolve them as soon as possible.


Need more help? Use our FAQs.

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