
Cepheus Protocol is an Open World RTS Military Survival Game. Play as the CERC hunting Patient 0, maintain Quarantine camps, fight dangerous mutations & Rogue Civilian Combatants . There’s nobody else coming, it’s up to you now.
Modeled estimate, not a reported figure. How we estimate →
Prices
The United States storefront in every case, so this compares stores and not countries.
Prices
Each in the currency that store quoted — not converted: the gap between two rows is the publisher's pricing, not an exchange rate.
Every market we collect.
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 1/day in the week to Aug 24 → 1.86/day in the week after.
About
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?
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.
Co-Op Multiplayer up to 16 players in true RTS/TPS hybrid combat!
Share control of CERC operations with up to 16 players. Pool resources, coordinate tactics, and fight as a team against the infection.
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.
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 (Legacy Only Coming in Q2 to rebuild)
Interact with rogue civilian groups. Recruit them to your cause, negotiate alliances, or defend yourself from hostile factions.
Civilian Evacuation (Legacy Only Coming in March to rebuild)
Manage who lives and dies with an intricate Civilian Administration Structure. Customize your intake system or use preset templates to make critical decisions.
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.
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.
Canon Campaign Mode
Experience the official Cepheus Protocol story, inspired by the novel and side stories
Sums Steam only; Epic publishes no volume signal, so the true total is higher by an unknown amount.
| Store | Price | Audience | Score | Chart | Est. revenue |
|---|---|---|---|---|---|
SteamYou are here | $19.99 | 3.8Kreviews | 75% | — | $2.1M |
| $19.99 | — | — | — | not modelled |
Matched by title — a reused name can pair the wrong games. * is a critic aggregate. Prices and positions are each store's United States storefront; Epic charts worldwide. Audience and Score too, except Steam's, which is worldwide.
Updates
Engagement
Reviews
Themes across 160 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Let me start by saying: This game is VERY much still in development, as it is currently being remade with a new engine. There will be bugs and UI issues, but rest assured that the devs are working on these every day (you can check the Discord right now to see all the updates/bug fixes the devs are constantly doing). They're also EXTREMELY open to feedback and are constantly interacting with players in the Discord. But if that aspect of early access is too much, this may not be the game for you. With that being said, this game truly scratches an itch that few other games do. Have you ever been pissed off watching a zombie movie and wondering how tf the government lost? This is your chance to show why you're better. Fight off the infection while evacuating and managing the moral of civilians. Send out strike missions to hold chokepoints and destroy sources of infection. Then when you're ready, take the fight to the original source of the infection itself, Patient Zero. In addition, the devs have added so many slides/toggles that allow you to customize the game to play EXACTLY how you want. Hate a certain zombie type? Turn them off! Want to increase how much payout you get for evacuating civilians? Go for it! Want to make all the zombies walk so it feels like the walking dead? You can! Even better, you have the ability to save these settings as presets so you don't have to redo all the settings every time you play. Overall, for the price, theme, customization, and constant development, I really do recommend this game IF you can handle the bugs and UI. If you do decide to purchase the game, I recommend using the discord to ask questions because the game is confusing and does not have a tutorial at this time. Also be wary about older tutorials as the game is being remade and thus most of them are out of date. Finally, set the auto-save button to every 5 minutes because the game, at this time, is definitely prone to crashes (primarily on the large beta map)
Media

Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
This and every other Pro feature is free until October 20, 2026. A free account is all it takes.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $2.1M | 1.9K | 87% | $24.99 | |
| $2.1M | 2.5K | 93% | $19.99 | |
| $2.1M | 2.5K | 89% | $27.99 | |
| $2.1M | 2.1K | 65% | $12.49 | |
| $2.1M | 1.3K | 59% | $59.99 | |
| $2.1M | 2.6K | 47% | $39.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $1.4M | 2.6K | 73% | $19.99 | |
| — | 0 | — | — | |
| — | 81 | 36% | — | |
| $28.1M | 31.6K | 66% | $29.99 | |
| $798.6K | 1.7K | 48% | $19.99 | |
| $410.8K | 2.6K | 80% | $4.99 |
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,400 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, Simplified Chinese, Korean, German, Japanese, Russian, Spanish - Spain, Portuguese - Portugal, French*languages with full audio support
Build ids and update times come straight from Steam's PICS — the same source SteamDB reads. Patch history grows as we record new builds.
Hours played at review time, across 160 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
sehr zeitintensiv und ein Fehler kann 4 stunden Spielzeit direkt kaputt machen aber sonst geiles spiel
Every zombie fans dream. Military sim pre and post outbreak. Potential is Yuuuuuuuuge!
its hard to completely recommend this game, you need to buy their vision. it is unique, there is no other game like it. army rts where you have to stop an infection of zombies. you land, you build you base and defend and go on excursions. its fun and i enjoy the concept - but its a bit of junk. they also implemented a civilian rescue objective, but i have no idea how it works and there is no tutuorial so its anyones guess. i recommend it because it has real potential and the developers have committed to the game. hope they keep at it.
Great Game
bon jeux j'attend avec impatience les nouveautés
Muito bom
i like the game because i like military rts games and i love military/zombie game i spent time on it but there is bugs and i get 30-40fps in heavy sections and somtimes 11 fps you can see my specs but the game is not optimized greatly but i loved it
KI und KI-Pathfinding absolut unbrauchbar was schade ist, da es sonst ein OK Spiel wäre.
Nice Game!!!!!!!!!!!!!!!!!
Active players
Estimated daily and monthly active players (DAU/MAU) modeled from peak concurrency.
Players by region
Where this game's players are, estimated from review languages.