
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
game is too unfinished and currently over priced new version is unfinished the older version is mroe polished but just as unfinished. most liekly 2 + years from being finsihed if you want to get this game i recommend getting it while its on sale. having a tutpoprial to learn what the heck im doing would be nice since im curerently guessing on either version of the game .
i think the game hase alot of things to fix but i am enjoing it i would recomande the game for thoes who want rts zombie game
Media

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Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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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
This Game concept is absolutely fantastic in my opinion. I think many others would agree that this game does indeed need work however, as long as the devs keep working on the game and making improvements it will continue to receive my support
Fremnd
Very good game, should add some planes like a A-10 it would be fun fr
gayet iyi
I think this game is great, its a good Challenge For RTS players. Chephus protocol really brings the answer to, what if i had to manage a Bio Horror apocalypse ? it starts you off on a aircraft carrier with a small team and throws you into a city starting to melt down. it really gives you the controls anf freedom to manage it to how you like without a burdensome scripted narative . A Great order to chaos game witch i find most appealing. The people who are making the game are giving constant tweaks and content, switch your game mode to experimental and get somthing new pretty much every week.
When i first saw it I wanted it so bad before i got this game the games i had were boring but this by far the best and most realistic game i have ever seen do have a recommendation though when you see the city the place already looks destroyed I think you should make it so that the more zombies and infection rating there is more chaos will happen like fires, explosions and anything else to make it better if you have seen World war Z movie during the New York scene, you know what im talking about
Great game! already played it for 7 hours and its still in early access we will get more in the future it seems?
The game has really been coming along! The new civilian evacuation gives a great new vibe to the game with alot more things to worry about! It does have a learning curve but once you nail it you can have alot of fun holding areas, making checkpoints, and defeating the infection! Great co-op with friends and ive had alot of fun so far with my buddies! Still needs polish but is all around a good fun time if you like RTS hybrids!
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.
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 |
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| 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 |