
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
Fantastic game, very fun.
6 years of early access to run this poorly is crazy
DAUMEN RUNTER WEIL ES !!!MOMENTAN!!! NICHT SPIELBAR IST. also meiner meinung nach ist das spiel nicht spielbar. tolles konzept macht bestimmt super spass wäre es denn spielbar. hab es gott sei dank woanders günstiger erstanden. irgendwann ist es spielbar dann schau ich noch mal rein aber momentan..,. es ist halt das wichtigste am spiel was nicht funktioniert und das ist die evakuierung. diese stoppt bei mir einfach nachdem ca 200 leute gerettet wurden. die busse bleiben einfach stehen und melden dass die basis "verstopft" sei o.ä. auf jeden fall wird die arbeit einfach unterbrochen.
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.
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
With about 15 hours into this game I can say I would recommend buying it. Don't get me wrong there are some issues with the game, as to be expected for a EA game, but even still I can say I have already gotten my $20 worth. If you're looking for a fun little RTS to jump into with decent base building and logistics management then I would take a look at this title. I have had some issues running it however; even on low settings, but even still I am able to get through a whole play session no real issues. My PC also is not the best either so take that into account. It is very fun at first. Loading in, restarting your game and trying new tactics to learn how to build a stronghold to keep a foothold against the zombies while trying to expand outwards to rescue as many civilians as possible. The tech tree is pretty robust, and the upgrades feel satisfying to unlock and unleash against the hordes of undead. It does begin to feel bland after a little while though, so be prepared to feel a bit of a slog after a few hours of repetition. Overall, even in its current state, I would recommend and I look forward to future updates to see where this game goes!
I love RTS games and this is a really cool and unique take on it. It also has some 3rd person play, but I haven't played with that feature yet.
There is jank, but there is an absolute gem of a game here. Excited to see continued development.
The concept is good and interesting. I did enjoy playing it. I will state the negatives and positives: Negatives: - Its finicky, small buttons to click, difficult to enjoy, it needs constant full focus just to click around. - the AA is terrible, iirc this is because TSR is being used, in distance lines start shaking. there is no option to change this - the menu items is too large font, unstyled almost, it looks unfinished - SPELLING MISTAKES !!! - pathfinding, units going trough each other, things like this - memory leaks possibly, after a while you lose framerate - general polish is not finished, like the civilians are just blobs Positives: - Concept, its interesting - upgrade system is nice, i like it - size, its decent - vehicle choices and their upgrades - things like airstrikes, very cool - It has a tower defence kind of vibe, cool - much room for expansion, in multiple ways In general, for the developer, Very cool concept and i want you continue with this. It has the potential to become a very cool game!
Learning curve is steep, with little to no help, but overall the game is worth it, just wish there was a tutorial
A completely different aspect to an RTS game, I absolutely love what the devs have been doing and they really are listening to the community. I've always been a fan of RTS games but this one does it like no other and has such an interesting setting. Plenty of settings for you to adjust to make your game as easy or as difficult as you like and plenty of different ways to play the game. Every game you play is different!
trash optimization
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.
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