
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 | 3Kreviews | 77% | — | $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
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!
Media

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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
Interessantes Konzept einer apokalyptischen Viruspandemie.
Genuinely can not recommend this in good faith at it's current state. A few months ago the game ran fine and was very fun with higher numbers of zombies and now only three days into a game (in game time) it starts stuttering and freezing and ultimately crashes with or without interacting with civilians. The game IS fun, the radio for vehicles is awesome, but it sucks that I can't even finish a match anymore.
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!
great game one thing i would recommend is for co-op have one person be the base builder while the other be fps on the ground
trash optimization
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 .
Highly addicting. An overwhelming Challenge!
I bought this on my Steam Deck - I saw some videos on YT and it looked cool. I work long hours so I like games that I can pick up and play (without needing to install plug-ins, etc etc). In my experience, it just doesnt work for SD and I refunded it after 30mins. It says Playable on Steam - but its not, at least for me. First issue: I couldnt even accept the T&Cs, I tried everything and it simply wouldn't tick the box. Eventually, I had to switch to Desktop mode which allowed me to accept it, but when I closed and re-loaded in Gaming mode I had the un-tickable T&Cs again. Therefore, I could only play in Desktop. Second issue: The Offical button layout didn't work. By this point, I was already sort-of done, but I loaded the game and I didnt have a courser, I couldnt zoom in or out. Faffing with button layouts and switching to Desktop is just a right ballache, which is a shame as I was quite excited to play this. Might try it again in the future if it becomes more fleshed out and "pick up and playable"
Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
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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| $2.1M | 8.4K | 95% | $19.99 | |
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