
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 →
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
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
Engagement
Hours played at review time, across 58 reviews with recorded playtime.
Reviews
Themes across 58 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
positive critical· bar length = how often the theme comes up
Reviews
BELLA IDEA E RICHIAMO AGLI RTS IN UN SOLO COLPO.
Esta verde en lo que viene siendo el pathfinding, lo mas dificil de hacer en cualquier RTS, la infanteria funciona cuando quiere pero los vehiculos, no se te ocurra agarrar mas de uno o combinarlo con infanteria porque se van a trabar en TODOS LADOS, pero fuera de eso, si le buscas la vuelta con mucho micro, hay un buen juego ahí. Basicamente hay una isla en la que la enganchas justo cuando va a arrancar la infección, tu trabajo, contener ese virus, evacuando gente de las zonas cercanas (o matandolas) para evitar la propagación y que haya mas infectados. Una vez tengas los recursos suficientes vas y matas al paciente 0. En papel esta genial el concepto, tener que reforzar las partes de la ciudad, haciendo cuellos de botella para no tener las defensas tan dispersas, sacrificando ciertas zonas de la ciudad para poder mantener otras y ese tipo de decisiones, el problema mas grande de este early ahora mismo es como ya dije al principio, el pathfinding, es MUY molesto no poder usar vehiculos porque se traban en cualquier parte, o no pueden MANDAR REVERSA!! lo hacen cuando quieren y cuando NO les conviene, muchas veces aparece un jugger y no se puede kitear con el humvee con los misiles, solamente toca sacrificar la unidad para que tankee mientras los demas tiran explosivos. Tiene una curva de aprendizaje bastante promedio en lo que viene siendo un RTS, lo unico complejo a aprender (y que no tiene tuto pero tampoco es tan complicado) es el sistema de lso civiles, como extraerlos y hacer campos de refugiados, fuera de eso, lo tipico de unidades que a medida que progresas sacas mejores unidades en ciertos aspectos como por ejemplo de pasar un soldado de asalto a un francotirador, especializado en unidades especiales, o medicos para aguantar el squad. La IA es bastante penosa cuando viene a ser las habilidades especiales, los medicos tenes que micrearlos y hacer que no disparen y acercalos a sus compañeros, de lo contrario rara vez curan, las granadas cancelan por completo las acciones de la unidad, asi que si estas kiteando y tiras una granada se queda tieso, se olvida de que estabas moviendo a todo el squad entero. Si te gustan los RTS y te copo el They are billions, este juego va a ser tu onda, yo le veo mucho potencial y el dev es muy activo en los foros, yo la dude mucho al momento de comprarlo pero una vez lo probas, te enganchas
Lots of potential but needs work. Potential cult classic if dev can execute
Cool RTS zombie game. Does it have some jank, sure but still in early access and the next update will fix most of the issues I noticed. Graphics are good, units and buildings look detailed. The pandemic mode was pretty cool, evacuating people before the infection gets to far out of control. It ramped up in difficulty for real when the main part of the island was super infected and I had to hold the line to the evac point. Main points of concern. * Pathing - being updated in next patch * civilian unrest: when the civilians pop out of the buildings.. they ALL focus instantly on defense buildings where it takes 2 to 3 seconds for your guys to react. I can't tell you how many turrets and generators I lost because they just pop right out of the building. - Fix suggestion, give them a delay before they can shoot of 2, 3 seconds also. * AI infection difficulty scaling - I understand you want to make the enemy adaptable to each fight, but holy cow.. Send out a convoy with tanks and spec ops.. get mauled by 8 car throwing behomoths and one car will kill 6-8 troopers. They respawn so fast that I can't keep up with the big guys.. So I go air force and 1000 birds and like 30 spitters just keep popping up out of the blue and wiping out my helicopters. Literally had to wait out the infection while the birds would swarm my base and literally cause my 4080TI graphics card to scream at me with frame rates of hell. Like 1000's of birds all at once while the titan guys and 1000's of zombies swarm the gates. How do you push out into that? What's the path to victory? I already had the best geared guys and vehicles and they just get mowed down every time I pushed forward. Possible fix?: Increase the cap to 120 for your forces.. or reduce the vehicle cap cost.. the apache is like 15. You can't make a good push with the cap we currently have. Second, I would cap the behemoths and the bird swarms. It's just to crazy when you see 12 flying cars just blowing up your helicopters and vehicles. They should also have a building that makes them so you know to focus them while doing a expedition or something along those lines. They just keep popping up out of the ground and doesn't seem fair. Conclusion: 7/10 I enjoyed my game, it took me a few attempts to figure out how to do the evacuations correctly. "not explained at all" while building the RTS portion of base defense. Love the big maps. Just need to focus on scaling progression of the infection and a path forward for the player in the end game of the level "example: StarCraft 2 carrier army to mop up the map or terrian battle cruisers."
I decided to support this game at full price after watching the developers' passionate updates on YouTube. It is a fantastic indie RTS with a lot of heart. While it still has some early-access rough edges, the core gameplay loop is incredibly fun and enjoyable. Highly recommended!
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!
good game
So... i get this big ♥♥♥♥♥♥' hulk stampeding at my defense line... and it gets 95% of its health shredded by the vulcan towers and the infantry and what not. But out of pure evolutionary superiority... the last 5% are like "Whatever... I just snack the players scientiest and the agent too although she(!) stunned me but whatever, I'm a super-infected hulk and I basically ♥♥♥♥ on those tactical things...!
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Trends
Concurrent players on Steam, sampled daily since tracking started.
Momentum
Pace estimated from the game's recent review growth (our daily snapshots) at its own sales-per-review ratio — a momentum signal, not booked sales.
Engagement
DAU/MAU are modeled from peak concurrent players (≈×8 and ×28) — Steam publishes no active-user counts, so treat these as rough estimates, not reported figures.
Audience
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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