Game overview
Cepheus Protocol
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.
- Last tracked players
- 48
- All-time peak
- 125
- 24-hour change
- Unavailable
- Steam reviews
- 79% positive 3,032 reviews · via SteamSpy
Delayed observation · last tracked . Values marked unavailable are not estimated.
About this game Read the full description
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?
Hardcore RTS Military Combat Meets Survival Horror
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.
Dynamic Gameplay Systems
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.
Innovative Mechanics and Features
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.
Destroy the Infection
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.
Planned Features
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
Media gallery 41 screenshots · 0 videos
Screenshots
Player activity
Concurrent players over the last 48 hours.
Price history
Last 30 days ? prices in the selected region?s currency.
System requirements Windows
Windows
Minimum
Minimum:- Requires a 64-bit processor and operating system
- OS: Windows 10/11 (64-bit)
- Processor: Intel® Core™ i5-4500K
- Memory: 8 GB RAM
- Graphics: NVIDIA GeForce 1060 GTX or AMD Radeon Equivalent 4 GB
- DirectX: Version 12
- Storage: 8 GB available space
- Sound Card: Direct X Compatible
- Additional Notes: **recommended SSD install for optimal performance
Recommended
Recommended:- Requires a 64-bit processor and operating system
- OS: Windows 10/11 (64-bit)
- Processor: Intel® Core™ i7-6770K / AMD Ryzen 5 1500X
- Memory: 16 GB RAM
- Graphics: NVIDIA GeForce 2060 GTX or AMD Radeon Equivalent 6GB VRAM
- DirectX: Version 12
- Storage: 8 GB available space
- Sound Card: Direct X Compatible
- Additional Notes: **recommended SSD install for optimal performance
Game details Languages, features & support
- Publisher
- Halcyon Winds
- Brazilian rating
- 14
- Steam Germany rating
- 16
- Achievements
- 5
- Controller support
- partial
- Features
- Single-player, Multi-player, MMO, Co-op, Online Co-op, Steam Achievements, Steam Trading Cards, Steam Workshop, Adjustable Text Size, Camera Comfort, Custom Volume Controls, Adjustable Difficulty, Playable without Timed Input, Save Anytime, Stereo Sound, Surround Sound, Partial Controller Support, Steam Cloud, Remote Play Together, Family Sharing
- Languages
- English*, Simplified Chinese, Korean, German, Japanese, Russian, Spanish - Spain, Portuguese - Portugal, French
*languages with full audio support - Website
- Official website ↗
- Support
- [email protected] Support site ↗
Compatibility & accessibility Steam Deck, controllers & access features
Can I Play This?
Steam declarations and Valve's Steam Deck compatibility result. Missing data is shown as unknown, never unsupported.
Developer-declared accessibility on Steam
Features not declared by the developer are not labeled unsupported.
Structured language support (9)
| Language | Interface | Full audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes | No |
| Simplified Chinese | Yes | No | No |
| Korean | Yes | No | No |
| German | Yes | No | No |
| Japanese | Yes | No | No |
| Russian | Yes | No | No |
| Spanish - Spain | Yes | No | No |
| Portuguese - Portugal | Yes | No | No |
| French | Yes | No | No |
Third-party requirements shown by Steam
More analysis Activity patterns, updates & developer tools
Game Insights
Buy Verdict
Wait for upcoming sale in ~13 days for potentially better pricing.
Value Score
Price-to-player ratio ranks in the 80th percentile. Priced as Market at $19.99.
Genre Benchmarks
Early Access Active
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