Cepheus Protocol
Playing now
74+15 vs. yesterday
20%of peak
All-time peak
378Oct 2021
Playing now
74+15 vs. yesterday
All-time peak
378Oct 2021
| Published | Kind | Announcement | Build |
|---|---|---|---|
| In-game event | 2026.8.4.1 + 4.2 Experimental and Normal Patch Notes THE BAY AREA IS COLLAPSING. The virus is loose across the peninsula. Flashpoints are erupting across the region as entire districts fall into chaos and infected swarms push deeper into civilian zones. CERC forces are already in the field. Embedded military reporters and frontline operators are transmitting battlefield coverage directly from active operations. The images you are about to see wer… | 24564529 | |
| Major update | 2026.7.31.3 Quality of Life Update Live + GPU Fog of War Tonight on Experimental THE BAY AREA IS COLLAPSING. The virus is loose across the peninsula. Flashpoints are erupting across the region as entire districts fall into chaos and infected swarms push deeper into civilian zones. CERC forces are already in the field. Embedded military reporters and frontline operators are transmitting battlefield coverage directly from active operations. The images you are about to see wer… | 24503965 | |
| In-game event | 2026.7.27 CERC OPS Arrives on Experimental Plus Major Fixes The virus is loose across the Bay Area. Flashpoints are erupting across the peninsula as entire districts fall into chaos and infected swarms push deeper into civilian zones. CERC forces are already in the field. Embedded military reporters and frontline operators are transmitting battlefield coverage directly from active operations. The images you are about to see were captured during recent c… | 24424653 | |
| Community | World Reveal of CERC Ops This Saturday! |
Announcements are the developer’s own posts to the game’s Steam news feed: updates and their patch notes, in-game events, releases and sales. The important ones are marked on the players chart.
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| Community | Massive Performance Gains and Smarter Fog of War Are Coming The virus is loose across the Bay Area. Flashpoints are erupting across the peninsula as entire districts fall into chaos and infected swarms push deeper into civilian zones. CERC forces are already in the field. Embedded military reporters and frontline operators are transmitting battlefield coverage directly from active operations. The images above were captured during recent combat deploymen… | — |
| In-game event | 2026.7.11 AI, Performance & Helicopter Systems Update on Experimental The virus is loose across the Bay Area. Flashpoints are erupting across the peninsula as entire districts fall into chaos and infected swarms push deeper into civilian zones. CERC forces are already in the field. Embedded military reporters and frontline operators are transmitting battlefield coverage directly from active operations. The images you are about to see were captured during recent c… | 24165159 |
| In-game event | 2026.6.19.5 Discord Integration Fixes + Launcher The virus is loose across the Bay Area. Flashpoints are erupting across the peninsula as entire districts fall into chaos and infected swarms push deeper into civilian zones. CERC forces are already in the field. Embedded military reporters and frontline operators are transmitting battlefield coverage directly from active operations. The images you are about to see were captured during recent c… | 23827827 |
| In-game event | 2026.6.18.2 Weather System, Discord, Vehicles, and Pandemic Fixes The virus is loose across the Bay Area. Flashpoints are erupting across the peninsula as entire districts fall into chaos and infected swarms push deeper into civilian zones. CERC forces are already in the field. Embedded military reporters and frontline operators are transmitting battlefield coverage directly from active operations. The images you are about to see were captured during recent c… | 23815148 |
| In-game event | 2026.6.11.1 QOL Improvements and Bug Fixes The virus is loose across the Bay Area. Flashpoints are erupting across the peninsula as entire districts fall into chaos and infected swarms push deeper into civilian zones. CERC forces are already in the field. Embedded military reporters and frontline operators are transmitting battlefield coverage directly from active operations. The images you are about to see were captured during recent c… | 23675084 |
| Major update | 2026.6.8.2 Civilian Evacuation Live On Public Civilian Evacuation Is Now Live On Public Civilian Evacuation has now moved from Experimental into the default Public install of Cepheus Protocol. For the last few weeks, players have been able to test the system on Experimental while we continued working through the core loop, save/load behavior, multiplayer support, civilian flow control, intake behavior, and the wider session reliability iss… | 23630832 |
| In-game event | 2026.6.2.1 : Now out! The virus is loose across the Bay Area. Flashpoints are erupting across the peninsula as entire districts fall into chaos and infected swarms push deeper into civilian zones. CERC forces are already in the field. Embedded military reporters and frontline operators are transmitting battlefield coverage directly from active operations. The images you are about to see were captured during recent c… | 23537463 |
| Game update | 2026.5.30.6.2 : Hotfix The virus is loose across the Bay Area. Flashpoints are erupting across the peninsula as entire districts fall into chaos and infected swarms push deeper into civilian zones. CERC forces are already in the field. Embedded military reporters and frontline operators are transmitting battlefield coverage directly from active operations. The images you are about to see were captured during recent c… | 23497255 |
| In-game event | 2026.5.30.6: Evacuation Waystations and Efficiency Controls The virus is loose across the Bay Area. Flashpoints are erupting across the peninsula as entire districts fall into chaos and infected swarms push deeper into civilian zones. CERC forces are already in the field. Embedded military reporters and frontline operators are transmitting battlefield coverage directly from active operations. The images you are about to see were captured during recent c… | 23490447 |
| In-game event | 2026.5.24.1 & The Next 60 Days of Cepheus Protocol The virus is loose across the Bay Area. Flashpoints are erupting across the peninsula as entire districts fall into chaos and infected swarms push deeper into civilian zones. CERC forces are already in the field. Embedded military reporters and frontline operators are transmitting battlefield coverage directly from active operations. The images you are about to see were captured during recent c… | 23389419 |
| Major update | 2026.5.22.9 Experimental Civilian Evacuation Preview, SF North Live Update On Progress… Live on Experimental Civilian Evacuation Mechanics Progress Update This month’s update is focused on two major pieces of the rebuild: Civilian Evacuation and San Francisco North . Civilian Evacuation is entering Experimental as an early preview, and San Francisco North is being included as an early incubator look at the future Bay Area map. Both are playable early because th… | 23369103 |
| Community | Civilian Evacuation Changes Everything The virus is loose across the Bay Area. Flashpoints are erupting across the peninsula as entire districts fall into chaos and infected swarms push deeper into civilian zones. CERC forces are already in the field. Embedded military reporters and frontline operators are transmitting battlefield coverage directly from active operations. The images you are about to see were captured during recent c… | — |
| Community | Phase 3 is fully underway, and the end is in sight 🎧 Last Time on CERC HQ… Cepheus Protocol | CERC HQ | # 84 Civilian evacuation is finally coming together, and it’s reshaping how every system in the game connects. Phase three kicks off with a full evacuation framework. You can now purge or relocate entire buildings, shift populations between zones, and manage reputation based on your decisions. A new civilian hold system tracks infected, dead… | — |
| Esports | CERC HQ Stream Tonight | Phase 2 Wrap Up and Civilian Evacuation 2.0 Phase 2 is coming to a close within the next 24 hours as we finish the final adjustments to the bird systems. With that work wrapping up, development is already moving forward into the next major system update. Civilian Evacuation 2.0 Civilian Evacuation 2.0 is a complete revamp of legacy systems built on several years of community feedback. The upcoming development cycle is focused on deliveri… | — |
| In-game event | 2026.3.7 Vehicle Pathing Improvements & Helicopter tweaks CERC Command Dispatch The virus is loose across the Bay Area. Flashpoints are erupting across the peninsula as entire districts fall into chaos and infected swarms push deeper into civilian zones. CERC forces are already in the field. Embedded military reporters and frontline operators are transmitting battlefield coverage directly from active operations. The images you are about to see were ca… | 22244860 |
| In-game event | 2026.3.6.1 Revised Power Balance and Bug Fixes Developer Update This Week This week was focused on stability, balance, and finishing key systems before the next big push. Last week we laid the foundation with client side prediction for projectiles. This week we finished the remaining save system work tied to that update and continued pushing through bugs, reports, and gameplay concerns raised by the community. Save System Completed The save… | 22237727 |
| In-game event | 2026.2.28.2 Live on Experimental, March is Civilian Evac Month Developer Update This Week Save and Load System Expansion Continued System Coverage This week was heavily focused on expanding Save and Load support across additional systems. Save and Load support has now been implemented for: · Projectiles · Grenades · TOW systems · Flares · Select airstrikes Not all airstrikes are currently supported. The following are not yet saving and loading correctly :… | 22135478 |
| In-game event | 2026.2.20.1 – Difficulty and Pacing Controls Now Live Developer Update This Week Save and Load System This week was overwhelmingly focused on Save and Load. A significant amount of time went into stabilizing the system, resolving reported issues from Discord and Steam, and expanding coverage across edge cases. The Operator in particular required more time than expected due to the complexity of his systems. Operators are highly dynamic. If an Opera… | 22026889 |
| In-game event | 2025.2.13.1 – Pandemic Save UI Live + Pathfinding AMA Tonight Developer Update This Week Second pass of the Pandemic Save System is now live on all branches , including the full Save and Load UI. The first pass went live last Friday through a console command. This update moves saving and loading into a proper UI across all branches so everyone can use it normally while we continue hardening the flow. · Save + Load UI is live on all branches · Load menu sh… | 21927954 |
| In-game event | 2025.2.12.1 Pandemic Save UI Live on Experimental + Pathfinding Sit-Down Developer Update This Week We shipped the second pass of the Pandemic Save System, which adds the Save and Load UI on Experimental. The first pass went live Friday through a console command . This pass moves it into a real UI so you can actually use it without commands, and we can start hardening the full user flow. · Save + Load UI is live on Experimental right now · We are cleaning up the UI,… | 21902599 |
| In-game event | 2025.2.7 Update: Pandemic Saves, Rehostable Co-op, Rebuild Proof Developer Update This Week This week was about momentum and payoff. Coming straight off the Doctrines release, we were able to get a workable first pass of Pandemic saves running within about a week. That speed is a direct result of the rebuild work done throughout 2025. The foundation now allows us to ship meaningful systems quickly, efficiently, and without destabilizing the game. Pandemic sa… | 21830852 |
| Major update | 2026.01.30.3 Doctrines Have Arrived (Shared Progression Is Now Live) Patch Notes Summary (Jan 16 → Jan 30) AI + Vehicle Pathing · Improved ground vehicle pathing to reduce crashes and unnecessary driving through landscape objects. They should be a lot more intentional for when they decide to kool-aid man through walls · Fixed large vehicles attempting to route through infantry-only gates · Cleaned up navigation and collision in key zones (HMB + Treasure Island c… | 21711719 |
| In-game event | Doctrine Preview on Experimental This Weekend (Dev Report Friday) Alright everyone, quick report based off Friday in terms of what’s going on. We’re releasing an early preview of some of the Doctrine changes on Experimental going into this weekend, and I highly recommend people jump in and try it out. This is an early drop to let you guys test the mechanics early, find issues, and help us validate performance before the UI goes live. Screenshot contest on Dis… | 21534842 |