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Cepheus Protocol

Also known as Cepheus Protocol, cepheus protocol, cepheus-protocol

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Last update

14 May 2026

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0/wk

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Latest update

Recently shipped

Published 11 Apr 2026

Civilian Evacuation Changes Everything

[carousel autoadvance="true"][/carousel] 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. CER…

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Update archive

Browse 20 historical updates and patch notes for this game.

20shown

MediaVersionDateTypeSummaryAction
#F1A627 Mar 2026🎧 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…
v2.014 Mar 2026Phase 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…
v2026.3.707 Mar 2026[carousel autoadvance="true"]CERC Command Dispatch[/carousel] 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 int…
v2026.3.606 Mar 2026Developer 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 fini…
v2026.2.2827 Feb 2026Developer 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 implemen…
v2026.2.2020 Feb 2026Developer 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…
v2025.2.1313 Feb 2026Developer 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 savi…
v2025.2.1212 Feb 2026Developer 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 re…
v2025.2.707 Feb 2026Developer 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 dir…
v2026.01.3031 Jan 2026Patch 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…
#59BD17 Jan 2026Alright 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 i…
v2026.01.1011 Jan 2026The rebuild is now the default version of Cepheus Protocol, and the first 48 hours gave us exactly what we needed: a real stress test at scale. Discord playtests help, internal testing helps, but nothing compares to tho…
v2026.01.1010 Jan 2026The rebuild is now the default version of Cepheus Protocol, and the first 48 hours gave us exactly what we needed: a real stress test at scale. Discord playtests help, internal testing helps, but nothing compares to tho…
v2026.1.910 Jan 2026The rebuild is now the default version of Cepheus Protocol, and the first 48 hours gave us exactly what we needed: a real stress test at scale. Discord playtests help, internal testing helps, but nothing compares to tho…
#0A5F07 Jan 2026TLDR The Rebuild is now the standard installed version of Cepheus Protocol. The old version is now called Legacy, and it remains available as a Beta option. This rebuild was done to restore stability, improve performanc…
#471A15 Dec 2025Everything in This Post Is Playable Right Now in the Private Playtesting Branch Before diving in: everything outlined below is already live and playable if you opt into the Private Playtesting branch on Steam. No passwo…
v2025.11.2324 Nov 2025Patch Notes: Custom Game Options added to Pandemic it supports the following: Some Infected configurables We also added a new "presets" directory on our workshop expanding support for sharing presets. They are JSON file…
v2025.11.707 Nov 2025Patch Notes: [carousel autoadvance="true"][/carousel] If a unit is inside a vehicle and it dies and it will land in an unnavigable space by falling it will now kill that unit Improved the damage calculation to make unit…
#4F7107 Nov 2025A few times each week, our developers host public multiplayer sessions where we jump into the chaos ourselves—testing, refining, and showcasing the true state of the game. These sessions are open for everyone to join, c…