Game Detail
Cepheus Protocol
App ID 979640 | Recorded March 26, 2026 at 01:16 AM
Action, Adventure, Indie, Massively Multiplayer, RPG, Simulation, Strategy, Early Access
Categories: Single-player, Multiplayer, 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
Release date: May 15, 2020
Developer/Publisher: Halcyon Winds / Halcyon Winds
Mostly Positive 77% · 2,383 reviews
Short description
Official Steam summary
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.
Current price
$15.99
All-time low
$15.99
12-month low
$15.99
Verdict
Buy now
Within 0% of the all-time low.
Price chart (last 2 years)
View all-time lowsTop reviews
View on Steam110 helpful
I really want to like this game, but I've come back to it several times since its release to see no real sign of improvement. Despite the recent rebui...
47 helpful
The game has a lot of potential, but it also has several major issues that need to be addressed. Since I started playing, the game has gone through ab...