Cepheus Protocol

Halcyon Winds

Released
May 15, 2020
Platforms
Windows
Last updated
Wishlist on SteamAdd it on the Steam store page. Opens in a new tab.
WatchSet price alert

Screenshots & trailers

Cepheus Protocol Exodus Trailer (Legacy)

1 / 43
Latest player count
Positive reviews
75%
3,758 total reviews
Steam hub followers
View follower history
United States store
$19.99
Compare regional prices

Player history

Loading chart…
24-hour peak
101
All-time recorded peak
101
Tracking since

Twitch

0 viewers · 0 channels

Streams & history

Kick

No stream history yet.

Streams & history

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.

Deck compatibility
playable

Price history

All prices
Recorded price history in the selected store currency
Date observedRegionRegular priceFinal priceDiscount
US · USD$19.99$19.99

Recent updates

All updates
  1. Developer post

    2026.9.4 Experimental Patch Notes & September Development Update

    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

  2. Developer post

    2026.8.21.1 Experimental Patch Notes & August Development Update

    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

  3. Developer post

    2026.8.13.1 Now Out: Final Push to Escalation

    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