Steam Deck compatibility
Cepheus Protocol
Sale ends Jul 9, 2026, 5:00 PM UTC
Mostly Positive-20%
$19.99
$15.99
- Release date
- May 15, 2020
- Steam Cloud
- Steam Cloud
Playable
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.
- Developer
- Halcyon Winds
- Publisher
- Halcyon Winds
- Franchise
- Cepheus Protocol