Games like Cepheus Protocol

The closest matches to Cepheus Protocol: Infection Free Zone, Survivalist, Atom Zombie Smasher, They Are Billions, and State of Decay 2: Juggernaut Edition. Ranked by imho.run from Steam co-play data, shared tags and reviews.

If Cepheus Protocol is your kind of game, the closest matches are Infection Free Zone, Survivalist and Atom Zombie Smasher — picked from the ranked list below. Reviewers describe it as atmospheric, challenging and contemplative, and single out its base building and civilian management. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

Cepheus Protocol is a 2020 open-world RTS survival game developed by Halcyon Winds, set during a post-apocalyptic zombie outbreak where players command CERC forces hunting Patient Zero. The game blends action and strategy through base-building, an operator system, and pathfinding AI, while demanding players manage civilians and evacuation logistics alongside supply lines. Reviewers highlight how civilian evacuation adds unique strategic depth, and players describe multiple playstyles fitting any strategy alongside atmospheric post-apocalyptic tension. The operator system enables deep unit customization that players find meaningful, and the game supports online co-op. Currently priced at $19.99 USD, it holds a 79% positive rating from 1,948 Steam reviews and runs Playable on Steam Deck, offering a challenging medium-length experience.

About Cepheus Protocol: 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.