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Patient Zero

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About Patient Zero

Patient Zero is a cooperative horror game for 1–6 players, set during the first hours of an outbreak. You are part of a response team sent into active quarantine zones to find viral epicenters, contain the infection and evacuate before the area is wiped clean with you still inside. Death is permanent for the run.

The outbreak

Through sealed facilities, emergency logs and abandoned extraction points, you uncover how the virus escaped, who authorized it and why some areas were never meant to be contained. You are not heroes sent to save the world, but a team tasked with containing an outbreak and deciding what must be sacrificed to stop it.

Contain and evacuate

You scan environments to identify active infection zones, secure access points and plant containment bombs before the situation escalates. Then you hold your ground as the area destabilizes and evacuate before the quarantine protocol activates. Failing to extract in time means the zone is wiped clean with you inside.

Cooperative survival

The game supports 1–6 players and includes proximity voice chat. The infection can hear you, as can other threats, so communication matters. You can stick together or split up, risking the permanent loss of teammates; when a player dies, they are gone for that run.

Escalating threats

The virus mutates and grows more aggressive with each phase. Environments degrade, lights fail and escape routes collapse, while containment becomes harder the closer you get to success. Limited-use containment gear can slow or redirect threats, and environmental interactions can create temporary advantages. There are no overpowered weapons: your role is to contain, not fight, and every item you bring has a cost.

Changing runs

Infection locations and objectives are randomized, and unpredictable events change from run to run. The longer you stay, the worse conditions become, so each extraction calls for quick decisions.

Frequently asked questions

Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.

Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.

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