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The Subject: Protocol Zero key art

The Subject: Protocol Zero

The Subject: Protocol Zero came out for PC on 10 Mar 2026.

Turn on your camera. The Kessler Foundation is paying for your pain. The game uses your webcam and microphone, turning the room into a lab. Complete four stages: from the blink ban to the "Green Light, Red Light" game. Money or sanity? Be the first to complete Protocol Zero. If you dare.

Genres
Puzzle, Simulator, Adventure, Indie
Themes
Action, Horror

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