The subject: Protocol zero
The subject: Protocol zero - Steam Charts & Historical Stats
Turn on your camera. Explore historical player activity and pricing for The subject: Protocol zero. Player-count data was last observed Sep 28, 2026.
The subject: Protocol zero player count and price summary
- Current players
- Unavailable
- All-time peak
- Unavailable
- 24-hour player change
- Unavailable
- Current US price
- $1.99
Player count last observed . Values marked unavailable are not estimated.
Media gallery 6 screenshots · 1 videos
Screenshots
Videos
The subject: Protocol zero - Official trailer
Game Insights
Buy Verdict
Decent deal at 0% off, but might drop further. Watch for better opportunities.
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Price History
System Requirements
- Requires a 64-bit processor and operating system
- OS: Windows 10 (64-bit)
- Processor: 3.30GHz
- Memory: 8 GB RAM
- Graphics: NVIDIA GTX 1550 / AMD RX 550
- Requires a 64-bit processor and operating system
- Memory: 16 GB RAM
Additional Information
*languages with full audio support
Current Pricing
Additional Information
Developer Analytics
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About This Game
Turn on your camera. The Null Institute 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.
Detailed Description

Turn on your webcam. Allow access to your microphone. The experiment begins.
You have become the first subject in the final phase of the Null Institute Protocol Zero trials. The goal is to objectively measure the limits of human self-control. The reward is first. The method is full monitoring. Your task is to complete four stages, adhering to absolute rules. Your body is the primary variable in this equation.

Full tracking system
This experience is only possible with an active webcam and microphone. The game analyzes the video stream and audio from your devices in real time. The mechanics are built not on button presses, but on physical inactivity, precise movements, and absolute concentration. The system records blinking, lip movements, silhouette movements, and hand trajectories. Any violation is a critical failure and results in immediate termination of the experiment.

You are Subject Zero.
You have signed a contract with a foundation renowned for its neurological research. You are the first and key participant. Your codename is Protocol Zero. You are not given the ability to know what came before or what will come after. As the trials progress, through voice instructions and snippets of data, the true scope of the study will be revealed to you, where the subject's resilience is just one of many measurable parameters.
