PC $1.99 Region US
Games Action The subject: Protocol zero
Mature content
Action · Savich18

The subject: Protocol zero

The subject: Protocol zero
Mature content
Windows
1 user reviews · 100% of 1
DeveloperSavich18
GenreAction
Wait Chip's verdict · US updated 57 min. ago

Good game, but it sits 100% of the way from its all-time low to full price. It drops harder in seasonal sales. Patience pays.

Why this verdict
Price position between all-time low and full price 100%
All-time low $0.99 · 6d ago
Player reviews 100% positive of 1
Quality score 100/100 · small sample
Value score 0/100

Offers

Accepted regional prices from official stores

Official stores (1)
steam
checked 57 min. ago Best price
steam, Official, $1.99
$1.99 Buy at steam
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About this game

What this game is, in the developer's words

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.

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.

Go through four phases, each testing different aspects of your control. Breaking any rule ends the session.

Stage 1

The system monitors your blink rate by analyzing the camera image. Your task is to not blink for a set period of time. The sensors will detect any eyelid movement. A tear rolling down your cheek is also considered a violation.

Stage 2

You must maintain a completely still posture and remain silent. Software analysis will compare your silhouette with the original position and record any shifts. The microphone will record any sound above the background level, including breathing and random noises.

Stage 3

A sequence of gestures will be briefly displayed on the screen. You must reproduce it precisely, in the correct order, and within a limited time. Computer vision will compare the trajectory and position of your hand with the reference model. A mismatch will result in a crash.

Stage 4

You will be given a command to move or freeze depending on the signal (green or red light). The system continues to monitor your immobility through the camera during the "red light" phase. An incorrect response to the signal or movement during the prohibited phase will be considered a failure.

Media

Trailers and screenshots straight from the store page

The subject: Protocol zero screenshot 1
The subject: Protocol zero screenshot 2
The subject: Protocol zero screenshot 3
The subject: Protocol zero screenshot 4
The subject: Protocol zero screenshot 5
The subject: Protocol zero screenshot 6

Price intelligence

Accepted price history and the lows that matter

Historical lows
All-time low ATL $0.99 2026-07-07
3-month low $0.99
12-month low $0.99
Current $1.99
Price events From the accepted price history · updates automatically
Jul 11, 2026
Sale ended · back to $1.99
Jul 7, 2026
Sale started · -50% to $0.99
Jul 7, 2026
New all-time low $0.99

The subject: Protocol zero price history and best deals

The subject: Protocol zero for PC currently sells from $1.99 at authorized stores. Its all-time low is $0.99, set on 2026-07-07.

Frequently asked questions

Answered from this game's own price and edition data

Should I buy The subject: Protocol zero now or wait?
Our verdict is wait. At 100% of the way to full price, it usually drops harder in seasonal sales, so patience tends to pay.
Is $1.99 a good price for The subject: Protocol zero?
$1.99 sits 100% of the way from the all-time low of $0.99 to the full price. It has been cheaper before, so there is room to wait.
Where can I buy The subject: Protocol zero?
The subject: Protocol zero is tracked at steam. We only list authorized stores here and always link out with a clean outbound link.
Scores
Steam reviews 1 user reviews · 100%
Media (6)
Tech
Requirements
System requirements platform
Minimum
Minimum:
  • 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
Recommended
Recommended:
  • Requires a 64-bit processor and operating system
  • Memory: 16 GB RAM
Minimum
Minimum:
    Recommended
    Recommended:
      Minimum
      Minimum:
        Recommended
        Recommended:
          Facts
          DeveloperSavich18
          PublisherSavich18-Games
          ModesSingle-player
          Links
          Ratings
          dejus14
          igrs18
          steam_germany16
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