Turn on your webcam. Allow access to your microphone. The experiment begins.

You have become the first subject in the final phase of the Kessler Foundation's 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.

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.

IMPORTANT: Read before purchasing.

This game is not a standard horror game. Its goal is not to scare you with jump scares or make you "wet your pants." "Protocol Zero" is a technological simulator, a horror experiment created to demonstrate how far progress has come by 2025.

For the first time, eye-tracking technologies, micro-movement analysis, and real-world interaction with the player's environment via a webcam have been combined and amplified in a single project. This isn't about "horror stories"—it's about how far experiments with human attention and endurance can go.

The price is justified by the complexity of the implemented systems (yes, I think $2 is fair). This isn't just an evening's entertainment, but an experience that will make you look at your computer's camera differently.

— Sole Developer