Protocol 86: Chernobyl — Steam game overview

Stored observation / content update: 2026-10-25T08:02:05.000Z

A terminal-driven psychological horror puzzle set in a secret Soviet underground research facility built after the 1986 Chernobyl disaster. Survive in procedurally shifting sectors using only the terminal. Type ‘help’ to begin.

Game metrics below are stored observations; missing values are unknown.

Revenue is modelled, not confirmed sales. See the methodology and uncertainty range.