Protocol 86: Chernobyl

Recorded Steam activity

GaugeDB’s latest recorded Steam player count for Protocol 86: Chernobyl is 0 concurrent players (23 Oct 2026, 18:23). Its recorded 24-hour peak is 2 players. The highest count in GaugeDB’s collected history is 2 concurrent players on 22 Oct 2026.

Concurrent Steam players, not daily or monthly active users. Console and other launchers are excluded. Peaks cover GaugeDB’s recorded history.

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.

Steam store description