When Did Protocol 86: Chernobyl Come Out?

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Protocol 86: Chernobyl was released on Thursday, September 24, 2026 — 20 days ago.

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Protocol 86: Chernobyl was released on Thursday, September 24, 2026. Protocol 86: Chernobyl was released on Thursday, September 24, 2026. Protocol 86: Chernobyl was released on Thursday, September 24, 2026. Protocol 86: Chernobyl was released on Thursday, September 24, 2026. Protocol 86: Chernobyl w

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. Protocol 86: Chernobyl is developed by Core Interactive. Steam files it under Adventure, Indie, Simulation, Strategy.

Protocol 86: Chernobyl was released on Thursday, September 24, 2026.

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Release dates and exact unlock times come from Steam and SteamDB, rechecked every day. Page updated October 14, 2026.

When Did Protocol 86: Chernobyl Come Out?

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