Protocol 86: Chernobyl
Released 24 September 2026 · PC · Adventure, Indie, Simulation
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.
Story
========================================= FILE: EMERGENCY_READ_ME_00.txt DATE: 04.11.1991 | TIME: 23:58 USER: PETROV_P (ID: 4421-B) STATUS: RESTRICTED_LOCAL_LINK ========================================= Unidentified units have infiltrated the facility. Explosions are erupting, and red alarm logs are flooding the system one after another. I can hear the boots in the corridor. Screams echo through the facility’s concrete walls. They came for us. I think they’re going to bury us beneath this concrete — along with every unknown and every secret we carry. There is something repeatedly mentioned in the logs: TROYKA. A secret Soviet underground research and experimentation facility established after the Chernobyl disaster. It was believed to have completely collapsed after the great destruction and explosions. But this place is still standing. These concrete walls are still breathing — resting above thousands of graves beneath them. Is this operation in the autumn of 1991 an attempt to bury the collapsing Soviets’ hidden crimes deep within history? Or has the Cold War turned hot? Or is this the beginning of a new world war? We don’t know what is happening out there. To...
Gameplay
========================================= FILE: EMERGENCY_READ_ME_00.txt DATE: 04.11.1991 | TIME: 23:58 USER: PETROV_P (ID: 4421-B) STATUS: RESTRICTED_LOCAL_LINK ========================================= Unidentified units have infiltrated the facility. Explosions are erupting, and red alarm logs are flooding the system one after another. I can hear the boots in the corridor. Screams echo through the facility’s concrete walls. They came for us. I think they’re going to bury us beneath this concrete — along with every unknown and every secret we carry. There is something repeatedly mentioned in the logs: TROYKA. A secret Soviet underground research and experimentation facility established after the Chernobyl disaster. It was believed to have completely collapsed after the great destruction and explosions. But this place is still standing. These concrete walls are still breathing — resting above thousands of graves beneath them. Is this operation in the autumn of 1991 an attempt to bury the collapsing Soviets’ hidden crimes deep within history? Or has the Cold War turned hot? Or is this the beginning of a new world war? We don’t know what is happening out there. To survive, you must use the terminals to find the exit. The .txt, .png, .wav, and .secret files within them are your only guides to the surface. Strange things are happening here. Things I cannot...
Features
- Single-player
- Steam Achievements
- Camera Comfort
- Stereo Sound
- Family Sharing
Release details
Protocol 86: Chernobyl is a Adventure, Indie and Simulation game by Core Interactive. Protocol 86: Chernobyl came out on Thursday, 24 September 2026 on PC. This date comes from Steam and was last checked on 24 September 2026.
Frequently asked questions
When did Protocol 86: Chernobyl come out?
Protocol 86: Chernobyl came out on 24 September 2026.
Which platforms is Protocol 86: Chernobyl on?
Protocol 86: Chernobyl is on PC.
Who makes Protocol 86: Chernobyl?
Protocol 86: Chernobyl is developed by Core Interactive.
What kind of game is Protocol 86: Chernobyl?
Protocol 86: Chernobyl is a game of these genres: Adventure, Indie and Simulation.