Ten years ago, two methane explosions occurred at the Raspadskaya mine. So, at least they tell everyone. The true causes of the disaster have not been established. The explosion killed 91 people, more than a hundred were injured. The bodies of the 11 victims were never found. They were declared missing.
Five years ago, the mine was restored, but not for long. Before the descent of the first brigade, the radio on duty detected a strange beacon signal - the callsigns used by the miners before the explosions four years ago. They did not attach any importance to this, the work continued, but an hour later the connection with the brigade was cut off. The mine devoured brigades one after another, and superstitious workers began to call it "The Road to the Underworld." You are the last brigade of volunteers who volunteered to go downstairs and learn about the fate of your comrades. You have exactly one hour to return to the surface, otherwise the mine will be mothballed, and you will join the number of restless souls living in the Underworld.