Project Vostok: Episode 1

"Project Vostok" is a non-linear horror visual novel about a group of airplane crash survivors finding a mysterious Soviet-era bunker in Russian mountains.

A plane flying from Moscow to Barnaul crashes in the Altai Mountains because of a crew error. Almost two dozen strangers are left there to survive. An indefinite list of their problems includes injuries, lack of food, risk of being frozen to death, and conflicts inside the group.