The post-apocalyptic world is not at all attractive and almost uninhabitable, but the hero of the game Duo Survival, a retired special forces soldier, does not want to believe that everything is over. He intends to correct the situation. The hero managed to get into the secret laboratory, thanks to the disabled alarm. There he found the professor’s notes; it was his work that led to the emergence of the zombie virus and grave consequences. But there, in the notebook, the hero also found salvation. There is a vaccine and the scientist’s granddaughter can prepare it. She was found quite quickly and saved from a zombie attack. All that remains is to get to a safe place and prepare the vaccine. Help the two surviving representatives of humanity who can save him in Duo Survival.