Dial M for Machina

Summary

After nuclear war, the remaining survivors of humanity are secluded to bunkers deep down the Earth, and you are one of them. Using only retro technology, you must connect with other survivors and help them stay alive. You must solve puzzles, decipher cryptic broadcasts and uncover strange incoming messages. Every action you take through these systems has consequences. Handle 5 days of underground isolation and help as many people as you can.