Welcome to Earth 2025

Hello, Worker Number 472, welcome to Earth. Recently, the Earth has experienced a tragic fallout that caused millions of people to turn into radioactive 'doppelgangers' with a contagious illness that could kill the rest of the population. Our job at the US Agency of Doppelganger Containment or USDC, is to help survivors and identify doppelgangers and treat them in the containment unit. You have been given a manual that you can use to identify doppelgangers that you may access any time. You start directly after the briefing.