I was born in Moscow, but I remember nothing of that time. I was just an infant when the old world was destroyed in the flames of nuclear fire. I, along with forty thousand others, were saved by retreating to the Metro stations, deep under the city. Now, twenty years had passed, and going up into the embrace of an endless winter was left to a few brave souls. The metro was our home, and our fortress against the nightmarish mutants who roamed the tunnels. Still, we never gave up hope that we would return to the surface. But one day, a new threat appeared, and we found ourselves in a war to determine the very existence of our species.