It is the year 20XX. In the grim aftermath of Judgment Day, a small band of survivors have fled into the toxic wasteland of the Exclusion Zone and taken refuge in a network of abandoned subterranean shelters. Underground, the survivors huddle together to form what may be humanity's last city on Earth. Here, we collect and protect the seeds of civilization, and wait for the day we return to the surface. Welcome to Souterra.