You were watching the news with your dad one day, before an emergency warning was displayed. Every nuke in the world was let off and caused a mass extinction event, with 75% of life wiped out. The world is now a waistland. Every human is either a radiated monster called a fiend, or a ruthless survivor. Your dad was killed in the event, which is known as the cataclysm. You are now journeying across the waistland, with nothing but a gas mask, a pistol, and a flashlight. You enter a shelter.