Creates a zombie apocalypse survival experience with a pregenerated large city featuring hospitals, neighborhoods, apartments, stores, and tall buildings. Includes custom melee and ranged weapons such as knives, pocket knives, handguns, and crowbars, each with unique attack damage values. Scattered loot chests contain leather armor, food, weapons, and apocalypse-themed supplies. Hospitals, three per city, contain cures for zombie infection. Players must scavenge, fight infected hordes, and manage infection status while exploring the detailed urban environment.