Areas with a special selection of zombies, like : Health club, high concentration of fast "or, and" tough zombiesHospital , zombies disease spreadersPolice Department, zombies with ballistic armoursDistrict of buildings 3~7 floors, high density of zombiesThis can be attractive for the player to move and create bases in other areas looking for challenge It will to create more variety of stories for future NPCs Indie Stone will can expand the map to create more quests or sell expansions of this endless game