The game includes two large story campaigns. Each one will help a player to discover the reasons for the catastrophe that happened in the Zone. Players will find other survivors, they will try to set up contact with them and will even meet the military, which may be even more dangerous than facing a couple of dozen mutants. Players will need to crack the coded locks and gain access to secret bases, constantly monitoring the character’s health and sanity to stay alive and find a way out of Zone.