Day Z for PC is a survival game set against the outbreak of the zombie apocalypse. It is located in a fictional area, the post-Soviet Chernarus (a portmanteau of Chernobyl/ Russia perhaps?), where the outbreak has seen most of the population become infected. The game is both first person and third person shooter multiplayer game.
The premise is simple: the player must survive and achieve his or her mission without being infected by the aggressive zombies. As with many survival games, the player starts off with the bare minimum: the clothes they stand up in, a road flare and a rag. Using these, the player must explore the large world around them, venturing (carefully) into buildings and houses in search of supplies which include food and water that are vital to staying healthy and alive.
Finding other garments allows the player to increase their carrying capacity so they can carry extra food, items to stay warm and weapons. Weapons tend to be melee weapons, but there are a small number of firearms to be scavenged too, so do keep your eyes open and explore each building and area of interest thoroughly