The Last of Us is a survival horror action-adventure game developed by Naughty Dog and published by Sony Computer Entertainment exclusively for the PlayStation 3. It was officially released worldwide on June 14, 2013. The player takes control of Joel, who is trekking across a post-apocalyptic United States in 2033, in order to escort the young Ellie to a friendly resistance group, the Fireflies. The player defends the characters against zombie-like creatures infected with the Cordyceps fungus, as well as hostile humans such as bandits and cannibals, employing the use of firearms and stealth aided by capabilities such as a visual representation of sound in order to listen for locations of enemies. The player can also craft weapons or medical items by combining items scavenged in the world.