The Last of Us: Left Behind was highly anticipated due to the critical acclaim received by The Last of Us. It was included in The Last of Us Part I, a remake of the game released on PlayStation 5 in September 2022 Windows in March 2023. Left Behind was released worldwide on Februfor the PlayStation 3 it was later bundled with The Last of Us Remastered, an updated version of the game released for the PlayStation 4 on July 29, 2014, and then released as a stand-alone expansion pack for both consoles on May 12, 2015.

The game also features a crafting system, allowing players to customize weapons through the upgrades. Players can use 'Listen Mode' to locate enemies through a heightened sense of hearing and spatial awareness. The game is played from a third-person perspective players use firearms, improvised weapons, and stealth to defend against hostile humans and zombie-like creatures infected by a mutated strain of the Cordyceps fungus. Set in a post-apocalyptic world, the game switches between two stories: the first, set three weeks before the events of The Last of Us, follows Ellie as she spends time with her best friend Riley in an abandoned mall in Boston the second takes place between the Fall and Winter chapters of The Last of Us and focuses on Ellie's attempts to scour an abandoned mall in Colorado for medical supplies to heal Joel while dealing with enemies. It is a downloadable expansion pack to the 2013 game The Last of Us. The Last of Us: Left Behind is a 2014 action-adventure game developed by Naughty Dog and published by Sony Computer Entertainment.

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