Lone Survivor is an independent survival horror video game developed by Superflat Games. It was originally released for Microsoft Windows and OS X in 2012. It was later ported to the PlayStation 3 and PlayStation Vita and released on the PlayStation Network in 2013 as Lone Survivor: The Director's Cut.

The Director's Cut came out on Microsoft Windows and OS X as a free update on 31 October 2013. In October 2014 the game was also made available for the PlayStation 4 and Wii U. The title will be released in physical format on PlayStation 4 and PlayStation Vita on December 30, 2016 through Limited Run Games.

Gameplay
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Lone Survivor is a post-apocalyptic survival horror game with retro-styled 2D graphics in which the player controls a nameless protagonist following directions provided by the character's apparent hallucinations. When exploring the game world the player will discover items, keys and food. The correct use of each item and key must be determined in order to solve the game's puzzles. Certain food types can be improved by cooking and/or combining them with others. Two-way mirrors found in the game world are used to teleport back to the survivor's apartment. Players possess a flashlight with which to navigate the game world; using the flashlight drains batteries; replacements can be found by scavenging. Mutants must be avoided or killed; a pistol must be found in order to attack mutants, but ammunition is scarce. When the pistol's magazine is empty the survivor automatically loads a new magazine, leaving him open to attack during the process. Mutants are attracted to light and noises, but the player can sneak past by hiding in the shadows. The game features a map for players to navigate with, however the game does not pause when the game's menus or map are accessed, leaving the survivor vulnerable.

The survivor's apartment serves as a hub; the player must return with food in order to survive, as well as sleep. Sleeping prevents madness and is also required to save the player's progress. It is possible to combat lack of sleep with pills; these further damage the survivor mentally but the resultant hallucination may result in extra supplies appearing in the survivor's backpack. Progression through the game requires exploration, which fills out the map; sometimes specific items must be located in order to proceed further. Failing to locate these items can result in resources being spent without new areas being opened up, making future attempts more difficult.

The player's interactions with the game's world and inhabitants result in different endings upon completion of the game. These are shown during the game's end credits, emphasizing how the player received that particular ending. A single playthrough of the game can last between three and eight hours.