Survival game in the context of "DayZ (mod)"

DayZ is a multiplayer online survival video game developed and published by Bohemia Interactive. It is the standalone game based on the mod of the same name for Arma 2. Following a five-year-long early access period for Windows, the game was officially released in December 2018, and was released for the Xbox One and PlayStation 4 in 2019.

The game places the player in multiple fictional countries, where a mysterious plague has turned most of the population into violent "infected". As a survivor, the player must scavenge the world for food, water, weapons, and medicine, while killing or avoiding the infected, and killing, avoiding, or cooperating with other players in an effort to survive the outbreak.

Fortnite is a 2017 online video game and game platform developed and released by Epic Games. It is available in seven distinct game mode versions that otherwise share the same general gameplay and game engine: Fortnite Battle Royale, a battle royale game in which up to 100 players fight to be the last person standing; Fortnite: Save the World, a cooperative hybrid tower defense-shooter and survival game in which up to four players fight off zombie-like creatures and defend objects with traps and fortifications they can build; Fortnite Creative, in which players are given complete freedom to create worlds and battle arenas; Lego Fortnite, an open world game collection divided between survival game Lego Fortnite Odyssey and social game Lego Fortnite Brick Life; Rocket Racing, a racing game; Fortnite Festival, a rhythm game; and Fortnite Ballistic, a tactical first-person shooter currently in early access. All game modes except Save the World are free-to-play.

Save the World and Battle Royale were released in 2017 as early access titles, while Creative was released on December 6, 2018. While the Save the World and Creative versions have been successful for Epic Games, Fortnite Battle Royale in particular became an overwhelming success and a cultural phenomenon, drawing more than 125 million players in less than a year, earning hundreds of millions of dollars per month. Fortnite as a whole generated $9 billion in gross revenue up until December 2019, and it has been listed among the greatest games of all time.

A battle royale game is an online multiplayer video game genre that blends last-man-standing gameplay with the survival, exploration, and scavenging elements of a survival game. Battle royale games involve dozens to hundreds of players, who start with minimal equipment and then must eliminate all other opponents while avoiding being trapped outside a shrinking "safe area", with the winner being the last player or team alive.

The name for the genre is taken from the 2000 Japanese film Battle Royale, itself based on the novel of the same name, which presents a similar theme of a last-man-standing competition in a shrinking play zone. The genre's origins arose from mods for large-scale online survival games like Minecraft and Arma 2 in the early 2010s. By the end of the decade, the genre became a cultural phenomenon, with standalone games such as PUBG: Battlegrounds (2017), Fortnite Battle Royale (2017), Apex Legends (2019) and Call of Duty: Warzone (2020) each having received tens of millions of players within months of their releases.

Arma 2 is a 2009 tactical shooter simulation video game developed and published by Bohemia Interactive for Microsoft Windows. It is the second main entry in the Arma series and the third installment in the series overall. The game is set in the fictional Eastern European country of Chernarus during a civil war between the Chernarussian government and communist revolutionaries, and follows escalating tensions when the United States Marine Corps is deployed to defeat the rebels.

Arma 2 was first released on 29 May 2009 in Germany, with further releases in Europe, North America, and other regions throughout June and July of that year. The game was positively received by critics who, like its predecessor Arma: Armed Assault, praised its realism and accuracy but criticized its difficulty and bugs. Arma 2 has sold 2.3 million copies as of February 2015. Arma 2 maintains a significant modding community and is well-known as the origin of DayZ, a survival game conversion that was later developed into its own standalone game in 2018 and contributed to the development of the battle royale game genre.