Bohemia Interactive in the context of Mod (video gaming)

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.

DayZ is a multiplayer open world survival third-person shooter modification designed by Dean Hall for the 2009 tactical shooter video game Arma 2 and its 2010 expansion pack, Arma 2: Operation Arrowhead. The mod places the player in the fictional post-Soviet state of Chernarus, where a mysterious plague has infected most of the population, turning people into violent zombies. As a survivor with limited resources, the player must scavenge the world for supplies such as food, water, weapons and medicine, while killing or avoiding both zombies and other players, and sometimes non-playable characters, in an effort to survive the zombie apocalypse.

DayZ has been praised for its innovative design elements. The mod reached one million players in its first four months on August 6, 2012, with hundreds of thousands of people purchasing Arma 2 just to play it. In response to its popularity, Bohemia Interactive made a standalone game based on the mod. The mod itself remains in continued development by its community.

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.