Video game clone grouped as "Myst clones". Some video game genres are founded by archetypal games of which all subsequent similar games are considered derivatives; notably, early first-person shooters were often called ""Doom" clones", while the success of the open-world formula in "Grand Theft Auto" led to the genre of GTA clones. The genre of endless runners is based on the success and simplicity of the game "Canabalt". In these cases, games that are "clones" of another are generally not implied to have committed any intellectual property infractions, and otherwise considered legally acceptable practices, although calling such games clones is generally considered derogatory.
Anti-Aircraft (video game) Anti-Aircraft (video game) Anti-Aircraft is a two-player arcade game by Atari, Inc, originally released in 1975. The game is sometimes referred to as Anti-Aircraft II, denoting the two-player aspect of the game. Planes fly overhead, either singly or in pairs, in random directions in the aircraft flight area. The object is to shoot down more planes than the player's opponent during the time limit. Each player controls an anti-aircraft gun located in the lower left and right corners of the screen, respectively. A player's gun is controlled by three buttons located in each player's control station, which consists of a