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.
Hamtaro (video game series) and published by Marvelous in Japan, 505 Games in PAL regions, and Natsume in North America. It is a sequel to "", "", "" (which was never released in America), "", and the Japan-only "Tottoko Hamtaro Nazonazo Q: Question Castle in the Clouds", and is based on the anime series "Hamtaro". The game was released in Japan on March 15, 2007, in Europe on May 23, 2008 and in North America on September 23, 2008. "Hamtaro: Little Hamsters, Big Adventures" was released for iOS in 2011. Hamtaro (video game series) Hamtaro is a series of video games based on the