Game Dev Tycoon is a business simulation video game developed by Greenheart Games released on 10 December 2012. The player creates and develops video games. Game Dev Tycoon was inspired by the iOS and Android game Game Dev Story (by Kairosoft), and many critics find substantial similarities between the two games. Game Dev Tycoon was created by Greenheart Games, a company founded in July 2012 by brothers Patrick and Daniel Klug. The game has 1–2 million owners on Steam.