Code Club AB Code Club AB Code Club AB is a Swedish video game developer based in Motala, founded in 2007 by Rolf Jansson and Markus Persson. The company developed the sandbox massively multiplayer online role-playing game "Wurm Online" and its standalone version, "Wurm Unlimited". Code Club AB was founded as Mojang Specifications AB by Rolf Jansson and Markus Persson in 2007, as the game started to turn a profit. Later in 2007, Markus Persson stepped out of the project and left the company, however, he wished to retain the "Mojang" name for himself, because of which Jansson renamed the company Onetoofree AB.
Markus Persson adventure game. Professionally he had worked as a game developer for King for over four years, until 2009. Afterwards he worked as a programmer for Jalbum. He is also one of the founders of "Wurm Online", though he no longer works on it. Outside of work, he has made seven games for competitions. He is the central figure of "", a documentary by 2 Player Productions about the rise of "Minecraft" and Mojang. Persson is a member of the Swedish chapter of Mensa. On 13 August 2011, he married Elin Zetterstrand. On 15 August 2012, he announced that he was