Wurm Online

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Wurm Online is a 3D massively multiplayer online video game (MMO) developed by Code Club AB (formerly Onetofree AB and Mojang Specifications AB) in Motala, Sweden. Development started in 2003 by friends Rolf Jansson and Markus Persson, and was released for personal computers using Java in 2006. Both player versus player and realm versus realm combat are possible in the game.