Wurm Online

Wurm Online is a 3D massively multiplayer online role-playing game developed by Code Club AB (formerly known as Onetoofree AB) in Motala, Sweden. Development started in 2003 by friends Rolf Jansson and Markus Persson, and it was released for personal computers via Java in 2006. Players can choose to play on servers that allow player versus player combat and realm versus realm combat or servers that are focused more on a virtual economy.