Code Club AB

Swedish developer of the sandbox MMORPG Wurm Online, incorporated in 2007 as Mojang Specifications AB by Rolf Jansson and Markus Persson and renamed Code Club AB in 2011 — no relation to Persson's later Mojang AB, as he left the project in 2007 to eventually create Minecraft. Wurm Online, in development since around 2002, officially released in 2012 and came to Steam in 2020; Game Chest Group acquired a majority stake in 2019.