 "Sodium" was the first Home based massively multiplayer online game released on December 17, 2009 to the European and North American versions of Home and on June 17, 2010 to the Japanese version.This game was developed by Outso and published by Lockwoood Publishing, and was the first part of a planned four-part series of games for Home (only two were released by the time of Home's closure).Like in "Xi", there was a space for the game that could be accessed through the Navigator.