High Quality Content by WIKIPEDIA articles! Sodium is a massively multiplayer online game based in and exclusive to the PlayStation 3`s online community-based social gaming network PlayStation Home. Sodium is a four part series of games, two of which have been released. It was developed by Outso, a developing company that develops spaces and content for Home, and it was published by Lockwood Publishing, who has published other content for Home. The first part, Sodium One, was released on December 17, 2009 to the European and North American versions of Home. It was later released in the Japanese and Asian versions on June 17, 2010 and July 29, 2010 respectively. The second part, Sodium 2: Project Velocity, was released on June 16, 2011 to the European and North American versions of Home.