CheatCC says: "One of the features of SimCity 2013 most touted leading up to its release was the multiplayer. Mayors would be able to establish their own cities in a group’s region and cooperate in a variety of ways. They would trade materials, send services to each other, and work together to help a region thrive. It didn’t quite work out as planned. Thankfully, this wasn’t the first multiplayer SimCity game to be released. SimCity 2000 saw a Network Edition release back in 1996."