The latest Sim City appalled many fans of the series by requiring to be connected to the internet to play. Maxis and Electronic Arts realized their mistake and are currently polishing on Update 10, which allows players to go offline with their copy of the game.
Update 10 is in final testing. Almost there Mayors.
— SimCity (@simcity) March 12, 2014
They didn’t announce a release date though. The patch will be free of charge for everyone. Maxis said that there will be no disadvantages for playing offline and the local data will be synched as soon as Sim City gets connected back the internet.