Only after creating you 'Social Club' account, you can take Steam OffLine ( this is how I normally play).When you start you are forced to logon to the 2K 'Social Club'.When you first launch XCOM 2 you must have Steam OnLine AND be connected to your network.
XCOM 2 would be an excellent game IF it could actually be played Off Line. The expansion XCOM 2: War of the Chosen was released in 2017. Taking place 20 years after the events of Enemy Unknown, it follows the continuity that Xcom, a military organization trying to fight off an alien invasion, has lost the war, and is now a resistance force against their occupation of Earth.
The game is the sequel to 2012's reboot of the series, XCOM: Enemy Unknown. XCOM 2 is a turn-based tactics video game developed by Firaxis Games and published by 2K Games for Microsoft Windows, OS X, and Linux in February 2016, and for PlayStation 4 and Xbox One in September 2016.
