Can I still play even while not connected to the internet? No. You will need an internet connection in order to play the game. Related articles (Nintendo Switch) Is a Nintendo Switch Online (paid) membership required to play? (Mobile version) My save data isn't being displayed when I log in to the mobile version. How do I save the game? How do I use the same save data with both the Nintendo Switch version and the Mobile version? "Network error. Please check your internet connection and try again" appears on the title screen