What are the in game features you want ATA to add in game which you can use if you don't have internet? (In case of emergency) Your hard works will get saved and it will be added/updated when you get connected to internet later.
I sont think its possible coz its server run. You need to be connected to the server to access your account
Id say that would involve having to completely remake the game. I don't see anything being possible to do offline anyway. Apart from opening boxes? Possibly. Coz you need to be able to connect with other players for everything else