Will my storage be deleted on december when the beta service ends on December 17th 2018 ?
Yes, all user data will be deleted once the Beta service ends on the 17th so please make sure that you backup your game saves before that date.
A backup in Liquidsky or in Steam and how do I make a backup. I wouldn’t really like it, if I’d lose all my Dark Souls 3 progress
Steam has cloud saves, for everything else, use e.g. Google Drive.
Mega.NZ is more trustworthy.
It looks like announcement 11 December. Service shut down 17 December all my data gone?
Is there no way to get my data back?
This is really bad practice.