To delete your Mobile Dungeon account, you need to open your profile.
Then, click on "Account" and scroll down to the button "Delete S&F Account."
You will then need to confirm the deletion in the next window to finalize it. This action is irreversible, and the S&F account as well as all linked game characters will be permanently deleted from the database.
Keep in mind, all characters of all Playa Games titles linked to your S&F account will be deleted if you cancel your S&F account!