To sign up and play the game for the first time, you need a Facebook or email account.
It is important that the email account be active since it is the only way to recover the password if you forget it.
Game information, such as statistics and completed purchases, is associated to the account. This is why you can’t change your email account, as all player achievements would be lost.
If the address you enter when logging into the game is not correct, player information might not be displayed. We recommend logging off and back in if this happens.