This game is a huge pay to play game. You can still play but you definitely won't advance quickly.And you will always have poor quality vessels. This makes you game fodder for the pay to play players! And if you don't pay, most of the special events won't let you advance very far as they want you to pay to play the events.In addition to this, if you ever change your phone and the game is lost Scopely customer service won't help you get the game back to we're you were. It's a huge fight!!!