I have been playing this game for about four years now. In all those years, I have a great experience. You don't need to spend money to get those large ships like Super Alsace, Yamato, H41, Missouri and others. What you need the most is time, patience and luck. Yes, luck! Luck will definitely give you those ships I've listed. I swear that I never spent a coin in this game, but as what I said, it gave me the best experience. Support the dev by watching ads. They worth it, very much. Updates pls.