Spend real money and you will win for a short period of time. But eventually you will lose all of your coins, devs hope that you will spend more real money. Don't waste your time or money on the game. Played for over a month without spending a dime and won nothing. Spent 40 bucks to buy some coins and built my bank up to 7 billion. Now all gone. Done that several times. Game is a huge rip-off. How do you lose 7 billion betting less then a million a spin.