21Dukes Not Recommended

You'll get a free scratch card and an opportunity to compete for up to $25,000 when you deposit $50 or more. The more deposit you make, the more likely you are to win. You will receive your scratch card as soon as the appropriate funds have been deposited into your account.

Once you've received the card, scratch the corresponding place to see what item you've won. Among the prizes available are cashback, bonuses, and free spins. For those who deposit more than $500, the rewards grow, including prepaid cards, bitcoin, Amazon vouchers, and even a jackpot worth up to $25,000.