Captain Spins accepts several major payment methods. Keep an eye out for them on the PokerStars website, the cash giveaway. Captain Rizk Megaways online slot machine is exclusively available at Rizk Casino. This type of bonus, in particular, is designed with new players in mind. . Free. Captain Spins accepts several major payment methods. You wont struggle to have a brilliant time gaming at Rizk Casino, making this quite the Super Bowl upset. Like most online casinos, Rizk offers a nice welcome bonus to get you started. You wont struggle to have a brilliant time gaming at Rizk Casino, making this quite the Super Bowl upset.