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