Valid for casinos. Zeus The Thunderer is one of the most well-known slot machines ever created Betsson Casino. Betsson The Thunderer slot review is here to provide you with all the details. On this online casino and sportsbook you can find a lot of bonuses and promotions that will give you the chance to win a lot of money quickly, there is a poker. Bonus % up to £ Betsson Casino Apply Bonus. . Register your new account with ApoloBet using the code 55spinmybonus and receive 55 free spins on Zeus The Thunderer totally free. T&C Applies.