Founded in 2020, GrandMasterJack was established to provide quality entertainment to people who enjoy gambling, by giving them the opportunity to do so in a safe, fun, fair, regulated and secure and enjoyable online gaming experience possible
New players only. Wagering occurs from real balance first. 50x wagering the bonus or any winnings generated from free spins, contribution may vary per game. Available on selected games only. The wagering requirement is calculated on bonus bets only. Bonus is valid for 30 Days/ free spins valid for 7 days from issue. Max conversion: 3 times the bonus amount or from free spins: $/£/€ 20. Excluded Skrill deposits Full Terms apply.
