Bonuses and promotions
- €25 Welcome Bonus
- +500% Bonus on your first 5 deposits
- Slots – 34xbonus
- Blackjack – 667xbonus
- Roulette – 334xbonus
- Bacarrat – 334xbonus
- Video Poker – 167xbonus
- Table Poker – 334xbonus
Also, 21 Dukes No Deposit Bonus (+1) – $15 bonus when you sign up!
Please note that there are some restricted games for 21Dukes No Deposit Bonus earners. You will be not allowed to play Blackjack and Roulette Games with sign-up bonus. Second deposit is rewarded with 100% bonus up to 300$.
Restricted Games (-1) – You are not allowed to play the following games with the sign-up bonus; Blackjack and Roulette games
Bonuses on subsequent deposits (+1) – Second deposit 100% up to $300
There are also some special bonus system related with a level of membership.
Customer support is available by e-mail and by live chat. Customer support is available in 5 languages: English, French, Spanish, German and Italian.
Security and fairness
21 Dukes casino is officially verified by VISA and MasterCard, as well as it has an official verification by software partners like Security Standarts Council, Norton Secured, McAfee Secure, SSL.
Duke 21 showed itself as trustable and checked by time online service. Thousands of players and millions of cashout prove it. The casino really worth a name it’s fans call it – grand duke casino.