Grand Master Jack Casino Review

Welcome package Up to £300 + 50 Free Spins

Review Breakdown
  • Games & Software
  • Deposits & Withdrawals
  • Welcome Bonus & Promotions
  • Customer support
  • Mobile & Tablet


Grand Master Jack offers a large slot selection and 24/7 customer support as well as a stellar mobile experience where you can pay using your mobile phone bill. The welcome bonus gives a good amount of free spins and there are many weekly promotions to earn extra rewards, but the wagering requirement is high. It’s easy to deposit with many banking options available, but withdrawals are slow and the casino charges a processing fee for them.

Grand Master Jack Slot Site Bonus

Grand Master Jack Casino offers a 3-tier welcome bonus to attract new players. While being able to get up to £300 free money sounds generous, the deposit match rate is lower than what most other UK slot sites offer. The free spins are nice though, so it’s still worth it to take a closer look at the entire offer:

  • 1st deposit gets 25 free spins on Gonzo’s Quest
  • 2nd deposit gets 50% match bonus up to £100
  • 3rd deposit gets 25% match bonus up to £200 plus 25 free spins on Reactoonz
  • Minimum deposit: £10
  • Wagering requirement: 50x the bonus received 
  • The bonus is valid for 30 days while free spins expire after 7 days
  • The maximum withdrawable funds from the bonus is 3x the bonus received or £20 from free spins winnings
  • Deposits via Skrill are not eligible for the bonus

*18+. 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

Please game responsibly and if you need further support, reach out to BeGambleAware for confidential help.

Our Review of Grand Master Casino

Play more than 780 slots of different varieties, powered by over 50 world-class software providers at Grand Master Jack casino. You start off with some free spins when you make your first deposit and can earn many more rewards every week. What more is in store for you here? Read our complete Grand Master Jack casino review to discover it all!


Grand Master Jack Casino was launched in 2020 and operated by ProgressPlay Limited, a Malta-based company. The operator is licensed by the Malta Gaming Authority, one of the most established gambling authorities in the world and also holds a licence by the UK Gambling Commission. Therefore, you can have peace of mind in the knowledge that the casino is highly regulated and a legitimate site for players in the UK.

Style and Feel of Site

With a name like Grand Master Jack, it’s a bit disappointing that the site doesn’t have an obvious theme at all. The website has a black background and a simple design that makes navigation intuitively easy. The site’s functionality is great, but there’s nothing unique about the way it looks, which is quite typical of ProgressPlay casinos. 

VIP Offering & Loyalty Programme

Register an account at GrandMasterJack and you’re immediately part of the 5-tier VIP club. Every £16 wagered at the casino earns you one point and the more points you accumulate, the higher your VIP level. Being a high-level VIP paves the way to more benefits like having your own account manager, getting personalised gifts and anniversary bonuses.

At the same time, you can also snatch up more rewards by taking part in the many weekly promotions available. The extra rewards you can earn include free spins, cashbacks, bonuses and more.

Mobile & Tablet Review of GrandMaster Jack Casino

As a member of GrandMasterJack casino, you gain a pocket slot site to take with you anywhere you go. No downloading is required and you simply log in to your casino account directly on your mobile web browser to pick up where you last left off. You can even deposit using your mobile phone bill for the ultimate convenience when you’re out and about.

Games & Software Available at Grand Master Jack Online Casino

Grand Master Jack casino showcases an ever-expanding slot library, with more than 780 reel games to choose from. The selection is as extensive as it is varied, where you can get your hands on video slots, fruit machines, 243 payline slots, megaways slots and more. There are also over 40 progressive jackpot slots available like Treasure Nile, Shaman’s Dream, 99 Time and Fluffy Favourites Jackpot.

The casino has gathered online slots from more than 50 reputable developers from around the world. Whatever your slot taste is, you’ll surely be able to find something you like at the casino, whether it be games from giant slot makers like NetEnt and Microgaming, or from up-and-coming studios like Chance Interactive, Blueprint Gaming, ELK Studios and more.

Deposits & Withdrawals at GrandMasterJack Casino

Deposit is a breeze, with the casino accepting a range of convenient yet secure payment options. Most deposits are free, except when you use Pay by Phone, which will incur a 15% fee. Unfortunately, withdrawals don’t come free too, with the casino charging a £2.50 fee for processing them. Furthermore, cashing out takes a while with a mandatory 3-day pending period.

Deposit methods: Visa Debit, MasterCard Debit, Paypal, Paysafecard, Pay By Mobile, Trustly, MuchBetter, ecoPayz

Grand Master Jack Casino payment
Grand Master Jack Casino Deposit

Withdrawal methods and transfer times: 

Debit cards: 7 – 11 business days

Paypal: 7 – 11 business days

Bank transfer: 8 – 14 business days

Trustly: 7 business days

ecoPayz: 7 business days 

Help & Support at Grand Master Jack Casino

Grand Master Jack provides an adequate FAQ page to answer basic questions about the casino. Should you require further assistance, you can get in touch with a customer representative at any day and time, using either of the following ways:

Email: Via web contact form

Live chat: Available 24/7


Can I get free spins at Grand Master Jack Casino?

Yes, you can and you already start getting free spins by making a first deposit. In addition, you can earn free spins every single week by participating in the promotions that the casino holds.

What is the minimum required deposit and withdrawal amount at this online casino?

The minimum deposit amount at Grand Master Jack is £10, except when you use Trustly, ecoPayz, or MuchBetter, then the minimum amount is increased to £20. The minimum withdrawal amount using bank transfers is £50 and for other methods, it’s £2.50 per transaction.

What is the wagering requirement for bonuses here?

The general bonus wagering requirement is 50x the bonus received or winnings generated. However, some promotions carry their own wagering requirement, which may be different from the general one, so make sure you read the T&C’s clearly.

What payment methods are available at Grand Master Jack Casino?

The casino accepts many forms of payment methods, including Paypal and you can also pay using your mobile phone bill too.

Are there any jackpots to win at this site?

There are more than 40 different jackpot games at Grand Master Jack. However, the casino doesn’t offer the largest online progressive jackpot slots like Mega Moolah and Mega Fortune.

JustSlots Says

Grand Master Jack delivers a good slot selection that’s large and varied while providing 24/7 live chat support so you know the casino will always have your back. There are many rewards to earn every week, though the wagering requirement is a bit high. We like it that there are many ways to make deposits, usually for free, but we aren’t a fan of the long 3-day withdrawal pending period and £2.50 processing fee. Overall, we award the casino a score of 3.6 out of a possible 5 in our UK slot sites ranking.