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GrandMaster Jack Review

Despite only being founded in 2020, GrandMaster Jack is already swiftly making a name for itself as one of the most interesting new casinos in the UK market. Featuring a wonderfully varied and extensive game library as well as a brilliant three-tiered welcome bonus, there is a lot to like about the operator at first glance.

However, is all the hype worth it? CasinoWings made GrandMaster Jack the subject of our scrupulous review process in order to find out. As well as looking at its bonuses and games, we also delved into its customer service and payment methods. Read on to find out how the operator held up to our rigorous testing…

Facts - GrandMaster Jack


  • Wager requirement:
  • Play in £:
  • Support:
    English speaking support, Support open 24h, Chat support, Mail support
  • Loyalty:
  • License:
    Yes, ProgressPlay Limited


  • Game assortment:
    Casino, Live casino, Poker, Scratch cards
  • Game providers:
    • 1×2 Gaming
    • Big Time Gaming
    • Bet Digital
    • Blueprint
    • Evolution Gaming
    • ELK Studios
    • Genii
    • Iron Dog Studio
    • Just For The Win
    • Lightning Box
    • Microgaming
    • Nolimit City
    • NetEnt
    • NextGen/NYX
    • Playson
    • Play’n GO
    • Quickspin
    • Rabcat
    • Skillzz Gaming
    • Scientific Games
    • Thunderkick
  • Number of games:
    More than 1600


  • Payment providers:
    • PayPal
    • PayviaPhone
    • Zimpler
    • VISA
    • Mastercard
    • Paysafe Card
    • Trustly
    • ecoPayz
    • Skrill
    • Sofort
  • Withdrawals processed within:
  • Minimum deposit:
Bonus: £300 + 50 Welcome Spins Supports PayviaPhone and PayPal Great selection of games Play here

GrandMaster Jack Sign Up Offer: Three Separate Bonuses!

During our GrandMaster Jack review, we were delighted to find out that the operator’s sign up offer included not one, not two, but three separate bonuses. A welcome offer as generous as this does not come along that often and it is bound to keep players coming back for more.

Bonus One: Free Spins

After making your first GrandMaster Jack deposit, you will immediately receive 25 free spins, eligible for use on the popular slots title, Gonzo’s Quest. The game – which is developed by award winning software provider NetEnt – is one the very best on the market, making this reward extremely enticing.

Bonus Two: Deposit Boost

After you burn through all of your GrandMaster Jack free spins, your second deposit will also be eligible for a bonus. In this case, whatever you pay into your account will be boosted by 50%. For instance, a deposit of £20 will be turned into £30 of playing credit. This is a great reward as it allows players to enjoy all of their favourite games for a little bit longer, without having to wager their own money.

Bonus Three: Deposit Boost & Free Spins!

Yes, you have read that right. After receiving their first two deposit boosts, new players will then be eligible to receive a third reward from the operator. Your third GrandMaster Jack payment will be boosted by 25%, while you will also receive 25 free spins that can be used on Reactoonz. So, if you again deposit £20, this will be turned into £25. Furthermore, you will also be gifted free plays on one of Play’n GO’s best new slots.

The Smallprint

Before you claim your GrandMaster Jack casino bonus, it is important that you understand what you are getting yourself in for by studying the terms and conditions.

One of the key things to know is that in order to receive your bonus, you must make a minimum deposit of £10. There are also several upper limits to consider. For Bonus Two, the most you can deposit is £100, while Bonus Three is limited to £200.

Of course, there are wagering requirements as well. In order for your winnings to become withdrawable, you must stake your bonus 50x. Wagering contributions vary from game to game and if you wish to reach the limits faster, playing slots is your best bet.

One final thing you need to know is that all your bonuses must be used within seven days. After that, they will expire.

Casino bonus - GrandMaster Jack


Bonus: £300

Spins: 50 Welcome Spins


  • Deposit 1
    Up to 25 Welcome Spins (Game: Gonzo’s Quest)
  • Deposit 2
    50% up to £100
  • Deposit 3
    25% up to £200
    Up to 25 Welcome Spins (Game: Reactoonz)
1×2 GamingBig Time GamingBet DigitalBlueprintEvolution GamingELK StudiosGeniiIron Dog StudioJust For The WinLightning BoxMicrogamingNolimit CityNetEntNextGen/NYXPlaysonPlay’n GOQuickspinRabcatSkillzz GamingScientific GamesThunderkick Play here

Discover the GrandMaster Jack Game Library

An online casino is only ever as good as its game library. If an operator’s portfolio is lacking, players will soon log off in droves. However, there is no danger of this happening at GrandMaster Jack, as they possess a fine selection of different titles.

The Best Software

The key to a great online casino game library is good software. GrandMaster Jack gets this, and only hosts games from the very best game designers on the market. Microgaming, Evolution and Big Time are just three of the long list of software providers with games on the site. What’s more, searching for a title by your favourite designers is easy, thanks to GrandMaster Jack’s great filtering system.

Featured Games

Speaking of filtering, sorting through the hundreds of different games on offer by the operator can be done in several ways. ‘New’, ‘Featured’, ‘Slots’ and ‘Casino’ are all subcategories which feature some great titles.

Whether you prefer playing the best online slots on the market or keeping things more traditional with Las Vegas style table games, GrandMaster Jack has you covered.

During our review, we also enjoyed the range of Christmas slots they had on offer in the ‘Featured’ section. GrandMaster Jack continues to curate this section of their library throughout the year, helping to keep things fresh for players.

Virtual Sports

One of the things that makes GrandMaster Jack’s games standout from its competitors is that there is a considerable V Sports section. Here, players are treated to a swathe of virtual sporting events such as football, horse racing and even cricket. It’s not often that an online casino offers something like this and we were delighted when we discovered it during our GrandMaster Jack review.

Live Casino

Rounding off our look at the GrandMaster Jack game library is its live casino. Using cutting edge high definition cameras and audios, developers are now able to bring the buzz of a brick and mortar casino for players to enjoy in their own homes. Blackjack, baccarat, roulette are all on offer across multiple tables and we never had an issue jumping into a game during our review.

PayPalPayviaPhoneZimplerVISAMastercardPaysafe CardTrustlyecoPayzSkrillSofort Play here

GrandMaster Jack Payment Methods

GrandMaster Jack impressed us with its wide selection of different payment methods. Whether you prefer to use a debit card, e-wallet or even a pre-paid voucher, there is something to suit each player’s needs.

PayPal Payments

What we liked most about GrandMaster Jack’s payment options was that it accepted PayPal deposits. The e-wallet is the largest of its kind on the planet and it offers players a high chance of receiving the quickest online casino withdrawal possible. PayPal deposits to GrandMaster Jack also start as low as £10 – meaning even the most casual players can use the method

Plenty of Alternatives

If PayPal is not your thing, never fear. A myriad of other payment options such as VISA, Mastercard, paysafecard, Trustly, PaybyPhone and many more, can all be used for deposits and withdrawals. Overall, we were nothing but impressed with the payment methods on offer.

Excellent Customer Service

Customer service is a vital part of any business – and online casinos are not exempt from this. This is another area that GrandMaster Jack ranked well in during our review.

Responsive Live Chat & More

Whenever we had an issue during our review, our first port of call was the operator’s live chat service. It is available 24/7 and whenever we used it we only had to wait a matter of minutes to receive a courteous and informative reply.

For more detailed enquiries there is also a contact form which can be used for email support. Unfortunately, there is no telephone support… yet.

As well as all of this, we were also pleased that GrandMaster Jack included a fine FAQ section. Because of this, many of the questions you have may already be answered before you have to contact the operator directly.

Pros and Cons


  • Great, three tier welcome offer
  • Awesome live casino
  • Tonnes of slots and table games
  • Informative and responsive 24/7 customer service
  • Great selection of payment options, including PayPal


  • No telephone support
  • Tough wagering requirements
  • Free spins only usable on certain games


GrandMaster Jack is one of the strongest new casinos we have reviewed in 2020. A few very minor gripes aside, we were nothing but satisfied during our review and would recommend new and more experienced players alike to give the operator a go. From its wonderful, three-tier welcome bonus, to its bulging game library and supreme customer service, GrandMaster Jack has plenty to offer players. We expect to see it grow considerably over the coming months.


What is GrandMaster Jacks security like?

The operator takes security extremely seriously. Not only is all of its players’ data stored on ultra-safe servers, all the payments made on the site are secured by SSL encryption. When creating your account, you will also be asked to verify your account.

What is the minimum deposit?

Regardless of which of the operator’s wide range of payment options you use, the minimum deposit that can be made is £10. The maximum deposits meanwhile, vary wildly depending on the method.

How do I contact customer service?

Contacting customer service could not be easier. No matter where you navigate on the website, a small chat icon will always be in the top left of the screen. Simply click this and it will load the operator’s customer service centre.

Can I play GrandMaster Jack games on my mobile?

As well as running great on a computer, all of GrandMaster Jack’s games can also be played on a mobile. Downloading the operator’s mobile app will give you the very best experience.

GrandMaster Jack

Our rating:

Last update:

Reviewed by:

Avatar for Daniel Tafvelin
Daniel Tafvelin
[email protected]

Daniel is the content manager at CasinoWings. With 10 years of involvement in customer service, he is keen on guiding you to the best possible casino experience. Read more about Daniel