King J is closed and we recommend you to check another safe UK casino instead.


King J

All British Casino

  • Nice theme and concept for UK players
  • Always 10% cashback
  • Fair wagering requirements
£100 Bonus
Play Now
Minimum deposit £20. Max bonus £100. Wagering requirement x35. For new players only. Full T&C’s apply
Wager-Free Spins


  • Free spins without wagering requirements on two first deposits
  • Welcome bonus for casino, live casino and sport
  • Sportsbook, bingo and scratch cards in game selection
Up to £100 Bonus + 50 Free Spins
Play Now
New reg only. Opt in & deposit either £10, £25 or £50 within 7 days & further 7 days to wager your deposit 35x to unlock reward (up to £50 for each of your first 2 deposits). Wagering/game contributions vary. 25 x 10p wager-free spins added to Big Bass Splash with each qualifying deposit, 3 day expiry. Other Promotional Play Restrictions Apply. Full T&C’s apply. 18+

Monster Casino

  • Great welcome package with up to £1,000
  • Weekly promotions and competitions
  • Large game selection: lots of online scratch cards
  • Monster casino app for mobile play
£1,000 Bonus + 100 Free Spins
Play Now
New Players Only. Wagering occurs from real balance first. 50X wagering the bonus. Contribution may vary per game. Available on selected games only. The wagering requirement is calculated on bonus bets only. Bonus valid 30 Days from receipt/Free spins valid 7 days from receipt. Max conversion: 3 X the bonus amount. Limited to 5 brands within the network. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits. Full T&C’s apply 18+ | BeGambleAware | #AD

William Hill

  • Lots of promotions and bonuses
  • Online since 1998
  • Sport, casino, live casino, poker and bingo
£30 in Free Bets
Play Now
#ad 18+ – Minimum deposit £10. Minimum odds 2.00. Max bonus £30 in free bets. For new players only. T&C’s apply –
Exclusive Bonus

Betfred Sport

  • Extensive selection of sports and events to bet on
  • Lots of promotions and offers
  • Payments can be completed at Betfred shops
  • Sports betting app available
£30 in Free Bets + 50 Free Spins
Play Now
Minimum deposit £10. Max bonus £30 in free bets and 50 free spins. Wagering requirement x40. For new players only. Full T&C’s apply

You can still read our old review for more information about the brand but please note that the casino is closed.

King J is a new online casino and sportsbook that was founded in 2021. The website offers casino games and sports betting from the same platform and login, making it easy for players who prefer a bit of everything. New players signing up can opt in for a welcome bonus of up to £200 or a £10 free bet. There are lots of payment methods to choose from and customer support is available 24/7, but the website does not offer the best mobile casino around.

In-Depth King J Review

King J king

At King J, everyone is treated like royalty. It’s a new casino from 2021 with right about everything in place. Our quick overview above covers the basics, but if you want to learn more about the details of this casino and sportsbook, keep reading for our more in-depth King J casino review.

King J Bonus

In order to treat players like royalty, King J should offer a good selection of bonuses and promotions. Luckily, that is exactly what the casino does! Here, not only new but also active players can take advantage of lots of fun promos every week. It all starts with the welcome bonus, where players can choose from a casino bonus or a sports bonus.

Casino Welcome Bonus

The casino welcome bonus is simple but good. New players can get a 100% bonus of up to £200 on their first deposit. In order to opt in for the bonus, the deposit needs to be of minimum £10 and the bonus code KING needs to be included. If you deposit the max bonus amount of £200, the casino will grant you another £200 and you will get a total of £400 to play for. A bonus worthy of kings!

Significant Bonus Terms

  • Max bonus: £200
  • Minimum deposit: £10
  • Bonus code: KING
  • Wagering requirements: x50

T&Cs Apply | 18+

Sports Welcome Bonus

Since this casino also offers sports betting, it is great to see that players can choose to opt for a sports welcome bonus too. This offer gives a £10 free bet to new players who deposit and bet £10. The first bet placed needs to have a odds of minimum 1.5. The free bet will automatically be activated once the bet(s) have been placed.

Other Promotions

King J has an impressive selection of promotions offered to all players. By clicking on Promotions from the menu, you’ll find monthly offers, weekly free spins, cashback promotions, leaderboards and more. Some of these promotions require a bonus code so make sure to read all terms and conditions carefully.

Game Selection

The casino section at King J lists a good selection of games within the categories new, featured, slots, casino, live, jackpots and casual. You can also click to view all games available, or “heart” games so that they appear in your favourites. Finally, it is possible to search for a game or only show games from a specific game provider. In other words, there are lots of ways to filter and find games from the grand selection.

The one category that trumps the rest is definitely slots. There are hundreds of slot games with different themes, prizes and bonus features. They are all fair and of high quality, thanks to trustworthy and industry-leading game providers such as NetEnt, Big Time Gaming and Thunderkick. Since the casino site is very new, you will find a good selection of new games listed – with more added frequently.

Screenshot of the King J game selection

The live casino category at King J is modest but covers the most popular live games. All live titles are from Evolution Gaming who simply offers the very best of live casinos. It is good to see different versions of games such as blackjack and roulette, but we wish some more unique games such as game show titles would be added too.

Sports Section

King J might look like a standard online casino, but this website has more to offer – including a full sportsbook. From the sports section, players can bet on popular sports such as football, tennis, cricket, rugby and much more. The selection of sports and leagues is simply impressive, with events from all over the world. Players can search for a competition or team, or browse the many categories available.

Bets can be placed live (as an event is ongoing) or pre-match (in advance). It is very easy to place bets – simply click on any bet you would like to add to your bet slip, choose your stake and click to place bets. You can place a single bet or combine several bets as multiple, system or chain. There’s a system calculator available and it is also possible to adjust the bet slip and odds type.

Screenshot of the King J sportsbook

Deposit & Withdrawals

In order to play for real money and opt in for the bonuses offered, players first have to complete a deposit. This is done after signing up, from the “Cashier” section. All deposits are processed instantly which allows for instant gaming. Sadly, withdrawals are not as quick as all cashout requests will appear as “pending” for three business days before being processed.

Accepted Payment Methods

One thing King J really has done right is to offer an abundance of payment methods. Players can make deposits via popular methods such as Visa, PayPal, Skrill, Trustly and Paysafecard. The mobile deposit method Pay via Phone is also accepted. There’s a long list of different payment methods, but not all are available for all currencies or countries. Please also note that not all deposit methods can be used for withdrawals.

Customer Support

At King J Casino, everyone is treated like royalty and the customer support team is ready to give excellent advice on any issues that might arise. By clicking on “Support”, a pop-up window with lots of useful information is opened. Here you can browse common questions or search for a topic and get your question answered.

If you can’t what you are looking for in the support center, you can contact the customer support team via live chat or contact form. The team is available 24/7 to answer your questions.

King J support center
  • Email: Contact form

King J Mobile Casino

The games offered at King J casino can be played via mobile devices/on smaller screens. The sportsbook is also available on mobile. This means that players can access King J whenever they wish and play on the go. The website is optimised for mobile screens, though it is not the best mobile casino we have come across. For instance, some parts of the website overlap and make it difficult to click on specific links, and the game thumbnails are very small. Hopefully, this is something the casino is working on to improve.

For now, there isn’t any app offered so mobile players have to make use of the (not perfect) version in their mobile browser.

Key Info

  • Casino: King J Casino & Sportsbook
  • Website:
  • Welcome bonus: Up to £200
  • Established: 2021
  • License: UK Gambling Commission, Malta Gaming Authority
  • FAQ: Yes
  • Live chat: Yes
  • Support email: N/A
  • Support phone: N/A
  • Kabono Rating: ★★★★

Verdict: What does Kabono think of King J Casino?

Considering how new this casino is, we are pretty impressed with the offering. Both the sportsbook and the casino game selection is varied, easy to navigate and of high quality. The long list of promotions is a huge perk for all players and new players can choose from two welcome bonuses.

We do wish that the mobile version of the website was better and that withdrawals were processed quicker, but hopefully, this is something that is quickly improved in the near future. Until then, we don’t think that is reason enough to not test out this casino. Check it out for yourself and sign up if you like what you see!

Avatar for Anita Fosen
Author Anita Fosen

Anita is a writer and editor at As a creative writer and journalist, she has written thousands of articles related to online gambling. She loves reviewing new casino brands and hunting for the best and newest casino promotions to find hidden gems and the best deals for players. Read more about Anita.

Ups & Downs

  • Casino and sportsbook in one
  • Lots of promotions and bonuses
  • Lots of accepted payment methods, including pay via phone
  • No phone support or email address
  • Three-day pending period for all withdrawals


  • Minimum Deposit:
  • Licenses:
  • Payment Methods:
    Visa, PayPal, Trustly, Paysafecard