Winning Kings Sister Sites: Best Alternatives & Offers (2026)
List of Winning Kings Sister Sites & Welcome Offers
Winning Kings' sister sites include Slots Magic, Metal Casino, Ice36 and PlayOJO, plus a further 40-odd brands that operate under SkillOnNet (UKGC: 39326).
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Casino Club is available to New and Existing AK BETS customers. Over 18+ only. UK / IRE Residents only. Wager £50+ on Casino Slots or Live Casino and receive a minimum of 10 X £0.10 free spins the following day. All wagers must be placed and settled within each qualifying period daily 00:01am to 23:59pm. T&C's apply - This offer is only available for first time depositors. Min deposit is £10. 50 Free Spins on Book of Dead. Spin Value: £0.10. After your first deposit you may claim your 30 Extra Free Spins by visiting the Kicker Section. No min withdrawal. This offer cannot be used in conjunction with any other offer. This offer is only available for specific players that have been selected by PlayOJO. If you have arrived on this page not via the designated offer via PlayOJO you will not be eligible for the offer. OJO’s Rewards and Game Play policy applies. 18+ Begambleaware.org. T&C's Apply.
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Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Max. Bonus £50. Maximum amount of Free Spins is 50. *Game: Book of Dead, Spin Value: £0.10. WR of 10x Bonus amount and 10x Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Bonuses do not prevent withdrawing deposit balance. *Games are subject to availability. -
Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Max. Bonus £25. Maximum amount of Free Spins is 50. Game: Big Bass Bonanza, Spin Value: £0.10. WR of 10x Bonus amount and 10x Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Bonuses do not prevent withdrawing deposit balance. -
First Deposit Only. Min dep. £20. Game: Book of Dead, Spin Value: £0.10, Max Free Spins: 200. WR 10x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Bonuses do not prevent withdrawing deposit balance. *Games are subject to availability. Bonus Policy applies. -
First Deposit Only. Game: Sahara Riches Cash Collect, Spin Value: £0.10, Max Free Spins: 100. WR 10x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Bonuses do not prevent withdrawing deposit balance. -
First Deposit Only. Game: 777Strike, Spin Value: £0.10, Max Free Spins: 100. Free Spins will not trigger the jackpot, and do not contribute to the jackpot value. WR 10x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonuses do not prevent withdrawing deposit balance. Bonus Policy applies. -
First Deposit Only. Game: Fishing Frenzy Big Catch Megaways, Spin Value: £0.10, Max Free Spins: 100. WR 10x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Bonus Policy applies. - Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Max. Bonus £25. Maximum amount of Free Spins is 25. Game: Book of Dead, Spin Value: £0.10. WR of 10x Bonus amount and 10x Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Bonuses do not prevent withdrawing deposit balance.
- First Deposit Only. Maximum amount of Free Spins is 100. Free spins will be credited in the game Thor the Trials of Asgard. Free Spin Value: £0.10 per spin. WR 10x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Bonuses do not prevent withdrawing deposit balance.
- First Deposit Only. Min. deposit: £10, max. Bonus £25. Game: Big Bass Bonanza, Spin Value: £0.10. WR of 10x Bonus amount and 10x Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Bonuses do not prevent withdrawing deposit balance.
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Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Min. deposit: £10. Game: Big Bass Bonanza, Spin Value: £0.1, Max Free Spins: 100. WR of 10x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used before using deposited funds. Bonuses do not prevent withdrawing deposit balance. -
First Deposit Only. Game: Book of Dead, Spin Value: £0.50, Max Super Spins: 50. WR 10x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Bonuses do not prevent withdrawing deposit balance. Full T&Cs apply. - Automatically credited upon deposit. First Deposit Only. Min. deposit: £10. Game: Ninja Master, Spin Value: £0.2, Max Free Spins:25. WR 10x Free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the Free spin winnings amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. First Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos.
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New customers only. Deposit and wager a minimum of £25 on Big Bass Splash 1000 on registration day receive 100 Free Spins on Big Bass Splash 1000. Free Spins will be credited by midday the following day and expire after 7 days. 10x wagering requirement on Pragmatic Play slots before withdrawal. Full T&Cs apply. -
Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Min. deposit: £10. Game: Spinning Wilds, Spin Value: £0.1, Max Free Spins: 100. WR of 10x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used before using deposited funds. Bonuses do not prevent withdrawing deposit balance. Full T&Cs apply. -
Genting Casino Sister Site100% Bonus Up to £25 + 50 Free Spins on Big Bass BonanzaJoin SiteSee MoreAutomatically credited upon 1st Deposit (min £10). Max Bonus £25. Game: Big Bass Bonanza, Spin Value: £0.1. WR 10x Bonus (only Slots count) in 30 days. WR 10x free spin winnings (only Slots count) in 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus or £5 (lowest applies). Bonus Policy applies. -
Automatically credited on 1st Deposit (min £10). Game: Book of Dead, Spin Value: £0.1. WR 10x free spin winnings (Slots only) in 30 days. Max bet: 10% (min £0.1) of the free spins winnings or £5 (lowest applies). Bonus Policy applies. -
Automatically credited upon 1st Deposit (min £10). Max Bonus £25. Game: Big Bass Bonanza, Spin Value: £0.1. WR 10x Bonus (only Slots count) in 30 days. WR 10x free spin winnings (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus or £5 (lowest applies). Bonus Policy applies. - Automatically credited on 1st Deposit (min £10). Game: Big Bass Bonanza, Spin Value: £0.1. WR 10x free spins winnings (Slots only) within 30 days. Max bet: 10% (min £0.1) of the free spins winnings or £5 (lowest applies). Bonus Policy applies.
- Automatically credited on 1st Deposit (min £10). Max Bonus £25. WR 10x Bonus (only Slots count) in 30 days. Max bet: 10% (min £0.10) of Bonus or £5 (lowest applies). Bonus Policy applies.
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Automatically credited upon 1st Deposit (min £10). Max Bonus £25. Game: Big Bass Bonanza, Spin Value: £0.1. WR 10x Bonus (only Slots count) within 30 days. WR 10x free spin winnings (only Slots count) in 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus or £5 (lowest applies). Bonus Policy applies. -
Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Min. deposit: £10, max. Bonus £25. Game: Book of Dead, Spin Value: £0.1. WR of 10x Bonus amount and Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Bonuses do not prevent withdrawing deposit balance. Bonus Policy applies. -
Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Min. deposit: £10, max. Bonus £25. Maximum amount of Free Spins is 100. Game: Book of Dead, Spin Value: 0.10. WR of 10x Bonus amount and Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Bonus Policy applies. - Automatically credited upon deposit. First Deposit Only. Min. deposit: £10. Game: Book of Dead, Spin Value: £0.10. WR of 10x Bonus amount and Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used before using deposited funds. Bonuses do not prevent withdrawing deposit balance.
- Automatically credited upon deposit. First Deposit Only. Min. deposit: £10. Max. Bonus: £25. Game: Ninja Master, Spin Value: £0.20, Max Free Spins: 50. WR of 10x Bonus amount and Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used before using deposited funds. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonuses do not prevent withdrawing deposit balance.
- New customers only, 18+. 100% bonus on your first deposit up to £50. Minimum first deposit £10. Any amount deposited over £50 will not qualify for the bonus. To receive the full £50 bonus, you must wager 10x the value of your first deposit within 60 days of activating the bonus via the “My Bonuses” section of your account. Bonus funds are released in 10% increments to your Main Account balance. Full T&Cs apply.
- 18+. If your first bet is a Treble or Up on Any Sport (minimum 3 selections, odds evens) AK Bets will boost the profit gained on that initial bet by 25% in the form of a Free Bet up to a value of £/€100. Applies to new customers who sign up with the promo code AKACCA100. 7-day expiry on free bet.
- New customers online only. Register and bet a min £/€5 at odds of 1/1 (2.0) or greater across sports or racing within 7 days of registration to qualify. Receive £/€10 Tote Credit, £/€10 Free Sports Bet within 48 hours of qualifying bet settlement. Qualifying bet is the first racing pool or sports bet added to bet slip. Voided/non-runner bets will not qualify; subsequent bet will be qualifying bet. 7-day expiry. 18+. One per customer. Selected customers only. Full T&Cs apply. Gambleaware.org. Full T&Cs apply.
- 18+ Offer available to new customers only who sign up with Promo Code BET40GET20. Place a bet of £40 (or more) at EVS (2.0) or greater and Get 2 x £10 Free Bets. 1 x £10 Free Bet paid automatically & following £10 Free Bet after 24hrs. Min Free Bet odds 4/1 (5.0). Free Bets expire after 24hrs. Full T&Cs apply.
- 18+ UK only. New and existing customers only. Deposit £10+ and enter code SPORTS to receive 3 x £10 Free Bets (£30 total). Qualifying Sportsbook bets totalling £10 must be placed at minimum odds of 4/5 (1.80) within 60 days of registration. Free Bets are unlocked one at a time and each must be used in full on a single sports bet. Free Bet stakes are not returned. Cashed out or one-way bets do not qualify. Winnings from Free Bets are withdrawable immediately. Full T&Cs apply.
- 1st deposit only. Deposit a minimum of £10 and get 50 Free Bingo Tickets, which are valid for up to £0.25 in Amigo room, as well as 10 Free Spins on Starburst worth 10p each. No wagering requirements on potential winnings. Excludes players in N.I. OJO’s Rewards and Game Play policy applies.
Full List of Winning Kings Sister Sites
Who Owns Winning Kings?
Winning Kings has been in operation since 2020 but has only recently been adopted by the experienced SkillOnNet (UKGC: 39326).
SkillOnNet is a big player in the UK market. It has been operating since 2014 and has seen over 60 different domains pass through its licence, with the vast majority still active today.
With such a long-established position and first-hand understanding of the industry from so many different brands, it should be in a great position to keep evolving its offering. Will that be true of these Winning King sister sites?
What Are the Winning Kings Pros and Cons?
Winning Kings is a well-structured casino-only betting platform, with the headline being that is boasts a game library that will rival many brands that compete in the same space. All told, there are in excess of 9,500 games to explore.
Many sites that offer vast game libraries let themselves down by making it hard for users to navigate through the plethora of titles offered. Winning Kings doesn't do that. It comes with a search functionality that is pretty sharp.
You have the more standard text search option but next to that is a filter button that enables you to narrow the game library down; it features half a dozen different filter choices, including minimum bet, game type and software provider.
As for the look and feel of the site, it's neat and tidy enough but won't win any prizes for its aesthetic. It boasts a largely black background with squared game tiles trimmed in yellow to help separate them from one another. It's functional and easy to look at, but it does feel a little bit dated.
Winning Kings Sister Sites Reviewed
There is no doubt that Winning Kings has a couple of strong elements about it, but it's also far from the perfect platform. Will any of the Winning Kings sister sites address any of the shortcomings?
Metal Casino
Metal Casino is a sister site that is easily identifiable as being part of the same network. There is very little difference across the two platforms, with the general site design and actual offering tightly aligned.
The thing you immediately notice is the design. Like Winning Kings, Metal Casino boasts the same backdrop, the same shape game tiles and the menu structure is replicated across the two sites as well.
This extends into the game filtering too, which isn't a bad thing given it's an area of strength. You could say the same for the game count too, albeit Metal Casino benefits from five more titles.
With those similarities noted, there are some subtle differences as well. One is the fact Metal Casino abandons the yellow game tile edging. It sounds like quite a minor point, but it makes quite a difference to the way the game lobby hits the eye, feeling far more modern.
The other aspect that gives Metal Casino an edge is the feeling that there is a theme flowing across the site. It leans into a "heavy metal" persona; whether that is up your street or not is another matter.
Prime Casino
Next up in our look at Winning Kings sister sites is Prime Casino. It looks different to Winning Kings and Metal Casino but mainly owing to the fact that it sits on a different colour scheme. Rather than a dark theme, Prime Casino is predominantly white, with gold highlights.
It's not to our liking, with our view that it feels rather cheap and tacky. That's not helped by the fact it really exposes the sharply cornered game tiles, which gives the game lobby a colder feel than perhaps rounded corners might do.
Look beyond some design choices, though, which we acknowledge are highly subjective, and the platform offering is once again pretty solid. You can play across a casino and live casino area, with a game haul that matches Winning Kings' 9,510 exactly. It shares the same filter and search abilities too.
An area we've not touched on yet is the banking methods offered at Winning Kings sister sites. As a rule, they are strong and Prime Casino puts seven different options at your fingertips.
These include Apple Pay, Google Pay, and Trustly, alongside more traditional methods like debit card. Your minimum deposit is £10 on all fronts.
PlayOJO
You might have realised by now that SkillOnNet sites don't vary massively from site to site. PlayOJO, though, is probably our preferred option where sister sites are concerned.
It isn't a million miles away from what has been described in some of the other brands listed here, but the site design is much more modern, and it helps to knit the customer journey together in a better way.
Despite sitting on a lighter background, it's avoided feeling cheap - unlike Prime Casino - and it's opted for sleeker game tiles and a much cleaner navigation bar that runs across the top of the game lobby.
This horizontal scroller features neat icons that are easily interpreted and the outline keeps them separated and simple to read. It's a much cleaner design choice than what the other brands use, where buttons are more cramped.
With small but noticeable design enhancements touched on, it's important to stress that you don't lose any of the other good stuff.
Deposit methods remain impressive, the game offering still tops 9,500 titles and, in fact, at 9,532, is narrowly the biggest library of the Winning Kings sister sites.
Finally, it's all underpinned with a good filter tool that enables you to really maximise the collection as well.
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Ashley, an Ipswich Town fan, is an experienced content writer in the sports & betting space, who also has an extensive background in data analytics. Those skills combine here to allow for unique angles to be taken across a host of topics.