Spin King Sister Sites: Find Alternatives in the UK (2026)
Spin King Sister Sites & Alternatives Listed
Spin King is owned and operated by Happytiger ApS. There is only one other site on the same licence, namely Happy Tiger, so we have also included some alternatives below.
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New GB customers only. One offer across sites on the same licence. Opt in at sign-up and make a deposit of min. £20 within 31 days. Bonus = 1 x deposit up to max. £100. Wager both deposit and bonus together 10x (if wagered solely on selected slots) or the equivalent of 5x (if wagered solely on bingo) or a combination of these amounts within 30 days before withdrawing winnings. Max bonus wins = £300. Full T&Cs apply. -
18+. Sign up and stake at least £10 on Casino games to receive 50 free casino spins on ‘Starburst’. Each spin is valued at £0.20. Free spins must be used within 72 hours from the time they are awarded; otherwise, they will expire. The maximum winnings from any free spins are £100. No wagering requirements. Full T&Cs apply. - Deposit and wager £20 on Casino Slots and get a £20 Casino Bonus. Bonus Funds require 10x wagering before withdrawal, with no maximum win limits. New customers only. The bonus will expire 7 days after opting in. The offer can only be claimed on the first deposit of £20 or more, once per account, and cannot be used in conjunction with the current sports welcome offer. Full T&Cs apply.
- Min deposit is £10. 50 Free Spins on Big Bass Bonanza. Spin Value: £0.10. This offer cannot be used in conjunction with any other offer. This offer is only available for specific players who have been selected by PlayOJO. Irregular play may lead to removal of rewards. OJO’s Rewards and Game Play policy applies.
- New customers only. Opt In required. £/€10 min stake on Casino slots within 30 days of registration. Max bonus 200 Free Spins on selected games credited within 48 hours. Free Spins expire after 7 days. iOS app restrictions may apply. Email/SMS validation may apply. Not available in NI. Full T&Cs apply.
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New players only. 18+. UK only. Min deposit £10 and £10 stake on slot games required. 100 Free Spins on Big Bass Splash credited automatically. Free Spins value: £0.10 each. Free Spins expire 48 hours after crediting. No wagering on Free Spins; winnings paid as cash. Eligibility restrictions apply. Full Terms of Welcome Offer and General Terms and Conditions apply.
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18+. The qualifying £10+ bet must be a single selection and have minimum odds of evens (2.00). Cashed-out, void and bets placed at SP do not qualify. Price Boosts or Enhanced Specials do not qualify. The £20 free bet will be added to your account within 24 hours of the qualifying bet settling and will be valid for 7 days. Full T&Cs apply. - Deposit & Bet £20, Get £20 (2x £10) free bets. A single bet pre-live of min odds 3.00 (2/1), a maximum of 21.00 (20/1), or an acca bet of the same odds, with each leg being at odds of 1.50 (1/2) or more. Qualifying bet must be settled within 7 days. Free bets to be used on 3+ accas with Minimum odds of 1.50, maximum odds of 21.00, and each leg at odds of 1.50 or more. Free bets are valid for 7 days after being granted. The offer can only be claimed on the first deposit of £20 or more, once per account. Full T&Cs apply.
- New customers only. Register with BETFRED50. Deposit £10+ via Debit Card and place first bet £10+ at Evens (2.0)+ on Sports within 7 days to get 3 x £10 in Sports Free Bets & 2 x £10 in Acca Free Bets within 10 hours of settlement. 7-day expiry. Eligibility & payment exclusions apply. Full T&Cs apply.
Does Spin King Have Any Sister Sites?
Unfortunately, Spin King doesn't have multiple sister sites, but at least there is one to join: Happy Tiger. The duo share the Happytiger ApS license registered with the UKGC, and there are no references to other sites.
Given that this site was launched in 2025, four years after Happy Tiger, we can expect this to remain the case for some time. It's also worth mentioning that not having multiple sister sites is not necessarily a bad thing.
Indeed, some of the best betting and casino options in the UK have few or no sisters. So, it can be a strength to keep the focus on one or two projects.
Spin King Sister Sites & Alternatives Review
Since there is only one sister site to Spin King, we have added two alternatives below that could be worth taking a look at.
🥇 Best Sister Site: Happy Tiger
Launched four years prior in 2021, Happy Tiger was the first site in the UK with the HappyTiger ApS licence. As a result, you may expect the site to be slightly further ahead.
However, this is not the case. The interface looks much less appealing and almost amateurish, especially compared to Spin King's neat look.
As a new customer too, it feels quite difficult to really see what is behind the curtain without being an account holder. This is ultimately another turn-off for many.
You can argue that the experience with Happy Tiger may have helped Spin King, and that may be true. Still, it would be nice if both options were of a similar level.
Virgin Bet
Despite primarily being a betting site, backed by LiveScore, the casino section at Virgin Bet is superb and it competes with many of the top options in the UK. Indeed, there is more than enough offered.
With games from 'Hacksaw Gaming', 'Pragmatic Play', 'Blueprint Gaming' and several more, there is so much available for customers to play. In other words, you will struggle to find a provider that isn't there.
Many different types of players are catered for, and this even shows with the payment methods offered. Whether you prefer using a debit card or an e-wallet, Virgin Bet has several options.
Spin Rider
If you have exhausted a lot of the known casinos, you may want to look at one of the Casimba Gaming sites. The company has countless casinos available and Spin Rider is amongst its best offerings.
Its interface is perhaps a bit cluttered, but with the option to search for specific games, it makes things much easier. Additionally, the different sections offered are responsive and make everything a little smoother.
In terms of the sign-up offer, it's fair to suggest that it's more customer-friendly than what Spin King offers. So, we can give the site another tick in the box there. It's certainly rare to see wager-free winnings on sign-up bonuses.
I would describe myself as an experienced punter, having taken a liking to horse racing in particular. My interest in sports is also what made me pursue a career in writing, graduating with a Bachelor's Degree in Journalism from UCFB in 2024.
At FindSisterSites, I'm responsible for testing bookies and providing our readers with the necessary sister sites insight. I try to make the most of my previous encounters with bookies to highlight what is good, bad and in between.