SpinKing Review:

Denmark-based innovators Happy Tiger first launched their new casino, Spin King, in 2025. This is a kingdom where slots rule and everything else is out. If you’re looking for table games or live dealer titles, you won’t find them here. But if slots are what you’re after, this might be the regal-themed iGaming site for you, so keep reading this Spin King Casino review to learn more.

Spin King is registered with the prestigious UK Gambling Commission (UKGC), meaning it is held to the highest standard of player safety, fair gaming, and responsible gambling. To ensure every game outcome is random, random number generators (RNGs) are used on each and every game and tested by independent agencies like eCOGRA. This means everything is left to chance, and you’ll never have to worry about an unfair draw.

There is a separate “Safer Gambling” page at Spin King Casino that is one of the most comprehensive we’ve seen. There is tons of detailed advice on how to gamble responsibly and support those who may have a problem.

Spin King Casino also provides links to responsible gambling charities like Gamstop and Be Gamble Aware, whose helpline number and website link are constantly displayed at the top of the homepage. It’s easy to preach, but Spin Kings puts this into practice, and as such, it really feels as though players are in safe hands.

UK online casino players can fund their accounts and cash out their winnings using some of the most secure and popular payment methods at Spin King Casino. Deposits are available via Visa and Mastercard debit cards, PayPal, Apple Pay, and Trustly. All these options, excluding Apple Pay, are also available for withdrawals.

With a £10 minimum deposit and withdrawal limit and no upper limits, Spin King appeals to budget bettors and high rollers alike. There are no fees applied to deposits and withdrawals above the minimum £10. But if you want to pay less for a low-stakes trial and cash out an amount below this limit, you’ll be faced with a £1 fee. Plus, PayPal withdrawals have a 3% fee, which we’re not so keen on.

All new Spin King subjects are treated to a lucrative welcome bonus after placing their first deposit. Firstly, his highness will match your deposit with bonus funds, essentially doubling your bankroll and giving you twice as much money to spend on your favourite slots.

The minimum deposit limit is £20, which is slightly higher than other UK online casinos, but Spin King also throws a handful of free spins on top of its deposit match welcome bonus. The best part is that there is no wagering requirement attached to your free spin winnings, which means you get to keep every single penny that you win!

This sign-up offer provides a great way for new players to get to know this online casino and see if this is the place they want to play, all without having to pay the king’s price.

However, as a sister site to Happy Tiger, Spin King online casino will recognise the personal details of any member who has played at one of their other casinos before. And when it does, you can kiss that bonus goodbye. The idea here is that Happy Tiger and Spin King are a family of casinos, and if they share Happy Tiger games, they share Happy Tiger bonuses, too. And if you’ve already claimed a welcome bonus at Happy Tiger, you won’t be able to claim one at Spin King, too.

Still, for brand-new players who are looking for a nice kick-start to their Spin King Casino adventure, the UK iGaming site’s sign-up deal is generous enough.

When you enter Spin King online casino, you’ll be met with a sleek and vibrant homepage with a dark blue and gold colour scheme that certainly feels like a royal welcome. Alongside a handy search bar towards the top of the page, you’ll soon spot two key page headings to help filter your gaming options: “Slots” and “Jackpot Slots”.

That’s right – you won’t find any RNG table games or live dealer titles here. Fans of roulette, blackjack, baccarat, and poker may be left disappointed. But with a name like Spin King Casino, were you really expecting anything other than slots?

Specifically, the UK online gambling site is home to over 550 online slot machines, including several exclusive titles that you’ll only find at Spin King and its sister sites. We very much enjoyed the Spin King exclusives like hunger-inducing Betty’s Burgers, the adventurous Viking Saga: Riches of Odin, and Temple of the Sun.

These slots come from some of the industry’s leading software developers. Yes, we’re talking about big names like Big Time Gaming, NetEnt, Pragmatic Play, and Red Tiger. You can even filter games by specific provider by simply clicking on the software developer’s logo.

While you may find larger game libraries at other UK online casinos, it’s clear that Spin King focuses on quality over quantity. You can find dozens of fan favourites in the casino’s easy-to-navigate games lobby, including Big Bass Bonanza, Reel King, Gates of Olympus, Danger High Voltage II, and Hand of Midas II.

Another great feature of Spin King Casino is the “Jackpot Slots” collection. With around 35 games to explore, including Temple of the Sun, Joker’s Club 3, Diamond Express, and the brand-new Robin Hood Treasures of Sherwood, there is plenty to sink your teeth into. The grand jackpot prize pots of these games range from £10,000 to £20,000, meaning just one spin can change your life.

Spin King Casino doesn’t yet offer a dedicated mobile app on the Apple App Store or Google Play Store. It’s not too much of a problem, though, as we’re happy to report that the site is built on HTML5 technology and optimised for mobile browsers. The mobile version of the site works well on all devices, from Android to iOS smartphones and tablets, and thanks to collapsible menus, it’s just as easy to navigate.

While a native casino app may provide unique benefits like notifications, superior usability and improved connectivity, the mobile browser site is a great alternative for those who prefer the convenience of gaming on the go. Simply search for Spin King in your mobile device’s browser, such as Safari or Google Chrome, and you’re good to go!

Spin King offers very few promotions for returning UK online casino players. A royal pain to be sure, and pretty disappointing if you ask us, as it’s certainly not the way to get your royal subjects to keep playing with you. Spin King Casino seems pretty capable when it comes to player friendliness, as seen through its lucrative welcome bonus with fair terms and conditions, but this isn’t reflected in its reload promos page.

But let’s not form a mob outside the castle just yet, as Spin King is a new casino, and it’s clear that Happy Tiger has got more in store for this royal place to play your slots.