Slots King review (2026)

UKGC licensed#546 in our rankingProvisional score

Operator: Eaton Gate Gaming · UKGC account 44448

8.2

Slots King review: our verdict

Our Slots King review verdict: Slots King is an Eaton Gate Gaming casino on a licence shared with a few sister sites. The licence and operator are confirmed on the UK register, but we could not confirm a current welcome offer, payment methods or app from a reliable, recent source.

This is a short provisional review, based on the UK register. We will expand it and replace the score after our own test.

Slots King score breakdown

This is a provisional score, based on public information about the licence, offers, payments, games and apps. It will be replaced by a full score after our hands-on test. Weights and criteria are explained on how we score casinos.

Slots King welcome offer

We could not confirm a current Slots King welcome offer from a reliable source. Offers on Eaton Gate Gaming sites change often, so read the promotions page and its terms before you deposit, including the wagering, expiry and any promo code. Pages listing Slots King bonus codes are unofficial unless the site shows the same code.

Is Slots King legit?

Yes, Slots King is legit. It is licensed by the UK Gambling Commission to Eaton Gate Gaming Limited, account 44448, which you can check on the public register. The licence requires Slots King to verify every player, offer deposit limits and time-outs, and take part in GamStop. In December 2022 the Gambling Commission imposed a £480,305 financial penalty on Eaton Gate Gaming, with a warning and a third-party audit, over anti-money laundering and customer interaction failings. That is below the level at which our scoring rule lowers the licence score.

Who owns Slots King?

Slots King is run by Eaton Gate Gaming Limited, the company behind kwiff.

Slots King sister sites

Slots King sister sites on the same licence include GRP Casino and Kwiff. Our Kwiff review covers one of them. A self-exclusion with the operator covers every brand on the licence.

Slots King games

We could not confirm the size of the Slots King game library from a reliable source. UK slot rules apply: a £5 maximum stake per spin, or £2 for players aged 18 to 24, and no autoplay or bonus buy.

Slots King withdrawals

We could not confirm Slots King withdrawal times or payment methods from a reliable source. As at every UK licensed site, your identity must be verified before your first withdrawal, so upload documents early.

Slots King app

We could not confirm a Slots King app. The site works in your phone's browser.

Slots King welcome offer and promo code

Slots King promo code. We could not confirm a Slots King promo code.

Slots King no deposit bonus. We found no current Slots King no deposit bonus from a reliable source.

Safer gambling at Slots King

Slots King offers deposit limits, reality checks, time-outs and self-exclusion. For a block on every UK site, use GamStop. The National Gambling Helpline on 0808 8020 133 is free and confidential.

How to join Slots King

1. Open an account using your real details. Like every UK licensed casino, Slots King has to verify who you are, and details that do not match can hold up your first withdrawal.
2. Open the promotions page before you deposit. We could not confirm a current Slots King welcome offer, so read the offer on the site and its significant terms yourself.
3. Check the wagering, the minimum deposit, the time limit and any cap on winnings. Under UK rules wagering cannot be more than 10 times the bonus.
4. Set a deposit limit in your account settings before you play. It takes a minute and you can lower it at any time.

What to check in the Slots King offer terms

Without a confirmed Slots King offer to describe, the useful thing is to know what to read when you find it. UK rules put the significant terms next to the offer, so these points should be easy to spot.

• Wagering. Since 19 January 2026 it cannot exceed 10 times the bonus. No wagering is better still.
• Minimum deposit. And whether every payment method counts towards it.
• Time limit. How long you have to use spins or clear wagering.
• Win cap. Any limit on what you can win or convert from the bonus.
• Promo code. Use a code only if the site itself shows it.

Slots King and the Eaton Gate Gaming network

Slots King is one of 3 brands on the licence of Eaton Gate Gaming Limited. Its score of 8.2/10 is below the average of its sister sites, 8.5/10, and puts it #2 of 3 in the group. The highest rated sister site is Kwiff at 8.7/10.

We have confirmed offers at 1 of its 2 sister sites, 1 of them with no wagering. Offers are often limited to one per person across a group, so compare the sister sites before you register rather than after.

How Slots King ranks in our UK list

Slots King is #546 of the 659 UK licensed sites we review. Its 8.2/10 compares with an average of 8.4/10 across all reviews and 8.3/10 across our short provisional reviews. Its strongest category is licence and safety at 10.0/10 and its weakest is bonus terms at 7.0/10, because we could not confirm a current offer.

The score is provisional. It uses fixed values for each category from public information, so it moves when we confirm more facts or complete our own test. Our scoring page shows the rule for each category.

Who Slots King suits

Slots King is a straightforward licensed casino, and the facts we have do not point to a particular type of player. Look elsewhere if you want a confirmed welcome offer before you sign up, you need a specific payment method (we have not confirmed the list) or you prefer a native app to a mobile site.

What we checked for this Slots King review

For this review we confirmed the licence holder, Eaton Gate Gaming Limited, and its UKGC account on the public register (checked 21 October 2026), the domain slotsking.com listed under that licence, the 3 brands that share the licence and whether the licence holder has a public enforcement record. Not yet verified: withdrawal times, the payment methods, the size of the game library, whether there is a live casino, whether there is an app and the welcome offer. Where the review mentions those, it says so, and we do not fill gaps with guesses.

Spotted something that has changed at Slots King? Tell us, and we will check it against the source and update the review.

Slots King vs similar sites

Slots King compared with three other UK licensed sites from our reviews.

Slots King vs Crush It. Crush It has no confirmed welcome offer yet; the licence and operator are confirmed on the UK register.

Slots King vs Happy Tiger. Happy Tiger has no confirmed welcome offer yet; the licence and operator are confirmed on the UK register.

Slots King vs King Spin. King Spin has no confirmed welcome offer yet; the licence and operator are confirmed on the UK register.

Slots King review: FAQ