Best Slots Casinos UK

Slots are the centerpiece of most online casinos, but not all have the best and newest games on offer. If you want to play online slots, look no further. The below online casinos have the greatest variety of video slots, as well as huge jackpots and the most generous bonus offerings.

  • UK LicensedUK Licensed
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18+ Advertiser Disclosure
Top Casino 2023
Mr Q
Rate it! (688)
Best Overall
Visit Mr Q
First deposit only. Min deposit & spend £20. Max 75 spins on Eye of Horus Megaways Jackpot King at 10p per spin. Spins credited upon spend of £20. Full T&Cs apply.
Grand Ivy Casino
100% Bonus Match Up To £300 + 25 Bonus Spins
Rate it! (89)
Visit Grand Ivy Casino
18+. New players only. Min. deposit £20. Max. bonus bet £5. Bonus spins on selected games only and must be used within 72 hours. Winnings from Bonus spins credited as bonus funds and capped at £100. Bonus funds expire within 30 days. Offer is 100% bonus match up to £300 + 25 bonus spins on your 1st deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds count towards wagering contribution. Affordability checks apply. Terms apply. Please gamble responsibly.
Pokerstars Casino
200% BONUS UP TO £300 + 100 FREE SPINS
Rate it! (197)
Very Good
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Min. deposit £10 with code ‘BONUS300’. Debit card only. Wagering requirements apply. Selected Slots only. 5 redemption points per £1 to clear bonus. Game contributions vary. 7-day expiry. Terms apply.
Grosvenor Casino
Rate it! (1172)
Very Good
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New customers only. Min deposit £20. Max bonus £30, bonus amount non-withdrawable, playable on selected games only. 30x wagering for £30 bonus. Expires within 30 days. Max win £2,000. T&cs apply.
Playzee Casino
100% UP TO £300 BONUS + 100 SPINS + 500 POINTS
Rate it! (821)
Very Good
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18+. New players only. Min Deposit £20. Max Bonus Bet £5. Winnings from spins capped at £50. 100 Zee Spins valid on Starburst (first 10 credited immediately upon first deposit; rest credited at 07:00 GMT at 10/day). Spins must be used by 23:59 GMT of the day on which they are credited to player account, any unused shall be removed. Bonus funds must be used within 30 days. Bonus funds are separate to Cash funds, and subject to 35x wagering (bonus + cash). Full terms apply.
Magic Red
Rate it! (188)
Very Good
Visit Magic Red
18+. Terms and Conditions Apply. Available only on Big Bass Bonanza game. Min. Deposit £10. Offer valid for 24 hrs. No wagering is required. See full terms here.

What makes a slots site especially recommended by our team?

Game variety is the most important component that makes a site better than its competition. No slots site is created equal in terms of the amount of games they offer, but it stands to reason that the sites that have more games to choose from are more worth a slot enthusiast’s time than a site that has relatively few selections.

And it isn’t enough for a site to just have a large number of games to choose from. Each site should aspire to offer a diverse range of slot game types, including three and five-reel slot games and a decent collection of progressive jackpots.

The best slots sites will feature games from a number of different software providers. Each provider offers something unique in terms of licensed games (think Marvel, Lord of The Rings etc.) and in terms of the style and graphics of games that they can bring to the table.

Outside of the slots games themselves, players should look for sites that offer plenty of fun promotions and generous bonuses. Slots are fun, but they are even more fun when you get a large bonus or a number of free spins on top of anything you deposit. Those bonuses, along with promotions like weekly reimbursements and VIP programs can often enhance the online slots experience in a big way.

Finally, players should only play slots with a site that is considered trustworthy. With so many online casino sites in the industry today, players want to be confident that their money and personal information are being handled safely. To do that, players should look for sites that are licensed in the UK and where the customer support is readily available via telephone, live chat or email.

Advice for playing online slots

Online slots players should be sure to check the RTP percentage of every game that they play, and compare those percentages to get an idea of what kinds of payouts they may be able to expect over a large sample size. The RTP (return to player) percentage tells players what percentage of their funds they can expect to see returned to them over a massive sample size of spins in the long run.

However, players who take small runs at each slot game shouldn’t take that number too seriously either, as payouts in small sample sizes can fall above or below that line on a regular basis. If you are a player who takes on the slots for short bursts at a time before switching to a new game, you are probably fine playing games that are at least comparable in RTP given that you are unlikely to meet the sample size requirements to get that return percentage in the first place.

The next, and possibly most important, piece of advice that slot players can take in before they take to the reels is to play within a set budget. There are so many slot games out there, and most of them offer great graphics and extremely fun interactive elements. But that shouldn’t give a player the idea that they should bet more than they can afford on the slots. Playing responsibly is a valuable skill, as doing so can keep slots as fun as they were intended to be.

Finally, online slots players should be on the lookout for places where they can try different slot games for free before they put real money into them. Some sites offer demo modes on games where bettors can check out a game’s mechanics and see if they like the graphics and other components to the game before they begin wagering. Doing this will save a bettor the headache of having to spend some credits just to find out what they think of each slot offering.

Frequently Asked Questions (FAQ)

Are online slots really random?

Yes, if you play at one of our recommended sites. This is because all their slots use Random Number Generators (RNGs) and these are tested for randomness by gaming regulatory bodies and third-party editors like Gaming Laboratories International and eCommerce Online Gaming Regulation and Assurance (eCOGRA).

Can online casinos change the payout on slot machines?

Well, it is possible but it’s not simply a matter of switching chips or changing the weight on the reels. These changes involve paperwork and have to be reported to the gaming authorities so no, they can’t alter payouts while someone is playing.

What is a progressive jackpot?

A progressive jackpot means that the jackpot accumulates each time the game is played but the jackpot is not won. It can be in a single game or linked to multiple slot machines.

What are free spins?

Free spins are spins on any slot machines that you don’t have to pay for - awarded either as part of a welcome bonus or promotions. It’s a fun way to play new and exciting slots without spending your cash.

Is there a best time to play online slots?

No, if there is then they would be very unfair to clients playing from the other side of the world. The reality is that the RNG in these slot machines can’t tell what time it is nor do they have any memory of previous spins. This means that the time you play won’t have any impact on your chances of winning or losing.

Does the amount of money I deposit impact my chances of winning in slot games?

Not at all. Again, the RNG will ensure that each of your spins stands a fair chance of winning. If there’s anything your deposit can influence, it would be the value of match bonuses or game features that are available only at a certain deposit amount.


We offer this free online resource with the intention of providing helpful content and comparison features to our visitors. All ratings on this site are determined by our subjective opinion which is based on our analysis of the UK online casino market (our methodology incorporates a brand's market share and reputation, quality of customer support, number and types of games on offer, promotions, bonuses, reader reviews and more). This comparison site is supported by payment from operators who are ranked on the site and the payment impacts the ranking of the sites listed. A brands listing on this website DOES NOT imply endorsement. We cannot and do not feature all brands in the UK online casino market. Except as expressly set forth in our Terms of Use, all representations and warranties regarding the information presented on this page are disclaimed. The information, including pricing, which appears on this site is subject to change at any time.
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