Our best online casinos list brings you some of the top UK casinos available in March 2025. Whether you’re looking for promotions, new games or just somewhere different from your usual site – our online casino reviews can help.
Best UK online casino reviews of 2025: Quality casinos tested
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Mr Q
UK LicenseNo wagering on bonus
Award-winning
MrQ Casino Review
18+, new customers only, First deposit only. Min deposit & spend £10. Max 30 spins on Big Bass Splash at 10p per spin. Spins credited upon spend of £10. 18+ Full T&Cs apply. Full T&C’s apply, BeGambleAware.org #AD -
The Pools Casino
UK LicensePlay top UK slots, classic football pools & real lottery games all in one place
Weekly free spins, free bets & prize draws from just £10/month
The Pools Casino ReviewNew customers only. 18+, UK only. Full T&Cs apply. BeGambleAware.org #AD -
888 Casino
UKGC LicenseNo deposit bonus with 1x Waggering
World-class brand
888 Casino Review
18+, new customers only. Deposit Bonus T&Cs apply, No Deposit Offer: New players with valid mobile number only • Claim in 48 hrs • 14 day expiry • Valid for selected games • Pre-1st deposit only: FS voucher winnings is uncapped, bonus wins & max redeemable amount for non-funded players capped at £100, excl. JP wins • Wager Bonus x1 – req. contributions vary by game • Bonus expires in 90 days • Deposit Offer: 1st time depositor at 888casino only • £20 min deposit • Claim in 48 hrs • Valid for selected games • Bonus wins capped at £500, excl. JP wins • Pre-1st deposit only: Bonus wins & max redeemable amount capped at £100, excl. JP wins • 30x wagering – req. vary by game • Bonus expires in 90 days • Payment method & country restrictions apply • Withdrawal terms, No Deposit Offer terms & Deposit Bonus Offer terms .BeGambleAware.org #AD
UK License
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Prime Slots
UK LicenseScratch cards, online slots and live casino games
Daily rewards, free spins, tournaments
Prime Slots Casino Review
18+, Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Min. deposit: £10. Game: Thor, Spin Value: £0.1. WR 60x 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. Bonus Policy applies. BeGambleAware.org #AD -
Swift Casino
UK LicensePlay top UK slots, classic football pools & real lottery games all in one place
Weekly free spins, free bets & prize draws from just £10/month
Swift Casino ReviewAutomatically credited upon deposit. Cancellation can be requested. First Deposit Only. Max. Bonus £75. Maximum amount of Free Spins is 50. Game: Book of Dead, Spin Value: £0.10. WR of 30x Deposit + Bonus amount and 60x 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. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies. -
Prime Scratch Cards
UKGC LicenseInstant win games, scratch cards, slots and live casino
Members only special bonuses and rewards
Prime Scratch Cards Review18+, Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Min. deposit: £10. Game: 7 Piggies 5000, Spin Value: £0.25. WR 60x 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. Bonus Policy applies. BeGambleAware.org #AD
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Karamba Casino
UKGC LicenseVirtual sports
Karamba VIP
Karamba Casino Review18+, new customers only, T&Cs apply, 35x wagering, min deposit £10. BeGambleAware.org #AD -
Betfred Casino
UKGC LicenseLive Casino
World-wide brand
Betfred Casino Review118+,New customers only. Register with code GAMES100. Deposit, using a Debit Card, and stake £/€10 or more, within 7 days, on Slots at Betfred Games to receive 200 Free Spins on selected titles. £/€0.10 per spin. Free Spins credited within 48 hours. Free Spins are valid for 7 days. Full T&Cs apply.BeGambleAware.org #AD
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Mr Green Casino
Why Here?
Stake £10, Get 100 FS at 10p on Big Bass Bonanza
0x Wagering
SIGN UP118+. Play Safe. New customers only. Opt in required. 1x per customer. Min. £10 stake. Max. 100 free spins at £0.10/spin on Big Bass Bonanza only. Bonus expires 72 hours after issue. Game weighting, game, country, currency, player restrictions and terms apply. BeGambleAware.org #ADMr Green Casino Review
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Casiplay
Why Here?
Bonus
Up to £800 Bonus + 100 Extra Spins
SIGN UP18+, new customers only, T&Cs apply, wagering bonus 35x, min deposit £20. BeGambleAware.org #ADCasiplay Casino Review
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Grosvenor Casinos
Bonus
Deposit £20 play with £50 – Just 5x Wagering
SIGN UPNEW CUSTOMERS ONLY. MIN DEPOSIT £20 (EXC PAYPAL). 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 BeGambleAware.org #ADGrosvenor Casino Review
We review safe, trusted and quality casinos selected from hundreds of sites
Every month, we review new casinos covering every player point and question. To make our list, the casino needs to have a license from the UK gambling commission, responsible gaming tools and high-quality content. In our reviews, we focus on new casino offers, security, slots and games, platform and reputation – so you can focus on the gameplay and promos. We look for quality casinos that UK players can trust; safe sites with great entertainment.
How we choose the right online casino in 2025
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1. UK Licensed Casinos
The UK Gambling Commission license and regulate the people and businesses that provide gambling in Great Britain. If you’re looking for the best quality casinos, you’ll want a UK licensed online casino. Every online gambling business licensed by the UKGC must display a notice and link back to the Gambling Commission website.
Slotsquad recommends UK licensed casinos because they’re safe, trusted and regulated. Plus, these sites must provide you with certain information as a condition of their license. This includes:
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2. Casino Sign Up Bonus
Slotsquad UK online casino reviews include the latest sign up bonuses and welcome offers at each site. If you’re unsure of which type of sign up bonus to go for – our reviews will help you choose the best one for your needs and budget.
When we review online casinos, we look at how good the offer is for new customers on registration. In 2025, competition is fierce amongst the top sites – so it’s no surprise to find the best welcome bonuses if you look carefully.
Whether it’s a no deposit bonus, slot bonus, free spins or a 100% first deposit match up to £200 with extra spins – we’ll show you exactly what’s on offer.
Different types of Sign Up Bonuses in our Reviews
Free Bonus No Deposit Welcome Offer
First Deposit Casino Sign Up Bonus
First Three Deposits - Match Bonuses
Free Spins No Deposit
Deposit Bonus + Free Spins Combination
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3. Security
If you want a safe online casino, you want security. At Slotsquad, you’ll find sites with 128-bit SSL encryption as standard while some of the new casinos might use 256-bit SSL. Either way, it means your personal data and banking information remains protected at all times.
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4. Mobile Casino
This option will depend on how much you use your mobile to play casino games, make cashier deposits or withdraw winnings. But the best online casino review should include everything about the platform – a mobile casino is no exception. In 2025, high-quality casinos should work on all devices; be it mobile, tablet or desktop.
Our UK online casinos list currently features 38 websites that work on absolutely everything. In each review, we’ve tested all brands on iOS and Android. Played games, checked menus and operated the software using smartphones.
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5. Free Play
The rules around free play casino in the UK have changed, but free demo games are still available. You just need to sign up, complete age verification checks, and you’re good to go.
In our UK casino reviews, we’ll tell you whether you can play free demo slots and games following registration – in most of them you can.
We review free play based on the number of games available, the game providers and the age of the games. If you can play new slots for free, and from the top developers – we’ll add extra points.
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6. Slots and Casino Games
From NetEnt to Play’n Go, online slots to live roulette, when it comes to entertainment content – you want the lot. That’s why we focus on slots and games when we review UK online casinos. Our rule of thumb is quality over quantity; we always use that rule.
Just because you can play 800 games doesn’t mean all of those 800 games will be any good. This is how we find the best online casinos – by weighting originality, quality and variety within their slots and games library.
We score reviews based on the following:
If you’re trying to choose which casino to sign up with, we can help make sure you don’t get stuck with boring games and minimal choice. We select quality casinos with new slots, the latest games and lots of variety.James | Slotsquad Review Team
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7. Promotions
Online casino promotions are a type of promotion that comes after the sign up bonus. They can range from seasonal offers like Christmas slots bonuses or Easter casino bonuses; to the more frequent daily free spins or monthly cash back. Our UK online casinos reviews include everything you need to know about promotions.
On this page, you’ll find the top of the top – the very best online casinos for UK players looking for promos, bonus codes and VIP clubs.
Our list of 38 sites includes some of the most exciting promotions you’ll find following sign up. While we like welcome bonuses, it’s what comes after that counts.
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8. Responsible Gambling Tools
Unlike some UK online casino reviews, we like to include information about responsible gambling tools. While it’s easy to say stop when the fun stops or don’t overdo it, in reality, that’s not helpful or practical for some players.
It’s, therefore in the interest of the gaming company to have a responsible gambling policy, responsible gaming tools and links to advice and guidance. In each Slotsquad review, you’ll find a list of any tools and systems at that particular casino to help players stay in control.
Ready to play? Check out the 10 best online slots in the UK