Best Slot Sites 2023

Written by Daisy Harrison Last time updated September 7, 2023

Online slot sites are more popular than ever in the UK, but how do you know which ones are legit and safe to play at? That’s where Legit.org comes in. With over 10 years of experience reviewing online casinos, our experts know exactly what makes the best slot sites.

Based on extensive testing and research, here are Legit.org’s top recommendations for legit and secure UK slot sites:

Top 17 Slot Sites in the UK

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How we rate?
# Casino Bonus Payment methods Link
1
LeoVegas Casino
LeoVegas Casino
5/5

100€ Bonus

Deposit Match up to £100 and 50 Free Spins

Bonus details:

Full bonus T&Cs apply.  New reg only. Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 25 wager-free spins x10p to added to Big Bass Splash with each qualifying deposit, 3 day expiry. T&Cs apply. 18+ BeGamebleAware.org


Payment methods (5 in total):
trustly.png
skrill-moneybookers.png
paypal.png
much-better.png
Licences:
United Kingdom
Close – Open +
New reg only | Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager ca …Read more
2
Casushi
Casushi
4.5/5

50€ Bonus

100% up to £50 + 50 Bonus Spins

Bonus details:

18+ New players only,100% bonus on first deposit up to £50 & 50 bonus spins for Book of Dead only, Minimum deposit £20, Maximum winnings £250, 40x wagering, game weighting applies (find the list in the full terms) #ad


Payment methods (5 in total):
visa.png
mastercard-debit.png
paypal.png
trustly.png
Close – Open +
18+. New players only. 100% bonus on first deposit up to £50 & 50 bonus spins (30 spins on day …Read more
3
Duelz Casino
Duelz Casino
4.5/5

100€ Bonus

Upt to £100 Bonus + 100 Free Spins

Bonus details:

18+ new players only. Min deposit £20. Max bonus £100. Max winnings from bonus £500. Wagering 30x deposit + bonus. 20 Free Spins a day for 5 days on Book of Dead. Max winnings from free spins £100. Wagering 45x on free spins winnings. Expires after 3 days. Not all games are equal. Play responsibly. Full terms apply. www.begambleaware.org #ad


Payment methods (5 in total):
visa.png
mastercard-debit.png
paypal.png
trustly.png
much-better.png
skrill-moneybookers.png
Licences:
United Kingdom
Close – Open +
18+ new players only | Minimum deposit: £20 | Maximum £100 bonus | Max bet with an active bonus: £2 …Read more
4
Betway Casino
Betway Casino
4.5/5

100€ Bonus

100 Free Spins when depositing and wagering £10

Bonus details:

New customers only. 18+. Opt-in required. This offer is valid for selected customers only. 100 Bonus Spins on Assassin Moon, Big Boom Riches, Arena of Gold and Aliya’s Wishes after first deposit and wager of £10+. 30x bonus wagering applies as do weighting requirements. Debit Card deposits only. This offer is valid 7 days from when your new account being registered. Irregular gameplay may invalidate your bonus. BeGambleAware.org. Bet The Responsible Way.

Full bonus T&Cs apply #ad


Payment methods (4 in total):
credit-debit-cards.png
Licences:
United Kingdom
Close – Open +
New customers only • Opt-in required • 100 Bonus Spins on Assassin Moon, Big Boom Riches, Arena of G …Read more
5
Casumo
Casumo
4.5/5

100€ Bonus

20 Bonus Spins + 100% up to £100

Bonus details:

18+ new UK customers only • Opt-in required • 20 bonus spins on Sahara Riches Cash Collect • 100% deposit bonus up to £100 • Min deposit £10 • 30x wagering • Game weighting applies • Max bonus bet £5 or £0.50/line or £10/round (live casino) • Full T&Cs Apply. #adFull terms apply #ad


Payment methods (5 in total):
credit-debit-cards.png
neteller.png
skrill-moneybookers.png
much-better.png
paysafecard.png
Licences:
United Kingdom
Close – Open +
18+ new UK customers only • Opt-in required • 20 bonus spins on Sahara Riches Cash Collect • 100% de …Read more
6
Unibet casino
Unibet casino
4.5/5

40€ Bonus

Deposit £10 Get £40

Bonus details:

New Customers Only. Minimum deposit £10. 50x wagering requirement applies. Bonus will expire 30 days after opt-in. PayPal, Paysafecard, Skrill or Neteller deposits excluded. Full terms apply #ad


Payment methods (5 in total):
credit-debit-cards.png
apple-pay.png
trustly.png
paypal.png
paysafecard.png
Licences:
United Kingdom
Close – Open +
18+ • New Customers Only • Minimum deposit £10 • 50x wagering requirement applies • Bonus will e …Read more
7
Amber Spins
Amber Spins
4/5

20€ Bonus

Exclusive Offer – 100 Free Spins + 200% Deposit Bonus

Bonus details:

18+ First-time depositors only. Min deposit £10. Promo code: SPIN100. 60x wagering on bonus winnings. Games bonus win cap £100. Free spins wagering 40x within 7 days. Free spins winnings capped at £10. Wagering contribution varies by game. Full terms apply #ad


Payment methods (4 in total):
credit-debit-cards.png
paypal.png
neteller.png
entropay.png
Licences:
United Kingdom
Close – Open +
First-time depositors only (18+ country restrictions apply) | Min deposit: £10 | Max offer: £20 Game …Read more
8
Bet UK Casino
Bet UK Casino
4.5/5

100€ Bonus

100% up to £100 and 10 wager-free spins

Bonus details:

T&Cs apply. New reg only. 2 deposits eligible. 7 days to opt-in & deposit £10, £25, £50. 7 days to wager cash stakes 35x. Game/wager contributions vary. 5x 10p free spins on Big Bass Splash each deposit, 3 day exp. 18+ BeGambleAware.org.


Payment methods (3 in total):
visa.png
mastercard-debit.png
paypal.png
Licences:
United Kingdom
Close – Open +
New players only • 2 deposits eligible • 7 days to opt-in and deposit £10, £25, £50 • 7 days to wage …Read more
9
NetBet Casino
NetBet Casino
4/5

500€ Free Spins

Up to 500 Free Spins

Bonus details:
New players. £10+ deposit. No e-wallets/prepaid cards. Bonus code required. 40x wagering on free spins winnings. Full terms apply #ad

Payment methods (5 in total):
visa.png
trustly.png
paysafecard.png
paypal.png
Licences:
United Kingdom
Close – Open +
18+ • New players • £10+ deposit • No e-wallets/prepaid cards • 40x wagering on free spins winnings …Read more
10
bet365 Casino
bet365 Casino
5/5

50€ Free Spins

50 Free Spins New Player Offer

Bonus details:

New Player Offer at bet365 – Discover bet365 Casino with 50 Free Spins • Deposit and stake £10 on eligible Casino games to get 50 Free Spins • Registration required • Time limits, game restrictions and T&Cs apply. #ad


Payment methods (3 in total):
credit-debit-cards.png
apple-pay.png
paysafecard.png
paypal.png
Licences:
United Kingdom
Close – Open +
New Player Offer at bet365 – Discover bet365 Casino with 50 Free Spins • Deposit and stake £10 on el …Read more
11
Betfair Casino
Betfair Casino
5/5

50 No Deposit Free Spins

50 No Deposit Free Spins

Bonus details:

New customers who have not played Casino only. Register using promo code CASF51. Winnings paid in cash. Full T&C applies #ad 18+


Payment methods (5 in total):
visa.png
credit-debit-cards.png
skrill-moneybookers.png
apple-pay.png
Licences:
United Kingdom
Close – Open +
New customers who have not played Casino only | Register using promo code CASF51. Winnings paid in c …Read more
12
Regal Wins
Regal Wins
4.5/5

500€ Bonus

100% up to £500

Bonus details:

1st dep. of £10-£500, max bonus £500 on selected slots; 40x wagering on the sum of deposit & bonus applies. Max convertible 5x bonus amount received. T&C’s Apply. 18+ #ad


Payment methods (3 in total):
visa.png
paysafecard.png
paypal.png
Licences:
United Kingdom
Close – Open +
1st dep only (min £10), max bonus £500, valid 7 days, on selected slots; 40x wagering on the sum of …Read more
13
MrQ Casino
MrQ Casino
4/5

30€ Bonus

30 Free Spins on The Dog House Megaways

Bonus details:

First deposit only. Min deposit & spend £10. Max 30 spins on The Dog House Megaways at 20p per spin. Spins credited upon spend of £10. Full T&Cs apply. 18+ #ad


Payment methods (2 in total):
visa.png
mastercard-debit.png
paypal.png
Close – Open +
First deposit only | Min deposit & spend £10 | Max 30 spins on The Dog House Megaways at 20p pe …Read more
14
Grosvenor Casino
Grosvenor Casino
4.5/5

30€ Bonus

Deposit £20, Play with £50

Bonus details:

Min deposit £20. max bonus £30, bonus amount non-withdrawable, playable on selected games only. Wagering requirements: 30x. Expires within 30 days. Max win £2,000. T&Cs apply. 18+


Payment methods (3 in total):
visa.png
paypal.png
paysafecard.png
Close – Open +
Min deposit £20. Max bonus £30, bonus amount non-withdrawable, playable on selected games only. Wage …Read more
15
HeySpin
HeySpin
4/5

100% up to £50 & 100 Free Spins

100% up to £50 and 100 Free Spins

Bonus details:

18+. New Players Only. Min. deposit £10. Max bonus allowed is £50. Offer duration upon receiving is valid for 2 weeks (14 days). Max Win from spins is £100. 35x wagering applies both for bonus and spins part. Spins are credited on specific games (Starburst). Spins expire after 24 hours if unused. Full T&Cs Apply. #ad


Payment methods (6 in total):
visa.png
credit-debit-cards.png
paypal.png
skrill-moneybookers.png
trustly.png
paysafecard.png
Licences:
United Kingdom, Malta
Close – Open +
18+. New players only | Min Deposit £10. Max Bonus £50 | Wagering contributions vary | 100 free spin …Read more
16
Win Windsor
Win Windsor
4/5

2000€ Bonus

Up to 1000% First Deposit Match

Bonus details:

New players only. £10 min fund. Deposit matchup % credited via bonus wheel, £2,000 max bonus, 65 x wagering requirements, max bonus conversion to real funds equal to lifetime deposits (up to £250), 18+ Full terms apply #ad


Payment methods (4 in total):
visa.png
paypal.png
paysafecard.png
Licences:
United Kingdom
Close – Open +
New players only | £10 min fund | Deposit matchup % credited via bonus wheel | £2,000 max bonus | 65 …Read more
17
Mango
Mango
4/5

100€ Bonus

100% up to £100 + 20 free spins

Bonus details:

New players only. Wager from real balance first. 50x wager the bonus. Contribution varies per game, selected games only. Wager calculated on bonus bets only. Bonus valid for 30 days / Free spins valid for 7 days from receipt. Max conversion: 3x the bonus amount of from the free spins: £20. Withdrawal requests void all active/pending bonuses. Excluded Skrill deposits. Full T&Cs apply. #ad


Payment methods (5 in total):
credit-debit-cards.png
paypal.png
much-better.png
trustly.png
neteller.png
ecopayz.png
Licences:
United Kingdom, Curacao, Malta
Close – Open +
New players only • Wager from real balance first • 50x wager the bonus • Contribution varies per gam …Read more

Best Slot Sites

Best Slot Sites by Category
best live casino
Bonuses LeoVegas Casino
Safety Bet365 Casino
Most games Casumo Casino
Best software Duelz Casino
Best on Mobile Unibet Casino
Fastest withdrawals Casushi Casino

How We Rate and Rank Slot Sites

With so many slot sites to pick from, it can be hard knowing where is legit and safe. That’s why we thoroughly test and vet each site against strict criteria.

At Legit.org, we’ve perfected a tried-and-tested process for reviewing and ranking slot sites. We look at key factors like:

By thoroughly assessing sites against the above criteria, we can identify the cream of the crop that provide a premium, safe and rewarding slot experience for players.

Are Slot Sites Safe?

The key to spotting rogue casinos is checking for proper licencing from the United Kingdom Gambling Commission (UKGC). This ensures oversight of operations and adherence to regulations around safety and responsibility.  

Here at Legit.org, we do the background check for you. However, if checking for yourself gives you peace of mind, here are some other signs of unsafe slot sites:

  • No SSL encryption or padlock in URL bar
  • Limited banking options and slow withdrawals
  • No defined responsible gambling policies
  • Poor transparency around ownership and operations
  • Good customer support channels

Our top slot sites all hold valid UKGC licenses and exceed minimum safety requirements. We also regularly re-evaluate sites to ensure they maintain high standards.

But despite the most rigorous checks, slot sites are still casinos. This means your bankroll is always at risk. To manage this, we advise following responsible gambling guidelines:

  • Set deposit limits and monitor spending
  • Take timeout breaks when needed
  • Never chase losses or play when frustrated
  • Balance play with other activities

As long as you gamble responsibly, play at regulated sites, and avoid rogue operators, online slot sites present you with a fun, safe pastime.

Factors to Consider at UK Slot Sites

Slot Site Bonuses & Promotions

Bonuses give your bankroll a boost and let you spin the reels for longer. They also give you an incentive to join a site over another, and a chance to play new slot releases.

Here are the main types of casino bonuses available at slot sites:

Claiming a bonus at a slot site is a great way of deciding whether the site is for you. However, it pays to read the T&Cs. Most bonuses come with wagering requirements, expiry periods, and minimum deposit restrictions.

That said, the best slot sites provide fair terms around bonuses plus regular promos to keep gameplay exciting.

Key Insights

To maximise your bonus, consider the following:

  • Check wagering requirements before claiming
  • Use free spins on high RTP slots
  • Clear bonuses quickly to withdraw any winnings
  • Avoid “too good to be true” deals

Slot Software and Providers

Your enjoyment of slot sites largely boils down to the software and game developers. Top providers captivate players with high-quality slots featuring engaging graphics, themes, and features.

Here are leading slot developers and their key characteristics:

By offering games from multiple top providers, the best slot sites give you an exceptional variety of high-quality games to enjoy.

Slot Site Game Selection and Variety

No two online slots are the same. For the ultimate experience, slot sites need to provide extensive game selections covering different slot types, themes, and features.

Here are examples of slot variety to look for:

When picking a slot site we recommend taking a deep dive into the slots collection first, paying attention to the types of games, as well as providers. Naturally, the slots on offer make a huge difference to how suitable the site is for you.

Key insights

Most of our top slot sites also offer demo slots, so you can try games without spending your hard earned cash! However, this requires you to sign up to the site.

Instead, we recommend checking out best slot sites such as Online-Slot.co.uk. Here you can find in-depth slot reviews, slot site reviews and demo slots. It’s the perfect port of call for slot fanatics.

Jackpots and Progressive Slots

Progressive jackpot slots give you the chance to win life-changing sums from a single spin. Their jackpots rise continuously as players across the UK bet, often reaching millions before one lucky player triggers the top prize.

Popular examples include Mega Moolah and Hall of Gods from Microgaming, plus progressives like Age of the Gods from Playtech.

Slot RTPs and Volatility

Return to Player (RTP) indicates the statistical % of wagered money a slot pays back over time. UKGC rules require RTP rates of at least 84%. Higher RTPs give better winning chances, so 96-97% is good. However, slots with big jackpots often have lower RTPs while compensating through more sizeable wins.

Volatility or variance affects how often and at what scale wins are awarded. Low volatility slots pay out frequently but in smaller amounts. Highly volatile slots pay out less often but with bigger wins.

Checking a slot’s RTP and volatility helps decide if it’s a good fit for your preferences. The top slot sites clearly display this info. Choosing a range of RTP rates and variance keeps gameplay varied.

Mobile Slot Sites

Most players now enjoy slots on mobile, so the best slot sites optimize for flawless mobile play. Here’s how to assess mobile slot sites:

  1. Mobile Site – Check the site is responsive on all devices, with gameplay just as smooth as desktop.
  2. Mobile App – Check for a dedicated app for iOS and Android devices, as this  allows quick play on the go
  3. Responsiveness – Gameplay, navigation and buttons should all be fast and reactive without lag or delay.
  4. Display – Expect retina-quality graphics and an adaptive user interface suitable for smaller screens.
  5. Features – A mobile slot site should offer a full range of games. The functionality should also match the desktop experience

The convenience of mobile play makes sites with well-built apps or fully optimized mobile sites a must. This ensures easy access to your favorite slots on the move.

It’s up to you whether you opt for a mobile slot site app, or simply a slot site you can run from your mobile browser. However, for reference, here are the key differences:

Mobile Slot AppsMobile Slot Sites
✅ Download directly on device✅ Play instantly in mobile browser
✅ Offline play supported✅ All games playable across devices
Push notifications for offers❌ Need to log in each time
Faster navigation between games❌ No installation needed
❌ Occupy storage space❌ Require internet connection

Deposits and Withdrawals at Slot Sites

Making fast, easy payments enhances your slots experience. You can top up faster for more spins, or cash out quicker when you win big.

Payment options vary per operator, just like at online casinos. At most UK slot sites, you will always be able to use your debit card, and other popular methods include e-wallets such as PayPal, Skrill, and Apply Pay are also available.

Key insights:

UK slot sites are not allowed to accept credit card deposits. This is enforced by the UKGC.

Let’s take a look at the most popular payment methods you can choose:

Best Deposit and Withdrawal Methods at Slot Sites
Payment MethodWhy Choose ItWithdrawal Time on Average
visa-debit-iconAccepted at almost all slot sites1-7 days
paypal.logo.smallTrusted brand with fast payouts24 hours
applepay-logo-smallEasy and convenient for iOS usersN/A
neteller-logoWidely accepted1-2 days
Designed with online gamblers in mind1-2 days
paysafecard-logoPre-paid option, doesn’t require bank detailsN/A
boku_logo_smallPerfect for mobile playersN/A
trustly-logo-smallNo registration required1-2 days
Key insights:

The best slot sites process withdrawals quickly and don’t charge fees. Slow cashouts or complex limits are signs of an untrustworthy operator.

Tips for Playing at Slot Sites

Follow these expert tips from Legit.org to stay safe, and boost your success when playing online slots:

Conclusion

Online slots offer an exciting way to win real cash in the comfort of your own home. With a dizzying number of UK slot sites out there, finding one that’s fun, fair and secure can seem daunting.

By cutting through the noise and recommending only the most legitimate sites, Legit.org takes the stress out of selecting a trusted place to play slots online. Our top picks provide everything discerning players expect – tons of high-quality games, big jackpots, generous bonuses and smooth mobile play.

Follow our advice in this guide and you can look forward to countless hours of safe, responsible slots fun. Don’t just take our word for it – experience Legit.org’s top rated slot sites for yourself today!

FAQs

Are online slots rigged?

No. Slots at licensed casinos use certified random number generators to ensure fair outcomes. Reputable sites are regularly tested for fairness.

Can you win real money playing online slots?

Yes! If you play at a legitimate online casino you can win and withdraw real cash jackpots. Winnings are paid into your account, though make sure to clear wagering requirements first.

What slot sites accept PayPal?

Most top UK slot sites accept PayPal deposits and withdrawals. The e-wallet is becoming very popular, as it offers fast and secure payments.

Do slot sites offer free games?

Yes, most will let you try demo versions without betting real cash so you can test slots first. Some also offer free spins bonuses.

We personally evaluate and compare all available online operators, providing our users with up-to-date and detailed information. Find our evaluation criteria in the reviews.