Best Online Slots UK: Top UK Slots Sites in 2024

The best online slots and top slot sites are reviewed by the Gambling.com team of slot experts and ranked here, along with the latest UK slots bonuses and offers.

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  1. Our Top Pick
    Extensive Library of Slots & Jackpot Slot Games
    Weekly 'Rainbow Friday' Cashback
    Earn Spins on 'The Wheel of Vegas'
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    Tooltip The usual withdrawal processing time
    1-3 Days
    Online Slots
    Tooltip The total number of online slot games available
    3121
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    189
    Slot Providers
    Tooltip The number of different slot game software providers
    167
    Mr Vegas Casino stands out with its vast games inventory, including thousands of slots titles. It also offers a 'Rainbow Treasure' reward program - the more you stake during the week, the more cash-back you get the following Friday (up to £300 per day).
  2. All Relevant Deposit Methods
    No Fees At All - Deposit & Withdraw
    No Max Cash Out
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    Tooltip The usual withdrawal processing time
    72h
    Online Slots
    Tooltip The total number of online slot games available
    1977
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    3
    Slot Providers
    Tooltip The number of different slot game software providers
    48
  3. Awarded ‘Casino of the Year’ 2017 & 2018
    Win Prizes in Daily Online Slots Tournaments
    Official Partner of F1 McLaren Racing Team
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    Tooltip The usual withdrawal processing time
    1-2 Days
    Online Slots
    Tooltip The total number of online slot games available
    1445
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    248
    Slot Providers
    Tooltip The number of different slot game software providers
    11
    Part of the multinational gaming group Entain, Party Casino offers a huge range of progressive jackpots and exclusive online slots tournaments, with 24/7 support.
  4. Sleek & Original Pub Theme
    Dual Casino & Sportsbook Platform
    Tournament Leaderboards & Prizes
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    40x
    Payout Time
    Tooltip The usual withdrawal processing time
    24h
    Online Slots
    Tooltip The total number of online slot games available
    1997
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    0
    Slot Providers
    Tooltip The number of different slot game software providers
    17
    Pub Casino won't offer you a pint but there is no closing time at this establishment, with customer support at hand 24/7. We also like their straight forward welcome bonus of 100% up to £100.
  5. UK Casino Site of MGM Resorts International
    Exclusive 'MGM Millions' Jackpot Games
    Celebrity UK Brand Ambassador Chris Rock
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    Tooltip The usual withdrawal processing time
    1-5 Days
    Online Slots
    Tooltip The total number of online slot games available
    2054
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    63
    Slot Providers
    Tooltip The number of different slot game software providers
    44
    BetMGM is the new UK online casino of one of the most recognisable casino resort brands in the world, which includes famous casinos such as The Bellagio, ARIA, The Cosmopolitan of Las Vegas and MGM Grand.
  6. Daily 10% Cashback of Losses for UK Customers
    'Marvellous Midweek' - Weekly Promotions
    Regular Casino Tournaments & Challenges
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    Tooltip The usual withdrawal processing time
    1-2 Days
    Online Slots
    Tooltip The total number of online slot games available
    1176
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    13
    Slot Providers
    Tooltip The number of different slot game software providers
    69
    All British Casino is an unashamedly red, white and blue online casino experience, including its Royal Air Force target logo along with other iconic British imagery.
  7. Wide Selection of Live Casino Games
    Regular Free Spins & Slots Tournaments
    Quick & Simple 2-Step Sign-Up Process
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    40x
    Payout Time
    Tooltip The usual withdrawal processing time
    1-2 Days
    Online Slots
    Tooltip The total number of online slot games available
    1263
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    100
    Slot Providers
    Tooltip The number of different slot game software providers
    20
    Magic Red Casino offers the standard mix of traditional casino games and slots, but it's their Live Casino that really shines through for us, with many different live dealer blackjack, baccarat and roulette variations, plus Texas Hold 'Em and Three Card Poker.
  8. Dual Casino & Sportsbook Platform
    Live Casino Fan Zone: Football Themed Games
    24/7 Live Chat Support
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    40x
    Payout Time
    Tooltip The usual withdrawal processing time
    3-5 Working Days
    Online Slots
    Tooltip The total number of online slot games available
    426
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    53
    Slot Providers
    Tooltip The number of different slot game software providers
    12
    talkSPORT BET online casino is the latest addition to the talkSPORT network which has been providing the latest sports news since 2000. They offer an exclusive 'Live Casino Fan Zone' with football themed roulette and blackjack games.
  9. Earn up to 200 Bonus Spins Daily
    Up to 20% Weekly Cashback Bonus
    Trade in VIP Points for Bonus Money
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    WINO100
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    40x
    Payout Time
    Tooltip The usual withdrawal processing time
    3-5 Days
    Online Slots
    Tooltip The total number of online slot games available
    840
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    16
    Slot Providers
    Tooltip The number of different slot game software providers
    9
    Winomania Casino is a 'boutique' online casino which boast a variety of unique games and jackpot slots. Players can get free spins by depositing daily too.
  10. Slots First Online Casino
    First, Second, Third & Fourth Deposit Bonuses
    Earn Bonus Cash on Loyalty Ladder
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    Tooltip The usual withdrawal processing time
    2-5 Days
    Online Slots
    Tooltip The total number of online slot games available
    1350
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    21
    Slot Providers
    Tooltip The number of different slot game software providers
    43
    Slots N'Play, as the name suggests, is primarily an online casino for slots players, including regular slots promotions, tournaments and prize pools.
  11. Part of the Prestigious Rank Group
    Spin & Win Loyalty Points
    Regular Seasonal Promotions & Bonuses
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    40x
    Payout Time
    Tooltip The usual withdrawal processing time
    3-5 Days
    Online Slots
    Tooltip The total number of online slot games available
    900
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    183
    Slot Providers
    Tooltip The number of different slot game software providers
    10
    Spin & Win Casino has a minimalistic and clean games lobby with an extensive range of slots games (including Megaways), plus traditional table games and a Live Casino.
  12. Up to £50 Daily Cashback
    Lucky VIP Loyalty Points
    Second & Third Deposit Incentives
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    40x
    Payout Time
    Tooltip The usual withdrawal processing time
    1-5 Days
    Online Slots
    Tooltip The total number of online slot games available
    1017
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    105
    Slot Providers
    Tooltip The number of different slot game software providers
    75
    LuckyVIP promotes itself as 'Your Cashback Casino' with 5% cashback on any losses up to £50 daily. They have also introduced 'Faster Withdrawals' with 80% of withdrawals back in your bank account within 10 minutes.
  13. Part of International Gaming Group Betway
    Variety of WowPot & Mega Moolah Jackpot Slots
    10 Spins Every Day on the Mega Money Wheel
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    50x
    Payout Time
    Tooltip The usual withdrawal processing time
    2-3 working days
    Online Slots
    Tooltip The total number of online slot games available
    439
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    52
    Slot Providers
    Tooltip The number of different slot game software providers
    38
    Jackpot City Casino is an UK casino established for over 25 years and owned and operated by the Betway Group. Notably, they reward online slots players with daily and weekly promotions, plus a loyalty programme.
  14. Regal Themed Casino Site
    Monthly Slots Tournaments & Daily Prize Drops
    'Wager Free Wednesday' Free Spins
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    Tooltip The usual withdrawal processing time
    1-4 Days
    Online Slots
    Tooltip The total number of online slot games available
    1035
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    47
    Slot Providers
    Tooltip The number of different slot game software providers
    42
    King Casino is one of various UK casino sites on the Aspire Global casino platform, which means regular slots promotions and the widest selection of live casino tables for all stake levels.
  15. No-Bonus, No-Nonsense Casino
    10% Cashback Every Day
    All Customers Treated as VIP's
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    0x
    Payout Time
    Tooltip The usual withdrawal processing time
    2-7 Days
    Online Slots
    Tooltip The total number of online slot games available
    1205
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    19
    Slot Providers
    Tooltip The number of different slot game software providers
    19
    No Bonus Casino offers a unique scheme whereby, in place of casino bonuses, they simply give all players 10% cashback on any losses the following day (with no wagering requirements).
  16. Weekly 10% Bonus on Casino Winnings
    10% Back of Weekly Losses (Bonus)
    Dual Casino & Sportsbook Platform
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    1x
    Payout Time
    Tooltip The usual withdrawal processing time
    2-5 Working Days
    Online Slots
    Tooltip The total number of online slot games available
    1943
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    256
    Slot Providers
    Tooltip The number of different slot game software providers
    28
    Quinnbet Casino boasts a selection daily and weekly casino promotions for existing customers to back up their philosophy of 'Giving More Back to our Customers Every Time'.
  17. Largest Retail Bingo Operator in the UK
    Daily Drop™ Must Go Jackpots
    Weekly Tournaments (Prize Multipliers)
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    20x
    Payout Time
    Tooltip The usual withdrawal processing time
    1-4 Days
    Online Slots
    Tooltip The total number of online slot games available
    820
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    135
    Slot Providers
    Tooltip The number of different slot game software providers
    12
    Buzz Bingo Casino is the online casino offering from the award-winning UK Bingo operator, which boasts a nationwide network of Bingo clubs.
  18. 10 Level Reward Programme
    Weekly Free Spins
    Weekly Cashback Available
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    50x
    Payout Time
    Tooltip The usual withdrawal processing time
    1 Business Day
    Online Slots
    Tooltip The total number of online slot games available
    376
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    100
    Slot Providers
    Tooltip The number of different slot game software providers
    65
    Red Axe Play Casino offers multiple bonus opportunities - you can even get a weekly points boost, which means that you'll be able to claim bigger and better rewards from the Rewards Store.
  19. 19
    Kwiff Casino
    Established 2015
    More Details
    Innovative Mobile First Casino & Sportsbook
    Multi-Game Casino Tournaments
    Supercharged Roulette (x2 or x5 Payouts)
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    1x
    Payout Time
    Tooltip The usual withdrawal processing time
    3-5 Days
    Online Slots
    Tooltip The total number of online slot games available
    487
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    4
    Slot Providers
    Tooltip The number of different slot game software providers
    6
    Kwiff started life as an 'industry disruptive' sports betting app, but has now expanded into casino and boasts a wide range of slots, scratchcards, table games and kwiff themed live roulette & blackjack tables.
  20. Weekly Slots Tournaments & Daily Prize Drops
    Collect Peachy Points to Claim Free Spins
    Live Chat Support (9am until midnight)
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    40x
    Payout Time
    Tooltip The usual withdrawal processing time
    1-3 Days
    Online Slots
    Tooltip The total number of online slot games available
    357
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    12
    Slot Providers
    Tooltip The number of different slot game software providers
    23
    Peachy Games is a slots first online casino with a broad range of Jackpot slot games, plus scratch cards, bingo games and a live casino to offer players a 'sweet time'.
  21. Unlimited 10% Cashback Scheme
    Monthly Live Casino & Slots Tournaments
    Weekly 'Fun Friday' Promotions
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    50x
    Payout Time
    Tooltip The usual withdrawal processing time
    3-5 Days
    Online Slots
    Tooltip The total number of online slot games available
    1253
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    14
    Slot Providers
    Tooltip The number of different slot game software providers
    68
    Fun Casino have introduced a permanent and unlimited cashback scheme where they will refund you 10% of lost deposits, with no wagering requirements or other bonus terms.
  22. Elegant Art Deco Inspired Theme
    Regular Cash Giveaway Draws
    Live Chat Support Available 24/7
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    Tooltip The usual withdrawal processing time
    2-7 Days
    Online Slots
    Tooltip The total number of online slot games available
    1794
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    52
    Slot Providers
    Tooltip The number of different slot game software providers
    117
    Grand Ivy Casino offers a sophisticated looking website which boasts a particularly impressive selection of slot games from a wide range of software providers.
  23. Fiery Devil Themed UK Casino
    Regular Casino Tournament Prizepools
    Over 100 Live Dealer Tables
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    Tooltip The usual withdrawal processing time
    2-5 Days
    Online Slots
    Tooltip The total number of online slot games available
    1775
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    9
    Slot Providers
    Tooltip The number of different slot game software providers
    31
    666 Casino offers to 'relight your fire' with their devilish casino site, one of many themed casinos on the Aspire Global International platform which has over 100 live dealer blackjack and roulette tables.
  24. 26
    Rainbow Riches Casino
    Established 2019
    More Details
    Popular Rainbow Riches Slot Game Series
    Regular Free Spins Promotions
    Stylish & Uncomplicated Games Lobby
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    1x
    Payout Time
    Tooltip The usual withdrawal processing time
    1-3 Days
    Online Slots
    Tooltip The total number of online slot games available
    120
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    8
    Slot Providers
    Tooltip The number of different slot game software providers
    7
    Rainbow Riches Casino is named after the popular Irish themed Rainbow Riches slot game from Barcrest. But you’ll also find many other online casino games, plus live casino and bingo.
  25. 27
    10bet Casino
    Established 2003
    More Details
    Regular Bonuses, Cashbacks & Free Spins
    'The Ten Club' - Concierge-Style VIP Scheme
    Visually Appealing Website & Games Lobby
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    CASINO10
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    40x
    Payout Time
    Tooltip The usual withdrawal processing time
    1-2 Days
    Online Slots
    Tooltip The total number of online slot games available
    1216
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    61
    Slot Providers
    Tooltip The number of different slot game software providers
    17
    10bet casino is a customer friendly operator that offers live chat, a speedy verification process and fast withdrawals to help justify their "For the Bettor" mantra.
  26. Casino of The Sun Newspaper
    Weekly Free Spins Happy Hours
    Complete Fun Tasks to Unlock Trophies
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    65x
    Payout Time
    Tooltip The usual withdrawal processing time
    2-5 Days
    Online Slots
    Tooltip The total number of online slot games available
    234
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    63
    Slot Providers
    Tooltip The number of different slot game software providers
    17
    The Sun Play Casino is another site operated by Jumpman Gaming Limited and is an offshoot of the popular tabloid newspaper. UK players can win prizes like Amazon and Just Eat vouchers.
  27. 29
    Fortune Games Casino
    Established 2023
    More Details
    Cash Drop - win Real Cash Prizes every day
    8 Unique Promotions Every Month
    Over 1000 Slots games and 8 Unique Bingo Rooms to choose from
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    65x
    Payout Time
    Tooltip The usual withdrawal processing time
    1-3 Working Days
    Online Slots
    Tooltip The total number of online slot games available
    234
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    63
    Slot Providers
    Tooltip The number of different slot game software providers
    17
  28. Up to 50 Daily Free Spins with 'Spin Frenzy'
    Slots Tournaments & Daily Prize Drops
    Extensive Range of Live Casino Games
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    Tooltip The usual withdrawal processing time
    0-5 working days
    Online Slots
    Tooltip The total number of online slot games available
    1600
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    48
    Slot Providers
    Tooltip The number of different slot game software providers
    21
    Red Casino is another online casino brand on the renowned Aspire Global International platform and offers UK players a wide selection of 'Jackpot King' progressive jackpot slots games in its impressive games lobby.
  29. Awarded 'Operator of the Year' 2020
    Brand Ambassador Paddy McGuinness
    'Joy Points' Reward Scheme
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    1x
    Payout Time
    Tooltip The usual withdrawal processing time
    24 Hours
    Online Slots
    Tooltip The total number of online slot games available
    1400
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    40
    Slot Providers
    Tooltip The number of different slot game software providers
    84
    Jackpotjoy is part of the Gamesys Group which has various gaming brands including Virgin Games and Rainbow Riches Casino. The Jackpotjoy TV ads featuring comedian Paddy McGuinness will be familiar to many.
  30. Long Established UK Sportsbook & Casino
    Brand Ambassadors Harry Redknapp & Rachael Blackmore
    Live Chat Support Available 24/7
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    40x
    Payout Time
    Tooltip The usual withdrawal processing time
    1-3 Days
    Online Slots
    Tooltip The total number of online slot games available
    1519
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    53
    Slot Providers
    Tooltip The number of different slot game software providers
    11
    BetVictor's online casino was launched back in 2000 and we particularly enjoy their exclusive Sports Roulette table with live sports streamed as you play.
  31. No Wagering Requirements, Ever!
    'Mobile Casino Product of the Year' 2023
    'Slots Operator of the Year' 2023
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    n/a
    Payout Time
    Tooltip The usual withdrawal processing time
    1-5 Days
    Online Slots
    Tooltip The total number of online slot games available
    1510
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    47
    Slot Providers
    Tooltip The number of different slot game software providers
    55
    PlayOJO market themselves as 'The Fair Casino' and their unique OJOplus feature gives you free money back on every bet you make, win or lose. They also offer players daily 'Kicker' promotions.
  32. Regular Cashback Bonuses & Prize Draws
    Loyalty Program with First 500 Points Free
    Live Chat Support Available 24/7
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    35x
    Payout Time
    Tooltip The usual withdrawal processing time
    1-2 Days
    Online Slots
    Tooltip The total number of online slot games available
    1386
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    70
    Slot Providers
    Tooltip The number of different slot game software providers
    103
    Casimba Casino has been a 'roaring' success since launching in 2017. The site is fully optimised for mobile and offers players a slick and smooth user experience, plus plenty of promotions.
  33. Modern Casino Slots Site
    Daily Free Spins for all Players
    Up to 2.5% Monthly Cashback
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    SPIN125
    Bonus Wagering
    Tooltip The number of times you have to play through your bonus before you are able to withdraw any winnings
    60x
    Payout Time
    Tooltip The usual withdrawal processing time
    2-5 business days
    Online Slots
    Tooltip The total number of online slot games available
    1074
    Jackpot Slots
    Tooltip The number of jackpot slot games available
    2
    Slot Providers
    Tooltip The number of different slot game software providers
    7
    Amber Spins Casino, as the name suggests, is a slots site with a broad selection of ‘jingling jackpots’ and a rewards programme where you earn points as you play to boost your level.
  34. 'Online Casino of the Year' 2018-2023
    'Mobile Operator of the Year' 2023
    Exclusive 'LeoJackpot' Online Slot Games
    Bonus Code
    Tooltip The code required to claim this sign-up bonus (if any)
    not required
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Our Picks for the Best Online Slot Sites March 2024

While there are hundreds of online slot sites to choose from in the UK, our experts led by Ana Dimitrijevic have handpicked what they consider the best based upon certain criteria:

"My background in software development for online slots has provided me with unique insights into what makes these games both engaging and entertaining. As an avid slots’ player myself, I can also evaluate and appreciate slot games from the player’s perspective, enabling me to truly understand what captivates fellow slots enthusiasts."

Best Slot Sites for Progressive Jackpots

When it comes to life-changing jackpots, three online slot sites stand out with their extensive offerings of progressive jackpot pool games.

Mr Vegas Online Slots

Mr Vegas offers a huge selection of jackpot slots, with WowPot games like the atmospheric Wheel of Wishes, plus various Mega Moolah jackpot slots, including the original Mega Moolah itself. Additionally they feature a large number of Dream Drop progressive slots, with Temple Tumble 2 our favourites.

Key Features: Three exclusive ‘Wheel of Vegas’ jackpots for slot players and ‘Rainbow Fridays’ weekly cash rewards based on your previous week’s online slots play.

Unibet Online Slots

Unibet has an impressive array of over 100 progressive jackpot slot titles. This includes various popular WowPot slots like Sisters of Oz and Mega Moolah games such as Atlantean Treasures. They also offer an impressive variety of Dream Drop progressive jackpot slots, such as the wild-west themed Money Train Origins.

Key Features: An incredibly user-friendly games lobby, plus weekly £10k ‘Lucky Spin Riders’ tournaments on selected slot games.

BetMGM Online Slots

At BetMGM, you’ll not only find WowPot, Mega Moolah and Dream Drop jackpot slots, but also a selection of Jackpot King progressive jackpot games, such as Funky Pharaoh. They also offer exclusive opt-in MGM Millions games including slots favourites such as Starburst and Book of Dead, with a ‘mega’ progressive jackpot currently standing at over £17 million.

Key Features: Their exclusive MGM Millions games series allows you to play for jackpots on some classic slots which don’t offer progressive jackpots elsewhere. 

Best Slot Sites for Megaways

Megaways is now such a popular online slots format, that we have researched slot sites that offer the biggest variety of Megaways games.

Here are the Gambling.com top three picks for the best Megaways slot sites in the UK.

PartyCasino Online Slots

With almost 150 Megaways slots, you are spoilt for choice at PartyCasino, including long-time favourites such The Dog House Megaways and Madame Destiny Megaways, which are also part of Pragmatic Play’s ‘Drops & Wins’ promotion, with random prize drops every day.

Key Features: Slots players can spin the ‘Party Prizes MEGA Wheel’ to win guaranteed daily rewards, plus regular opt-in slots tournaments and prizes.

Regal Wins Online Slots

Regal Wins is another online slot site to offer UK players around 150 Megaways slots, with classics such as Bonanza Megaways and progressive jackpot Megaways slots, such as Diamond Mine Megaways Jackpot King and Wolf Blaze WowPot Megaways.

Key Features: Daily, weekly and monthly slots promotions, plus earn loyalty points every time you play slot games, which you can redeem for cash bonuses.

Mr Vegas Online Slots

Once again, Mr Vegas excels when it comes to their sheer number of online slots, boasting over 200 Megaways titles such as Temple Tumble Megaways and Piggy Riches Megaways, plus jackpot Megaways games like Cash ‘N Riches Wowpot Megaways.

Key Features: The widest range of Megaways slots available in one place in the UK, plus regular slots promotions and a fair sign up bonus that gets paid out in 10% increments as you spin the reels.

Best Slot Sites for Promotions & Free Spins

Many UK slot sites offer customers regular online slots promotions and bonus spins to extend your gameplay or reward loyalty. 

Here we detail what the slot experts at Gambling.com consider to be the best online slot UK promotions for March 2024:

Leo Vegas Online Slots

At Leo Vegas, UK players can get up to 50 free spins on Big Bass Splash (25 spins for your first and second deposits) with no wagering requirements. They also offer regular free spins promotions and competitions for online slots players. 

Key Features: There is a ‘Weekly Free Spins’ promo at Leo Vegas, with 30 x 10p free spins on Big Bass Bonanza every Thursday, plus another every Monday-Wednesday, with 10 x 20p free spins offered on Book of Dead.

MrQ Online Slots

Awarded ‘Slot Operator of the Year' in 2021, Mr Q offers slot players 75 free spins on Big Bass Splash, with no wagering requirements, when using our exclusive promo code: SPLASH75. Meanwhile, players of their Pragmatic Play slots such as Sweet Bonanza qualify for the popular ‘Drops & Wins’ promo, with its random daily prize drops.

Key Features: As official sponsors of Watford FC, Mr Q also offers all players 5 free spins on the Wild Swarm slot game every time ‘The Hornets’ win in the 2023/24 season. There is also a ‘Daily Roulette Drop’ promotion which offers free spin prizes to players who have deposited £10 the previous week.

All British Casino Online Slots

Although All British Casino don't offer free spins for signing up, there is a 100% first deposit bonus of up to £100 free and UK slots players also benefit from 10% cashback on lost deposits, paid in real cash with no restrictions.

Key Features: Weekly ‘Marvellous Midweek’ offers, such as bonus spins when reloading, plus they regularly email customers with invites to slots tournaments and challenges with cash prizes.

Types of Online Slots

The earliest online slots in the UK were quite straightforward, typically featuring five reels with three rows. The very first online video slot to include a bonus round, known as 'Reel ‘em In’, was introduced in 1996.

Fast forward almost two decades, and today's players are presented with an entirely new generation of casino slots, offering various formats and enticing features.

Fruit Machine Slots

Unsurprisingly, these slots draw inspiration from traditional pub fruit machines. They typically feature a retro style and are composed of either three or five reels, with basic graphics and sounds.

Reel King is a prime example of a fruit machine slot that has made a successful transition from a pub kiosk to online slot sites, including at the aptly named Pub Casino.

Classic Slots

NetEnt’s Gonzo’s Quest and Starburst are considered modern day classics, while purists would tend to classify true classic slots to be games such as Barcrest’s Action Bank or IGT’s Da Vinci Diamonds.

Megaways Online Slots

With an impressive 117,649 ways to win, it’s easy to see the appeal of the innovative Megaways game mechanic, especially when the cost per spin can be as low as 20p. 

Games like Who Wants to Be a Millionaire Megaways (Big Time Gaming), Wild Celebrity Bus Megaways (Pragmatic Play) and Fishin’ Frenzy Megaways (Blueprint) demonstrate how this exciting game mechanic can be integrated into different online slots.

Must Drop, Daily Drop and Mega Drop Jackpot Slots 

Must Drop Jackpot slots feature a jackpot prize that must be won before it hits £1,000, while Daily Drop Jackpots are guaranteed to drop before 22:00 GMT each day.

Meanwhile, Mega Drop Jackpot Slots are progressive jackpots which will drop before they reach a maximum payout value, rather than grow indefinitely. The ‘Epic’ Mega Drop Jackpot maximum amount is £15,000.

Slingo

Slingo, a blend of 'Slots' and 'Bingo,' provides a distinctive gaming experience where players complete a bingo-style grid with numbers spun on a slot reel.

The goal is to match numbers to complete winning lines ('slingos') and advance up the prize ladder toward a full-house and the top prize.

"Slingo has gained significant popularity, leading to the creation of franchised versions like Tetris Slingo, Starburst Slingo and my personal favourite, Britain's Got Talent Slingo."
Content Breaker Quote Author ImageAna Dimitrijevic | Slots Expert Gambling.com

High Volatility Slots

Nowadays, game developers are eager to create highly volatile slots, providing players with the opportunity for larger but less frequent wins

Hacksaw Gaming, in particular, are renowned for their extremely volatile online slots, with titles like Wanted Dead or A WildCubesItero and Chaos Crew. In these games, it truly is an all-or-nothing experience, emphasising a high-risk, high-reward style of gameplay.

Maximum Win Slots

Many seasoned slot players, have yet to hit ‘max win’ on one of the highest paying slots.

NetEnt were the first to break the 100k barrier with Dead or Alive 2, offering a maximum pay-out of 111,111x your stake, later surpassing it with the release of Starburst XXXtreme at 200,000x. 

However, Nolimit City's Tombstone RIP now tops the charts, with an unprecedented 300,000x payout, achieved soon after the game’s release in January 2022. 

Such wins are among the reasons why Nolimit City slots have secured a place in the favourite slots lists of many players.

Progressive Jackpot Slots

The dream of landing a life-changing fortune is on offer with progressive jackpot slots, with each bet contributing a small portion to a continually growing jackpot.

These progressive online slot pools keep on increasing until one player strikes it rich.

The biggest are the WowPot and Mega Moolah series of jackpot slots, but below our team of experts have listed all of the big online slots jackpots currently up for grabs, along with the best UK slot sites where you can try your luck for each.

Online Slot Progressive Jackpot Amounts (March 2024)

Jackpot SeriesCurrent JackpotWhere to Play (UK)
WowPot£8.5 millionBetway
Mega Moolah£4.1 millionMr Vegas
Dream Drop£2.1 millionUnibet
Jackpot King£2.1 millionJackpot Village
Mega Jackpots£622,030Grosvenor


Microgaming launched the original safari-themed Mega Moolah progressive jackpot slot back in 2006 to much acclaim. 

Since then, the Mega Moolah series has been expanded to include a variety of titles, such as Fortunium Gold, Mega Moolah Goddess and Absolootly Mad - the latter of which holds the record for the largest Mega Moolah jackpot ever won (£16.9 million in April 2021).

That monster win came just two weeks after a WowPot jackpot of £15.2 million, won by a UK 32Red player on the Book of Atem slot.

But a world-record slots jackpot of £33 million was won in December 2023 on the appropriately named WowPot slot game Wheel of Wishes.

Whilst the aforementioned slots all contribute into shared jackpot pools, the following four slots are stand-alone games, each boasting its own progressive jackpot:

Jackpot GamesCurrent JackpotWhere to Play (UK)
Jackpot Giant£6.3 millionPartyCasino
Leprechaun's Luck£2.6 millionBet365
Beach Life£2.4 millionBet365
Mega Fortune£1.6 millionNetBet

 

Online Slot Themes

There’s an endless variety of online slot game themes to choose from, catering to all preferences. Below we've categorised the most popular themes and shared our personal favourites from each.

Animal Slots 

The world of animal-themed online slots can transport you to the North American plains, Amazonian jungles, the depths of the ocean, or simply feature your favourite pets.

Our Top Picks:

Both of these animal slots are available to play in the UK at: Betway BetMGM

Movie Slots

Blueprint Gaming and Microgaming lead the way for movie slots and this category could easily include another six or so exceptional games, but we've tasked Ana Dimitrijevic and the team with whittling it down to the Gambling.com top three.

Our Top Picks:
 

All three of these movie slots are available to play in the UK at: Betway & PartyCasino

TV Slots

There are also numerous excellent slots based on popular TV shows, which offer fans an interactive way to immerse themselves in their favourite characters and themes.

Our Top Picks:

Each of these TV series-inspired slots can be enjoyed in the UK at: Pub CasinoFun Casino

Lucky Irish Slots

There’s zero chance we could leave Lucky Irish themed slots off this list. Such is its popularity, for some players there simply are no other types of online slots. 

Our Top Picks:

You can chance your luck on either of these Irish-themed slots in the UK at: PartyCasino Mr Vegas

Mythology Slots

There are probably more online slots based around mythology than any other genre - players will never tire of these mythological slots and game providers regularly release new versions.

Our Top Picks:

Both of Ana Dimitrijevic's expert recommended mythological slots are available to play in the UK at: Betway PartyCasino

Ancient Egypt Slots

New releases of Ancient Egyptian themed slots often share common characteristics, including expanding reels, the potential to retrigger bonuses and opportunities to gamble each win.

Our Top Picks:

You can play all three of these highly recommended Ancient Egyptian slots in the UK at: KwiffBetItOn 

Fruit Slots

The traditional ‘fruit machines’, named for their reel symbols of grapes, plums, oranges, lemons, bananas, melons and cherries, have long been a staple in local pubs. Thus, it's no surprise that online slot developers sought to capture the essence of the pub ‘fruity’.

Our Top Picks:

All three of these must try fruit slots are available to play in the UK at: Pub Casino & All British Casino

Pirate Slots

Although not at the top of our favourite themes for the slots team at Gambling.com, there are a few excellently executed pirate themed slots bobbing around the lobby of many online slot sites in the UK.

Our Top Picks:

Both of these pirate slots can be played in the UK at: Mr Vegas & PartyCasino

Other Top Online Slots

Whilst those are the most common themes for online slots, UK players have endless options - from Dinosaurs to Dragons, Sci-Fi to Sweets or Vampires to Vikings. No matter your preference, there is almost certainly an online slot themed around it. 

A few others that rank among the all-time favourite online slots are:

All of these top online slots can be played in the UK at: Mr Vegas & MrQ

Online Slot Mechanics & Features

Whilst the basic concept of most online slots is the same, many offer a unique mix of game mechanics and features that impact gameplay and potential winnings.

Here our slots experts summarise of the main characteristics of online slots: 

Base Game

When you fire up any online slot, the first thing you’re presented with is the base game which offers the standard reel configuration and symbols for that particular slot. 

A quick dip into the information section and you’ll find the paytable which displays the value of each reel symbol and the payouts for winning combinations. The base game is usually straightforward and you just need to choose your bet size and start spinning. 

The bet size, also known as the spin value, allows you to customise your play and tailor wagers to suit your budget. The way it is calculated can vary for different slot games, but typically includes the following elements:

Most online slots require a minimum of three matching symbols to create a win, although some slots pay for matching just two of the highest-value symbols. 

Traditionally, winning combinations are formed by matching symbols on adjacent reels, with the default being left to right although innovation has brought us a number of interesting payout structures, including:

Slots UK

Bonus Rounds

While the base game creates more frequent and occasional big payouts, it’s the bonus round that unlocks the premium symbols with the largest multipliers for the biggest wins. 

The bonus round is usually triggered when three or more Scatter symbols are landed, which then awards free spins along with enhanced features and multipliers, such as:

Online Slots Software

Top-tier software providers have had to up their game in recent years, facing ever-increasing competition from smaller studios eager to push the boundaries of innovation. 

This has led to an evolution in the online slot experience for UK players, who have access to an unprecedented selection of online slot software, each aiming to deliver a distinct and memorable gaming experience. 

Below we have listed the current top online slot game software providers, if you want to dig even deeper check out the Gambling.com guide for leading gaming software providers in the UK:

Highest RTP Slots 2024

Here are the top 15 best paying slot games in the UK ranked by their advertised RTP (Return to Player) percentage.

Most online slots in the UK typically have RTPs ranging from 92% to 96%, but all of these best paying slots feature an RTP of 97% or higher:


The RTP percentage is a factor to consider when selecting which online slots to play. This provides an estimate of the expected returns over an extended period of time.

Theoretically, for every £1 staked on an online slot game with a 98% RTP, 98p is returned.

The RTP % of a slot machine is not guaranteed, it's a calculated long-term average of the amount paid out divided by the amount staked on that game. It does not indicate the outcome of any individual game session.

But by choosing the best paying online slots with higher RTPs, you are likely to get more value for your money over the long run and maximise your bankroll.

However, some players prefer online slots with lower RTPs and higher 'max wins' or the allure of massive progressive jackpots.

For example, despite Mega Moolah's RTP of 88.12%, it has awarded several huge jackpots to UK players, like the £13.2 million won by Jonathan Heywood at Betway in 2015.

Online Slots Tournaments UK (March 2024)

Slots tournaments add a competitive edge to spinning the reels, with additional rewards above and beyond regular slots gameplay.

In these scheduled tournaments, players compete against each other to win cash prizes or other rewards.

While each slots tournament has its own rules, the goal is always to accumulate points to rise up the leaderboard.

Here we list the tournaments currently available at UK slot sites:

Slots TournamentPrize PoolWhere to Play (UK)
Drops & Wins (Weekly)£255,000MagicRed
Drops & Wins (Daily)£35,000MrQ
Red Tiger (Weekly)£5,000Grosvenor
High Volatility (Monthly)£1,750Pub Casino


The most popular online slots tournaments in the UK are Drops & Wins, available exclusively on Pragmatic Play slots games.

With a monthly prize pool of £2 million, this promotion offers prize-paying positions on weekly tournament leaderboards, plus random daily prize drops:

£255,000 for weekly leaderboards x 4 weeks = £1,020,000

£35,000 in daily prize drops x 7 days a week x 4 weeks = £980,000

Our team especially like the random daily prize drops which give everyone who plays a chance to win, not just those who make it onto the weekly leaderboard.

Most Popular Real Money Online Slots in the UK

Of course, determining the best slot games is subjective, but below you’ll find the top 20 slots in the UK based exclusively on player data that we have sourced from UK slot sites for the last month:

Top 20 Slots UK

Software Provider
RTP
96.71%
Volatility
High
Maximum win
£525,000
#ad. 18+. Gamble Responsibly. Begambleaware.org. #AD New customers only, min deposit £10, wagering 40x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Full T&C’s apply. +18, Please Gamble responsible. BeGambleAware.org
Software Provider
RTP
96.09%
Volatility
Low
Maximum win
£50,000
#ad. 18+. Gamble Responsibly. Begambleaware.org. The Welcome Bonus is only available to newly registered players who make a minimum initial deposit of £10. The welcome offer can be activated only once, when making your first deposit. In order to receive the maximum of £ 200 bonus, you will need to wager an amount equal to 35 times the value of your first initial deposit within 60 calendar days from the date on which the Welcome Bonus option has been activated under the 'My Bonuses' section of your account.. Full Terms Apply. Gamble responsibly.www.begambleaware.org
Software Provider
RTP
96.48%
Volatility
Medium
Maximum win
£2,110,000
#ad. 18+. Gamble Responsibly. Begambleaware.org. #AD New customers only, min deposit £10, wagering 40x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Full T&C’s apply. +18, Please Gamble responsible. BeGambleAware.org
Software Provider
RTP
96.71%
Volatility
High
Maximum win
£1,250,000
#ad. 18+. Gamble Responsibly. Begambleaware.org. #AD New customers only, min deposit £10, wagering 40x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Full T&C’s apply. +18, Please Gamble responsible. BeGambleAware.org