Best Slot Sites UK ?? Top Casinos and Games for 2024

Author: Rob McLauchlan | Fact checker: Luciano Passavanti · Updated: · Ad Disclosure
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BonusFinder is an independent online casino comparison website with affiliate links. This means that we may receive compensation if you take up an offer on our list. Our team is dedicated to finding the best bonuses and casinos for you to play safely, and we scrutinise and review every bonus before adding them to our website.

Check out the best UK slot sites and their welcome bonuses below!

Free Spins Offers
No Deposit Free Spins
No Wagering Free Spins
New Casinos
Exclusive Offers
  • Mr Vegas Casino Free Spins Of the Month
    11 Bonus Spins
    For Pink Elephants 2, with no wagering
    £10 Deposit + £10 Bonus
    Equals 200 spins of £0.10
    The 11 welcome spins are wager free so you can keep what you win!
    Bonus Spins 11 Deposit Spins 200 Claim 211 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Min deposit £10. Account balance is withdrawable at any time upon withdrawal, any remaining bonus spins forfeited: 7 days to activate the spins: Bonus spins expire 24 hours after activation. The deposit bonus will be paid out in 10% increments to your Main Account balance, and must be wagered 35x within 60 days from activation.
  • 5.0/5
    21 Casino
    21 Free Spins No-Deposit
    For Book of Dead
    No-Deposit Spins 21 Claim 21 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply New players only. 21 No-Deposit Spins on Book of Dead. Min deposit £10. Bonus funds are 121% up to £100. Bonus funds + spin winnings are separate to cash funds and subject to 35x wagering requirement. Only bonus funds count towards wagering contribution. £5 bonus max bet. Bonus funds must be used within 30 days, spins within 10 days. Affordability checks apply. Terms Apply
  • 5.0/5
    Neptune Play Casino
    25 Bonus Spins
    For Book of Dead, with no wagering
    £10 Deposit + £10 Bonus
    Equals 200 spins of £0.10
    Bonus Spins 25 Deposit Spins 200 Claim 225 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. New depositing players only. Min. deposit: £10. Max. bonus: £200 + 25 Bonus Spins on Book of Dead. Offer valid on the first deposit. No wagering is required on Bonus Spins. Wagering Required on Bonus Cash: 40x. The match-up bonus that requires a deposit must be wagered 40x. In order to withdraw your winnings, you must first use up all of your bonus spins or wait for them to expire (whichever comes first). Bonus Policy and Terms of Service apply.
  • MagicRed Casino
    20 Bonus Spins
    For Big Bass Bonanza, no wagering on winnings
    £20 Deposit + £20 Bonus
    Equals 400 spins of £0.10
    Bonus Spins 20 Deposit Spins 400 Claim 420 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. New depositing players only. Min. deposit: £20. Max. bonus: £100 + 20 Bonus Spins on Big Bass Bonanza. Offer valid on the first deposit. Winnings won with bonus spins that require a deposit have no wagering requirements. The match-up bonus that requires a deposit must be wagered 40x. Magic Red Welcome Bonus – 100% bonus on your first deposit up to £100. This bonus only applies for deposits of £20 or higher. Bonus Policy and Terms of Service apply.
  • Fun Casino
    200 Bonus Spins
    For Hot Fruits 27
    £10 Deposit + £10 Bonus
    Equals 200 spins of £0.10
    Bonus Spins 200 Deposit Spins 200 Claim 400 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Maximum bonus is £123, Max bet with bonus is £5, No max cash out, Wagering is 50x – Skrill & Neteller excluded, Eligibility is restricted for suspected abuse. Minimum deposit £10. Full T&C’s apply.
  • Winomania Casino Exclusive Bonus
    100 Bonus Spins
    For Big Bass Splash
    £10 Deposit + £10 Bonus
    Equals 200 spins of £0.10
    Use bonus code WIN100
    Bonus Spins 100 Deposit Spins 200 Claim 300 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply User Agreement & Bonus T&Cs apply 1st deposit only | min deposit £10 | max bet £2 | max bonus £100 | max cashout x3 the bonus | max cashout from spin winnings £100 | x40 wagering on bonus and bonus spin winnings | 30-day bonus expiry | 24-hour bonus spins expiry | bonus is valid for selected games only
  • All British Casino
    10 Free Spins No-Deposit
    For Book of Dead
    + Always 10% cashback
    No-Deposit Spins 10 Claim 10 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 10 extra spins on registration (max withdrawal is £100). 100 extra spins after first deposit. Min deposit is £20. Maximum bonus is 100% up to £100. Wagering is 35x. No max cash out. Cashback is cash with no restriction. Bonus excluded for players depositing with Skrill or Neteller. #AD
  • Betway Casino
    125 Bonus Spins
    For Big Bass Hold & Spinner
    £10 Deposit
    Equals 100 spins of £0.10
    Stake £10 & Get 125 Extra Spins with No Wagering!
    Bonus Spins 125 Deposit Spins 100 Claim 225 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. New UK customers only. 125 extra spins on Hold & Spinner (£0.10 per spin) credited after successful £10 deposit and £10 stake on Casino, Vegas or Live Casino. No wagering requirements on extra spin winnings. Debit Card deposit only (exclusions apply). This offer is valid 7 days from the new account being registered. 18+ BeGambleAware.org. Bet the Responsible Way Full Terms Apply
  • 5.0/5
    Mega Riches Casino
    50 Bonus Spins
    For Ancient Fortunes Poseidon Megaways
    £10 Deposit + £10 Bonus
    Equals 200 spins of £0.10
    Bonus Spins 50 Deposit Spins 200 Claim 250 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. #ad. 18+. Gamble Responsibly. Gambleaware.org. The Welcome Bonus is only available to newly registered players who make a minimum initial deposit of £ 10. You must make a deposit of £ 10 to be eligible for 50 Welcome Spins. Your 50 Welcome Spins must be activated in your account within seven (7) days and used within 24 hours of activation.In order to receive the maximum of £ 100 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 T&Cs Apply.
  • 5.0/5
    Gentleman Jim Casino
    200 Bonus Spins
    For Starburst
    £50 Deposit
    Equals 500 spins of £0.10
    Use bonus code freespins200
    Bonus Spins 200 Deposit Spins 500 Claim 700 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. This promotion is for new customers only. Customers must be 18+. Customers must be residents of the UK. Sign Up using the promo code freespins200 and make a minimum deposit of £50. Wager a minimum £50 on slots and receive 200 extra spins on Starburst. The extra spins will be added by 23:59 the day after qualification. The extra spins are only available on Starburst.
  • 5.0/5
    O'Reels Casino
    50 Bonus Spins
    For Big Bass Bonanza
    £20 Deposit + £20 Bonus
    Equals 400 spins of £0.10
    Bonus Spins 50 Deposit Spins 400 Claim 450 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. New players making their first two deposits only. Min deposit £20. First deposit: 100% bonus match, max £25 bonus. Bonus can be used on slot games only. Second deposit: Max 50 bonus spins on Big Bass Bonanza. Both 35x wagering. Max £100 conversion. 18+. Full T&C's apply.
  • PlayFrank Casino Exclusive Bonus
    50 Bonus Spins
    For Starburst
    £20 Deposit + £20 Bonus
    Equals 400 spins of £0.10
    Bonus Spins 50 Deposit Spins 400 Claim 450 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply 18+. New Players Only. Minimum Deposit £20. Bonuses to a max of £100 + 50 Bonus Spins. Wagering bonus 35x. Wagering bonus spins 35x. The winning must be wagered within 21 days. Bonus T&C apply.
  • 5.0/5
    PlayGrand Casino
    30 Free Spins No-Deposit
    For Book of Dead
    No-Deposit Spins 30 Claim 30 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 30 Non-Deposit Spins on Book of Dead. Min deposit £10. 100% up to £100 + 30 Bonus Spins on Reactoonz. Bonus funds + spin winnings are separate to cash funds and subject to 35x wagering requirement. Only bonus funds count towards wagering contribution. £5 bonus max bet. Winnings from No-Deposit Spins capped at £100. Bonus funds must be used within 30 days, spins within 10 days
  • Regal Wins Casino
    50 Bonus Spins
    For Starburst, no wagering on winnings
    £20 Deposit + £20 Bonus
    Equals 400 spins of £0.10
    Use bonus code REGAL
    Bonus Spins 50 Deposit Spins 400 Claim 450 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply 1st dep. of £20-£300, max bonus £300 on selected slots; 50x wagering on the sum of deposit & bonus applies. Max convertible 5x bonus amount received. Extra Spins: Use code: REGAL when depositing in the cashier. 5 Batches of 10 FS Daily. Winnings capped at £10 per batch. T&C's Apply.
  • 4.1/5
    Jackpot Village Casino
    200 Bonus Spins
    For Book of Dead
    £20 Deposit
    Equals 200 spins of £0.10
    Bonus Spins 200 Deposit Spins 200 Claim 400 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 18+. New players only. Min. dep £20. Max. bonus bet £5. 200 Bonus Spins on Book Of Dead on your 1st deposit. Winnings from all spins credited as bonus funds and capped at £20. Bonus funds are separate to Cash funds & subject to wagering requirement (40x deposit plus bonus). Only bonus funds contribute towards wagering requirement. Bonus funds must be used within 30 days, spins within 72hrs. Affordability checks & Terms apply. BeGambleAware.org.
  • 4.7/5
    Hotwins Casino
    25 Bonus Spins
    For Big Bass Bonanza
    £10 Deposit + £10 Bonus
    Equals 200 spins of £0.10
    Bonus Spins 25 Deposit Spins 200 Claim 225 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 18+ only | General T&Cs apply | Please play responsibly | https://www.begambleaware.org. New players only. Wagering occurs from real balance first. 50x wagering the bonus or any winnings generated from extra spins, contribution may vary per game. Available on selected games only. The wagering requirement is calculated on bonus bets only. Bonus is valid for 30 Days/ extra spins valid for 7 days from issue. Max conversion: 3 times the bonus amount or from extra spins: £20. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits. Full Terms Apply.
  • BetMGM UK Casino
    100 Bonus Spins
    For Big Bass Splash, no wagering on winnings
    £10 Deposit
    Equals 100 spins of £0.10
    No BetMGM Bonus Code Required
    Bonus Spins 100 Deposit Spins 100 Claim 200 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Opt in & deposit £10 in 7 days & wager 1x in 7 days on any casino game (excluding live casino & table games) for 100 Extra Spins. Wagering contributions vary. Extra Spins worth 10p each on Big Bass Splash. 3 day expiry. There is no wagering requirement attached to any winnings from the Extra Spins, and winnings will be instantly credited to your Account. Winnings can be withdrawn. T&Cs apply.. New customers only.
  • 4.1/5
    Barz Casino Exclusive Bonus
    50 Bonus Spins
    For Starburst
    £20 Deposit + £20 Bonus
    Equals 400 spins of £0.10
    Bonus Spins 50 Deposit Spins 400 Claim 450 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 18+. New Players Only. Min. deposit £20. Max. bonus bet is £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 £20. Bonus funds expire in 30 days, unused bonus funds will be removed. Welcome Offer is 100% match up to £300 plus 50 bonus spins on your 1st deposit. Bonus funds are separate to Cash funds, and are subject to 40x wagering the total bonus & cash. Only bonus funds count towards wagering contribution. Terms apply. BeGambleAware.org.
  • 3.6/5
    Red Casino
    50 Bonus Spins
    £20 Deposit + £20 Bonus
    Equals 400 spins of £0.10
    Bonus Spins 50 Deposit Spins 400 Claim 450 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Min deposit £20. Max Bonus 100% up to £25 on 1st deposit. 50 spins on specific game only on 2nd deposit. 35x wagering applies, within 21 days. Max wins from spins £100. Spins expire after 24h. Full T&Cs apply
  • 4.1/5
    FruitKings Casino
    20 Bonus Spins
    For Big Bass Splash, with no wagering
    £10 Deposit
    Equals 100 spins of £0.10
    Bonus Spins 20 Deposit Spins 100 Claim 120 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply 18+. Only available to new players. Minimum £10 first deposit required. 20 Bonus Spins on Big Bass Splash. No Wagering Requirements. Winnings credited directly to cash balance. Neteller and Skrill deposits excluded. Expiry: bonus spins expire 2 days after deposit. Further terms apply: Full Terms of Welcome Offer General bonus terms; and General terms and conditions.
  • 4.5/5
    Casimba Casino Exclusive Bonus
    50 Bonus Spins
    For Book of Dead
    £20 Deposit + £20 Bonus
    Equals 400 spins of £0.10
    Bonus Spins 50 Deposit Spins 400 Claim 450 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 18+. New players only. Min. deposit £20. Max. bonus bet is £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 in 30 days, unused bonus funds will be removed. Welcome Offer is 100% match up to £200 plus 50 bonus spins on your 1st deposit, 50% match up to £50 on your 2nd 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. BeGambleAware.org.
  • 4.0/5
    Cosmic Spins Casino Exclusive Bonus
    100 Bonus Spins
    For Starburst
    £10 Deposit + £10 Bonus
    Equals 200 spins of £0.10
    Bonus Spins 100 Deposit Spins 200 Claim 300 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply First deposit only. Min deposit £10. 100% Bonus Match on 1st deposit, max £100 bonus & 100 bonus spins on Starburst. 40x wagering(dep+bonus). 40x on spins, 4x conversion, bonus valid on selected slots. Full T&Cs apply.Terms & Conditions
  • 4.2/5
    Dream Vegas Casino
    150 Bonus Spins
    For Starburst or Aloha
    £20 Deposit + £20 Bonus
    Equals 400 spins of £0.10
    Bonus Spins 150 Deposit Spins 400 Claim 550 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 18+. New players only. One offer per player. Max bonus bet £5. Offer: 100% bonus match on 1st deposit + bonus spins. Value of bonus & number of spins depend on deposit amount: £20-£100: max £100 bonus + 50 spins on selected games; £101-£200: max £200 bonus + 100 spins on selected games; or £200+: max £300 bonus + 150 spins on eligible NetEnt Games. Winnings from spins credited as bonus and capped at £100. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds contribute to wagering requirement. Bonus funds expire within 30 days; bonus spins within 72hrs. Affordability checks apply. Terms apply. BeGambleAware.org.
  • 4.1/5
    Videoslots Casino
    11 Bonus Spins
    For Starburst, wager-free
    £10 Deposit + £10 Bonus
    Equals 200 spins of £0.10
    Bonus Spins 11 Deposit Spins 200 Claim 211 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Min deposit £10. Account balance is withdrawable at any time upon withdrawal, any remaining bonus spins forfeited: 7 days to activate the spins: Bonus spins expire 24 hours after activation. The deposit bonus will be paid out in 10% increments to your Main Account balance, and must be wagered 35x within 60 days from activation.
  • 4.2/5
    Jackpot Mobile Casino
    100 Bonus Spins
    For Starburst, Aloha! Cluster Pays, Finn and the Swirly Spin
    £10 Deposit + £10 Bonus
    Equals 200 spins of £0.10
    Bonus Spins 100 Deposit Spins 200 Claim 300 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply #AD First 3 deposits only. Min deposit £10. Max total bonus £500 and 150 spins. 30x wagering (dep + bonus). 30x on spins, 4x conversion, bonus and spins valid on selected slots. Full T&Cs apply
  • 4.0/5
    Peachy Games Casino
    20 Bonus Spins
    For Big Bass Splash, with no wagering
    £10 Deposit
    Equals 100 spins of £0.10
    Bonus Spins 20 Deposit Spins 100 Claim 120 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply 18+. Only available to new players. Minimum £10 first deposit required. 20 Bonus Spins on Big Bass Splash. No Wagering Requirements. Winnings credited directly to cash balance. Neteller and Skrill deposits excluded. Expiry: bonus spins expire 2 days after deposit. Further terms apply.
  • 4.7/5
    Grand Ivy Casino Exclusive Bonus
    25 Bonus Spins
    For Starburst
    £20 Deposit + £20 Bonus
    Equals 400 spins of £0.10
    Bonus Spins 25 Deposit Spins 400 Claim 425 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 18+. New players only. Min. deposit £20. Max. bonus bet is £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 in 30 days, unused bonus funds will be removed. Welcome Offer is 100% 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. BeGambleAware.org.
  • 3.5/5
    Kong Casino Exclusive Bonus
    50 Bonus Spins
    For Big Bass Bonanza
    £10 Deposit + £10 Bonus
    Equals 200 spins of £0.10
    Bonus Spins 50 Deposit Spins 200 Claim 250 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. New players only, £10 min fund, £200 max matchup bonus, extra spin wins credited as bonus, 65x wagering requirements, max bonus conversion to real funds equal to lifetime deposits (up to £250), full T&Cs apply.
  • 4.0/5
    Buzz Casino Exclusive Bonus
    200 Bonus Spins
    For Fire Blaze, Blue Wizard, Megaways
    £10 Deposit
    Equals 100 spins of £0.10
    Low wagering of only 20x
    Bonus Spins 200 Deposit Spins 100 Claim 300 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 1st Deposit only. Dep & stake £10 on slots for 200x10p Fire Blaze? Blue Wizard? Megaways? bonus spins. Wagering applies. T&Cs apply.
  • 4.5/5
    Quick Spinner Casino
    50 Bonus Spins
    For Starburst
    £20 Deposit + £20 Bonus
    Equals 400 spins of £0.10
    Bonus Spins 50 Deposit Spins 400 Claim 450 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. New players only. Min deposit £20. Bonuses to a max of £100 + 50 bonus spins. Wagering bonus 35x. Wagering bonus spins 35x. The winnings must be wagered within 21 days. Bonus T&C apply.
  • 3.6/5
    Fantastic Spins Casino
    25 Bonus Spins
    £10 Deposit + £10 Bonus
    Equals 200 spins of £0.10
    Use bonus code WOW150
    Bonus Spins 25 Deposit Spins 200 Claim 225 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. New players & 1st deposit only. Min deposit £10. Wheel odds & prizes vary, include Games Bonus [“GB”] and Extra Spins [“FS”]. FS must be claimed by 23:59 on day they are received and are valid for 3 days. FS valued at £0.10 per spin. Winnings from FS granted in GB. All GB funds must be wagered x35 before it can be cashed-out up to a value of £100. 18+. Full T&Cs Apply.
  • 4.1/5
    Spin and Win
    100 Bonus Spins
    £10 Deposit + £10 Bonus
    Equals 200 spins of £0.10
    Bonus Spins 100 Deposit Spins 200 Claim 300 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply New customers only. Min dep (Exc. PayPal) £10. 100% Bonus up to £250 + 100 extra spins valued 10p, playable on selected slots. 30x wagering applies to bonus and wins generated from spins, valid 7 days. Max win capped and vary. 18 + Full T&Cs apply.
  • PartyCasino Exclusive Bonus
    50 Bonus Spins
    For Luck O' The Irish, no wagering requirement
    £10 Deposit
    Equals 100 spins of £0.10
    Bonus Spins 50 Deposit Spins 100 Claim 150 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 18+. UK & ROI only. New customers only. Deposit & spend £10, to get 50 Extra Spins on selected slot games (Value £0.10 each). Use within 7 days. Restrictions and T&Cs apply.
  • Magical Vegas Casino
    50 Bonus Spins
    For Starburst
    £20 Deposit + £20 Bonus
    Equals 400 spins of £0.10
    Use bonus code MAGICAL
    Bonus Spins 50 Deposit Spins 400 Claim 450 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply 1st dep (Exc PayPal) of £20 with code Magical. Max bonus £300 on selected Match Slots, 40x wagering on the sum of deposit & bonus, 5x max conversion. 50 Extra spins on Starburst Slots, spin value 0.20p. Extra spins and Winnings playable on Starburst Slots only, 50x WR. 5x MCR. Full T&Cs apply.
  • 3.7/5
    Luna Casino Exclusive Bonus
    50 Bonus Spins
    For Book of Dead
    £10 Deposit + £10 Bonus
    Equals 200 spins of £0.10
    Use bonus code LUNA
    Bonus Spins 50 Deposit Spins 200 Claim 250 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Max. Bonus £50. Maximum amount of Extra Spins is 50. Game: Book of Dead, Spin Value: £0.10. WR of 30x Deposit + Bonus amount and 60x Extra Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the extra 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. Bonus Policy applies.
  • 4.6/5
    Bet442 Casino
    100 Bonus Spins
    For Big Bass Bonanza
    £20 Deposit
    Equals 200 spins of £0.10
    Bonus Spins 100 Deposit Spins 200 Claim 300 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 18+ New players only. Min deposit of £20. 1st deposit only. 100 Spins on Big Bass Bonanza. Wagering Requirements on spins: 35x wagering to be completed within 21 days of being issued. Unused spins Expire after 24hrs. Full T&Cs Apply.
  • 3.6/5
    Royale500 Casino
    100 Bonus Spins
    For Big Bass Bonanza
    £10 Deposit
    Equals 100 spins of £0.10
    Bonus Spins 100 Deposit Spins 100 Claim 200 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. First Deposit Only. Min. deposit: £10. Game: Big Bass Bonanza, Spin Value: £0.1. WR 60x extra spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the extra spin winnings amount or £5 (lowest amount applies). Spins must be used before using deposited funds. Bonuses do not prevent withdrawing deposit balance. First Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos.
  • 4.0/5
    BzeeBet Casino
    100 Bonus Spins
    For Big Bass Bonanza
    £20 Deposit + £20 Bonus
    Equals 400 spins of £0.10
    Bonus Spins 100 Deposit Spins 400 Claim 500 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 18+. New Players Only. Min Dep £20. Offer: 100% of 1st deposit up to £100 + 100 Spins on Big Bass Bonanza. Spins expire after 23:59 GMT on day they are credited. Spins winnings credited as bonus, separate to Cash funds, & subject to 35x wagering of bonus + deposit amounts. Bonus funds expire after 21 days. Affordability checks apply. Terms Apply. BeGambleAware.org.
  • Casushi Casino
    20 Bonus Spins
    For Big Bass Splash, with no wagering
    £10 Deposit
    Equals 100 spins of £0.10
    Bonus Spins 20 Deposit Spins 100 Claim 120 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply 18+. Only available to new players. Minimum £10 first deposit required. 20 Bonus Spins on Big Bass Splash. No Wagering Requirements. Winnings credited directly to cash balance. Neteller and Skrill deposits excluded. Expiry: bonus spins expire 2 days after deposit. Further terms apply.
  • Rialto Casino
    50 Bonus Spins
    For Fishin Frenzy Megaways
    £20 Deposit + £20 Bonus
    Equals 400 spins of £0.10
    Bonus Spins 50 Deposit Spins 400 Claim 450 spins
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply Welcome bonus package on first 3 deposits 1st Dep. Min £20. 40x wagering (bonus & deposit). max bonus to cash 5x. 50 Extra spins. 25x wagering. Max bonus to cash £25. Claim once. See full T&Cs for 2nd & 3rd Deposit offers: Full T&C apply.
  • The Vic Casino
    20 Bonus Spins
    For Lady's Charm Deluxe
    £20 Deposit + £20 Bonus
    Equals 400 spins of £0.10
    Bonus Spins 20 Deposit Spins 400 Claim 420 spins
    ? 18+, T&Cs apply
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Top UK Slot Sites

Slots are the most popular games to play at online casinos, and there are thousands of different kinds. To cater to this demand, the top 50 online casinos in the UK have curated their own selections of slot games which can vary widely in quality.

We have selected the best slot sites in the UK based on their slot game selection, overall site quality, and many other features players appreciate. We’ve categorised the casinos based on the most popular types of slots, so you can find the best online casino for you!

Best Slots Sites

The top UK slots sites have a big number of casino games and welcome bonus offers you can use on slots!

Best for Game Variety

BetVictor has over 1,500 slot games, easy navigation and a great welcome bonus, making it arguably the best slot site. However, the BetVictor welcome offer is geared more towards table games but they still offer some bonus spins! BetVictor’s strength is definitely their wide variety of UK online slots and we personally love the site a lot.

Casushi Casino might look a little old-fashioned, but the selection of top slot games is unbeatable. The slot site has over 2,000 games and offers bonus spins to new customers. We are deducting some points due to the lack of subcategories which makes navigating the slots a little difficult.

NetBet might appear to be more focused on sports betting, but it stands head and shoulders above many sites with over 1,500 UK online slots. What we particularly love about NetBet is their navigation menu; you can find the most popular slot themes on their own tabs. Only NetBet free spins no deposit could sweeten this online slots site!

Best for Progressive Jackpots

Mr Vegas has a massive selection of jackpot slots with numerous different themes and features. It is hands down the best slot site for progressive jackpot slots as several jackpots can rise to millions at the same time! The site also has lots of daily jackpots, so all types of players should be satisfied with Mr Vegas slots.

Unibet is our second pick for progressive jackpots due to their 200+ catalogue. Where they stand out is the Daily Jackpots category: the slot site has 180 progressive jackpots that are won every day! Unibet casino bonus is also applicable to many jackpot slots, making the online casino a great option for you.

BetMGM is one of the new UK slots sites but already in the top-3 for jackpot slot games. In addition to many of our favorites, the MGM Casino UK has several exclusive casino slots you won’t find anywhere else. BetMGM’s bonus might not be the best, but several online slot sites have much worse libraries so take a look at this one when you want to play online slots.

Best for Megaways

PartyCasino offers over 100 Megaways slots, including favourites like the Dog House Megaways and newer games such as Neptune’s Fortune Megaways. Party Casino is often overlooked among UK slot sites but there’s plenty to like about it, including the Party Casino free spins bonus.

Regal Wins promo code REGAL nets you some free spins and a deposit bonus, the latter of which you can spend on some of their Megaways slots! Regal Wins is one of the better looking UK slots sites and has loads of other games you can play in addition to Megaways video slots.

Betway has a really fantastic selection of Megaways, although slightly fewer games than the other two. What made us add it to the less are the Betway 125 free spins and the variety of Megaways titles; few sites can match the number of different themes you can find on Betway.

Best for Free Spins

bet365 has a terrific free spins bonus for online slots UK, as you can spend 100 free spins on several different video slots. The bet365 casino bonus requires just a £10 deposit and there are no wagering requirements! bet365 is also one of the top slot sites in the UK with plenty of fun and new slots to test.

Yeti Casino awards you 23 spins on registration, and another 77 after your first £10 deposit. You also get a refund bonus if you end up losing your deposit during your gaming session! Although the wagering requirements are on the higher side for the free spins, you can play one of the most popular slots ever, Book of Dead.

Quatro Casino welcome bonus includes up to 700 free spins, which is a massive deal! You do have to make a big deposit, but the overall value of the bonus money is excellent. The Casino Rewards brand has a great online slot selection and plenty of other online casino games, too.

How We Rate UK Slot Sites

In addition to having a ton of the best slot games, we expect the UK online slots sites we recommend to excel in many areas. We rate online casino sites based on transparency, fairness and legality in addition to online casino game quality and volume, payout speed, customer support, and slots bonuses.

The BonusFinder team has decades of collective experience in online gambling and each slot site review is based on our expertise and players’ comments. Our reviews are fair and transparent, although we will collect a small fee for each player who signs up through our website to play online slots.

Below are more details on our review processes:

Transparency and Fairness

First and foremost, we only recommend and list slot sites which are licensed and regulated by the UK Gambling Commission. This is crucial as these sites are bound to follow all regulations to take care of their customers’ funds and personal details, in addition to running fair games.

We also accept online slot sites to our websites if they have a clear and transparent casino bonus policy. Each casino bonus on BonusFinder has been tested to make sure there’s no “catch” that makes it impossible to wager through, for example. You can always trust that we have your interests at heart.

Licensing

As mentioned above, each online casino listed here is licensed by the UKGC. This means the online slot site follows strict standards for player protection, fairness, and financial security. You can find the UKGC stamps on each website to indicate they have passed the inspection and received a license. If you only play on slots sites recommended by BonusFinder, you can be sure that they are legal.

Slot Library

When recommending online casinos for specific games, we naturally take a look at their casino games and the variety they offer. When it comes to the best slot sites in the UK, we are very fortunate since most operators have hundreds if not thousands of games to choose from.

The best UK slot sites have a great selection of different slots, in addition to some other games to satisfy all kinds of players. The best sites also run slot tournaments and other promotions slot players can participate in to enhance their gaming experience.

Bonuses

Naturally welcome bonuses are an important factor when choosing among online slots sites. There are a ton of bonus spins and deposit offers to choose from, so it might be difficult to pick the best offer for you.

The best online slot sites listed here have great bonuses you can use on slot games. We consider factors like initial deposit and wagering requirements when we add new offers to our list, so you can be certain that different aspects of the offers are reasonable for all UK slots players.

Payment Options

We seek out the best slot sites with convenient payment options like eWallets and pay by phone. Depositing funds is simple on all sites and you can always withdraw your deposits whenever you feel like it. Minimum and maximum deposit and withdrawal limits are also important to us since they are important to you.

Signing Up for a Slot Site

Registering a new account on any slot site is really simple and each has roughly the same steps listed below. You can only sign up on an online slots site once to get bonus money, but you can sign up for several different sites within the same group, for example.

  1. Choose a slot site from our list and click on the green button to begin the sign up process
  2. Complete the required form with some personal details. Note that some KYC (Know Your Customer) detail are required like ID documentation, proof of age, and payment method verification.
  3. During the registration, you can make a deposit to get the welcome bonus (there are hardly any no deposit offers in the UK).
  4. Complete the registration form and start exploring the site!

Online Slot Features

Once you have made your choice of the best slot sites, it’s time to start playing! If you are new to casino games, here’s a short guide on slot games’ main features.

  • Base Game
    The base game refers to the normal gameplay of the slot with the standard reels, meaning without any extra features. Normally you just spin the reels in the base game and you can adjust your bet after each spin.
  • Bonus Rounds
    Bonus rounds and features are triggered when certain events happen in the base game, such as landing three scatters or a bonus symbol on the reels. Bonus features include expanding symbols, free spins, extra games where you choose among different options, and bigger multipliers per spin.
  • RTP
    Return-to-player percentage indicates the average payout of the slot over long-term play. Slots with RTP of 97% or over are considered high RTP and therefore better options, but it doesn’t matter that much as in the long term, you will lose more than you win no matter what slot you play.
  • Volatility
    Volatility indicates how often a slot game pays out and whether the payouts are big or small. Low volatility slots pay out frequently but a little at a time, while high volatility slots are the opposite of that.
  • Symbols
    Symbols are the icons that appear on the reels and indicate your winnings. Usually some symbols in a game are classic slot symbols like cherries, diamonds and card symbols and the rest fit the theme better. You can find all symbols, their value, and which ones include bonus features from the game info.
  • Paylines
    Paylines determine how much you win per spin, addition to the number of symbols you land. They run usually from left to right and the total number can vary per game, but usually there are between 5 and 20. If you land enough of the same symbols on a payline, you win. Some slots let you adjust the number of paylines you bet on while others make you bet on all of them on every spin.

Types of Online Slots

On each online slot site, you can find hundreds of slot games which might get overwhelming if you don’t know yet what you like to play the most. Below we’ve listed the best online slots you can find on any online slots site! You can also check out our list of the top 10 best slot games or test demo slots UK if you want to play free online slots.

Classic

Did you know that the first slot machine was the Liberty Bell designed by car mechanic Charles Fey all the way back in 1894? The original ‘One-Armed Bandit’ had three reels which were spun by pulling a mechanical lever on the side, and paid out a jackpot of 50 cents. The classic slots you will find in today’s online slots sites have come on a bit since then, but they still hark back to the simplicity of the first designs. 

These online slots games have retro styles, basic graphics, and Vegas-like sounds. Playing classic online slots can be a calmer and more relaxing experience than games bursting with bonus features to keep track of. Classic games also have some of the highest RTPs, making them the perfect choice when you need to play through a wagering requirement. 

Due to its simplicity, player favourite Starburst can be considered a classic slot. Many online casinos give free spins bonuses for Starburst because this is a great game for first-timers and has an enduring appeal with more experienced slots players.

Megaways

Megaways casino games shook up the online gambling world when Big Time Gaming first released Bonanza in 2016. Nowadays, you can find Megaways versions of all the most popular slots and almost any theme imaginable from Ancient Egypt to the furthest reaches of the future. 

Megaways slots are so appealing because they have many more ways to win than your standard slot. They have 6 reels with 2-8 symbols showing on every spin creating up to a maximum of 117,649 paylines.

Our favourite Megaways casino is definitely Party Casino who have a dazzling selection of over 100 Megaways slots, including all the classics and some rarities like Shamrock Holmes which combines our favourite consulting detective with the magic of the Emerald Isle. 

Slingo

You could argue that slingo isn’t really an online slot game, since it blends both slots and bingo. The game type is still quite new online and most slots sites don’t have as many slingo games as they do slots, but the number of slingo sites is increasing steadily.

The game is played on a 5×5 bingo-style grid and a slot reel below it, and the goal is to get numbers on the reels which also appear on the grid. If you get five numbers next to each other on the grid, you get a slingo!

The game might seem confusing but the game play is surprisingly simple once you start. In addition, many slots sites have plenty of tournaments where you can end up winning some extra prizes if you do well.

Progressive Jackpot

Many online slots will boast of big jackpots, but it is the progressive jackpot slots that have the capacity for truly life-changing wins. Standard jackpots are set by the casino or developer and do not change. Progressive jackpots, on the other hand, keep increasing the more times the game is played, until one lucky winner scoops up the prize. 

The biggest progressive jackpot slots are hosted by the online casino game developer, and the jackpot will be shared by several different games and different casinos. This huge player base allows the jackpots to grow into six-figure sums, as the jackpot takes a small cut from each spin made on any of the games included. 

The biggest wins from progressive jackpots have come from WowPot and Mega Moolah series, but there are a lot of excellent jackpot slots to choose from on any slot site.

Daily Jackpots

Daily jackpots are guaranteed to pay out every day, so there is one lucky winner every day! These are sometimes called ‘Daily Drop’, ‘Must Drop’, ‘Must Go’, or ‘Must Win’ jackpots, and while the winnings aren’t as big as on the ones that aren’t won daily, these can still offer some decent sums.

Red Tiger first introduced the Must Drop concept back in 2016 when Paddy Power approached them to ask for a feature that would add excitement to slot players during the UEFA Euro Cup. Thus the Must Drop was born, as a slots jackpot that had to be to be won by the end of the game. The closer the time got to the full 90 minutes, the greater the chance of winning, and the higher the level of excitement! 

Online Slot Themes

Hopefully you’re not too overwhelmed, since now we will discuss themes you can see on the best online slots! Themes are usually important to players since you can to play something you enjoy. For example, if you really dislike vampire themes, you’ll know to avoid Blood Suckers slots. Each online slots site has a ton of different themes, here are just a few of our favorites:

  • Animal Slots: Examples include dinosaurs, dragons, wolves, dogs, cats … you name it, someone’s got it! Animal themed games range from sweet and cuddly to terrifying, so every animal lover should find a slot they like.
  • Movie & TV Slots: These are based on popular films and shows from recent years and include characters, storylines, and events from them! Popular games include Peaky Blinders, Ace Ventura Pet Detective, and Deadwood.
  • Lucky Irish Slots: All stereotypes of course, but these popular slots include pots of gold, leprechauns, and other classics from the Emerald Isle. Irish-themed slot range from silly to mystical, and there are plenty to test on St. Patrick’s Day.
  • Ancient Mythology Slots: Particularly popular in this category are Ancient Egyptian and Greek gods and mysteries. However, you can also play slots like Book of Dead where you go on an adventure rather than play with the gods themselves.
  • Fruit Slots: Very traditional slots which often don’t have many bonus features, just fruit symbols and maybe some free spins.

Online Slots Tournaments

Slot tournaments are one of the main promotions online slot sites provide to existing customers. Usually the site has marked certain slot games as a part of the tournament and players participate by playing these games with a certain amount of money.

If you want to take part in slot tournaments, make sure to check the casino websites for information on them: when they start, what you need to do to participate, and how often can you play in order to win something.

There are a couple of different types of slots tournaments: One Hit awards the highest single win over a specified number of spins, while Fair Change divides the wins by stake, giving everyone the same chance to win.

Since online slots come in many forms, there are naturally plenty of developers who make them. The best slot sites have a mix of casino games from many online casino game providers; below we’ve gathered the top providers who make out favourite slot games.

NetEnt

NetEnt is a Swedish company established in 1996. It has given us some of British players’ best liked slots, including Starburst, Gonzo’s Quest and Finn and the Swirly Spin. NetEnt casinos also have many slots tied in to popular TV & movie franchises, including Narcos, Knight Rider, and Gordon Ramsey’s Hell’s Kitchen.  

Microgaming

Microgaming is one of the biggest slot developers in the world, both in terms of the number of casinos that have their games and the sheer quantity of titles that they have created. They have so many games to choose from that there are a number of Microgaming casinos who don’t see the need to sign-up with any other game providers, as Microgaming have all bases covered.  

Microgaming leads the pack when it comes to signing lucrative deals with popular franchises, and has made slots versions of fan favourites such as Game of Thrones, Battlestar Galactica and Jurassic Park. 

Yggdrasil Gaming

Although you won’t find Yggdrasil Gaming’s slots in as many casinos as the bigger studios, it is well worth hunting them down. Yggdrasil are committed to creating a higher quality gaming experience for slot players, and their graphics are second to none. Check out Vikings Go Berserk, and Blood Moon Wilds as two of their top titles. 

Playtech

Playtech are probably best known for their Age of The Gods games, which draw on Greek mythology and multiple bonus features to create a lasting legacy.

There are many variants of the basic game to choose from, but our favourites are Age of the Gods – Goddess of Wisdom and their recent foray into the Nordic legend, Age of the Gods Norse – Gods and Giants. You will normally find all of these and more at the best Playtech casinos.  

Play’n GO

The most famous Play’n GO game is the monumental success Book of Dead. Players just can’t get enough of the slot’s protagonist Rich Wilde, and he has taken on a life of his own and spawned many sequels.

What really makes Play’n Go casino games stand out is the exciting stories that unfold as you play, and a range of bonus rounds and features that are lacking in many competitors’ lacklustre copies of these games. 

IGT

IGT makes both online slots and real world live casino slots that you can find all over the world in brick-and-mortar casinos. They have created a range of branded video slots, including Transformers, Harley Davidson and Ghostbusters, and also have the most cat-themed online slots of any game provider we have reviewed, including Kitty Glitter and Prowling Panther. 

Red Tiger

Red Tiger slots are some of the most sought after games in 2024. One of the reasons is their epic progressive jackpots, and their Daily Drops. The main reason though is the quality of their games which are chockablock with surprises and bonus features. Their most popular games include Piggy Riches Megaways, Narcos Mexico and Primate King, but one of our favourites is the highly volatile Reptizillion Power Reels! 

Red7 Slots

Bristol based studio Red7 Mobile were renowned for making slots that worked perfectly on hand-held devices since the dawn of smartphones in the 2010s. They were acquired by gambling industry giants Scientific Games in 2017. You can still find a number of Red7 Slots at some of the biggest UK slot sites.  

No Limit City

No Limit City is an independent games studio based in Sweden, that tries to push the boundaries of what slot games can be. You will not find any cute leprechauns or relaxing fishing games in the No Limit catalogue, but rather angry roadkill or graffitied public toilets.

No Limit City’s slots are not to everyone’s tastes, and I think this studio is the Marmite of the online gaming world – you will either love them or hate them. You will find the biggest selection of No Limit Slots at the best new slot sites

UK Slots Regulations

Online slots are regulated a bit more in the UK than in other countries. The purpose is to keep players safe and gaming fun. These regulations are implemented on every slot site, so you can’t avoid running into them when you play.

The UK Gambling Commission has banned a couple of features on slot games, mainly bonus buys and auto spins. Bonus buy lets you skip the base game and buy your way to the bonus game, which might encourage reckless spending, and auto spinning means you don’t control the spins yourself but instead set the reels to spin automatically.

In addition, the UKGC required increased time between spins to promote safer gambling, and credit cards are not allowed as deposit methods on slot sites.

Tips for Playing on Online Slot Sites

  1. Only play on legal online slot sites: check for the UKGC license at the bottom of the website or sign up through BonusFinder UK.
  2. Check out game catalogue: make sure the slot site has the games you like to play, or at least big enough library so that you can discover new favourites.
  3. Claim the welcome bonus: utilise free spins and deposit bonuses to get extra spins for the best online slots.
  4. Utilize the mobile gaming options: download the casino app if you like a particular site for easier gaming or bookmark the mobile website on your phone or tablet.

Summary

We’ve now covered the basics of UK slot sites and how to play safely on them. We are here to help you find the best online slots and places to play. To sum up this article, we’ve gathered the top slot sites in this table:

Slot Site Welcome Bonus # of Games Best For
BetVictor 30 Spins + Wager £10, Get £30 3,000+ Game Variety
Mr Vegas 100% up to £200 7,600+ Progressives
Party 50 Spins 1,000+ Megaways
bet365 100 Bonus Spins 2,000+ Free Spins

Whether you like a particular slot site depends on your preferences and gaming style. Fortunately there are plenty of casinos to choose from if you don’t like our picks! You can choose any site from our list at the top of this page and always play safely and legally.

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FAQ

1?? What is the best slot site to win real money?

Because the games at licensed slots sites are random you are not more likely to win at one site than another. In our opinion, the best slots sites are the ones that give the best player bonuses and let you play with more.

2?? Can I play real money slots on my phone?

Absolutely. In 2024 all slots sites should work perfectly on your phone, and most are designed on a mobile-first principle. All the bonuses we list can be claimed by both mobile and desktop players, and some casinos will even let you pay-by-phone bill!

3?? Are online slots rigged?

Despite concern that online slots are a scam and never payout, this is absolutely not the case. One of the criteria for getting a licence from the UK Gambling Commission is proving that your casino games and slots are fair, and that the Random Number Generators that control them are truly unbiased. All the sites recommended by BonusFinder are fully legal in the UK so you can be confident that you are not being conned.