Free Online Slot Games at the Best UK Online Casinos

Author: Rob McLauchlan | Fact checker: Henri Ojala · 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.

Free online slot games are perfect for testing out online casinos. Find out everything you need to know to play free online slots in the UK without risking any of your own money.

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  • 5.0/5
    Mr Vegas Casino Of the Month
    11 Bonus Spins
    For Pink Elephants 2, with no wagering
    £200 Bonus
    This bonus is 100% up to £200
    The 11 welcome spins are wager free so you can keep what you win!
    Claim Bonus
    ? 18+, T&Cs apply
    Bank wire transfer MasterCard MuchBetter NETELLER PayPal Paysafecard Skrill VISA
    #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
    Neptune Play New Online Casino
    25 Bonus Spins
    For Book of Dead, no wagering on winnings
    £200 Bonus
    This bonus is 100% up to £200
    Claim Bonus
    ? 18+, T&Cs apply
    AstroPay Bank wire transfer MasterCard MuchBetter PayPal Paysafecard Skrill Trustly
    #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.
  • 5.0/5
    Magic Red Casino
    20 Bonus Spins
    For Big Bass Bonanza, no wagering on winnings
    £100 Bonus
    This bonus is 100% up to £100
    Claim Bonus
    ? 18+, T&Cs apply
    AstroPay Bank wire transfer MasterCard MuchBetter PayPal Paysafecard Skrill Trustly
    #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.
  • 5.0/5
    Winomania
    100 Bonus Spins
    For Cleopatra, Gold Rush, Wild Eagle, Scratch King
    £100 Bonus
    This bonus is 100% up to £100
    Claim Bonus
    ? 18+, T&Cs apply
    Maestro MasterCard NETELLER Paysafecard Skrill VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply 1st deposit only | min deposit £10 | max bet with bonus £2 | max bonus £100 | X40 wagering | bonus spins valid for selected games only | x40 wagering on bonus spins winnings | expires within 24 hours | T&C's apply
  • 5.0/5
    Betway Recommended Bonus
    125 Bonus Spins
    For Big Bass Hold & Spinner
    Stake £10 & Get 125 Free Spins with No Wagering!
    Claim Bonus
    ? 18+, T&Cs apply
    Boku Instant Banking MasterCard NETELLER PayPal Paysafecard Skrill VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. New UK customers only. 125 free 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 free 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 New Online Casino
    50 Bonus Spins
    For Ancient Fortunes Poseidon Megaways
    £100 Bonus
    This bonus is 100% up to £100
    Claim Bonus
    ? 18+, T&Cs apply
    Bank wire transfer MasterCard MuchBetter NETELLER PayPal Paysafecard Skrill VISA
    #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 New Online Casino
    200 Bonus Spins
    For Starburst
    Use bonus code freespins200
    Claim Bonus
    ? 18+, T&Cs apply
    Maestro MasterCard VISA Visa Electron
    #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 free spins on Starburst. The free spins will be added by 23:59 the day after qualification. The free spins are only available on Starburst.
  • 5.0/5
    O'Reels New Online Casino
    50 Bonus Spins
    For Big Bass Bonanza
    £25 Bonus
    This bonus is 100% up to £25
    Claim Bonus
    ? 18+, T&Cs apply
    Bank wire transfer MasterCard MuchBetter PayPal Trustly VISA
    #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.
  • 5.0/5
    Fortune Mobile
    150 Bonus Spins
    For Starburst, Finn and the Swirly Spin, Aloha! Cluster Pays
    £500 Bonus
    This bonus is 100% up to £100 + 50% up to £100 + 50% up to £300
    Claim Bonus
    ? 18+, T&Cs apply
    MasterCard MuchBetter PayPal Trustly VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply 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&C’s apply.
  • 5.0/5
    PlayFrank
    50 Bonus Spins
    For Starburst
    £100 Bonus
    This bonus is 100% up to £100
    Claim Bonus
    ? 18+, T&Cs apply
    Instant Banking MasterCard MuchBetter PayPal Paysafecard Trustly VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply New players only. Min deposit £20. Bonuses to a max of £100+ 50 bonus spins. Wagering bonus 35x. Wagering bonus 35x. The winings must be wagered within 21 days. Bonus T&C apply.
  • 5.0/5
    PLAYGRAND
    30 Free Spins No-Deposit
    For Book of Dead,
    30 Bonus Spins
    For Reactoonz
    £100 Bonus
    This bonus is 100% up to £100
    Claim Bonus
    ? 18+, T&Cs apply
    Bank wire transfer Maestro MasterCard NETELLER PayPal Paysafecard Skrill Trustly
    #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
  • 5.0/5
    Grosvenor Casino Recommended Bonus
    Deposit £20, Play with £50
    Claim Bonus
    ? 18+, T&Cs apply
    Maestro MasterCard PayPal Paysafecard VISA Visa Electron
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply New customers only. Min deposit £20 (Exc Paypal). Max bonus £30, bonus amount non-withdrawable, playable on selected games only. 30x wagering for £30 bonus. Expires within 30 days. Max win £2,000. T&Cs apply.
  • 5.0/5
    Mr.Mega New Online Casino
    £80 Bonus
    This bonus is 100% up to £80
    Claim Bonus
    ? 18+, T&Cs apply
    MasterCard PayPal Paysafecard Skrill VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 18+, Welcome Bonus: New players only, 1st deposit: £10, max £80. Wagering requirements apply 35x.
  • 5.0/5
    Regal Wins
    50 Bonus Spins
    For Starburst, no wagering on winnings
    £300 Bonus
    This bonus is 100% up to £300
    Use bonus code REGAL
    Claim Bonus
    ? 18+, T&Cs apply
    Bank wire transfer Maestro MasterCard PayPal Paysafecard VISA Visa Electron
    #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. Free 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.
  • 5.0/5
    PartyCasino
    50 Bonus Spins
    For Luck O' The Irish, Pig Banker Three Little Piggies, Fireball Frenzy, Breaking Banks, no wagering requirement
    Claim Bonus
    ? 18+, T&Cs apply
    Apple Pay MasterCard NETELLER PayPal Paysafecard Payz Skrill VISA
    #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 Free Spins on selected slot games (Value £0.10 each). Use within 7 days. Restrictions and T&Cs apply.
  • 5.0/5
    The Grand Ivy Casino
    25 Bonus Spins
    For Starburst
    £300 Bonus
    This bonus is 100% up to £300
    Claim Bonus
    ? 18+, T&Cs apply
    Apple Pay MasterCard NETELLER PayPal Paysafecard Skrill Sofort VISA
    #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.
  • 5.0/5
    MyriadPlay New Online Casino
    £50 Bonus
    This bonus is 100% up to £50
    Claim Bonus
    ? 18+, T&Cs apply
    AstroPay MasterCard MuchBetter PayPal Paysafecard Skrill Trustly VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. #ad. 18+. Gamble Responsibly. Gambleaware.org. Welcome Bonus:18+ New Players Only. Minimum deposit: £10. Promotion available for 72 hours. Wagering requirements 35x. Terms and Conditions Apply.
  • 5.0/5
    Lucky Vip
    Deposit £20, Play with £30
    Claim Bonus
    ? 18+, T&Cs apply
    Bank wire transfer MasterCard PayPal Paysafecard VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply New customers only. Min deposit £20 – PayPal Excluded. Max Bonus, Wager requirement & Max win £2,000 Apply. Play on selected games. T&Cs Apply.
  • 5.0/5
    Bet442 New Online Casino
    100 Bonus Spins
    For Big Bass Bonanza
    Claim Bonus
    ? 18+, T&Cs apply
    AstroPay MasterCard MuchBetter PayPal Paysafecard Skrill Trustly VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 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.
  • 5.0/5
    Fafabet
    £200 Bonus
    This bonus is 100% up to £200
    Claim Bonus
    ? 18+, T&Cs apply
    MasterCard VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. #ad. 18+. Gamble Responsibly. Gambleaware.org. This promotion is valid for new UK FafaCasino customers aged 18 years and over who have yet to avail of a FafaCasino Welcome Offer.Start from 00:01 on 07/11/2023.To activate this promotion you must deposit and stake a minimum of £20. You must place a minimum of 5 bet during the qualifying period and 4 of these bet must be at least half the value of your highest placed wager. Full Terms Apply.
  • 5.0/5
    BetMGM Casino
    100 Bonus Spins
    For Big Bass Splash, no wagering on winnings
    No BetMGM Bonus Code Required
    Claim Bonus
    ? 18+, T&Cs apply
    Apple Pay Bank wire transfer MasterCard PayPal VISA
    #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 Free Spins. Wagering contributions vary. Free Spins worth 10p each on Big Bass Splash. 3 day expiry. There is no wagering requirement attached to any winnings from the Free Spins, and winnings will be instantly credited to your Account. Winnings can be withdrawn. T&Cs apply.. New customers only.
  • 5.0/5
    Slots n'Play
    25 Bonus Spins
    For Big Bass Bonanza, with no wagering requirements
    £100 Bonus
    This bonus is 100% up to £100
    Claim Bonus
    ? 18+, T&Cs apply
    Bank wire transfer MasterCard MuchBetter NETELLER PayPal Paysafecard Payz Skrill
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Min. deposit: £20. Offer valid on the first deposit. Wagering Requirement: 35x. No wagering requirements for the extra spins. Spins are credited in Big Bass Bonanza. Spins expire after 24 hours. Promotion available for 72 hours. Terms and Conditions apply.
  • 4.7/5
    MrQ Recommended Bonus
    75 Bonus Spins
    For Hex, No Wagering
    Use bonus code 75HEX
    Claim Bonus
    ? 18+, T&Cs apply
    Bank wire transfer MuchBetter Pay by phone PayPal VISA Visa Electron
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. First deposit only. Min deposit & spend £20. Max 75 spins on Hex at 10p per spin. Spins credited upon spend of £20. Spend requirement must be met within 12 hours of first deposit. Winnings are not capped.
  • 4.7/5
    Lottomart New Online Casino
    100 Bonus Spins
    £200 Bonus
    This bonus is 100% up to £200
    Claim Bonus
    ? 18+, T&Cs apply
    Bank wire transfer MasterCard VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. £20 min. deposit. £200 max match. 50x wagering on Bonus + Free Spinswinnings. Free Spins must be used to reveal paythrough. Game eligibility & contributions vary. 10p to £5 bet range. £1,000 max redemption. New players only. Exclusive to select customers. Limitied time offer. Valid 7 days. 18+. BeGambleAware.org. T&C's apply.
  • 4.7/5
    Casumo
    20 Bonus Spins
    For Sahara Riches Cash Collect
    £25 Bonus
    This bonus is 100% up to £25
    Claim Bonus
    ? 18+, T&Cs apply
    Apple Pay MasterCard NETELLER PayPal Paysafecard Skrill Trustly VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. New customers. Opt-in required. 20 Bonus Spins on “Sahara Riches Cash Collect” at 10p per spin and 100% Deposit Bonus up to £25 on first deposit (payment method and play restrictions apply). Min. deposit £10. 30x wagering for Bonus Spins and Deposit Bonus (game weighting applies). Max. £5/spin or £0.50/line. 30 days expiry. Please gamble responsibly ? BeGambleAware.org ? T&Cs apply
  • 4.7/5
    Fortune Games
    Win up to 500 Bonus Spins in 9 Pots of Gold
    Claim Bonus
    ? 18+, T&Cs apply
    MasterCard NETELLER Pay by phone PayPal Paysafecard Skrill VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply New players only, £10 min fund, Free spins won via mega reel, 65x bonus wagering requirements, max bonus conversion to real funds equal to lifetime deposits (up to £250)
  • 4.7/5
    BetUK New Online Casino
    100 Bonus Spins
    For Big Bass Splash
    Claim Bonus
    ? 18+, T&Cs apply
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. New cust only. Opt in & deposit £10+ in 7 days & wager 1x in 7 days on any casino game (excluding live casino and table games) for 100 Free Spins. Wagering contributions vary. Free Spins worth 10p each on Big Bass Splash. 3 day expiry. 18+. T&Cs apply.
  • 4.7/5
    Winlandia Exclusive Bonus
    100 Bonus Spins
    For Big Bass Bonanza
    £50 Bonus
    This bonus is 100% up to £50
    Claim Bonus
    ? 18+, T&Cs apply
    MasterCard NETELLER PayPal Trustly VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. First Deposit Only. Min. deposit: £20. Game: Big Bass Bonanza, Spin Value: £0.1. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used before using deposited funds. Bonuses do not prevent withdrawing deposit balance. First Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies. Bonus Policy applies.
  • 4.6/5
    Rialto Casino
    200 Bonus Spins
    For Fishin Frenzy Megaways
    £300 Bonus
    This bonus is 100% up to £100 + 50% up to £100 + 50% up to £100
    Claim Bonus
    ? 18+, T&Cs apply
    MasterCard PayPal Paysafecard VISA
    #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 Free spins. 25x wagering. Max bonus to cash £25. Claim once. See full T&Cs for 2nd & 3rd Deposit offers: Full T&C apply.
  • 4.6/5
    Rhino.bet
    75 Bonus Spins
    For Bonanza
    Use bonus code casino75   Low wagering casino with only 10x play through on free spins winnings
    Claim Bonus
    ? 18+, T&Cs apply
    Bank wire transfer Maestro MasterCard VISA
    #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/IE. Sign Up using the promo code ‘casino75’ and make a minimum deposit of £25. Wager a minimum £25 on slots and receive 75 free spins on Bonanza.T&C's apply.
  • 4.6/5
    Kong Casino
    50 Bonus Spins
    For Big Bass Bonanza
    £200 Bonus
    This bonus is 100% up to £200
    Claim Bonus
    ? 18+, T&Cs apply
    Apple Pay Google Pay Maestro MasterCard NETELLER Pay by phone PayPal Paysafecard
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. New players only, £10 min fund, £200 max matchup bonus, free 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.
  • 4.6/5
    LeoVegas
    50 Bonus Spins
    For Big Bass Splash, with no wagering
    £100 Bonus
    This bonus is 100% up to £50 + 100% up to £50
    Winnings from the wager-free spins are instantly credited to the player’s real money balance that can be withdrawn.
    Claim Bonus
    ? 18+, T&Cs apply
    Apple Pay Bank wire transfer MasterCard PayPal VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply New reg only. Opt in & deposit either £10, £25 or £50 within 7 days & further 7 days to wager your deposit 35x to unlock reward (up to £50 for each of your first 2 deposits). Wagering/game contributions vary. 25 x 10p wager-free spins added to Big Bass Splash with each qualifying deposit, 3 day expiry. Other Promotional Play Restrictions Apply. T&Cs apply. www.BeGambleAware.org
  • 4.6/5
    Great Britain Casino
    £200 Bonus
    This bonus is 100% up to £200
    Claim Bonus
    ? 18+, T&Cs apply
    Apple Pay Google Pay MasterCard NETELLER PayPal Paysafecard Skrill VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply New players only, £10 min fund, £200 max bonus, max bonus conversion equal to lifetime deposits (up to £250), 65x wagering requirements and full T&Cs apply.
  • 4.6/5
    Magical Vegas
    50 Bonus Spins
    For Starburst
    £300 Bonus
    This bonus is 100% up to £300
    Use bonus code MAGICAL
    Claim Bonus
    ? 18+, T&Cs apply
    Maestro MasterCard PayPal Paysafecard VISA
    #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 Free spins on Starburst Slots, spin value 0.20p. Free spins and Winnings playable on Starburst Slots only, 50x WR. 5x MCR. Full T&Cs apply.
  • 4.6/5
    Casimba
    50 Bonus Spins
    For Book of Dead
    £250 Bonus
    This bonus is 100% up to £200 + 50% up to £50
    500 loyalty points
    Claim Bonus
    ? 18+, T&Cs apply
    Bank wire transfer Cash2Code MasterCard Neosurf NETELLER Paysafecard Skrill Trustly
    #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.
  • 4.6/5
    Barz
    50 Bonus Spins
    For Starburst
    £300 Bonus
    This bonus is 100% up to £300
    Claim Bonus
    ? 18+, T&Cs apply
    Bank wire transfer Cash2Code MasterCard Neosurf NETELLER Paysafecard Skrill Trustly
    #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.
  • 4.6/5
    Lottogo
    50 Bonus Spins
    For Big Bass Splash
    £50 Bonus
    This bonus is 100% up to £50
    Claim Bonus
    ? 18+, T&Cs apply
    MasterCard PayPal VISA Visa Electron
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 18+. New Players Only. Minimum Deposit £20, 40x Wagering in 7 days, Deposit played first, Max Bet £5, Max Win 5x the bonus amount, Certain games excluded, Spin value £0.10 each. Free Spins Available Within 24 Hours of Claiming The Bonus Deposit. Terms & Conditions Apply.
  • 4.6/5
    Fitzdares
    £100 Bonus
    This bonus is 100% up to £100
    Claim Bonus
    ? 18+, T&Cs apply
    MasterCard VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. New customers only aged 18+. Minimum deposit £10. Get a Casino Bonus matched to your first deposit, up to £100, after you stake £20 on slots, credited within 48 hours. Bonus expires in 7 days and has a 40x wagering requirement. Additional T&Cs apply. Please bet responsibly.
  • 4.6/5
    Slots Royale
    Win Up To 500 Free Spins on Big Bass Splash
    Claim Bonus
    ? 18+, T&Cs apply
    MasterCard NETELLER Pay by phone PayPal Skrill VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. Full Terms Apply New players only, £10+ fund, free spins won via Mega Reel, 65x bonus wagering req, max bonus conversion to real funds equal to lifetime deposits (up to £250), T&Cs apply.
  • 4.6/5
    All British Casino Exclusive Bonus
    10 Free Spins No-Deposit
    For Book of Dead
    100 Bonus Spins
    For Book of Dead
    £100 Bonus
    This bonus is 100% up to £100
    + Always 10% cashback
    Claim Bonus
    ? 18+, T&Cs apply
    Bank wire transfer MasterCard NETELLER PayPal Paysafecard Skrill VISA
    #ad. New UK players only. 18+. Please play responsibly. www.gambleaware.org. 10 free spins on registration (max withdrawal is £100). 100 free 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
  • 4.6/5
    Jackpot Village
    200 Bonus Spins
    For Book of Dead
    Claim Bonus
    ? 18+, T&Cs apply
    Bank wire transfer Cash2Code MasterCard Neosurf NETELLER Paysafecard Skrill Trustly
    #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.
  • 4.5/5
    Cosmic Spins
    100 Bonus Spins
    For Starburst
    £100 Bonus
    This bonus is 100% up to £100
    Claim Bonus
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What are Free Slots?

First of all, what exactly are free slots? Imagine that you just registered at your favourite online casino, perhaps you even met their minimum deposit requirement and now you are ready to browse and play at their online slots, just to find out that what they offer is not exactly what you were looking for. How frustrating!

If only you’d known about how you can test these online slots for free, before going with real money…

At BonusFinder we get that feeling, and we want to make sure that you have the best online gaming experience at our trusted online casinos, so in this article we’ll cover everything you need to know how to play online slots for free in the UK!

Let’s start by clarifying that there are no actual “free games” or “free slots” in the UK, however, there is a way to test what the online slot is all about, its features, bonus rounds, volatility and much more, without hurting your pocket: by playing it on demo mode!

When you play at an online slot in demo mode, not only you avoid risking your own money, but you can try it and test it before you move on to play your favourite ones for real money!

Are Free Slots Available and Legal in the UK?

Yes, in the UK, playing free slots in demo mode is perfectly legal and possible, according to the UK Gambling Commission, as long as you confirm, before playing, that you are over 18 years old.

It is worth reminding that you should always make sure that the casinos offering demo versions on the online slots are fully licensed and regulated by the UKGC. The best and fastest way to do so, is to scroll to the bottom of the online casino pages to spot the licences displayed there.

Once you have verified that the casino is a safe and regulated place to play, and you have found a list of the best online slots in the UK that you would like to test in demo mode, let’s see which actual steps you need to take to get started.

What you’ll Need to Verify your Age to Play Free Slot Games

Once you have chosen your desired online slot game, you’ll notice a small pop up that will inform you that this is an age restricted demo game and you shall verify your age. In the UK to verify your age, you’ll need to provide personal information such as:

  • Driver’s License
  • UK Mobile Phone Number
  • Credit Card

Don’t worry about providing your credit card details, you won’t be charged at all, since this is simply an age verification step, and remember that online casinos in the UK do not accept credit cards as payment methods, in any case. At this point, after verifying your age, you are ready to begin playing the slot game for free in demo mode!

? Free Online Slot Bonus Features

One of the most exciting features of online slot machines is the bonus game. Even though the free versions of these games don’t pay out money, the excitement of spinning features like the Wheel of Fortune remains. Several features make free slots a very exciting choice. Let’s check them together, one by one:

Bonus Games

Slot bonuses are extra gameplay features or modes where you can maximise your winnings. For example, a certain combination of symbols usually triggers them. Most online casinos have these games, but if you want to know for sure if your desired casino has them, just click on the question mark when you open one of the free slots and it will give you all the necessary information.

Wild Slots Symbols

Wild symbols are the most common type of bonus feature in online slots. They can replace any other winning symbols on free slot machine games. Multiple wild symbols might also trigger some other bonus features. There are several kinds of wild symbols:

  • Expanding Wilds: stretch horizontally or vertically and can even cover the entire reel.
  • Sticky Wilds: hang around on the reels for the next spins.
  • Shifting Wilds: move from one reel to another.
  • Random Wilds: show up randomly and act in surprising ways.
  • Stacked Wilds: will expand to cover more of the reel they land on.
  • Walking Wilds: will shift along the reels and trigger re-spins.

Scatter Slots

Scatter slots are special symbols that pay out regardless of their alignment. It will trigger winnings if you get 3, 4, or 5 scatter symbols anywhere on the reels. Scatter slots are some of the most popular free slots available.

Win Multiplier Bonus

The win multiplier bonus doesn’t apply to free slots, as you can always start a new one. However, many free play slots have this feature as well. A symbol or a feature will trigger a multiplier, multiplying your winnings from the slot machine.

Win Both Ways Online Slots

You can win from left to right or right to left in brand-new games. These online games are fun because you don’t know whether you will win until the last reel has spun. This new feature addresses one of the bores of playing slots, as you don’t know the result until the last reel.

Free Spins

In-game free spins give you extra spins within the game. In practice, you get more rounds with just one spin. A combination of special symbols usually triggers them. This feature is not as popular among free slots as it is with real money slots.

Cluster Pays Slots

Clust slots don’t have paylines. Instead, these free slots pay out if you can group multiple symbols. The more symbols you can group, the more you will win. Clusters are one of the newest forms of slots. Many new slots sites feature clusters and their advanced game types.

Conclusion: are Free Online Slots worth the hype?

Yes, here at BonusFinder we strongly recommend you to try out the free slots through their demo mode before actually signing up for your selected online casino and it gives you the opportunity to play without risking your own money.

Last updated:

? Free Slots FAQ

1?? Where can I play free slots?

You can play slots for free at several British online casinos.

2?? Do free slots in the UK have the same RTP as real money slots?

Yes, both free slots and real money slots have the same exact RTP. While playing in demo mode, you will have a full gaming experience to real money slots, except for the fact that you cannot land any real money winnings.

3?? Can I get a casino bonus to play slots for free?

Yes you can get a casino bonus to play slots on demo mode, you do not need it, since you can just open the free slot and start spinning.

5?? Can I play free slots on mobile?

Yes, you can.Thanks to the HTML5 technology, you can enjoy playing the free slot games via your mobile.