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Best Slot Sites in the United Kingdom

Last Updated: 01/06/2022

Online slots are soaring in popularity across the UK by offering fast-paced entertainment, captivating gameplay and the potential to win life-changing prizes. Players now have a dazzling array of online slots at their disposal, from classic 3-reel and 5-reel slots to 3D slots and progressive jackpot games. Hundreds of online casinos are vying for your business, and they all try to entice you with attractive bonuses and exciting new games.

This page will help you identify the best online slots sites in the UK. We will explain the different types of online slots on offer, how to play them and the average returns you can expect to receive. We will also shine a light on the exciting bonus offers you can choose from, and explain the pros and cons of the different payment methods. Ultimately we will steer you towards reputable, trustworthy online slots sites that will treat you fairly, pay you out on time and keep you entertained with a strong array of games. Read on to learn more about the best online slots UK players can enjoy.

We only feature websites and apps that are fully regulated and legal in the UK. Terms and Conditions apply for all bonuses. Must be +18 to participate.


Top Recommended Casinos

Casino ProviderBonus OfferReview
1

100% Up To £300 bonus + 150 bonus spins on eligible Netent Games

  • Minimum Deposit to Qualify£20.00
  • Wager Requirement35x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1421
  • Mobile Slots1421
  • Jackpot Slots107

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-£99: max £100 bonus + 50 spins on selected games; £100-£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 & subject to wagering requirement (35x deposit + bonus). Only bonus funds contribute to wagering requirement. Bonus funds expire within 30 days; bonus spins within 72hrs. Affordability checks apply. Terms Apply. Please gamble responsibly. BeGambleAware.org.

2

Spend £20 and get 110 Extra Spins

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement20x
  • Multiple Deposit Bonus
  • Value per Free Spin£1.00
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots820
  • Mobile Slots750
  • Jackpot Slots135

New players. Deposit £10, stake £10 on Bingo, get £30 bonus (x4 Wagering) & £10 Club voucher, &/or stake £10 on slots, get 200 x 10p Fishin’ Frenzy spins (x20 wagering) & £5 Club slots voucher. Use winnings in cash balance/further deposit to claim both. £5 minimum withdrawal. 18+.

3

100% Up To £200 + 100 Extra Spins

  • Minimum Deposit to Qualify£0.00
  • Wager Requirement35x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots956
  • Mobile Slots956
  • Jackpot Slots52

18+. T&Cs Apply

4

Welcome Package 100 Spins + up to £200 Bonus

  • Minimum Deposit to Qualify£20.00
  • Wager Requirement35x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1234
  • Mobile Slots1234
  • Jackpot Slots31

New Players only. 18+. Min First Deposit £10. Min Second and Third deposit: 20. Wagering requirement apply 35x. Offer valid for 72hr. Spins expire after 24hr. 100 spins includes 3 deposits

5

100% Welcome Bonus up to £200 on your First deposit + 50 bonus spins

  • Minimum Deposit to Qualify£20.00
  • Wager Requirement35x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1386
  • Mobile Slots1386
  • Jackpot Slots70

18+. New players only. Min deposit £20. Max bonus bet £5. Bonus spins on selected game only and must be used within 72hrs. Winnings from Bonus spins credited as bonus funds and capped at £100. Bonus funds expire within 30 days. Offer is 100% bonus match up to £200 + 50 Bonus spins on your 1st deposit, and 50% bonus match up to £50 on your 2nd deposit. Bonus funds are separate to cash funds & subject to wagering requirement (35x deposit + bonus). Only bonus funds contribute towards wagering requirement. Affordability checks apply. Terms apply. Please gamble responsibly. BeGambleAware.org

6

100% Welcome Bonus up to £100 + 10% Cashback

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement35x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1176
  • Mobile Slots1176
  • Jackpot Slots13

Welcome bonus for new players only | Maximum bonus is 100% up to £100 | Min. deposit is £20 | No max cash out | Wagering is 35x bonus | Maximum bet with an active bonus is £5 | Eligibility is restricted for suspected abuse | Cashback is cash with no restrictions | Skrill & Neteller deposits excluded | Cashback applies to deposits where no bonus is included |

7

100% Welcome Bonus up to £200 + 100 Extra Spins

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement50x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots956
  • Mobile Slots956
  • Jackpot Slots52

Terms and Conditions apply. New players only. 18+. Min Deposit £10. Welcome package splits over 3 deposits, 35x wagering requirement applies to match up bonus. Offer valid for 1 week. 100 spins split to 20 spins per day for 5 days. 50x wagering applies to spins.

8

Welcome Package 100 Spins + up to £200 Bonus

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement35x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots580
  • Mobile Slots530
  • Jackpot Slots11

New depositing players only. Min. deposit £10. Max. bonus varies per deposit (see below). Welcome package includes 3 deposit bonuses as follows: First Deposit: 100% up to £50 + 20 Spins on Starburst *Min. Deposit £10 Second Deposit: 50% up to £75 *Min. Deposit £20 Third Deposit: 50% up to £75 *Min. Deposit £20 After the first deposit made, customers will get + 20 Spin for the next 4 days: 1st day after First Deposit: 20 Spins of Finn and the Swirly Spin 2nd day after First Deposit: 20 Spins of Book of Dead 3rd day after First Deposit: 20 Spins of VIP Black 4th day after First Deposit: 20 Spins of Aloha! Cluster Pays Winnings won with spins that require a deposit, have to be wagered 35x. Bonuses that require a deposit, have to be wagered 35x. This offer is available to players residing in United Kingdom only.

9

Up to £25 Bonus + 25 Spins

  • Minimum Deposit to Qualify£20.00
  • Wager Requirement35x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1171
  • Mobile Slots96
  • Jackpot Slots31

18+. T&Cs Apply.

10

100% up to £150 bonus + 50 bonus spins

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement35x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots2000
  • Mobile Slots2000
  • Jackpot Slots53

18+. New player only. 7 days to claim offer, min of £10. Wagering req. 35x. 50 wager-extra spins 0.10p each on Book of Dead awarded after wagering complete, winnings paid as cash. Full T&Cs apply.

11

Welcome Bonus 100% up to £200 + 100 Spins

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement35x
  • Multiple Deposit Bonus
  • Value per Free Spin
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots2500
  • Mobile Slots
  • Jackpot Slots32

New depositing players only. Min. deposit £10. Max. bonus varies per deposit.

12

Up to £400 In welcome bonus + 100 Freespins

  • Minimum Deposit to Qualify£20.00
  • Wager Requirement40x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots250+
  • Mobile Slots12
  • Jackpot Slots12

Welcome Package. 1st deposit offer: Min dep £20. Both bonus and spins valid for 7 days from claim date. up to bonus £100. Bonus & wins playable on selected slots . WR on bonus: 40x (deposit+bonus), max convertible rate from bonus is 10x. Max extra spins is 30. Extra spins & winnings playable selected Red Tiger games, WR on extra spins is 30x, max Extra Spins convertible amount is £20, T&C's apply.

13

100% up to £250

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement50x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1445
  • Mobile Slots540
  • Jackpot Slots248

18+. UK players only. New customers only. Minimal initial deposit £10. Once the offer is claimed players have 30 days to release equivalent to initial deposit as a cash reward up to £250. 50x wagering requirement before cash rewards applied. Certain deposit options are excluded. T&Cs apply

14

Welcome Offer - 200% Bonus Up To £200 + 5 Extra Spins

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement25x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots725
  • Mobile Slots725
  • Jackpot Slots7

Valid upon first Casino deposit; Select bonus in Cashier; Deposit and bonus must be wagered on Slots; €2.5 max bet; Wager deposit + bonus 25x in 7 days; Some games excluded; See full terms; 18+. begambleaware.org

15

Wager £10 & Get 200 Spins on Big Bass Splash

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement0x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1183
  • Mobile Slots1519
  • Jackpot Slots53

18+ new customers only. Opt in, deposit and wager £10 on selected games within 7 days of opening new account. Get 200 Extra Spins on Big Bass Bonanza, no wagering .Extra Spins Expire in 7 days. Card payments only. T&Cs Apply. BeGambleAware®: Gambling Help & Gambling Addiction | BeGambleAware | Please Gamble Responsibly.

16

Royal excitement awaits 100 spins + up to £200 bonus

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement35x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots700
  • Mobile Slots650
  • Jackpot Slots11

Regent Play Welcome Bonus offer consists of 3 deposits: 1st deposit: 100% up to £50 + 20 Spins on Starburst, (minimum deposit required £20) 2nd deposit: 50% up to £75, (minimum deposit required £20) 3rd deposit: 50% up to £75, (minimum deposit required £20) After first deposit made, customers will get + 20 Spin for the next 4 days: 1st day after First Deposit: 20 Spins of Finn and the Swirly Spin 2nd day after First Deposit: 20 Spins of Book of Dead 3rd day after First Deposit: 20 Spins of VIP Black 4th day after First Deposit: 20 Spins of Aloha! Cluster Pays

17

100% up to £50 plus 50 bonus spins on Big Bass Bonanza

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement40x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots918
  • Mobile Slots896
  • Jackpot Slots46

18+. New players only. 100% bonus on first deposit up to £50 & 50 boys spins for Big Bass Bonanza slot only. Min first deposit of £10. Max bonus £50. 50 Bonus spins credited on first deposit. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expire after 48 hours. Game restrictions apply. Further Terms Apply.

18

Play £10 & Get £50 of Free Bingo or 30 Extra Spins

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement10x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • Visa
    • Mastercard
    • PaysafeCard
    • Skrill
  • Slots1450
  • Mobile Slots1400
  • Jackpot Slots40

New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit.18+. Extra Spins: on Double Bubble. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply.

19

100% Welcome Bonus up to £500

  • Minimum Deposit to Qualify£20.00
  • Wager Requirement40x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1094
  • Mobile Slots1094
  • Jackpot Slots24

1st dep. of £20-£500, max bonus £500 on selected slots; 40x wagering on the sum of deposit & bonus applies. Max convertible 5x bonus amount received. T&Cs Apply 18+. New players only. Begambleaware.org

20

Play £10, Get 30 Extra Spins on Rainbow Riches

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement10x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.01
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots120
  • Mobile Slots120
  • Jackpot Slots8

New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit.18+. Extra Spins: on Rainbow Riches. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply. **£10 lifetime deposit for Daily Free Game., must opt in. Min £10 deposit & wager. 30 day expiry from deposit.18+. Extra Spins: on Rainbow Riches. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply. **£10 lifetime deposit for Daily Free Game.

21

Deposit £10, Get 30 Extra Spins

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement1x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.20
  • Payment Methods
    • Visa
    • Mastercard
    • PaysafeCard
    • Skrill
  • Slots360
  • Mobile Slots340
  • Jackpot Slots17

New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit. Extra Spins: on Secrets of the Phoenix Megaways. Spins value: 20p each. Play Responsibly. BeGambleAware.org. 18+. £10 lifetime deposit for Daily Free Game. Full T&Cs apply.

22

Wager £20 on slots and Get 200 Extra Spins

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement10x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.01
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots487
  • Mobile Slots80
  • Jackpot Slots

Wager £/€20 on slots and Get 40 Cash Extra Spins for five consecutive days.* 18+ new customers only. £/€20 stake on slots each day within 5 days of 1st deposit to qualify. £0.1 Spins on Book of Dead. £/€250 total max withdrawal. Full T&Cs apply. www.begambleaware.org

23

50 Extra Spins

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement40x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1510
  • Mobile Slots33
  • Jackpot Slots47

18+ Only | | 50 Extra Spins on Book of Dead | Min. deposit is £10. This offer is only available for first time depositors | Also after your First Deposit you may claim an additional 30 Extra Spins by visiting the Kicker Section | Game: Book of Dead | Spin Value: £0.10 | OJO’s Rewards and Game Play policy applies | T&C's Apply

24

Play £10, Get 50 Free Extra Spins

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement10x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.20
  • Payment Methods
    • Visa
    • Mastercard
    • PaysafeCard
    • Skrill
  • Slots520
  • Mobile Slots520
  • Jackpot Slots13

New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit. Extra Spins: on Double Bubble. Spins value: 20p each. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply. 18+. *£10 lifetime deposit required.

25

Get 100% Deposit Bonus up to £50

  • Minimum Deposit to Qualify£10.00
  • Wager Requirementx35
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1021
  • Mobile Slots3538
  • Jackpot Slots17

Welcome Bonus: 18+. Terms and Conditions Apply. New Players Only. Minimum deposit: £10. Wagering requirement: 35x. T&Cs apply

26

100% Bonus Up To £500

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement40x
  • Multiple Deposit Bonus
  • Value per Free Spin
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots950
  • Mobile Slots90000
  • Jackpot Slots18300

1st dep only (min £10), max bonus £500, valid 7 days, on selected slots; 40x wagering on the sum of deposit & bonus applies. Max convertible to real is 5x bonus amount received bonus & wins for selected slots only, Full T&C apply.

27

100% Bonus plus 100 Bonus Spins

  • Minimum Deposit to Qualify£20.00
  • Wager Requirement40x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots866
  • Mobile Slots866
  • Jackpot Slots78

18+. New players only. 100% bonus on first deposit up to £50 & 100 Bonus Spins (50 spins on day 1, 25 on day 2, 25 on day 3) for Book Of The Dead slot only. Min first deposit of £20. Max deposit £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expire after 48 hours. Games restrictions apply. T &C's apply. BeGambleAware.org.

28

100% Deposit Bonus up to £300

  • Minimum Deposit to Qualify£20.00
  • Wager Requirement50x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1173
  • Mobile Slots1173
  • Jackpot Slots77

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 and T&Cs Apply. 18+

29

100% Deposit match Up to £150 + 50 Extra Spins on Starburst

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement35x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots310
  • Mobile Slots310
  • Jackpot Slots52

Full T&Cs apply. New player only. 7 days to claim offer and deposit a min of £10 with a further 7 days to wager 35x. Cash stakes only and wagering contributions vary. Max reward £150. 50 wager-extra spins 0.10p each on Starburst awarded after wagering complete, winnings paid as cash. 3 day expiry.

30

100% Welcome Bonus up to £200 + 77 Extra Spins

  • Minimum Deposit to Qualify£20.00
  • Wager Requirement30x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1120
  • Mobile Slots910
  • Jackpot Slots60

Valid for 1st depositors only • Deposit £20 min. with code •Extra Spins (FS) & bonus for selected games only • FS expire in 14 days • FS wins capped at £10, excl. JP wins • FS wins credited as bonus • Bonus wins capped at £500, excl. JP wins • Wager bonus x30 -req. vary by game • Bonus expires in 90 days • Payment method & country restrictions apply • Withdrawal terms & T&Cs apply

31

Spend £10, Get 30 Extra Spins on MONOPOLY Paradise Mansion

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement10x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.01
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1950
  • Mobile Slots1900
  • Jackpot Slots26

New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit.18+. Extra Spins: on MONOPOLY Paradise Mansion. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply.

32

100% Welcome up to £123 + 200 Extra Spins after deposit

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement50x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1253
  • Mobile Slots1253
  • Jackpot Slots14

18+, New players only, 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, Cashback is cash, so no wagering, Cashback applies to deposit where no bonus is included, 200 extra spins are after deposit. Full T&C’s apply

33

100% Up To £250 + 100 Extra Spins

  • Minimum Deposit to Qualify£20.00
  • Wager Requirement35x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1675
  • Mobile Slots1625
  • Jackpot Slots18

18+ T&C Apply.

34

Up To 500 Extra Spins on Starburst

  • Minimum Deposit to Qualify£0.00
  • Wager Requirement65x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots500
  • Mobile Slots500
  • Jackpot Slots4

New Players Only, £10 Min Fund, £8 Max Win Per 10 Spins, Max Bonus Conversion Equal To Lifetime Deposits (Up To £250) To Real Funds, 65X Wagering Requirements And Full T&Cs Apply.

35

Up to £100 + 100 Extra Spins on your First Deposit

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement50x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1227
  • Mobile Slots1227
  • Jackpot Slots14

18+. FIRST DEPOSIT ONLY. BONUS: MIN. DEPOSIT £20. 50x WR APPLY. WINNINGS CAPPED AT 5x BONUS AMOUNT. FREE SPINS: 10 BATCHES OF 10 FS DAILY. WINNINGS CAPPED AT £10 PER BATCH

36

100% Welcome Bonus up to £50 + 50 Bonus Spins

  • Minimum Deposit to Qualify£20.00
  • Wager Requirement40x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots783
  • Mobile Slots783
  • Jackpot Slots37

18+. New players only. 100% bonus on first deposit up to £50 & 50 Bonus Spins (30 spins on day 1, 10 on day 2, 10 on day 3) for Rich Wilde and the Book Of The Dead only. Min first deposit £20. Max deposit £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expiry 2 days. Games restrictions apply. T &C's apply. BeGambleAware.org.

37

200% Up To £200 + 100 Extra Spins

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement35x
  • Multiple Deposit Bonus
  • Value per Free Spin£1.00
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots574
  • Mobile Slots574
  • Jackpot Slots14

Short T&C: Min. deposit £10 with code ‘BONUS200’. Debit card only. Wagering requirements apply. Selected Slots only. 5 redemption points per £1 to clear bonus. Game contributions vary. 7-day expiry. Terms apply.

38

Get £10 Cashback when you wager £50 on Signature Live Blackjack

  • Minimum Deposit to Qualify£10.00
  • Wager Requirement50x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.01
  • Payment Methods
    • Visa
    • Mastercard
    • PaysafeCard
    • Skrill
  • Slots430
  • Mobile Slots400
  • Jackpot Slots36

New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit. 18+. Extra Spins: on Double Bubble. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply.

39

100% Welcome Bonus up to £300 + 100 Spins

  • Minimum Deposit to Qualify£20.00
  • Wager Requirement35x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.20
  • Payment Methods
    • PayPal
    • Visa
    • Mastercard
    • PaysafeCard
  • Slots1672
  • Mobile Slots1672
  • Jackpot Slots88

18+. New players only. min deposit £20. Max bonus £5. Winnings from spins capped at £50. 100 Zee Spins valid on Starburst (first 10 credited immediately upon first deposit; rest credited at 07:00 GMT at 10/days). Spins must be used by 23.59 GMT of the day on which they are credited to player account, any unused shall be removed. Bonus funds must be used within 30 days. Bonus funds are separate to cash funds, and subject to 35x wagering (bonus + cash). Full terms apply. BeGambleAware.org

40

200% Welcome Bonus up to £500

  • Minimum Deposit to Qualify£20.00
  • Wager Requirement50x
  • Multiple Deposit Bonus
  • Value per Free Spin£0.10
  • Payment Methods
    • PayPal
    • Visa
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Guide to the Best Slot Sites

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Online slots offer an extremely convenient way to bring the excitement of the casino floor into your home. They have become increasingly popular in recent years, leading to a proliferation in the number of sites offering slots online. The world’s largest bookmakers and land-based casinos now target UK players with online slot games, putting them in direct competition with specialist online casinos. They are all seeking to secure your business, and it can be difficult to know which sites to choose.

Fortunately we have done your homework for you. Our expert team of reviewers constantly assesses the relative strengths and weaknesses of all the online slots UK sites, allowing us to recommend only the best online slots providers. It is important to stick to the respectable, trustworthy sites that we recommend on this page, as a number of shady, unlicenced operators will also try to lure you in. We can help you separate the honest sites from the scammers and help you find online slots providers that offer great bonuses, fast payouts, impeccable software and superb customer service.

This article explains how we rate the best online slots sites UK, the types of online slots you can enjoy and how the bonuses work. We also highlight exciting new online slots, the best mobile slots and the leading software providers. You will learn what terms like RTP (return to player), RNG (random number generator) and progressive jackpot mean, find out more about the top-rated online slots of 2022, learn how to play the games, discover the payment methods at your disposal and absorb the fascinating history of online slots. Once you have read this article, you will be armed with all the information you need to enjoy the best online slots in the business.

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How We Rate The Top Slots Sites in the UK

The CasinoSource team of expert reviewers performs a thorough assessment of all the different online slots sites before making recommendations. They sign up for an account at each site and monitor the simplicity of the process, while also assessing the level of security provided. They test the casino bonus offers and compare them against rival sites to see how much value they offer players. Our reviewers will make deposits via various methods and play the games on offer, testing them for fairness, speed, graphics and usability. They make withdrawals and assess how long it takes for payouts to arrive, while also interacting with customer service representatives and gauging how polite, professional, helpful and friendly they are.

The key criteria they look for are game variety, game quality, user experience, bonuses and the types of slots on offer. They give each online casino a star rating for these five categories, while also breaking each review down into bonuses and promotions, registration, deposits and withdrawals, experience, mobile play, software, game choice, VIP programs, customer support, security, responsible gambling and more. Then they give an overall score to each video slots online site, allowing you to compare them and find the best online slots.

The best online slots UK sites work well on a number of devices, provide a compelling range of bonuses and offer a wide range of different banking methods. They have a history of paying customers on time, treating them with respect and keeping personal and financial details secure. We only recommend trusted sites that tick all these boxes. Our reviewers also constantly pay attention to the new online slots sites that are launched, as exciting new operators continue to muscle into this space. They revisit sites on an ongoing basis to check that they maintain the highest standards, ensuring that you receive up-to-date information at all times.

Types of Online Slots

The online slots sector has grown increasingly sophisticated in recent years. Players now have a thrilling array of different games to choose from, and many of them follow entertaining themes, but they can be broadly divided into five key categories:

  • Video slots | These are the original online slots games and they continue to dominate the online slots industry. Video slots online include the classic 3-reel and the more elaborate 5-reel slots, which can contain exciting features like wilds and scatter symbols, with live-action backgrounds and animations to keep you entertained. The best video slots of 2022 include Kingdoms Rise: Captain’s Treasure, Wheel of Fortune, Starburst and Mega Joker.
  • 3D Slots | Online slots have been given another exciting dimension with the advent of 3D slots, which are growing increasingly prevalent. The play is exactly the same as video slots, but the graphics have been given an update, there is a stronger narrative and the overall experience is more immersive. Top 3D slots of 2022 include The Rift, Turning Totems, Gonzo’s Quest and Jungle Jim El Dorado.
  • Progressive Jackpot Slots | These games have proved extremely popular, as they offer players the chance to win huge prizes off relatively small stakes. A small portion of each player’s stake contributes to the jackpot, which continually rises until a player finally triggers it. There have been many instances of players receiving seven-figure and even eight-figure prizes lately. Top progressive slots of 2022 include Mega Moolah, Age of the Gods and Mega Fortune.
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  • Fruit Machines | These slots mimic the machines that you will find in bars and arcades across the UK, featuring 3 reels and a payline in the middle. Symbols generally include classics like fruit, bells and the number 7. They give you the option to hold or nudge reels, adding another layer of intrigue. The best fruit machine games at online slots sites for 2022 include Fruit Shop, Booming 7 and Fruit Fiesta.
  • Branded Slots | The trend for themed slot games has accelerated over the past few years. They are similar to video slots, but they follow a narrative based on a famous movie, TV show or band. Some of the best for 2022 are Game of Thrones, Britain’s Got Talent, Rocky and Guns’N Roses.
  • Online Slots Bonus Options

    Most sites use an online slots bonus in a bid to attract new customers. They are varied, and they come with different wagering requirements attached, so it pays to shop around for the best offers. For example, one site might offer a 200% welcome bonus up to £500, plus 50 bonus spins, meaning you will receive £750 to play with and 50 extra spins if you deposit £250 of your own money. A rival site might offer a 100% welcome bonus up to £300, plus 300 extra spins. That would give you £600 to play with, along with 300 bonus spins, if you deposit £300 of your own money.

    Another important factor to bear in mind it the wagering requirement, otherwise known as the rollover requirement. This refers to the number of times you need to play this bonus credit before you can think about making a cash withdrawal. You might have a 35x rollover requirement attached to the 200% welcome bonus up to £500, and a 40x rollover requirement attached to the 100% welcome bonus up to £300 promotion. Many players like to the lowest wagering requirements for bonuses on online slots.

    Ideally you want the largest matched deposit bonus possible, as many free spins as possible, and the lowest rollover requirements possible. You generally have to make a compromise when selecting casino bonuses, but some sites offer a really compelling, rounded bonus in a bid to attract new customers. Some online slots sites also offer a free online slots no deposit bonus. If you ever see a free online slot no deposit offer, it is well worth accepting, as you do not need to deposit any of your own money, and you could earn a cash withdrawal if you are successful.

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    UK Mobile Slots Sites

    The best online slots UK sites now bring a myriad of exciting gaming experiences directly to the palm of your hand. This is very convenient, as you can play the very best video, 3D, progressive jackpot and branded slots while lying on the sofa, sitting on your lunch break, travelling to meet friends or anywhere else. The first mobile slots sites offered a minimal range of games, the graphics were rudimentary and there were frustrating lag times, but now the sector is extremely sophisticated. Some UK mobile slots sites are now actually better than their desktop counterparts.

    Most online slots sites are now adapted with HTML5 to be played on any mobile and tablet and any OS including iOS, Android, Windows Phone. Some can be accessed via your mobile browser, but many of the best online slots casinos now have dedicated mobile apps. Mobile use among Brits continues to skyrocket with each passing year, and mobile casinos are growing in popularity too. New online slot sites are launched on a regular basis, and many of these online slot sites now have a mobile-first strategy.

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    Best Slots Software Providers

    The online slots industry is blessed with a wealth of extremely talented software providers. They all compete to launch the most exciting games each year, and the real winner is the player, as the top online slots are continually improving. These are the most important online slots software providers:

    • Microgaming | The Isle of Man-based firm is one of the world’s largest online slots providers. It supplies hundreds of titles, including Mega Moolah, Game of Thrones, Mermaids Millions and Thunderstruck II.
    • Playtech | The Matrix, Superman, Top Gun and American Dad are some of the exciting branded slots that Playtech has produced. It is also famous for making Age of the Gods and Frankie Dettori's Magic Seven, among many others.
    • NetEnt | This Swedish software supplier is responsible for some of the best online slots games of all time, including Starburst, Gonzo’s Quest and Mega Fortune. It has also produced branded video slots such as Gordon Ramsay’s Hell’s Kitchen, and NetEnt casinos are very popular among players.
    • Play’n GO | This is another Swedish company with a wealth of exciting online slots to its name. Play’n GO is responsible for hits such as Troll Hunters 2, Book of Dead and Mystery Joker.
    • IGT | International Game Technology is a multinational firm headquartered in London, with offices in Las Vegas, Rhode Island and Rome. It is a pioneer in the field of branded video game slots, and its biggest hits include Family Guy, Da Vinci Diamonds, Pharaoh’s Fortune and Cleopatra.
    • SG Digital | The digital division of Scientific Games produces a number of exciting slots after purchasing providers NYX Entertainment and NextGen. They include Raging Rhino Megaways, Lucky Lanes and Prisma Blast.
    • Novomatic | Austrian software provider Novomatic celebrated its 40th birthday in 2020. It works with several of the best online slots UK sites and releases new online slots on a regular basis. They include Sizzling Hot, Book of Ra and Lord of the Ocean.
    • Betsoft | This software firm is renowned for quirky releases such as The Slothfather and Good Girl Bad Girl. It has a particular focus on mobile casinos and 3D slots.

    Online Slots Tournaments

    The best online slots sites that we recommend often host tournaments based on a particular slot – typically either a classic game or a hot new release. You can join this tournament and bid to complete the challenges in order to climb up the board and win prizes. Exciting prizes include cash, trips, cars and gadgets. These online slots tournaments are generally hosted in collaboration with the software provider in order to boost the profile of a particular game. They provide players with a great opportunity to earn valuable prizes and they are always worth seeking out at the top online slots UK sites.

    Payouts and RTP

    The key concept you have to familiarise yourself with when playing slots online is RTP, which stands for return to player. This percentage refers to the amount of wagered money a particular slot will return to you over a prolonged period of time. It essentially refers to the house edge. If a slot has an RTP of 94.75%, it means the average will eventually get back £94.75 for every £100 staked.

    However, slots are games of chance, so some players will make a profit and others will make a loss in a playing session. The RTP gives you an idea of the average return you can expect. You should look for as high an RTP as possible. NetEnt’s Mega Joker has offered an RTP of up to 99%, while Jackpot 6000 goes up to 98.8%, making them some of the best games for players.

    You should be presented with a payout table when you browse the games at the best online slots sites. It should tell you the symbol values, the special values and the paylines, while explaining the features and providing any relevant jackpot information. Payout tables should list the prizes either as a cash amount or as a multiplier. For example, if you see “100x”, it means you stand to win 100 times the size of your single line bet. It should inform you of the online slots bonus rounds and the minimum and maximum prizes. You can use this information to determine your projected payouts at new online slots.

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    Online Slots Rules: How to Play Online

    Use our comparison tool to find your perfect match, click on the link to visit the site and then set up an account by following these steps:

    • Click the button that reads “Sign Up”, “Join Now” or “Register”.
    • Provide your personal details, select your username, choose a strong password and select GBP as your currency.
    • Agree to the terms and conditions and confirm your age.
    • You will need to verify your email address by clicking through on a link, and follow a KYC procedure to confirm your ID. You generally need to provide a copy of photo ID and proof of address.
    • Choose your online slots bonus if applicable.
    • Visit the cashier and make a deposit using your preferred payment method.
    • Select a slot that appeals to you, paying careful attention to the payout table.
    • Set your bet and hit the spin button. Set the maximum bet per line if you are playing a progressive jackpot slot.
    • Keep playing until you decide to make a withdrawal. Remember that all wins read from left to right.
    • Visit the cashier to make a withdrawal. Choose your preferred withdrawal method, enter your amount and confirm. Withdrawals are never instant, and wait times should be made clear in the terms and conditions.

    Top Rated Online Slots Games 2022

    The best online slots are a matter of personal preference, as everyone has different tastes, but some slots have proved universally popular over the years. They include classics like Gonzo’s Quest, Mega Moolah and Rainbow Riches. A number of new online slots have also drawn considerable praise from players since launching in 2022:

    • Happy Riches
    • Immortal Glory
    • Mayan Eagle Nobleways
    • Nyjah Houston Skate for Gold
    • Gems of Adoria
    • Age of Conquest

    Online Slots with the Biggest Progressive Jackpots

    A number of UK slots players have won life-changing sums by playing progressive jackpot slots at the best online slots UK sites in recent years. The most famous triumph came in 2015, when an English soldier called Jon Heywood won a cool £13.2 million playing Mega Moolah. He staked just 25p on his final spin and landed the jackpot, which saw him land a place in the Guinness Book of World Records.

    A Finnish player has since topped it by playing Mega Fortune, but many slots lovers are bidding to claim a new record each day. There are many more examples of players winning multimillion-pound payouts from online slots UK, and these are the online slots with the biggest progressive jackpot payouts:

    • Mega Moolah
    • Major Millions
    • Arabian Nights
    • Hall of Gods
    • Beach Life

    Slots Payment Methods

    The best online slots sites will offer you a wide range of payment methods for making deposits and withdrawals. Credit and debit card payments are popular among visitors to online slot sites UK. You can alternatively use an e-wallet such as Neteller or PayPal, but you will probably not be allowed to claim a bonus if you opt for Neteller or Skrill. This is designed to prevent bonus abuse. Vouchers such as a PaySafeCard are accepted at many new online slots sites, along with other prepaid cards, while you might also see niche methods.

    Withdrawal times vary depending on the online casino you play at and the withdrawal method you choose. As a rule, bank transfers are normally a lot quicker than receiving a cheque in the post. You should expect to receive withdrawals via the same method you used to make a deposit, as this is a licensing condition designed to stamp out money laundering.

    Slots RNG (Random Number Generator) and How it Affects the Games

    A random number generator is used to calculate the result each time you hit spin on an online slot game. An RNG is also used on physical slots found in casinos and arcades, and it is also used to determine the results of online casino like roulette and blackjack. The RNG produces a random number at the software underpinning the game each time you hit spin.

    This random number goes through the game software and produces a tangible result, resulting in a win or loss for the player. All licensed operators targeting UK players will fall under the jurisdiction of the UK Gambling Authority, which monitors the RNG technology that online slots sites use to ensure it remains fair and unaffected by any activity outside of the game engine.


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    Slots Selection at Online Casinos

    There are several trustworthy casinos with attractive welcome bonuses, slick software and great customer service. What often sets them apart is game variety. Not all online casinos are created equal, and you will find a much broader choice of exciting games at some of the best online slot sites. UK players have a wealth of options to choose from, so it makes sense to identify an online slots site with a great selection of games. Some players do not mind a small, streamlined selection, but it can grow boring after a while. The best online slots casinos list thousands of different games, created by multiple software providers, ranging from industry titans like NetEnt and Microgaming to small, independent studios.

    History of Slot Machines

    The first online casinos launched in the UK back in the mid-1990s, with a limited selection of basic video slots and virtual table games. Players were faced with rudimentary graphics, lag times, games cutting out and a poor selection. However, the industry quickly matured. Major high-street bookmakers like William Hill and Ladbrokes piled in, land-based casino launched video slots online and digital sportsbooks branched out into casino games.

    Increased competition forced operators to launch increasingly attractive online slots bonus promotions, and broaden their ranges. That led to an explosion in the number of software providers working in the space, and the overall level of quality and variety on offer soared. By the mid-2000s, progressive jackpots went past the £4 million mark, inspiring millions more UK players to get involved in the action.

    The growth in online slots accelerated with the launch of iOS and Android in 2008, and mobile casinos have continued to grow ever since. Now 3D slots are pushing the sector in intriguing new directions, and virtual reality promises to make the best online slots even more exciting in the years ahead.

    Online Slots FAQs

    How to play online slots?

    Online slots are straightforward when it comes to playing them. Once you have funded your account, simply head to your favourite slot on the casino of your choice, select the amount you wish to bet per spin and press the spin button. Some slots even make it easier with the option to select a pre-defined amount of spins where it would automatically spin for you.

    What are the best online slots?

    With the increasing number of new slots coming out in the online gambling industry, making a choice as to which one to play to get the best experience can be challenging, that’s why here at casinosoure.co.uk we have compiled 5 of the best slots on the market: - Starburst by NetEnt - Gonzo’s Quest by NetEnt - Book of Dead by Play’n GO - Game of Thrones by Microgaming - Age of the Gods by Playtech

    Do slot sites offer slots bonuses?

    Of course! The majority of online casino sites offer slot bonuses, while some may be more focused on offering their bonuses on live casino, table games, bingo or even sportsbook. The main focus in terms of bonuses remains on slots. If you look at the great list of casinos listed here, you will see that for the greater part, they offer their bonuses on slots.

    Which online slots pay out the most?

    The first thing to keep in mind when playing online slots is that it is all based on luck, thanks to RNG (Random Number Generator). Therefore, one day you might get extremely lucky on a slot then the next day the same slot won’t pay out as much. If we were to pick the slots that pay out the most, it would be: Mega Joker (NetEnt), Goblins Cave (Playtech) and Texas Tea (IGT).

    Can I play online slots for free?

    Yes, you can play online slots for free. As soon as you register on the online casino site of your choice, you will see that a great number of slots have the option to play the demo version, which will allow you to try it for free and make your mind up prior to placing your real money bets. Remember that when playing for free in the demo version, there are no chances of winning real funds.

    How do you pick a winning slot game?

    Picking a winning slot game can be tricky, as we explained earlier, games run with an RNG, a random number generator. This means that the slot games are checked to make sure they offer random results to provide fair gameplay to all users. Your best bet to pick a winning slot game is to look at the RTP, which is the return to player. The higher the percentage, the higher the chance to hit a win.

    Can I win money playing slots?

    Yes, besides being a recreational activity, slots, just like other online casino games, offer you a chance to win real money while playing them. The winnings you can get will vary from one slot to the other and the gains can also range from little amounts to winning the jackpot with multiple figures.

    Are slots sites licensed in the UK?

    Slots sites have to be licensed in order to be able to provide an online gambling platform to users. All the reputable slot sites will have a registration number that can be cross-checked with the relevant gambling commission. Once the slots sites are granted their licenses they must also follow an array of rules to provide a fair and safe gambling environment.
    1. UK Gambling Commission (www.gamblingcommission.gov.uk)
    2. BeGambleAware (www.begambleaware.org)
    3. The Betting and Gaming Council (www.bettingandgamingcouncil.com)
    4. International Association of Gaming Regulators (www.iagr.org)
    5. Gamblers Anonymous (www.gamblersanonymous.org.uk)
    6. Independent Betting Adjudication Service (www.ibas-uk.com)

    Contributor

    Lena Sciberras
    Lena Sciberras
    Reviewer since 07/2020
    Lena Sciberras is our Casino Content Manager. Lena has been covering online casino and gambling related topics in multiple online publications. She believes in delivering fresh, useful, in-depth and unbiased information, tips, reviews and guides to the casino players around the world. Her main priority is to educate the readers about the best online slots, their mechanics and payouts.