All UK Slot Bonuses for 2023 (321 Active Offers)

Mr Green Casino logo

Exclusive

4.3

kingcasinobonus

Min. Deposit

£10

Wagering

35x W

Max. Cashout

N/A

Slot Games

500

The spins must be used within 72 hours of being claimed, and the winnings should be wagered 35 times before cashing out.

How to Redeem
  1. Click our promotional button
  2. Create an account on the site
  3. Opt-in on the promotional page
  4. Open Lucky Mr Green and accept the spins
Pros and Cons

Pros:

  • There’s a low wagering of 35x
  • The bonus expires in 72 hours
  • The promotion can be claimed on mobile

Cons:

  • Each spin is worth only £0.10
  • Only one game available

Mr Green Casino preview

This casino has more than 10 years of experience in the industry. It has email, phone and 24/7 live chat support. Moreover, you can use numerous methods to deposit, including cards and e-wallets.

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Bonus Codes
Play Safe. New UK customers only. Opt-in required. 1x per customer. Free spins on Lucky Mr Green only. Max. 20 free spins at £0.10/spin with 35x wagering. Spins expire 72 hours from issue. Game, country, currency, player restrictions and terms apply.
mr.play Casino logo
Featured

200% UP TO £40 + 75 SPINS AT MR.PLAY

Exclusive

3.9

kingcasinobonus

Min. Deposit

£10

Wagering

35x B/35x W

Max. Cashout

N/A

Slot Games

1000

  • 200% up to £40
  • 75 bonus spins
Information on the Bonus

Create a new account and deposit more than £10 to receive this bonus. Besides the max bonus of £40, you get 75 spins in batches of 25 for three days to play on Book of Dead, Starburst and Twin Spin.

Before you request the cashout, you have 7 days to complete the wagering conditions of 35x and 24 hours to use the spins. Keep in mind that you cannot place single bets surpassing £4 or £0.50 per line.

Pros and Cons

Pros

  • The spins are credited in pairs of 25 for three days, a UKGC initiative as a responsible gambling tool
  • You get to play on high payout games that have over 96%

Cons

  • The bonus amount you receive is quite low
Bonus Verdict

This offer is great for new players as it allows them to try out multiple game types, along with some of the industry’s most popular slots.

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Bonus Codes
Min. deposit: ₤10. Max. bonus: ₤40. Offer valid on first deposit. The offer expires in 7 days. Offer only applies to new players, aged 18+. Unused spins expire 24hrs after being issued. Spins are on several of our best paying games as follows: 25 games on Book of Dead and 200% bonus upon first deposit. More spins are given upon login on the 2nd day - 25 spins on Starburst and on the 3rd day after the first deposit - 25 spins on Twin Spin. Winnings won with spins that require a deposit have to be wagered x35. Bonuses that require deposit have to be wagered x35
Hot Streak Casino logo

Exclusive

New casino

3.8

kingcasinobonus

Min. Deposit

£10

Wagering

60x W

Max. Cashout

£200

Slot Games

850

  • 10 free spins no deposit
  • 50 bonus spins on deposit
Important Conditions for Free Spins No Deposit

Any spin wins must be wagered 40 times before you may ask for a withdrawal. The maximum conversion is set at 4x up to £200 once the wagering is done.
You can use any slot machine to play it. The deal is available for 7 days.

Bonus Spins Promotional Rules

The winnings must be wagered 30 times to be able to cash out up to 4 times the bonus amount. Only Finn and the Swirly Spin, Aloha Cluster Pays and Starburst slots are available for this offer. Once credited, the spins remain valid for 7 days.

Pros and Cons

Pros:

  • The conversion for this offer is 4x up to £200, which is higher than the market average of £40
  • The free spins on registration will activate automatically when you open the slot
  • You have 7 days to complete the wagering conditions, while the average for this type of bonus is 24 hours

Cons:

  • High wagering requirements of 60x
  • The bonus is available only on a slot
Rate this Bonus
Bonus Codes
Available for new registrations only. Max 10 no deposit bonus spins credited upon SMS validation. Finn and the Swirly Spin only. 60x Wagering, 4x Conversion up to £200.
777 Casino logo

Exclusive

4.6

kingcasinobonus

Min. Deposit

£10

Wagering

30x B

Max. Cashout

£21

Slot Games

1200

How to get the bonus

To activate this exclusive bonus, you have to create an account at 777 Casino and proceed with its full verification. Furthermore, remember that the bonus must be wagered in seven days, or it will expire.

Pros & Cons

Pros:

  • It has a 30x wagering requirement, which is lower than the 35x industry standard
  • Seven days is a longer than usual period for a no-deposit bonus since generally they have a 24-hour time

Cons:

  • The £21 withdrawal limit is low, compared to the industry standard of £50 – £100
Verdict

This bonus is good for new players in the gambling scene, more so that it can be played on slots, live casinos, and table games, thus covering most of the site’s offerings. Still, it has a low withdrawal limit of £21.

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Bonus Codes
New players only • £21 is granted in FreePlay (FP) • FP must be claimed within 48 hrs of receiving the email • Deposit Bonus Offer: £20 min deposit, excluding deposits by Skrill or NETELLER • 100% up to £200 FreePlay (FP) • FP expires after 7 days and wins are capped at the amount of FreePlay received, exc. JP win • FP wins are credited as bonus • Bonus wins are capped at £500 • To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days • Wagering req. vary by game • This offer may not be combined with any other offer • Deposit balance is available for withdrawal at any time • Withdrawal restrictions
All British Casino logo
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Exclusive

4.0

kingcasinobonus

Min. Deposit

£10

Wagering

35x W

Max. Cashout

£100

Slot Games

1100

All British Casino was launched in 2013 and is owned by L&L Europe Ltd company. The platform offers live titles from Evolution Gaming and has high limits when it comes to withdrawals.

This UK online casino offers 5 bonus rounds on registration that comes with a wagering request of 35 times. The bonus must be rolled over within 48 hours after being gained. The offer can be claimed by following the next steps:

  1. Press the promotional button;
  2. Create an account on the casino’s page.

The maximum amount that can be cashed out from this promotion is £100. Also, the spins can be only used on Book of Dead or Scroll of Dead. More details can be found by having a look at the Terms and Conditions section.

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Bonus Codes
Welcome bonus for new players only. Maximum bonus is 100% up to £100. No max cash out. Wagering is 35x bonus. Cashback is cash with no restriction. Cashback applies to deposit where no bonus is included. Maximum bet while playing with a bonus is £5. Max cashout is £100 if never deposited, no max once deposited. Bonus excluded for players depositing with Skrill or Neteller. T&C Apply, 18+
Luck.com Casino logo
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Exclusive

New casino

3.5

kingcasinobonus

Min. Deposit

£5

Wagering

35x W

Max. Cashout

£10

Slot Games

50

Free Spins No Deposit Details

After creating an account with the casino, you will get 100 spins on the Sugar Bonanza Deluxe slot. The spin winnings must be wagered 35 times. The maximum cashout for this offer is £10, and each spin is worth £0.25.

Spins On Deposit Details

To claim 100 spins on Zeus Kingdom of Riches, you must deposit £10. The spin winnings must be wagered 35 times. You can cash out up to £500.

Pros and Cons

Pros

  • Low 35x wagering requirements
  • High stake value of £0.25 per spin

Cons

  • Low max cashout of £10
Rate this Bonus
Bonus Codes
Available for new registered accounts only. Get 20 Free Spins immediately after complete registration, followed by 20 spins every day for the next 4 days. 35x wag. 7 days availability. Max wins: £10. T&C Apply, 18+
Electric Spins Casino logo

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GET50

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Exclusive

3.4

kingcasinobonus

Min. Deposit

£10

Wagering

60x B/99x W

Max. Cashout

£100+B

Slot Games

300

  • 100% up to £10
  • 50 free spins
Info & Claim Details

Only first-time £10 deposits are valid for this bonus. During the deposit process, you must insert the GET50 code.  The match bonus must be wagered 60 times, and the earnings are limited at £100 plus the bonus amount. The spins are given in batches of 10 across five days and can be used only on Starburst. Their wagering requirements are set at 99 and must be used in a maximum of seven days. The bonus is not available for residents of Northern Ireland.

Pros & Cons

Pros

  • The bonus is quickly available to play since is automatically claimed after depositing

Cons

  • The 60x and 99x wagering requirements are much higher than the 35x standard in the industry
Bonus Verdict

Seasoned players are the best audience for this bonus since it has high wagering requirements than the norms for both deposit bonuses and spins. It’s also quick to play since it is automatically claimed and activated upon entering the code.

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Bonus Codes
First-time depositors only (country restrictions apply). Min deposit: £10. Max offer: 100% Bonus up to £10 Games Bonus & 50 Free Spins (on Starburst). 10 Free Spins will be credited per day, across 5 days. Promo code: GET50. Any Games Bonus winnings, if applicable, must be wagered 60x before withdrawal. FS are valid for 7 days and any winnings must be wagered 99x before withdrawal. Games Bonus win cap: £100 + original bonus amount. Wagering contribution varies by game. We reserve the right to deny bonuses based on abusive bonus activity across sites operated by the Company. Deposit balance is available for withdrawal at any time (UK only). General withdrawal restrictions apply. Valid until 31.12.2022 T&C Apply, 18+
Wild West Wins logo

Exclusive

4.3

kingcasinobonus

Min. Deposit

£10

Wagering

65x W

Max. Cashout

£50

Slot Games

1400

  • 20 no deposit spins
  • Up to 500 bonus spins
Free Spins No Deposit T&Cs

Join this casino and validate your debit card to qualify. If you close the pop-up, the offer will not be available. Keep in mind that the spins come with 65x wagering. The maximum you can redeem from the offer is £50.

Bonus Spins Important Terms

Upon a deposit of £10 you can qualify for up to 500 spins on Mustang Gold. These spins are credited in batches of 50 per 10 days. The maximum conversion is set at £250. You have to wager your winnings 65 times.

Pros and Cons

Pros

  • Only bonus funds count to wagering requirements, so you don’t need to make any deposits to complete the wagering
  • You can cash out up to £50 from registration free spins, so it is higher than the standard of £40
  • Cowboys Gold comes with a 5x multiplier that can expand the value of your bet

Cons

  • The fact that you have to meet a 65x wagering surpasses the average requirement of 30x
  • It may be inconvenient for you to validate the debit card to qualify for the no deposit free spins
Rate this Bonus
Bonus Codes
New players only, no deposit required, valid debit card verification required, £8 max win per 10 spins, max bonus conversion £50, 65x wagering requirement
Slots Animal Casino logo

Exclusive

4.0

kingcasinobonus

Min. Deposit

£5

Wagering

65x W

Max. Cashout

£50

Slot Games

1000

  • 5 free spins no deposit
  • Up to 500 bonus spins on Starburst
No Deposit Free Spins Rules

To qualify for this offer, create an account and verify your debit card. To withdraw you winnings, you must first wager them 65 times. Other than Wolf Gold, the free spins cannot be used on any other slot. Also, the maximum cashout is £50.

Bonus Spins Details

Make a deposit over £10 to receive 1 spin on the Mega Wheel. Spin the Wheel and you can receive up to 500 spins on Starburst. You have to wager your winnings 65 times to withdraw. The maximum bonus conversion is set at £250.

Pros and Cons

Pros

  • You have to validate your debit card to claim this offer, which is a sign of an extra safe platform
  • There is no need to make a deposit to withdraw your winnings

Cons:

  • High wagering requirements of 65x compared to the industry average of 35x
  • You can only play the spins on Wolf Gold, as no other games are permitted
Rate this Bonus
Bonus Codes
New players only, no deposit required, valid debit card verification required, 65x wagering requirements, max bonus conversion to real funds equal to £50,
888 Casino logo
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Exclusive

4.6

kingcasinobonus

Min. Deposit

£10

Wagering

30x W

Max. Cashout

£15

Slot Games

1000

  • 30 free spins no deposit
  • up to 400 spins on making a deposit of £20
Free Spins No Deposit Promotional Terms

The spins’ earnings must be wagered 30 times. Each round’s bet is worth £0.15. The maximum amount redeemable is £15. You must claim this bonus by using the link in the email.

Rules for Spins

You can qualify for a 100% up to £100 by depositing more than £20. This means that you get to bet using £40, which translates to 400 spins. The winnings from spins must be wagered 40 times to qualify for a withdrawal.

Pros:

  • The registration spins are valid for 14 days, which is the highest value for a no deposit offer
  • You must wager the winnings 30 times, an average in the British market
  • Since this bonus do not impose any limitations, you can play any slot you want

Cons:

  • The redeemable amount is set only at £15, which is lower than the average of £35
  • The claiming process is inconvenient, since you must claim the offer via a email link
Rate this Bonus
Bonus Codes
New players only • 30 Free Spins (FS) • FS must be claimed within 48 hrs of receiving the email and expires after 14 days • FS wins are credited as bonus and capped at £15, exc. JP win • Bonus wins are capped at £500 • To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days • Wagering req. vary by game • This offer may not be combined with any other offer • Deposit balance is available for withdrawal at any time T&C Apply, 18+
NetBet Casino logo

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SBXXXTREME

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Exclusive

4.5

kingcasinobonus

Min. Deposit

£1

Wagering

40x W

Max. Cashout

No limit

Slot Games

2750

  • 25 signup spins
  • up to 500 deposit spins
Rules for Sign Up Deposit Spins

When you create an account, use the code SBXXXTREME. There is a 40x wagering requirement for these rotations. However, there is no cap on how much you can withdraw once you’ve finished it.

Spins on Deposit Bonus Rules

Fund your account with more than £50 using code NBWELCOME500 to become eligible for this bonus. The spins will be credited in batches for 7 days and come with 40x wagering. Remember that deposits with Skrill and Neteller are not available for this bonus. The offer is valid for 7 days. More information you will find in the promotional section.

Pros and Cons

Pros

  • You don’t have to wait to receive the bonus, since these no deposit spins are credited instantly
  • There is no maximum cap on how much you can cash out, therefore you can withdraw how much you want
  • The registration spins stay valid for 7 days, a timeframe that exceeds the average of 1 day

Cons

  • There is no room for diversity since the offer is valid only on a game
Rate this Bonus
Bonus Codes
New UK certified players | Valid mobile number required | no minimum deposit | 25 Starbursts XXXtreme allocated | 40 times wagering on winnings | Ends 30.09.23
Metal Casino logo
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Exclusive

4.4

kingcasinobonus

Min. Deposit

£10

Wagering

30x B+D/ 60x W

Max. Cashout

N/A

Slot Games

2800

  • 100% up to £50
  • 50 spins on deposit
Bonus details

Make a deposit of a minimum of £10 to acquire this bonus. You must roll over the deposit and the bonus amount 30 times to cash out your funds.

The 50 extra spins are only available on the Book of the Dead. Every spin is worth £0.10. The generated value of the spins has to be wagered 60 times.

You can wager up to 10% or £5, the lower one applies, of the spins generated value and bonus per bet while the offer is active. The promotion is available for 30 days.

Pros & Cons

Pros:

  • Book of Dead is a popular slot
  • You have 30 days to wager the bonus and spins generated value

Cons:

  • Only up to £50 max bonus value
  • High rollover for the spins generated value
Bonus Verdict

30 times the bonus may appear as a reasonable rollover, but you must wager your bonus and deposit sum, which doubles the requirements. More so, the spins have considerable wagering requirements of 60x.

Rate this Bonus
Bonus Codes
First Deposit Only. Min. deposit: £10, max. Bonus £50. Game: Book of Dead, Spin Value: £0.1. WR of 30x Deposit + Bonus amount and 60x Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings and bonus amount or £5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds.Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos T&C Apply, 18+
777 Casino logo
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Exclusive

4.6

kingcasinobonus

Min. Deposit

£10

Wagering

50x W

Max. Cashout

£10

Slot Games

1200

  • 77 free spins no deposit
  • up to 400 spins when making a deposit of £20
Check the Free Spins No Deposit Rules

Within 48 hours of registering, you will receive an email to claim the promotion. Additionally, 50 times must be gambled on the spin wins. The free spins no deposit are valid for 14 days and the maximum cashout is set at £10.

Spins Bonus Policy

You can receive a 100% up to £200 for a deposit of £20. You will get to bet with £40 that is the qualifying of 400 spins. This offer has a 90 days validity and a wagering requirement of 50 times. The maximum you can cash out is £500.

Pros and Cons

Pros

  • Usually, you don’t have more than 3 days to complete the wagering, but this bonus is valid for 14 days
  • You will receive this offer via email, and you have up to 48 hours to decide if you want to claim the bonus or not

Cons:

  • The fact that you can cash out only £10 from this bonus is a low amount compared to the value of the offer
  • The rollover conditions of 50x exceed the market average that stands at £30
Rate this Bonus
Bonus Codes
New players only • Claim in 48 hrs • 14 day expiry • Free Spins (FS) wins credited as bonus & capped at £10, exc. JP win • Valid for selected games only • Bonus wins capped at £500 • 50x wagering - req. vary by game- in 90 days • UK only - deposit balance available for withdrawal at any time • Withdrawal restrictions & full T&Cs apply T&C Apply, 18+
ZetBet Casino logo
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Exclusive

New casino

3.8

kingcasinobonus

Min. Deposit

£10

Wagering

35x B/35x W

Max. Cashout

N/A / £100

Slot Games

1200

  • 1st deposit – 50% up to £50 + 20 spins on 9 Masks of Fire
  • 2nd deposit – 25% up to £75 + 40 spins on Book of Dead
  • 3rd deposit – 25% up to £75 + 40 spins on Legacy of Dead
Promotional Details

The bonus has three deposits entailed, with the first deposit having a £10 minimum, with the other two having a £20 minimum deposit. Remember that this bonus can be claimed only by new players.

Both the deposit and spins have a 35x wagering requirement, and the maximum amount you can cashout is £100. Furthermore, the spins can be used only on 9 Masks of Fire, Book of Dead, and Legacy of Dead. Deposits with Skrill and Neteller are excluded.

Pros & Cons

Pros

  • It’s rare to see 100 spins granted on a deposit
  • The 35x wagering requirement on spins is lower than usual

Cons

  • The spin earnings are capped at £100
Bonus Verdict

This bonus is best tailored for slots-oriented players. Slots have a 100% wagering contribution on the deposit matches, and the spins are given for popular games in the iGaming industry. Furthermore, the 35x wagering requirements are not high nor small and are suitable for both newcomers and seasoned gamblers.

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Bonus Codes
This offer is available to players residing in United Kingdom only. New depositing players only. Min. deposit £10. Bonuses that require deposit, have to be wagered 35x. Deposits may be withdrawn before a player’s wagering requirements have been fulfilled. However, if this occurs, all bonuses and winnings will be voided/removed from the player’s account T&C Apply, 18+
The Vic Casino logo
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Exclusive

4.1

kingcasinobonus

Min. Deposit

£5

Wagering

35x D+B/35x W

Max. Cashout

£30

Slot Games

1200

  • 1st deposit: 100% up to £100 + 20 free spins on Lucky Lady’s Charm Deluxe
  • 2nd deposit: 50% up to £50 + 30 free spins on Lucky Lady’s Charm Deluxe
  • 3rd deposit: 50% up to £50 + 50 free spins on Lucky Lady’s Charm Deluxe
The Offer's Rules

Claim this welcome package by filling out the registration form and depositing at least £20. Your spins must be wagered 35 times. Also, the maximum amount that can be converted from them is £20.

Remember that deposit bonuses are subject to a 50x wagering requirement. This offer is only valid for 7 days before it expires and is removed.

Pros and Cons

Pros

  • You may cash out up to 5 times your initial bonus amount, which is quite high
  • The bonus can be used on a variety of games

Con

  • The 7-day expiry period might be too short for some players
Bonus Verdict

This promotion is ideal for British players seeking spins and bonus funds within the same promotion. Moreover, the maximum cashout for this offer is quite high.

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Bonus Codes
Welcome bonus package on first 3 deposits 1st Dep. Min £20. 50x wagering (bonus & deposit). max bonus to cash 5x. 20 Free spins. 35x wagering. Max bonus to cash £30. Claim once. See full T&Cs for 2nd & 3rd Deposit offers. T&C Apply, 18+
Pink Casino logo
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Exclusive

4.0

kingcasinobonus

Min. Deposit

£10

Wagering

35x D/ No wagering

Max. Cashout

N/A

Slot Games

578

  • 100% deposit match upwards of £150
  • 50 free spins
Details on the Bonus

This bonus is exclusive to newly registered and verified accounts. The bonus can be activated by depositing £10, and must be done so in the first 7 days of being registered. The match bonus and the spins will be given once the deposit is wagered 35 times on slots. The spins can be played only on Big Bass Splash, with £0.10 per spin. Also, all spins earnings are paid in cash. It’s also possible to make multiple deposits in order to meet the wagering requirements.

Pros & Cons

Pros

  • There are no wagering requirements for the spins
  • Live casino stakes contribute 30%

Cons

  • Bonus is given only when the deposit is fully wagered
Bonus Verdict

This bonus is suitable for all types of casino players. While it may be seen as a downside that the deposit must be wagered first, the spins and match bonus will all be paid in cash, which means no wagering requirements on the actual bonus itself.

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Bonus Codes
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-free spins 0.10p each on Big Bass Splash awarded after wagering complete, winnings paid as cash. 3 day expiry. T&C Apply, 18+
Lights Camera Bingo logo
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Exclusive

4.0

kingcasinobonus

Min. Deposit

£5

Wagering

65x W

Max. Cashout

£50

Slot Games

1900

  • 5 free spins on Fluffy Favourites
  • Up to 500 bonus spins on Fluffy Favourites
No Deposit Free Spins Rules

You must verify your debit card before redeeming these spins on Fluffy Favourites. Also, remember that a 65x wagering condition must be fulfilled before cashing out. The maximum bonus conversion is equal to £50.

Spins on Deposit Details

After depositing more than £10, you may redeem a spin of the Mega Wheel, which can grant you up to 500 spins on Fluffy Favourites. These will require 65x wagering. After completing it, you may cash out up to £250.

Pros and Cons

Pros:

  • You may try out the popular Fluffy Favourites game for free
  • The maximum cashout from this offer is £50, more than the industry’s standard

Cons:

  • The wagering condition of 65x is higher than the average
  • The redeeming process is elongated by the card verification requirement
Rate this Bonus
Bonus Codes
New players only, no deposit required, valid debit card verification required, 65x wagering requirements, max bonus conversion to real funds equal to £50 T&C Apply, 18+
QuinnBet Casino logo

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FREESPINS

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Exclusive

4.0

kingcasinobonus

Min. Deposit

£10

Wagering

No wagering

Max. Cashout

£100

Slot Games

1800

As a new member at QuinnBet Casino, you may access 50 no wagering spins on your first deposit.

Details About the Offer

You may redeem the spins by depositing more than £10 and entering the FREESPINS code. There are no wagering requirements on these spins, which means that they will be credited to your cash balance directly after.

You can use this promotion only on Reel Diamonds, with the value of £0.10 per spin. Keep in mind that the maximum cashout cap is £100.

Pros and Cons

Pros:

  • The promotion has no wagering condition, which is quite rare in the industry
  • You may cash out up to £100 after using the spins on Reel Diamonds

Cons:

  • If you forget to enter the code upon your first deposit, you will no longer be eligible for the offer
Bonus Verdict

Slots enthusiasts who don’t feel like completing wagering requirements will find this promotion appealing, as the spin winnings are added directly to the cash balance.

Rate this Bonus
Bonus Codes
New Players Only. Min. Deposit £10. Spins Available on Reel Diamonds. Value per spin is £0.10. Winnings are paid to cash balance. Use code 'FREESPINS' on registration. Spins will be credited at 4pm on the day following deposit. 7-day expiration date T&C Apply, 18+
Space Wins Casino logo

Exclusive

4.0

kingcasinobonus

Min. Deposit

£5

Wagering

65x W

Max. Cashout

£50

Slot Games

1300

  • 5 free spins no deposit on Starburst
  • Up to 500 extra spins on deposit
Rules for Free Spins No Deposit

Validate your debit card to be eligible for the promotion. Keep in mind that you must wager your spin earnings 65 times before you can withdraw. Additionally, there is a £50 bonus conversion limit.

Deposit Spins Policy

You will receive this bonus after crediting your account with more than £10. There is a wagering requirement of 65x set for this bonus. The maximum conversion stands at £250. These represent your lifetime deposits.

Pros and Cons

Pros

  • The spins are valid on Starburst, a popular slot that comes with expanding wilds and several others bonus features
  • As a matter of responsible practices, you will be required to validate your debit card, which guarantees extra security
  • The spins are not credited in batches and you will receive the full set once you qualify

Cons

  • High wagering requirements of 65x, which surpasses the standard of 35x
  • If you close the promotional pop-up upon registration, the offer will no longer be available
Rate this Bonus
Bonus Codes
New players only, no deposit required, valid debit card verification required, 65x wagering requirements, max bonus conversion to real funds equal to £50
Lord Ping Casino logo

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135FREE

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4.4

kingcasinobonus

Min. Deposit

£10

Wagering

60x W

Max. Cashout

N/A

Slot Games

3900

Bonus Details & How to Claim

Upon registration, deposit £10 and use the 135FREE bonus code to redeem your 135 extra spins. They will be available only on Book of Dead and are worth £0.1 each. Before withdrawal, you must complete a 60x wagering requirement. The promotion is available for 30 days.

Pros & Cons

Pros:

  • A significant number of 135 extra spins.
  • The offer expires in 30 days.
  • The spins are available on a popular game, Book of Dead.

Cons:

  • Spins generated value must fulfil a high 60x rollover condition.
  • You must use a promo code to redeem your bonus spins.
Bonus Verdict

As a new player, you benefit from a high number of 135 extra spins. Although you can use them only on Book of Dead, the slot game is a popular choice among British gamblers and is provided by a leading iGaming company, Play’N Go. Yet, the 60x wagering requirement may be inconvenient for some players.

Rate this Bonus
Bonus Codes
First Deposit Only. Min. deposit: £10. Game: Book of Dead, 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. T&C Apply, 18+
Ladbrokes Casino logo
Claim

4.0

kingcasinobonus

Min. Deposit

£5

Wagering

40 x B

Max. Cashout

N/A

Slot Games

1800

Deposit and play £10 for £30 bonus funds.

Info on the bonus

To get the bonus, you will first have to create an account. After completing the KYC procedure, you have to deposit and use £10 on slots, casino and live casino games. Afterwards, you will receive £30 bonus funds that have a wagering requirement of 40x. Finally, you have 30 days to use the bonus.

Pros & Cons

Pros:

  • The 30 days expiry time is long
  • The bonus can be played on almost all casino games, including live tables

Cons:

  • The £50 bonus funds given as part of the bonus are low
Bonus Verdict

Even though it has a low £30 bonus funds, this bonus is great for newcomers to the gambling scene. This is in part due to its long expiry time of 30 days, as well as the somewhat standard 40x wagering requirement.

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Bonus Codes
New Casino players only. Deposit required. Min stake £10 on qualifying games. 40x wager reqs (bonus only) on selected games. 24hrs to accept. Bonus valid for 48hrs. Certain deposit types excluded. Bets covering >70% of Roulette table excluded T&C Apply, 18+
Bzeebet Casino logo
Featured

100% UP TO £100 + 100 BONUS SPINS ON BIG BASS BONANZA AT BZEEBET CASINO

Claim

New casino

3.9

kingcasinobonus

Min. Deposit

£10

Wagering

35x B+D/35x W

Max. Cashout

N/A

Slot Games

1200

Bonus Policy

To qualify for this welcome bonus, you must deposit £20 or more. Then, you must wager the bonus funds and deposit amount 35 times within 14 days to complete the requirement. The maximum wager you can place with the funds is capped at £4.

The spins have a 24-hour validity period, in which you must wager the winnings 35 times. Be aware of the fact that bets are capped at £2.50 for those who deposit using Skrill, Neteller, and PayPal.

Pros and Cons

Pros

  • Reasonable 35x winnings wagering requirement for the spins
  • The spins are valid on Big Bass Bonanza, which is a popular slot

Cons

  • The qualifying deposit of £20 is quite high
  • The spins are only valid for 24 hours
Bonus Verdict

This first deposit bonus is decent, and it offers players a good combination of funds and plenty of spins on a popular slot among British punters. It is important to note that the minimum deposit is on the higher side, and those who deposit using Skrill or PayPal will be met with some restrictions.

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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 T&C Apply, 18+
MagicRed Casino logo
Featured

DEPOSIT £10 GET 20 FREE SPINS NO WAGERING

Claim

3.8

kingcasinobonus

Min. Deposit

£5

Wagering

No Wagering

Max. Cashout

£100

Slot Games

1500

Promotional Details

For a minimum first deposit of £10, UK players get 20 free spins at MagicRed Casino. You have 24 hours to claim and play the spins on Big Bass Bonanza. You must either use all your bonus spins or wait for them to run out to cash out your up to £100 winnings.

Pros & Cons

Pros

  • The spins have no wagering requirements
  • High cash-out value of the bonus.

Cons

  • Just 24 hours to claim the bonus
  • The spins are available only in one game.
Bonus Verdict

This promotion is great for UK players who want to try out the popular Big Bass Bonanza slot for only $10. Yet a downside would be the short 24-hour claiming period.

Rate this Bonus
Bonus Codes
Qualifying games only. Min. Deposit £10. Offer valid for 24hrs T&C Apply, 18+
Jackpotjoy Casino logo
Featured

WAGER £10 GET 30 NO WAGERING SPINS

Claim

4.1

kingcasinobonus

Min. Deposit

£10

Wagering

1x D

Max. Cashout

No limit

Slot Games

750

Promotional Details

To claim this promotion, deposit £10. You will then have to wager the deposit on any game of your choice to unlock the spins. After that, any winnings from the spins will go to your cash balance.

Pros & Cons

Pros

  • No wagering on the spin winnings
  • The minimum deposit of £10 is reasonable

Cons

  • The spins can only be used on Double Bubble
Bonus Verdict

This promotion is a good option for slots fans, as they can get a fair amount of 30 spins on a selected slot. There are no wagering requirements for the spin winnings, but you must wager your £10 deposit once to receive the spins.

Rate this Bonus
New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit.18+. Free Spins: on Double Bubble. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply. T&C Apply, 18+
bet365 logo
Claim

3.8

kingcasinobonus

Min. Deposit

£5

Wagering

No wagering

Max. Cashout

No limit

Slot Games

500

Bonus Details & How to Claim

After registering for an account, deposit at least £10. You will get 50 extra spins, which are available on 9 different slot games: Age of the Gods: Book of Oracle, Age of the Gods: God of Storms II, Big Circus!, Blue Wizard Megaways, Football! Cash Collect, Joker Rush, Legacy of the Tiger, The Walking Dead and The Walking Dead 2.

You must bet your deposit to receive the extra spins. Each spin is worth £0.1 and is subject to no wagering requirements. The offer does not mention a cashout cap and is available for 7 days.

Pros & Cons

Pros:

  • You do not have to roll over your spins generated value.
  • The promotion applies to 9 different slot games from Playtech.
  • The offer does not imply a cashout cap.

Cons:

  • You only have 7 days to use your extra spins.
  • Spins have a low value of £0.1 each.
Bonus Verdict

The offer allows British players to test 9 different Playtech slots for a reasonable £10 deposit. Although the promotion expires in 7 days, it has no wagering requirements or withdrawal limits.

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Bonus Codes
Deposit and stake £10 on eligible Casino games to get 50 Free Spins. Time limits, game restrictions and T&Cs apply. T&C Apply, 18+
Wild West Wins logo

4.3

kingcasinobonus

Min. Deposit

£10

Wagering

65x W

Max. Cashout

£50/£250

Slot Games

1400

  • 20 free spins on Cowboy’s Gold
  • 500 bonus spins on Mustang Gold
Bonus Policy

Create a new account and deposit at least £10 to qualify for the ‘Loot chest’ deal. You can get incentives from spins to Amazon vouchers by claiming this promotion.

Maximum win per 10 spins is £8. Then, you can cash out the equivalent of your lifetime deposits up to £250. Also, remember that you have to meet a 65x wagering requirement. The only slot available for this offer is Mustang Gold.

Pros and Cons

Pros

  • The number of spins is significant compared to other offers
  • £10 for a minimum deposit is quite low
  • Mustang Gold has a high payout rate of 96.53%, which increases your winning odds

Cons

  • No variety of games to use the spins on
  • The wagering condition of 65x is higher than the average
Bonus Verdict

This bonus is ideal for beginners who wish to try out slots with free spins, along with a significant number of bonus spins after depositing only £10. Despite that, the 65x wagering requirement is quite high.

Rate this Bonus
Bonus Codes
New players only, £10 min fund, 65x bonus wagering requirements, max bonus conversion to real funds equal to lifetime deposits (up to £250)
Spin Rio Casino logo

3.9

kingcasinobonus

Min. Deposit

£10

Wagering

35x B/35x W

Max. Cashout

£500/£100

Slot Games

830

  • 150% up to £40
  • 75 spins on deposit
Bonus Policy

To redeem your game bonus and receive your 25 Book of Dead Spins, you must deposit at least £10. In the second day, you will receive 25 extra spins on Starburst on the second day and other 25 spins on Twin Spin on the third day.

The game bonus must complete a 35x rollover requirement that implies a £500 cashout cap. Additionally, you must wager your spin earnings 35 times before you can withdraw up to £100. The promotion is available for 21 days.

Pros and Cons

Pros

  • Book of Dead, Starburst, Twin Spins are popular slots
  • You have 21 days to meet the wagering requirements

Cons

  • The promotion does not specify the value of the spins
Bonus Verdict

This Spin Rio Casino promotion is well-balanced because it gives new customers a fair bonus amount, with a standard rollover requirement, and a reasonable cashout cap.

Rate this Bonus
Bonus Codes
Offer only applies to new players, aged 18+. Min. deposit: ₤10. Max. bonus: ₤40. Offer valid on first deposit. Offer expires in 7 days. Unused spins expire 24hrs after being issued. Spins are on several of our best paying games as follows: 25 games on Book of Dead and 150% bonus upon first deposit. More spins are given upon login on the 2nd day - 25 spins on Starburst and on the 3rd day after the first deposit - 25 spins on Twin Spin. Winnings won with spins that require deposit have to be wagered x35. Bonuses that require deposit have to be wagered x35
Kwiff Casino logo
Claim

4.0

kingcasinobonus

Min. Deposit

£5

Wagering

No wagering

Max. Cashout

£250

Slot Games

250

Upon making your first deposit, you will be granted 200 no wagering spins on Book of Dead.

Promotional Details

To be eligible for this promotion and receive the no wagering spins, you must log into your new account and deposit at least £20.

You have five days from the date of your qualifying deposit to stake and withdraw up to £250 in real money. Note that the only available game is Book of Dead.

Pros and Cons

Pros

  • The no wagering feature on such an offer is quite rare
  • You get to cash out up to £250 after using the spins

Cons 

  • Low variety of games, as only Book of Dead is available
Bonus Verdict

This bonus is ideal for British players who want to cash out immediately after using the offer as it comes with no wagering requirements. Moreover, the maximum withdrawal is also very permissive.

Rate this Bonus
Bonus Codes
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 T&C Apply, 18+
Mr Green Casino logo
Claim

4.3

kingcasinobonus

Min. Deposit

£10

Wagering

No wagering

Max. Cashout

N/A

Slot Games

500

Make a first deposit with the casino, then wager it on Big Bass Bonanza to receive 100 bonus spins on the same slot.

Promotional Details

To be eligible for the spins, deposit at least £10 and wager the funds on Big Bass Bonanza. You can then claim 100 spins on the same game, with each spin worth £0.10.

Keep in mind that the spins have no wagering requirements, thus the funds will then be converted to your real balance. The spins have a 72 hours availability.

Pros and Cons

Pros

  • The spins are wager-free, which is a rare occurrence

Cons

  • To be eligible for the promotion, you must deposit and wager the funds on Big Bass Bonanza
Bonus Verdict

This promotion stands out from the others because of its rare, no wagering policy. Additionally, the high number of spins make this offer an excellent fit for slots players.

Rate this Bonus
Bonus Codes
18+. Play Safe. New customers only. Opt in required. 1x per customer. Min. £10 stake. Max. 100 free spins at £0.10/spin on Big Bass Bonanza only. Bonus expires 72 hours after issue. Game weighting, game, country, currency, player restrictions and terms apply. #ad T&C Apply, 18+
Jaak Casino logo

Copy:

BONUS50

Copied!

3.4

kingcasinobonus

Min. Deposit

£10

Wagering

35x B/35x W

Max. Cashout

N/A

Slot Games

1000

Bonus Details

Sign up for a new account, make a minimum deposit of £10, and redeem the bonus using the code BONUS50. The bonus funds must be wagered 35 times within 23 days of being claimed.

The spins have a 24-hour expiry date and can only be rolled over 35 times on Starburst.

Pros & Cons

Pros:

  • Spins valid on the popular slot, Starburst

Cons:

  • The £50 bonus you receive is average
  • The bonus expiry time of 23 days might not be enough for players
Bonus Verdict

This bonus is frequently encountered in the iGaming industry due to its average amount of bonus money and spins. However, the wagering requirements are reasonable and the funds can be played on several games.

Rate this Bonus
Bonus Codes
New Players Only 18+ (UK only). Minimum Deposit: £10. Maximum Offer: 100% Bonus up to £50 & 25 Spins on Starburst. Bonus & Spins winnings must be wagered 35x before withdrawal. Spins expire after 24hrs. Promo Code: BONUS50. Withdrawal terms apply. Valid until 31/12/2023. www.begambleaware.org.

Our Best Slots Welcome Bonuses for UK 2023

Compare our full list of slots welcome bonus packages on sign-up selected by Vlad George Nita and Camelia Dedu, using the most impactful criteria extracted by our experts from the bonus terms and testing processes:

Rank Slots UK Bonus Best For Min Deposit Claiming Time Wagering Req. Slots Wagering Contribution Max Cashout
#1 Mr Green Best slot bonus UK overall £10 2 min. 35x 100% No limit
#2 Dream Vegas Top slot variety £20 3 min. 35x 100% £100 (spins)
#3 Hey Spin Starburst fovers £10 2 min. 35x 100% No limit
#4 Race Casino New slot players £10 3 min. 40x 100% No limit
#5 Hot Streak Casino Fast payout slots bonus £20 2 min. No wagering (spins) 100% £200
#6 All British Casino British theme £10 2 min. 35x 100% No limit
#7 Secret Slots Slot tournaments £20 1 min. 60x (bonus) / 99x (spins) 100% £100
#8 Cash Arcade Chilli Heat fans £10 3 min. 65x 100% £250
#9 NYSpins High cashout limit £20 3 min. 30x (bonus) 100% £500
#10 Crystal Slots Returning player slot machine bonuses £10 3 min. 65x 100% £250
#11 Yako Casino No limit on Cashout £20 1 min. 40x 100% No limit
#12 Gala Spins NetEnt slots bonuses £5 2 min. 40x 100% No limit
#13 Amber Spins Wagering challenge £10 3 min. 60x (bonus) / 99x (spins) 100% £100
#14 Winner’s Magic Casino Play’n Go slots bonus UK £20 5 min. 35x 100% No limit
#15 SlotStrike Casino Flexibile bonus for slots £10 3 min. 30x 100% 4x conversion
#16 Magic Red Casino High conversion limit £20 2 min. 50x 100% £100 (spins)
#17 Jaak Casino Starburst fans’ alternative £20 5 min. 35x 100% No limit
#18 Les Ambassadeurs Online Casino High-roller slots deposit bonus £10 2 min. 35x 100% No limit
#19 Atlantic Spins Many eligible slot games £10 4 min. 35x 100% No limit
#20 Jackie Jackpot Big Bass Bonanza fans £10 2 min. No wagering (spins) 100% No limit

How we created the table

  1. Explored our top online casino collection and selected the highest rated ones
  2. Ensured they offer plenty of slots and counted them
  3. Checked the number of providers
  4. Listed the promotions that can be used on slots
  5. Prioritised no wagering free spins for your best experience

The following review sections focus and expand upon our top 5 slot welcome bonus picks. We provide you with a summary of our our testing data in an organised format. We’re confident that our expertise and thorough analysis will help you find the perfect slot welcome bonus to suit your needs. Read our full reviews of each slot site if you need more details.

#1. 100 No Wager Spins on Big Bass Bonanza for £10 at Mr Green Casino

100-No-Wager-Spins-on-Big-Bass-Bonanza-for-£10-at-Mr-Green-Casino

Overview: Our team of experts at KingCasinoBonus put Mr Green Casino’s offer to the test, and we deem it the best slots joining bonus after comparing bonus policies extensively. We were pleasantly surprised by the swift crediting of the first £10 deposit slots bonus with a Visa Direct debit card.

Who should claim this bonus: If you want to trigger bonus rounds on Big Bass Bonanza regularly, you’ll appreciate the chance to start with a hassle-free no wagering slots bonus from Mr Green.

Unique Features:

  • Seamless integration and gameplay on Big Bass Bonanza
  • Live chat support available to assist with activation

If you want an alternative offer with more bonus spins, pick a similar 10-pound deposit slot bonus like the one at Monopoly Casino. Or, explore Madslots on mobile with a free slots bonus with no deposit.

#2. Up to £300 slots sign-up bonus + 150 Spins at Dream Vegas

Up-to-£300-slots-sign-up-bonus-+-150-Spins-at-Dream-Vegas

Overview: The data speaks volumes in our reasoning to choose this tiered UK slots welcome bonus with a generous deposit match and many high-contribution casino games to play. We like that the bonus money comes in versatile packages with varying numbers of spins based on the size of your 1st deposit.

Who should claim this bonus: Slot players who appreciate a flexible sign-up bonus that caters to their deposit size will find this offer ideal.

Unique Features:

  • Slot sign-up bonus with 3 deposit tiers, each with its own set of extra spins bonuses
  • Generous £100 bonus spins max withdrawal

#3. 100% Up To £50 slots welcome bonus + 100 Starburst spins at HeySpin Casino

100%-Up-To-£50-slots-welcome-bonus-+-100-Starburst-spins-at-HeySpin-Casino

Overview: Our team took a deep dive into HeySpin Casino while testing its UK slots bonus on sign-up. The ease-of-claiming and low 35x wagering makes this package a likely candidate to the podium of our best slot bonus UK ranking for 2023.

Who should claim this bonus: New UK players looking for a solid start on NetEnt’s flagship slot will be satisfied by this low deposit first deposit bonus for slots.

Unique Features:

  • You can wager Starburst-generated wins in a wide selection of games

If you still find a 35x wager high, pick an alternative bonus from our low wagering bonus list: Grosvenor is a good pick with 10x wagering.

#4. 100% up to £100 slots bonus UK at Race Casino

100%-up-to-£100-slots-bonus-UK-at-Race-Casino

Overview: If you’re looking for a new slot site with sign-up bonus, get the most straightforward introduction from Race Casino. Make your new online slots experience as uncomplicated as possible and try a wide range of qualifying games with a boosted bankroll up to £100!

Who should claim this bonus: If you don’t mind the high £20 min. deposit, you’ll be satisfied with this no-frills slots welcome bonus. Signing up at the Race Casino is done in 3 minutes without any other complexities.

Unique Features:

  • Brand new slot site with +1400 slots and a revamped 2023 slots welcome bonus

#5. 100 no wager spins on Big Bass Bonanza at Hot Streak Casino

100-no-wager-spins-on-Big-Bass-Bonanza-at-Hot-Streak-Casino

Overview: After carefully testing Hot Streak Casino’s exceptional no wagering spins offer on several iOS and Android smartphones, our KingCasinoBonus experts can confidently recommend it to any UK slots player on-the-go. You can relish in a considerable 100 spins on Big Bass Bonanza by meeting a modest deposit and stake requirement. Claim on your mobile in less than 3 minutes!

Who should claim this bonus: Both newcomers and experienced slot players will be drawn to this offer. You get to maximise your first session and play whichever game you want with your generated wins, since the results are paid directly in your cash balance.

Unique Features:

  • A substantial number of spins
  • Staking required to unlock the spins

How to Choose Online Slots Sign-up Bonus Offers

Our iGaming-specialised contributors will provide the essential concepts of finding and selecting slots bonuses in the UK market.

  • Licensed casinos – it is critical to only pick offers from accredited online casinos. Holding a license from the UKGC is not only proof of quality but a legal requirement for functioning in the British market.
  • Audited games – beyond the fairness checks of the UK Gambling Commission, the titles featured on a platform should be verified by independent auditors, such as eCOGRA.
  • Game variety – aside from legality and fairness, you should ensure that you only choose gambling sites with a wide and varied array of activities. Slot titles are a priority, but operators should also host a catalogue of table games and live dealer titles.
  • Appealing transaction policies – your platform of choice should allow using your preferred banking options and have reasonable transaction limits. Quick operator-side processing is a must. Thus, you should always go for the fastest payout online casinos, as these perform best in banking areas.

What to pay attention to

Here are some details to enhance your means to compare UK slots bonuses.

Slots sign up bonus offers in the UK are intended to attract new customers by appealing to beginners and providing a play period that does not require payment.

However, you should still consider several qualities for these options. Firstly, you should consult the wagering conditions. Some platforms will impose stricter options. However, this is not standard, a fact that is proven by the no wagering slots bonuses we found on the current market.

Also, take some time to consider any other cashout limitations that your promotion may have. Some options will have you complete a deposit for wagered funds cashout.

All slots sign up bonus offers will require you to complete the KYC verifications. Send your data in due time, as the processing period may vary.

Additionally, slots bonuses will belong to one of two types: no deposit bonus slots funds or slots welcome bonus spins. While the former applies to more game options, promotional rounds are often more advantageous to compensate for the limited game variety.

The importance and popularity of extra spins among the best bonus slots offers make it worthwhile to devote a separate selection just for them.

Compare Different Types of UK Slots Welcome Bonuses

Once you have exhausted the no deposit slots sign up bonus offers, you must look for deposit-based online casino offers to continue your promotional play. We provide our expert analysis on each type to help you make better decisions.

200% match bonuses: best-value deposit slots bonus

The 200% match offers are especially popular with the British online gambling crowd. And there is a simple reason for that. The 200% match offers provide double your deposit in promotional funds.

Thus, they result in more play on bonus slots when compared to the industry standard 100% match slots welcome bonus options.

The more promotional funds you receive, the more complicated your playthrough completion will prove. So, a 500% slots deposit bonus might not be the ideal option from this point of view.

£5 or £10 deposit bonus slots: play with a low deposit

The best way to play online slots with a welcome bonus is by making a low investment. Parimatch lets you claim slots bonuses with £5 and they come with low wagering requirements. Check out our complete list of 5-pound deposit bonuses for slots.

A deposit of 10 pounds also falls on the cheaper side while providing enough funds to play the promo slots of your choice. £10 minimum deposit slots bonuses have set the standard for sign-up incentives, with most popular casinos like PokerStars providing up to 100 no wagering spins bonuses.

No wagering UK slots bonuses: best bang for your penny

When choosing the best no deposit bonus slots option, you should consider the cashout rate or promo value and your chances of converting it into cashable funds.

Most offers will require you to perform a rollover. A high promotional value with high wagering conditions will complicate your conversion and cashout process.

Thus, lower wagering bonuses should be your best option for no deposit bonus slots.

You may consider no wagering UK slots bonuses whose winnings turn into cashable funds as some of the most recommended options for this concern:

Latest-Added New Slots Bonuses in the UK

Our experts want you to play the latest games at new slot sites with the best bonuses. The following list gives you 4 top-rated options to start playing in 2023:

  • Deposit £20 get 75 Bonanza spins at Rhino.Bet
  • Deposit £10 Get 100 Free Spins + 100 registration spins at Luck.com
  • Deposit £10 Play With £30 + 30 Spins on Starburst at Atlantic Spins
  • Wager £10 Get £20 + 20 Free Spins at Parimatch

Despite asking for your highest deposit, the bonus spins at Rhino Bet are listed first due to their low wagering requirement of just 10x. Our experts recommend them if you like Big Time Gaming or Candy Crush-like slot games.

The all-new Luck.com slots promotion is another great choice for players who want to activate the most spins with the least investment in September. You must deposit at least 10 pounds, but before paying, you’ll activate a no-deposit free bonus for slots on registration. 100 extra spins should get you started on the right foot.

Equally good regarding wagering requirements, the next bonuses provided by Atlantic Spins and Parimatch are options you should seriously consider if you’re a fan of NetEnt games.

Top 5 Mobile Slots Bonuses in September

The world of online slots is at your fingertips with the best mobile slots casino bonuses. Play slots on your smartphone or tablet right from the browser, be it Safari, Chrome or Opera. Claim the best 1st deposit bonuses anytime, and start spinning the reels of the best slots anywhere:

  1. MobileWins: 150% up to £100 + 20 no wagering spins
  2. Rainbow Riches Casino: Wager £10 and get 30 no-wagering spins
  3. LuckyVIP: 100% up to £100 (play slots and get an extra live casino bonus)
  4. QuinnBet: Deposit £10 and Get 50 No Wagering Spins on Reel Diamonds
  5. Megacasino: Deposit £10 and get 100 Spins on Book of Dead

Enhance your mobile slot experience with these fantastic bonuses aimed specifically at those who enjoy slots on mobile devices. MobileWins is the best bonus for Android slots, and QuinnBet is equally good on these smartphones. However, if you’re an iOS casino player, check out Rainbow Riches and LuckyVIP – these apps have no game restrictions on slot bonuses.

Play the Best Slots with Bonuses and Free Spins

Slot game Provider Bet range Best Slots Bonus to Play
Starburst NetEnt £0.1-£100 Deposit £10 Play With £30 + 30 Spins on Starburst at Atlantic Spins
Book of Dead Play ‘n GO £0.1-£50 Deposit £10 Get 100 Spins on Book of Dead at Megacasino
Age of the Gods Playtech £0.2-£25 Deposit £10 Get Up To 200 No Wagering Spins at Betfred Casino
Rich Wilde and the Tome of Madness Play’n Go £0.2-£25 150% Up To £100 + 20 No Wagering Free Spins at Mobile Wins Casino
Big Bass Splash Pragmatic Play £0.1-£100 100 Big Bass Splash registration spins and 100% up to £200 at MadSlots

How we collected data

We selected some of the most popular slots in the UK, considering the bonuses claimed from our database. After that, we looked into their providers and betting limits. We used information collected from trusted online sources and the data we gathered ourselves by accessing the games. At last, we listed the platforms that let you play these slots with bonus spins and the best welcome slots bonus packages.

Slots with bonus games

Besides getting you the best promotions for slots, we recommend the best slots with bonus rounds, which refer to in-game mechanics that can improve your sessions:

  • Legacy of Dead – 10 bonus spins round
  • Cleopatra – 15 bonus spins
  • FoxPot – Fox bonus wheel feature
  • 40 Super Hot – Gambling feature
  • Monopoly – Cascade wins
  • Big Bass Bonanza – Scatters, pick-a-bonus
  • Mega Moolah – Progressive jackpot

Jackpot games

The UK bonus slots gamblers prefer the most must be the jackpot games, be they progressive, part of a network, or standard.

These titles differ from run-of-the-mill slot games by incrementally increasing the entire pot with each wager any player places. Network progressives also have several games that contribute to the same prize pool. Naturally, these bonus slots accrue staggering sums that easily go into the millions of pounds. You can find numerous jackpot games options on the best payout casinos in the UK.

Four best jackpot slots in the UK

Title Jackpot
Mega Moolah +£10 million
Jackpot Giant +£4 million
Hall of Kings +£4 million
Mega Fortune ­+£1.5 million

Get free spins on specific gaming products

British gamblers can find online slots bonus options created explicitly for them. Naturally, most options will represent free spins. The most popular option among bonus slots must be NetEnt’s hit title. Countless high-grade platforms provide Starburst no deposit free spins for UK gamblers.

Play ‘n GO is another renowned developer that hit the proverbial jackpot by launching Book of Dead. The game is a favourite of Egyptian-themed, Indiana Jones-styled slot games. And to their glee, many online casinos host Book of Dead free spins offers. You can especially expect to find such bonuses on new UK slot sites, since brand new casinos aim to attract new players by featuring bonuses linked to popular titles.

We recommend that you check out the extended Rich Wilde franchise.

Provider-based slot bonuses

If you do not want to limit your gameplay to one title, opt for provider-specific promotions, like NetEnt free spins.

These are usable on a slew of titles coming from a top developer. They offer greater variety but maybe more restraining than game-dedicated promotions.

NetEnt free spins are frequently available on summer slots, especially during Summer months, in order to motivate players to keep gambling.

Choose the highest-valued free spin package

The number of spins included in your online slots bonus batch is another area of variation. Although most gamblers would like as many rounds as possible, the situation is not as simple. Your best bet is going for the 50 slots sign-up bonus spins. Combine convenient wagering requirements and plenty of spins.

We give you options with larger batches of up to 500 free spin slot bonuses. These will keep you entertained for considerably more time.

However, you should not ignore the higher wagering conditions often applied to these promotions. They remain a worthwhile option, but consider it a commitment.

Why the UKGC banned bonus buy slots

The UKGC banned bonus buy slots to protect players from problem gambling and spending more than they can afford. Bonus buying lets players bypass randomness and pay to trigger bonuses, but it doesn’t improve win chances or guarantee wins. The UKGC saw bonus buying as encouraging players to overspend, so they prohibited this feature, allowing only randomly triggered bonuses in UK slots.

Licensed UK casinos don’t offer bonus buy slots, so players enjoy fair games with responsible gambling controls. It’s best to play at regulated UK casinos for security and accountability. Should you find yourself in a jurisdiction other than the UKGC’s, here are the best online slots with bonus buys to play:

  • Rip City by Hacksaw Gaming
  • Fishin Frenzy Megaways by Blueprint Gaming
  • Mental by Nolimit City
  • Fat Banker Slot by Push Gaming
  • San Quentin by Nolimit City
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  • Dog House Megaways by Pragmatic Play

Rules to Keep in Mind for Slots Welcome Bonuses

Rules for bonuses Industry average
Wagering requirements 35x winnings / initial promotion
Minimum deposit £10
Match and up to amount 100% up to £100
Availability period 7-10 days for no deposit/30 days for deposit
Maximum cashout £50-£100 for no deposit/£200+ for paid options

Wagering requirements

Wagering requirements are the one industry-specific condition for casino promotions. All the more concerning since users are generally uninformed in this area.

Slots bonuses will offer you promotional funds or spins that permit play without personal expenses. However, operators cannot afford to lose money only to attract gamblers. Enter wagering requirements. These have you playing real funds several times before releasing promo money as real cash.

The 35x has been found to guarantee minimum losses to the platform while still proving desirable to users. Naturally, you can find better options, but they often come with additional limitations, such as being limited to wager in a single lobby game.

Minimum deposit

This condition concerns deposit-based slots bonuses. These will only become claimable if you add funds equal to or over a certain threshold.

Match percentage and up to value

This is not to be mistaken for two other essential values for deposit offers. The match percentage relates to the number of promo funds you receive to those you add.

This matching only goes up to a value specified in the promotion title. Thus, you will only get the maximum promotional value no matter how much more you deposit over the threshold.

100% means full matching, i.e., you get to play exactly how much you deposit on promo slots. 200% means you get triple the funds, counting your deposit as well.

Availability period

Like any promotion, its utilisation is time-dependent. You will have a certain period to play on promo slots before promotional money or spins expire.

The usual standard for no deposit bonuses ranges from seven to ten days. 14 or 30 days are the better options. Paid promotions generally give you 30 to 90 days to play your promotional slots and complete the wagering.

Maximum cashout

The maximum conversion amount describes how much you can convert once the playthrough is complete in eligible online casino games.

This is another cap on the convertible to real money amounts. No deposit slots offers and a wide range of bonuses besides them often encounter such limits, while deposit options are more lenient.

Best Practices for Slots Bonus Play

  1. Play games from accredited providers, present in licensed casinos.
  2. Always start with a new no deposit offer to try out the casino.
  3. Pick your bonus for slots based on our expert verdicts.
  4. Keep your spin values at a minimum to prolong your playtime.
  5. Do not consider the wagering obligations a commitment if you cannot spare the required expenses.
  6. Only go for paid deposits if you afford them. Establish a dedicated gambling bankroll and do not exceed it.
  7. Keep tabs on the time you spend playing bonus slots, regardless of the time restrictions.
  8. There are ways to recognise gambling addiction and act in due time. Don’t gamble on your health.
  9. Do not consider playing bonus slots to be a source of revenue. While profits can occur, these instances are only outliers.

Maximizing Your Slot Bonus Based on Payments Methods

You may choose the best bonus slots on the market. However, the critical aspect of making the most of your gameplay depends on your spending practices.

Knowing the essentials of using available payment methods thus becomes a key aspect of your activity. Gambling sites will have several banking options of varying types with specific conditions.

Service availability

Card users will undoubtedly have available facets, both for VISA and Mastercard. In some instances, you can also find options like Maestro and American Express. Various online casinos offer their players the possibility to receive slots welcome bonus for adding card in the UK. A chance that will allow players to start their gambling session easier and also provide the chance to increase their winning chances.

Following the latest UKGC legislation, British gamblers can only use debit cards on gambling platforms.

e-Wallets are also popular due to their accessibility and shorter processing times. While a casino may take up to one-to-two days to confirm withdrawals for debit cards, e-wallet payment may go through within hours.

You will often find more banking options of this type, but some are clear favourites. This warrants UK players’ preference for PayPal deposit slots bonuses with low wagering, letting you withhdraw any winnings quickly with the most efficient online payment service.

Transaction limits

Each featured option will have minimum and maximum transaction options. These often coincide with deposits and transactions. Nevertheless, payments to customers are often subject to more restrictive bounds.

The ideal platform would allow both low- and high-value transactions via your preferred method.

Most gambling platforms will divide payments exceeding a certain sum, often stated to be £25000, into monthly increments.

How We Find and Rate the Best Online Slots Bonus Offers

The essentials we shared regarding bonus slots and their accompanying offers are only the start of how we review platforms and promotions.

High UK industry standards

Our main aims are to uphold a regulated and fair market and inform our readers about the ins and outs of the dynamic iGaming industry. Our approach then results from these objectives.

Our specialised reviewers will start by verifying a platform’s UKGC accreditation and its policy’s adherence to the current legal standard. Licensing and upholding various industry-specific and customer rights legislation are essential here.

Testing slots welcome bonuses

Writers will then test out the platform in ways similar to any British user. All areas and functionalities come under scrutiny. With an ever-developing database of running services, we can generate informed insights into the quality of an iGaming platform, its activities, and slots bonuses. The reviews you end up reading are the final user-friendly curation of our complete findings.

The result we intend to arrive at is informing you sufficiently to proceed with your decision with full knowledge of all contingencies. This way, the actions you choose to take are only subordinate to your desires and demands.

Vlad George Nita is the Lead Editor at KingCasinoBonus, bringing extensive knowledge and expertise of online casinos & bonuses. He applies his extensive industry knowledge into providing valuable, accurate casino data and dependable recommendations of bonuses strictly based on UK players' requirements.
Alexandra Camelia Dedu reviews & comparisons of UK online casinos are made with a critical eye and a lot of real-world experience. As a former casino player with strong research skills, she tests and rates each casino and its bonuses with great care to make sure her reviews and tips are accurate and useful for every player.