The Best Online Slots Welcome Bonus Offers in the UK in 2025

VERIFIED

Deposit £10 to Earn a 200% Bonus Up to £500 and 150 Free Spins With the Welcome Promotion

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 30x

Claim Free Spins

#Ad, 18+, GambleAware.org | First 3 deposit only. Min deposit £10. Max total bonus £500 & 150 spins. 30x wagering(dep+bonus). 30x on spins, 4x conversion, bonus and spins valid on selected slots. Full Bonus T&C

Get to test your beginner's luck as soon as possible by checking out Welcome Promo at Slotster Casino to get some help! Sign-up and deposit or more for the 1st time, and gain a 100% match bonus capped at £100 together with 100 Extra Spins on Starburst, Aloha! Cluster Pays or Finn and the Swirly Spin. Deposit for the second time and join the fun with 50% off up to £100 & 25 spins. Finally, make a Third Top-up to play with 50% maxed at £300 and even more spins, 25 extra!

VERIFIED

Claim £10 Bingo Bonus, 50 Free Spins on Fluffy Favorites & Week of Free Bingo Thanks to Welcome Deal

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 40x

Claim Free Spins

#Ad, 18+, GambleAware.org | New customers only. Min dep and wager £10. Max bingo bonus £10 valid on selected rooms. Max 50 spins valid on Fluffy Favourites. 7 days free bingo on Newbie Room only, max 6 tickets per game. Bonus: 10xwag 4xcon Spins: 40xwag... 4xcon. Full Bonus T&C

New customers receive a top-notch treatment at Bogof Bingo upon completing the registration! Take a look at this 100% Welcome Deal for example. For a deposit of just £10, you will receive a £10 Bingo Bonus and 50 Bonus Rounds on Fluffy Favorites! And that isn't all. You also are invited to join a week of Free Bingo to polish your skills!

VERIFIED

Deposit £10 at Moon Bingo for a 200% Welcome Bonus Up to £100 + 50 Free Spins

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 4x BB, 35x GB

Claim Free Spins

#Ad, 18+, GambleAware.org | New players only. 18+. Valid until further notice. Min dep £10. 200% Bingo Bonus [BB] max £100 + 50 Free Spins [FS] split on two slots, Fluffy Favourites and Enchanted Prince respectively. [FS] Split over 2 days & valid for 3... days, max win cap 0.25p per spin). FS wins granted in Games Bonus [GB] after all FS used & valid on selected games only. WR:4x Bingo Bonus; 35x GB. WR vary by game. GB wins cap: £100 + initial bonus. UK: deposit balance can be withdrawn at any time. Country restrictions apply. Full Bonus T&C

Moon Bingo's new customer offer with a 200% bingo bonus on their first deposit, up to £100, plus an additional 50 free spins. This welcome bonus is designed for first-time deposits and is allocated for use in selected Instant Games.

Sign up as a new player at Moon Bingo.
Make a first-time deposit of at least £10 to activate the 200% bingo bonus and receive your free spins.
Play with your 50 free spins over two days: 25 spins on Fluffy Favourites the first day and 25 spins on Enchanted Prince the second day.

Each free spin is worth £0.25, totalling £12.50 for 50 spins. The maximum cashout from the games bonus is £100.

VERIFIED

Join Silk Bingo & Claim 200% Sign Up Offer Up to £30 and 30 Free Spins

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 4x BB, 35x FS

Claim Free Spins

#Ad, 18+, GambleAware.org | New players only. Min dep £10. 200% Bingo Bonus max £30 + 30 Free Spins on selected game (valid for 3 days; wins cap: £4.50). Free Spins wins granted in Games Bonus ; valid on selected games only. Wagering: 4x Bingo Bonus & 3...5x Games Bonus, with wins cap: £100 + initial bonus. Full Bonus T&C

Silk Bingo offers 200% bingo bonus up to £30, supplemented with 30 free spins usable on the Irish Luck slot game. Here’s how you can claim this joining offer:

Sign up with Silk Bingo and make your first deposit of at least £10.
Receive a 200% match on your deposit as a bingo bonus, up to a maximum of £30.
Use your 30 free spins exclusively on the Irish Luck slot game within 3 days.

VERIFIED

Get 100% Games Bonus up to £50 + 100 Spins on Fluffy Favourites with XL Casino Welcome Offer

Bonus type: Deposit Bonus

Min Deposit: £20

Wagering: 35x

Claim Free Spins

#Ad, 18+, GambleAware.org | New players only. Min dep £20. 100% Game bonus max £50 + 100 free spins on Fluffy favourites ( split over 5 days; free spins vouchers valid 3 days; max win cap 0.25p per spin). Wins granted in Game bonus and valid on selected... games only. Wagering 35x game bonus; 35x free spins winnings, with wins cap: £100 + initial bonus. Full Bonus T&C

XL Casino offers a 100% welcome bonus of up to £50 plus 100 Free Spins on Fluffy Favourites for new UK depositors who commit at least £20.

Register an account at XL Casino.
Deposit a minimum of £20 to activate the 100% games bonus and 100 Free Spins.
Claim your Free Spins daily from the vouchers area, receiving 20 spins per day for five days.

Please note, each Free Spin has a maximum winning limit of 0.25p, resulting in a total value of £25 for all spins.

VERIFIED

100% First Deposit Bonus up to £50 + 50 Free Spins at Slot Ranch

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 35x

Claim Free Spins

#Ad, 18+, GambleAware.org | New players only. Min dep £10. 100% Games Bonus max £50+ 50 Free Spins on Shaman's Dream (split over 2 days; each valid for 3 days; wins cap: £7.50). Free Spins wins granted in Games Bonus & valid on selected games only. Wage...ring: 35x Games Bonus & 35x Free Spins winnings. Games Bonus wins cap: £100 + initial bonus. Full Bonus T&C

Join Slot Ranch and get a 100% match on your first deposit up to £50 and an additional 50 Free Spins on Shaman Dream's.

How to Claim Your Bonus

Create an account at Slot Ranch and log in.
Make your first deposit of at least £10 to qualify for the 100% match and 50 Free Spins.
Access your Free Spins over two consecutive days, receiving 25 spins each day.

Please note, each Free Spin is valued, and the total value of all spins is £7.5.

VERIFIED

Deposit £10 & Play With Up to 500 Free Spins on Chilli Heat at Aladdin Slots

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 65x

Claim Free Spins

#Ad, 18+, GambleAware.org | New players only, £10 min fund, max bonus conversion to real funds equal to lifetime deposits (up to £250), 65x wagering requirements Full Bonus T&C

Join Aladdin Slots today and make your first deposit to rub the Genie Lamp for a chance to win prizes, including Amazon vouchers and up to 500 Free Spins on Chilli Heat.

How to Claim Your Welcome Offer

Create an account on Aladdin Slots.
Make your first deposit.
Rub the Genie Lamp to reveal your prize.

Prizes range from Free Spins to Amazon vouchers. Free Spins can be used on selected games. Winnings from Free Spins are credited as bonus cash. Maximum cash conversion: £250 for depositors, £50 for non-depositors.

VERIFIED

200% First Deposit Bonus up to £30 Plus 30 Spins at Tip Top Bingo

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 4x BB, 35x FS

Claim Free Spins

#Ad, 18+, GambleAware.org | New players only. 200% Bingo Bonus max £30 with + 30 Free Spins on selected game (valid for 3 days; wins cap: £4.50). Free Spins wins granted in Games Bonus and valid on selected games only. Wagering: 4x bingo bonus & 35x Gam...es Bonus, with wins cap: £100 + initial bonus. Full Bonus T&C

Tip Top Bingo 1st deposit offer with 200% bingo bonus up to £30 along with 30 Free Spins on Enchanted Prince, valid exclusively for new UK players. To begin, deposit a minimum of £10 to qualify for this offer. Once your deposit is processed, the bingo bonus will automatically be credited to your account, enabling you to enjoy various games.

To claim the Free Spins, access the designated slot game, Enchanted Prince, where the spins will be ready for use. After utilizing your Free Spins, any winnings are transformed into games bonus funds at a rate of 100 points per £1, capped at a maximum of £4.5.

WIzard Slots Turbo Reel: Unlock Up to 500 Free Spins at Wizard Slots

Bonus type: Deposit Bonus

Min Deposit: £100

Wagering: 65x

Claim Free Spins

#Ad, 18+, GambleAware.org | Min deposit £100, max bonus conversion to real funds equal to lifetime deposits (up to £250). 65x wagering requirements. Full Bonus T&C

Unlock the amazing Turbo Reel and spin to win incredible prizes! Wizard Slots gives you the chance to unlock the Turbo Reel and win between 50 and 500 free spins on selected online slots when you make a qualifying deposit.

How to Claim Your Turbo Reel Bonus

Register or log in to your account at Wizard Slots.
Deposit £100 or more to activate the Turbo Reel.
Spin the Turbo Reel for a chance to win 50 or 500 free spins.

Each free spin is valued at £0.10, totaling up to £50 or £5. The maximum cashout from bonus winnings is £250. The bonus has a 65x wagering requirement and expires within 30 days.

VERIFIED

New Live Casino Offer

21.co.uk Casino Offers 100% Deposit Match Up to £50 + £6 Free Live Casino Chips

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 40x

Claim Bonus

#Ad, 18+, GambleAware.org | New players only. 7 days to opt in and deposit £10+ with a further 7 days to wager 40x on Live casino. Wagering contributions vary. Max cash reward: £50. £6 bonus has 3 day expiry to use on selected Evolution games. 10 x winn...ings from £6 bonus. Full Bonus T&C

Get a 100% sign up bonus up to £50 and an additional £6 in free Live Casino chips.

How to Claim:

Register a new account at 21.co.uk Casino.
Visit the "My Offers" page and click on “Opt in and Deposit”.
Deposit at least £10 to activate the offer and start enjoying the games.

The £6 bonus is provided in £2 increments over three days, usable on specific Evolution games. You need to complete a 40x wagering requirement within 7 days on eligible live casino games to convert your bonus to cash. Additionally, the maximum cashout from each £2 chip is £50.

VERIFIED

Claim 1000% Welcome Offer Up To £2000 At Wonga Games!

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 65x

Claim Bonus

#Ad, 18+, GambleAware.org | New players only, £10 min fund, £2,000 max bonus, 65x Bonus wagering requirements, max bonus conversion to real funds equal to lifetime deposits (up to £250). Full Bonus T&C

Wonga Games casino welcome bonus suggests an opportunity to receive a 1000% match-up bonus, escalating to £2000. This promotion is available for the first depositors who partake in the Bonus Wheel.

How to claim this welcome offer:

Register at Wonga Games, confirming your status as a new player aligns with the welcome bonus criteria.
Deposit a minimum of £10 into your account. This action qualifies you for a chance to spin the Bonus Wheel.
Spin the Bonus Wheel to discover the bonus segment you've won, potentially reaching 1000% up to £2,000.

VERIFIED

15 Wager-Free Spins

100% Match Up Bonus Up To £100 on 1st Deposit + 15 Wager-Free Spins on Turn Your Fortune

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 50x

Claim Free Spins

#Ad, 18+, GambleAware.org | New Players Only. Opt-in Required. Wagering occurs from real balance first. 50X wagering the bonus. Contribution may vary per game. Available on selected games only. The wagering requirement is calculated on bonus bets only. ...No wagering requirement for free spins. Bonus is valid for 30 days / Free spins valid for 7 days from issue. Max conversion: 3 times the bonus amount or from free spins: £20. Excluded Skrill deposits. Full Bonus T&C

Get ready to compete with locals right after making your account thanks to Welcome Promo Code 15TF! Make an eligible real money deposit and and receive 15 No Wagering Free Spins on Turn Your Fortune + 100% Sign Up Bonus Up To £100.

VERIFIED

Deposit £10 & Get 50% Bonus up to £50 + 20 Free Spins on 9 Masks of Fire

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 35x

Claim Free Spins

#Ad, 18+, GambleAware.org | 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 req...uirements have been fulfilled. Full Bonus T&C

Claim ZetBet's online casino first deposit bonus with a 50% match up to £50 and 20 free spins on 9 Masks of Fire when you deposit £10. By depositing the minimum of £10, you’ll receive £5 in bonus funds for a total balance of £15, plus the 20 free spins, valued at £0.10 per spin, adding £2 worth of spin value to your balance. The total value for your £10 deposit comes to £17.

For larger deposits, you can unlock the full £50 bonus by depositing £100, making this offer highly flexible. Winnings are capped at £100. The bonus is available to UK players only.

VERIFIED

Get to Spinning and Winning With Up to £500 + 150 Spins From the 200% Welcome Bonus

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 30x

Claim Free Spins

#Ad, 18+, GambleAware.org | First 3 deposit only. Min deposit £10. Max total bonus £500 & 150 spins. 30x wagering(dep+bonus). 30x on spins, 4x conversion, bonus and spins valid on selected slots. Full Bonus T&C

The first deposit bonus arrived and it's 3 steps away! Make the first step by registering and creating an account on the website. Complete the second step by depositing £10+ in real money. And finally, your last step is enjoying the free 100% match-up, capped at £500 + 100 FS on some of the best games Starburst, Aloha! Cluster Pays or Finn and the Swirly Spin! And that's only the first deposit reward! Make your Second Top-up and play with a 50% match bonus maxed at £500 and 25 Bonus Rounds as a nice extra. Then deposit for the Third time for another 50% boost, this time up to £300 and 25 spins more. Have an amazing time with these!

VERIFIED

NO WAGERING

30 Free Spins on Beat the Beast: Krakens Lair for £10 Deposit

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: No Wager

Claim Bonus

#Ad, 18+, GambleAware.org | First deposit only. Min spend £10. Spins on Beat the Beast: Kraken’s Lair slot game. Spins worth 10p. Full Bonus T&C

Register: Create a new account on MrQ.
Deposit: Make a single deposit of £10 using code BEAST.
Play: Spend £10 within 12 hours on qualifying games to receive your free spins.

Each free spin is valued at 10p, with a total value of £3. Free spins must be used within 48 hours of being credited. Maximum cashout is uncapped.

Duelz Casino Welcome Offer: 100% Bonus Up To £100 + 100 Free Spins on Book of Dead

Bonus type: Deposit Bonus

Min Deposit: £20

Wagering: 45x

Claim Free Spins

#Ad, 18+, GambleAware.org | New players only. Min deposit: £20. Max £100 bonus. Max bet with active bonus: £2. Wagering required 100% match bonus: 30x deposit + bonus. Max win from welcome bonus: £500. 100 Free Spins are given out 20 per day on Book of ...Dead for 5 days in a row. Max Free Spins winnings: £100. Free Spins winnings credited as bonus money with 45x wagering & 3 days expiry. Deposit bonus & Free Spins wins are forfeited 30 days after bonus is credited if the wagering is not met. Game weighting and restrictions apply. Play Responsibly Full Bonus T&C

New players at Duelz Casino can receive a 100% match bonus of up to £100 on their first deposit of £20 or more. With a maximum bet of £2, while the bonus is active, the bonus must be wagered 30 times the deposit and bonus amount. The maximum win from the welcome bonus is £500. Additionally, players will receive 100 free spins on Book of Dead, 20 per day for 5 days, with a maximum winnings of £100. The free spins winnings are credited as bonus money with 45x wagering and a 3-day expiry. The deposit bonus and free spins winnings will be forfeited 30 days after the bonus is credited if the wagering requirements are not met

VERIFIED

Rainbow Spins Welcome Offer: Get Up to 500 FS on 9 Pots of Gold

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 65x

Claim Free Spins

#Ad, 18+, GambleAware.org | New players only, £10 min fund, free spins won via mega reel, max bonus conversion to real funds equal to lifetime deposits (up to £250), 65x wagering requirements. Full Bonus T&C

Rainbow Spins offers an exclusive welcome bonus for new players. Spin the Mega Reel upon your first deposit for a chance to win up to 500 Free Spins on 9 Pots of Gold or Amazon vouchers.

How to Claim Your Bonus

Register a new account on Rainbow Spins.
Make a minimum deposit of £10.
Spin the Mega Reel to win your prizes, which include Free Spins on selected games or Amazon vouchers.

Each free spin is worth £0.10, with a total value of up to £50 for 500 Free Spins. The maximum bonus conversion to real funds is equal to your lifetime deposits, up to £250. Wagering requirement of 65x applies.

VERIFIED

Get SpinShake Welcome Bonus of Up to £50 + 25 Spins on Starburst

Bonus type: Deposit Bonus

Min Deposit: £20

Wagering: 40x

Claim Free Spins

#Ad, 18+, GambleAware.org | New players only. Min deposit £20. 40x wagering applies to match up bonus. Offer valid for 24 hours. 25 Spins on Starburst - 40x wagering applies on Spins. Full Bonus T&C

Dive into the generous world of Spin Shake Casino and grab your first and most important perks from the Welcome Bonus! Register and deposit at least £20 and you will instantly qualify for a 100% Match Bonus up to £50 max and 25 Extra Spins on the Starburst slot!

VERIFIED

Jackpot Slot Casino Sign Up Offer – 200% Bonus up to £500 + 150 Extra Rounds

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 30x

Claim Free Spins

#Ad, 18+, GambleAware.org | First 3 deposit only. Min deposit £10. Max total bonus £500 & 150 spins. 30x wagering(dep+bonus). 30x on spins, 4x conversion, bonus and spins valid on selected slots. Full Bonus T&C

Hit your first jackpot at Jackpot Slot Casino with this Welcome Offer! To use its benefits, newcomers need to register and deposit £10+. Once they meet the requirements, their funds will be boosted by 100% up to £100 max and they will get 100 Bonus Rounds as an extra. And that's only the First Deposit reward! Make your Second Top-up to claim a 50% match up to £100 as well, and 25 FS. Final part of the bundle will come on your Third Deposit. It includes 25 Free Spins and a 50% Bonus maxed at an impressive number of £300! Bonus spins are available on Starburst, Aloha! Cluster Pays or Finn and the Swirly Spin.

VERIFIED

Receive a 1st Deposit Bonus Worth Up to 500 Spins on Vikings Go Berzerk by Topping-Up £10

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 65x

Claim Free Spins

#Ad, 18+, GambleAware.org | New players only, min deposit £10, £8 max win per 10 spins, max bonus conversion equal to lifetime deposits (up to £250), 65x wagering requirements. Full Bonus T&C

Brace yourself before a brand new adventure and use this first deposit offer before heading forward. Register and just a mere deposit of £10 will give newcomers a chance to spin on the Mega Reel and potentially win a 500 max Extra Spin Bonus for Vikings Go Berzerk game!

VERIFIED

Bettarget Welcome Offer: Up to 200 Free Spins on Book of Dead, Starburst, and Fire Joker

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 35x

Claim Free Spins

#Ad, 18+, GambleAware.org | New UK depositing players only. 200 spins are issued on selected games as follows: 50 on 1st deposit (min. £10), 50 on 2nd deposit (min. £20) and 100 on 3rd deposit (min. £20). Winnings from spins are bonus with wagering requ...irements 35x. Spins expire after 24 hours. Bonus expires after 21 days. Full Bonus T&C

VERIFIED

Royal Bets Sign Up Bonus

Deposit £10 & Play With 100 Free Spins + 100% Bonus Up To £100

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 30x

Claim Free Spins

#Ad, 18+, GambleAware.org | First 3 deposit only. Min deposit £10. Max total bonus £500 & 150 spins. 30x wagering(dep+bonus). 30x on spins, 4x conversion, bonus and spins valid on selected slots. Full Bonus T&C

No better way to an easy profit! Just register and deposit the minimum £10 using the Royal Bets Casino Welcome Bonus. This way you receive 100 free rounds on the popular slots Starburst, Aloha! Cluster Pays or Finn and the Swirly Spin. But wait! You're also getting a 100% match capped at £100 as your main treat.

Fever Slots Welcome Offer – Win up to 500 Free Spins on Starburst!

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 65x

Claim Free Spins

#Ad, 18+, GambleAware.org | New players only, £10 min fund, max bonus conversion to real funds equal to lifetime deposits (up to £250), 65x wagering requirements. Full Bonus T&C

Unlock 500 Free Spins on Starburst or other prizes by spinning the Mega Reel at Fever Slots. Make your first deposit to receive a complimentary Mega Reel spin, where you can win anything from Free Spins to Amazon Vouchers.

To claim this bonus, deposit a minimum of £10 to receive a free Mega Reel spin. Subsequent deposits of £20 or more will also qualify you for additional spins, provided there are no pending withdrawals. The Mega Reel offers various prizes, and Free Spins are valid on selected games. Notably, any winnings from Free Spins are credited as bonus funds subject to 65x wagering requirements.

Minimum deposits start at £10, and the maximum bonus conversion is up to the value of your lifetime deposits, capped at £250. Check you fulfill all wagering requirements before cashing out, as failing to do so will forfeit remaining bonus funds. Remember, bonus funds cannot be withdrawn directly.

VERIFIED

Claim Up to 500 Free Spins on Fluffy Favourites with a £10 Deposit Sign-Up Offer at Bingo Fling

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 65x

Claim Free Spins

#Ad, 18+, GambleAware.org | New players only, £10 min fund, free spins won via mega wheel, 65x wagering requirements, max bonus conversion to real funds equal to lifetime deposits (up to £250). Full Bonus T&C

Unlock up to 500 Free Spins on Fluffy Favourites with Bingo Fling's exclusive sign up bonus! Start with a £10 minimum deposit to spin the Mega Reel and potentially win up to 500 Free Spins. With each spin valued at £0.10, the maximum reward can equal £50 in spin value, adding a substantial boost to your gaming.

Terms cap the maximum withdrawal from bonus funds at £250.

VERIFIED

PlayJango Casino Sign Up Offer – 100% Up to £25 and 25 Free Spins on Book of Dead

Bonus type: Deposit Bonus

Min Deposit: £10

Wagering: 30x GB, 60x FS

Claim Free Spins

#Ad, 18+, GambleAware.org | Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Max. Bonus £25. Maximum amount of Free Spins is 25. Game: Book of Dead, Spin Value: £0.10. 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. Bonuses do not prevent withdrawing deposit balance. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonuses do not prevent withdrawing deposit balance. Bonus Policy applies. Full Bonus T&C

PlayJango Casino offers a sign up bonus of 100% up to £25 plus 25 free spins for Book of Dead.

How to claim:

Create an account at PlayJango Casino and log in.
Make your first deposit to qualify for the 100% match bonus.
Receive your registration bonus and free spins, credited automatically to your account.

The free spin value is £0.10, with a total value of £2.50 for all spins. The maximum cashout allowed is £25. Wagering requirements are 30x for the deposit plus bonus amount and 60x for free spin winnings. Bonus funds and free spins must be used within 30 days.

Best UK Slots Sign Up Bonus Offers