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TOP Slot Sites Bonuses for UK Players

slot bonuses

Online gambling has become one of the most exciting ways to spend free time and earn money simultaneously. With numerous casinos offering a variety of bonuses, it might get overwhelming to choose the right one. In this article, we’ve curated a list of the best slot bonuses offered by UK sites in 2023.

Before getting into the details, let’s first understand what slot bonuses are. Slot bonuses can be free spins, deposit bonuses or match bonuses offered by online casinos to attract new players or retain existing ones. They are essentially extra benefits that players can use on slot games. These bonuses vary from casino to casino in terms of their size, conditions, and game restrictions.

What Makes a Good Slot Bonus?

Choosing a slot bonus depends on individual preferences and playstyle. However, some general features make a slot bonus attractive:

  • High Match Percentage: The higher the match percentage, the more bonus money you get for your deposit. Go to SPIN&WIN, for the best deposit bonus to use on slot video games: you get up to £500 (the biggest offer). Use promo codes to claim bonuses.
  • Free Spins: Some casinos offer free spins in addition to or as the main part of the slot bonus. We recommend these casinos for free spins slot bonus: bet365 (50 FS), Grosvenor (50 FS), Spin Rio (100), Lucky Pants and other top 100 free spins sites.
  • Low Wagering or No Wagering Requirements: Lower wagering requirements are always better as it means you will need to play through the bonus less times before you can withdraw any winnings. For the best 200 no wager spins bonus, visit Betfred casino.

TOP 6 Best Slot Bonus Sites

Which slot sites offer the best bonuses in 2023? Rialto, SpinRio, The Vic are among the top casinos with total up to 700 in deposit bonus, and 400 spins in addition. Take a look:

Rialto Casino

Rialto Casino is known for its generous bonuses. They offer a 100% match bonus up to £300 plus 200 free spins, giving players ample opportunities to try their luck at various slots fron NetEnt and Microgaming. Enjoy popular slot games like ‘Starburst’ and ‘Book of Dead’, or delve into the fun with progressive jackpot slots such as ‘Mega Moolah’.

Spin Rio Casino

At Spin Rio Casino, new depositing UK players can claim a welcome bonus of up to £200 plus 100 Free Spins, providing an exciting start for players. With this bonus, you can try classic three-reel slots like ‘Fruit Fiesta’ or video slots such as ‘Gonzo’s Quest’ for an immersive gaming experience.

The Vic Casino

New Vic Casino offers a substantial bonus of up to £200 and 100 free spins. Using the code CGVIC increases your chances of winning. Here, you can explore a wide range of slot types, from themed slots like ‘Cleopatra’ to feature-rich options such as ‘Thunderstruck II’.

Betfred Casino

Betfred Casino stands out with its unique offer – stake £10 and get 200 wager-free spins. This means that any winnings from these spins are immediately available for withdrawal. Test your luck with popular slots like ‘Rainbow Riches’ or enjoy the high-stakes excitement of ‘Age of the Gods’ progressive slots.

Betway Casino

Betway Casino offers a very appealing deal for players: 100 Free NO Wager Spins. This means that any winnings from these spins can be withdrawn instantly, with no wagering requirements. Dive into a vast array of slot games, from classic three-reel games like ‘Double Diamond’ to innovative video slots like ‘Immortal Romance’.

Barz Casino: New Slot Games with a Hefty Bonus

Barz Casino is not just another name in the online gambling world, it’s a portal to an array of newly launched slot games that come with a generous welcome bonus of £300 and 50 free spins. Take a thrilling journey through the Wild West with ‘Bison Gold’ by Net Gaming, or let the ‘Drop’em’ game by Hacksaw Gaming keep you on the edge of your seat. For those who enjoy a blend of fantasy and adventure, ‘Book Of Justice Athena’s Glory’ by Spinomenal is a top pick.

If you are in the mood for some underwater fun, ‘Lobster Bob’s Crazy Crab Shack’ by Pragmatic offers a splash of excitement. Alternatively, let the ‘Sweet Alchemy 100’ by PlaynGo satisfy your sweet tooth while you spin for wins. With such a wide selection of new games to explore, Barz Casino’s generous bonus offers a perfect start for your thrilling casino adventure.

Get More Bonuses to Play Slots With

  • Vic Casino Bonus: Get £200 + 100 Free Spins
    5.0 rating based on 1 rating

    New players only. Code CGVIC required on a minimum deposit of £20 for up to £100 bonus + max 20 Free Spins valid for 7 days. Bonus playable on *selected slots*. Wagering requirements on bonus is 50x (deposit+bonus), max convertible rate from bonus is 5x. Free spins & winnings playable selected *Lady’s Charm Deluxe*, wagering requirements on free spins is 35x, maximum convertible amount from free spins is £30. 18+ only. Valid until further notice. Full T&C’s apply.

    | Read The Vic review
  • Lucky VIP Casino: £100 First Deposit Match + Live bonus wheel up to £7
    5.0 rating based on 1 rating

    Minimum 1st dep of £20, use code CGLUCKY to get £100% up to £100 on selected match slots; 40x wagering requirement (Dep + Bonus) & MCR x5 for Bonus + Guaranteed Live bonus wheel up to £7. Live Bonus and Live Bonus Winnings are playable on selected Live Games. 20x WR, convertible to real cash x5 bonus amount. Full T&C’s apply.

    | Read Lucky VIP review
  • 10bet Casino Bonus: Get £250 Deposit Match
    4.7 rating based on 1 rating

    New Customers only; Use code CASINO10 upon deposit (no Skrill/Neteller); Wager bonus 50x to release bonus winnings; Valid 30 days; Stake contribution and payment method exclusions apply; T&C apply; Get app!

    | Read 10bet Casino review
  • Barz Casino Offer: Get £300 and 50 Bonus Spins
    4.7 rating based on 1 rating

    New Players Only. Min. deposit £20. Max. bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Winnings from Bonus spins credited as bonus funds and capped at £20. Bonus funds expire in 30 days, unused bonus funds will be removed. Welcome Offer is 100% match up to £300 plus 50 bonus spins on your 1st deposit. Bonus funds are separate to Cash funds, and are subject to 40x wagering the total bonus & cash. Only bonus funds count towards wagering contribution. Affordability checks apply. Terms apply.

    | Read Barz Casino review
  • bet365 Casino Bonus: Claim 50 Free Spins.
    5.0 rating based on 1 rating

    The Bet365 bonus code for casino is 365GMBLR. New customers only. Min deposit £5. Bet Credits available for use upon settlement of bets to value of qualifying deposit. Min odds, bet and payment method exclusions apply. Returns exclude Bet Credits stake. Time limits and T&Cs apply. The bonus code 365GMBLR can be used during registration, but does not change the offer amount in any way. Get casino app, start playing!

    | Read bet365 Casino review
  • Betfred Casino Bonus: Get 200 Free Spins with no wagering
    5.0 rating based on 1 rating

    New Casino customers only. £10 min transfer & stake on Casino slots within 7 days. Max bonus 200 Free Spins on selected games. Free Spins expire after 7 days. iOS app restrictions may apply. E-Wallet & Pre-Paid card restrictions apply. SMS validation may apply. Download free casino app (Android, iOS).

    | Read Betfred Casino review
  • Buzz Casino Bonus: 200 Free Spins + £5 Club slots voucher
    4.8 rating based on 1 rating

    New 2023 casino. New players only. Deposit & stake £10 on slots get 200 x 10p Fire Blaze™ Blue Wizard Megaways™ spins (x20 WR). Full T&Cs apply.

    | Read Buzz Casino review
  • FairgroundSlots Casino: Win up to 500 Free Bonus Spins
    4.6 rating based on 1 rating

    New players only, min deposit £10, £2,000 max bonus, max bonus conversion equal to lifetime deposits (up to £250), 65X wagering requirements and full T&Cs apply.

    | Read Fairground Casino review
  • Griffon Casino Bonus: up to 200 Free Spins
    4.7 rating based on 1 rating

    New UK depositing players only. 200 spins require 3 deposits of min. ‎£20 each and are issued as follows: 50 on 1st deposit, 50 on 2nd deposit and 100 on 3rd deposit. Spins are issued on selected games. Winnings from spins are bonus with wagering requirements 35x. Spins expire after 24 hours. Bonus expires after 21 days.

    | Read Griffon Casino review
  • Grosvenor Casino Bonus: 150% Match Up to £30
    4.8 rating based on 1 rating

    New customers only. Minimum deposit £20. Maximum non-withdrawable bonus £30. Playable on selected games only. 30x wagering required. Expires within 30 days. Maximum win £2,000. Full T&C Apply.

    | Read Grosvenor Casino review

5 Best Slot Bonuses in 2023 for UK

CasinoBonus OfferCode RequiredWagering
Rialto Casino100% match up to £300 + 200 Free SpinsCGRIALTO40x bonus & deposit
Spin Rio CasinoUp to £200 + 100 Free SpinsNo Code35x deposit & bonus
The Vic CasinoUp to £200 + 100 Free SpinsCGVIC50x deposit+bonus
Betfred CasinoStake £10, Get 200 Wager-Free SpinsNo CodeNo wagering requirements
Betway Casino100 Free NO Wager SpinsNo CodeNo wagering requirements

With the information above, you can make an informed decision about which slot bonuses to claim. Remember, the best slot bonus for you is the one that suits your budget and playing style the most. Here is a list of top high stakes slot casinos, if you are interested.

UK Slot Bonus Sites
Barz is one of the top UK Slot Bonus Sites with 47+ new games, drop wins and popular slots. Register to get a 100% welcome bonus up to £300 and 50 extra spins. Terms apply.

TOP Slots For Bonuses

The best slots for bonuses vary greatly depending on the player’s preferences, the bonus features of the slot, the game’s Return to Player (RTP) rate, and the volatility. Here are a few top examples:

  1. Starburst – This is a classic slot game developed by NetEnt and is popular for its bonus features. Starburst comes with expanding wilds that can lead to re-spins. It is often part of the welcome bonuses offered by many online casinos. For example, at Spin Casino and Moon Games, new players can get 100 free spins on Starburst. Here is a full list of the best RTP slots for winning real money.
  2. Book of Dead – A famous slot game developed by Play’n Go, it’s well-known for its free spins feature, which includes an expanding symbol. The game is part of the bonus offer at Bet365 where new players can get 50 free spins.
  3. Gonzo’s Quest – Another brilliant slot game from NetEnt. It is unique for its avalanche feature, where winning symbols are replaced with new ones, allowing for multiple wins on a single spin.
  4. Mega Moolah – Developed by Microgaming, this slot is famous for its massive progressive jackpot. Some online casinos, like Jackpot City, offer free spins on this slot as part of their welcome package.
  5. Age of the Gods – This is a series of slots developed by Playtech, all tied to the same four progressive jackpots. The slots in this series often come with their own unique bonus features.

Try these best real money slot sites like FairGround, and claim low wagering casino bonuses.

New Slot Offers

Slot players for real money in the UK are in for a treat with an exciting array of new slot bonuses from the top 10 new online casinos. Buzz Casino, a newcomer launched in 2023, entices players with a generous offer of 200 free spins, while Latest Rialto Casino UK is boosting the stakes with a New Player Bonus of up to £100 and 50 free spins. New The Vic Online Casino is drawing in the crowds with a deposit bonus of up to £200 plus 20 free spins. Moreover, Spin & Win UK Casino is making a grand entrance with offers up to £500. And if you’re on the lookout for the best new slot site, Lucky Pants is a sure bet, offering a £200 deposit bonus and 100 free spins.

Here is a complete list of the best new UK casinos to play slot games with good minimum deposit offers, try Mad Slots and Pub Casino, launched in 2023.

Bonuses for Mobile Slots

On the mobile gaming front, there’s no shortage of spectacular slot offers, either. Bet365’s mobile app has topped the charts with its user-friendly interface and fabulous offer of 50 free spins. The Grosvenor Casino app steps up the game with a lucrative offer where you deposit £20 and play with £50. The Betfred Casino app comes in strong, offering an enticing deal: Bet £10 and get 100 free spins. The beauty of these mobile casino apps is their high compatibility across iOS and Android devices, making it easy for players to spin the reels anytime, anywhere. These incredible offers make mobile gaming an increasingly attractive option for both newbie and experienced slot players.

View more casino apps for UK here, such as Grosvenor app or bet365 mobile casino with new videoslots and 50 free spins bonus.

Online Slots Bonus FAQs

What is a slot bonus?

A slot bonus is an extra benefit provided by an online casino that players can use on slot games. These bonuses can come in different forms such as free spins, deposit bonuses, or match bonuses.

What is a wagering requirement?

A wagering requirement is a condition set by online casinos that a player must meet before they can withdraw any winnings from their bonus. For example, if a casino offers a £100 bonus with a 35x wagering requirement, you will need to bet a total of £3500 before you can withdraw any winnings.

What is a match bonus?

A match bonus is a type of bonus where the casino matches a percentage of the player’s deposit. For instance, a 100% match bonus up to £200 means that if you deposit £200, the casino will give you an additional £200 as a bonus.

What is a free spin?

A free spin is a type of bonus that allows players to spin the reels on a slot game for free. The number of free spins offered varies from one casino to another.

What is the best slot bonus?

The best slot bonus depends on the player’s preferences. Some might prefer a high match bonus, while others might prefer bonuses with low wagering requirements or free spins. It’s best to choose a bonus that aligns with your playing style and budget.

Are there codes for slot bonuses?

Yes, some online casinos require a code to claim the slot bonus. However, many bonuses can be claimed without a code.

Can I withdraw winnings from my slot bonus immediately?

It depends on the terms and conditions of the bonus. If there are wagering requirements, you will need to meet these before you can withdraw your winnings. Some casinos offer wager-free bonuses, allowing immediate withdrawal of winnings.