Best Slot Bonus Sites - December 2025
Slot Offers (or a Slots Bonus) are the most common welcome packages offered by online slot sites and casinos for new players. Here, we list list the best slot bonuses including sites with a deposit 10 get bonus!
read more less
Also known as ‘Welcome Bonuses,’ they usually comprise a percentage match of the initial deposit made by a new player.
This often amounts to at least 100%, although many operators push the envelope by offering up to 200%. Extras such as bonus spins are often included in the best casino deposit bonuses as well.
However, such incentives have become so widespread in the gambling industry that it can be difficult to identify the ones which offer the best ‘value’.
To help you in this task, WDW Bingo has compiled a list of the most competitive welcome deposits currently available.
We’ve also included advice about some of the things to keep in mind when searching for the best casino welcome bonuses, such as wagering, cash-out rules and time-limits. Scroll down to find out more.
-
BETVICTOR is the original sports betting and casino site from the operators of great brands like talkSPORT BET, Parimatch & Heart Bingo. Enjoy our exclusive welcome package!
*18+ New customers only. Opt in, deposit, and wager a min of £10 on selected games within 7 days of registration. Get a 3x £10 Casino Bonus Funds for selected games (40x wagering) and 30 Free Spins on Fishin' Frenzy. Max withdrawal £750. T&Cs apply, see below. gambleaware.org | Please gamble responsibly *18+ GambleAware.org Please play responsibly #ad
-
Star Wins is a fun filled Jumpman adventure, inspired by the cheeky and fun loving Daily Star.
*New Players only. 1st, 2nd and 3rd ever deposit: spin multiplier wheel and win a Matchup Bonus up to 10X your deposit amount (£2,000 max bonus), £10 min fund for all 3 offers, 65x Bonus wagering requirements, max bonus conversion to real funds equal to lifetime deposits (up to £250) full T&Cs apply *18+ GambleAware.org Please play responsibly #ad
-
Grosvenor Casino is the online slots site version of one of the UK's most famous casino chains. This classy but modern online casino has a big welcome bonus to greet you at the door.
*New Customers by invite only. Min Deposit £20 (exc PayPal & PaySafe). Max Bonus £30 (30x wagering & max wins £2000) & 100 Free Spins @10p playable on selected games (1x wagering on wins, max wins £500).*T&Cs Apply *18+ GambleAware.org Please play responsibly #ad T&C's Apply
-
10bet is a slots and sportsbook site operated by Blue Star Planet. This independent slots site is unique in the UK market and we have an enormous exclusive bonus.
*New bettors registered from selected affiliate sites. Select bonus at signup or use code 10CASINO. Wager bonus 30x to release bonus winnings; Valid 30 days; Stake contribution, games and payment method exclusions apply; T&C apply; 18+ *18+ GambleAware.org Please play responsibly #ad
-
Cosmic Spins is a recently relaunched casino site which was migrated to Grace Media from a previous platform provider. The site has a match deposit and free spins combo bonus.
*First deposit only. Min deposit £10. Max 100% bonus match. Max £100 in bonus funds. Based on winnings from first deposit only. bonus funds credited within 7 days after deposit. 40x wagering, 4x conversion. Max one claim. Full T&Cs apply. *18+ GambleAware.org Please play responsibly #ad
-
Playluck is a newly launched Aspire slots site with a plethora of games to enjoy and a brilliant blue design. There are hundreds of slots including from Play 'n Go and NetEnt.
*18+. New Players Only. Min. deposit: £20. Offer valid on the first deposit. Wagering Requirement: 35x. The extra spins will be added on the next day. No wagering requirements for the extra spins. Spins are credited in Big Bass Secrets of The Golden Lake. Spins expire after 24 hours. Promotion available for 72 hours. www.begambleaware.org. Terms and Conditions apply. *18+ GambleAware.org Please play responsibly #ad
-
CasinoCasino is a revamped L&L sports betting and casino site from the operators of Pub Casino. Double the name and double your deposit with a 100% match bonus.
*Welcome bonus for a new players only | Maximum bonus is 100% up to $/€/£ 100 | Min deposit is $/€/£10 | No max cash out | Wagering is 40x bonus | Maximum bet while playing with a bonus is $/€/£5 | Eligibility is restricted for a suspected abuse | Skrill and Neteller deposits excluded *18+ GambleAware.org Please play responsibly #ad
-
Feel as though slot sites and casinos just recycle the same old games? Starburst this, Cleopatra that… Looking for a real change in your life that starts where you play?
*1st deposit only | min deposit £10 | max bet £2 | max bonus £100 | max cashout x3 the bonus | max cashout from spin winnings £100 | x40 wagering on bonus and bonus spin winnings | 30-day bonus expiry | 24-hour bonus spins expiry | bonus is valid for selected games only. User Agreement & Bonus T&C apply. *18+ GambleAware.org Please play responsibly #ad T&C's Apply
-
Bet TOM is a new casino & betting site from the great minds behind BetGoodwin. Launched on a completely new licence, we have a casino welcome offer for you!
*Offer valid for new BetTom customers aged 18 years and over. 50% back of first day casino losses refunded as Casino Bonus Funds up to £50. Bonus funds to be credited the next day. Qualifying customers will additionally receive 10x 10p free spins on Big Bass Splash. 35x wagering requirement applies to free spins. Maximum takeout £/€50 from free spins. You must place a minimum of 5 rounds during the qualifying period and 4 of these rounds must be at least half the value of your highest placed wager. Bonus funds maximum winnings capped at £500. Bonuses are subject to a 5x wagering requirement. Once the turnover has been met, any remaining bonus funds will be transferred to your cash balance up to £500. First day casino losses equals all casino losses incurred before 23:59. This offer is limited to one bonus per person, family, household, email address, IP address, telephone number, same payment account number (e.g debit card) and shared (e.g public library or workplace). Minimum losses of £10 to qualify for bonus funds. Both the casino and sportsbook offers can be redeemed once the eligibility criteria for each offer have been met. *18+ GambleAware.org Please play responsibly #ad
-
Luna Casino is a recently launched Skill on Net casino that is now under new ownership. With our special code, enjoy a generous welcome package and huge library of games.
*Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Max. Bonus £50. Maximum amount of Free Spins is 50. 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. Bonus Policy applies. *18+ GambleAware.org Please play responsibly #ad
-
Casino77 is a new Progress Play brand from the operators of Las Vegas Casino. Enjoy a generous first deposit offer and a large variety of games. Now with bingo too!
*New players only 18+. Wager from real balance first. 50X wager the bonus and the winnings from free spins. Contribution varies per game. Selected games only. Wager calculated on bonus bets only. Bonus valid 30 Days from receipt/free spins valid for 7 days from issue. Max conversion: 3x the bonus amount or free spins: £20. Excluded Skrill and Neteller deposits. Withdrawal requests voids all active pending bonuses. Full Terms Apply. *18+ GambleAware.org Please play responsibly #ad
-
Mr Mega is a new Sharp Connection casino on the Aspire platform. There are hundreds slots and games available and we have an exclusive deposit bonus.
*18+. New Players Only. Min 1st Deposit: £10. Max Bonus £100. 35x wagering required. Spins are credited on Big Bass Bonanza. T&Cs apply. *18+ GambleAware.org Please play responsibly #ad
-
PokerStars Casino is an exciting slot site with an amazing welcome bonus with big bonus. This new offer is bigger and better than ever before!
*New casino players only. Min deposit £20 with ‘FIRST500’ required. Max deposit £500. 5 redemption points per £1 required to convert Casino Instant Bonus into cash. Casino Instant and Free Spins expire in 7 days. Selected Slots only. Terms apply. *18+ GambleAware.org Please play responsibly #ad
-
Las Vegas Casino is a recently launched Progress Play casino with a high class Vegas-themed website with a hard-boiled, noir twist. Use our code to get an exclusive welcome offer.
*New players only. Opt-in Required. Wager from real balance first. 40X wager the bonus and the winnings from free spins. Contribution varies per game. Selected games only. Wager calculated on bonus bets only. Bonus valid 30 Days from receipt/free spins valid for 7 days from issue. Max conversion: 3x for the bonus. Max conversion for free spins: £100. Limited to 5 brands within the network. Excluded Skrill and Neteller deposits. Withdrawal requests voids all active pending bonuses. Full Terms Apply *18+ GambleAware.org Please play responsibly #ad
-
You'll know them as the biggest brand in Irish gaming, but on WDW we've only featured Paddy Power Bingo in the past. Now, you can enjoy games galore on a site that is simply jam-packed with games, games, games!
*New customers only. Enjoy 50 Free Spins on any of the eligible slot games + 10 Free Spins on Paddy’s Mansion Heist. Claim your 50 Free spins from your promotional hub. Next, enjoy your 10 Free spins on Paddy’s Mansion Heist (Awarded in the form of a £1 bonus). Finally, opt in, deposit and wager £10 to receive 100 more Free Spins on slots. Free Spins expire after 7 days. T&Cs apply. *18+ GambleAware.org Please play responsibly #ad
-
Kong Casino is a Jumpman Gaming slots and bingo site with a very large, very scary mascot. As one of Jumpman's most trafficked brands, we're thrilled to bring you Kong Casino for the first time in 2024.
*New players only, £10 min fund, £200 max matchup bonus, free spin wins credited as bonus, 65x wagering requirements, max bonus conversion to real funds equal to lifetime deposits (up to £250), full T&Cs apply *18+ GambleAware.org Please play responsibly #ad T&C's Apply
-
HippoZino Casino is an online casino and slots ProgressPlay site that features a rather terrifying-looking hippo as its mascot – before you laugh, remember that hippos are believed to kill over 500 people a year in Africa! We hope that this site isn’t quite as dangerous as a hippo bite!
*New Players Only. Wager from real balance first. 50X wager the bonus. Contribution varies per game. selected games only. Wager calculated on bonus bets only. Bonus valid 30 days / Free spins valid 7 days from receipt. Max conversion: 3x the bonus amount or from free spins: £20. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits. Full terms apply *18+ GambleAware.org Please play responsibly #ad T&C's Apply
-
666 Casino is a deliciously evil Aspire Global casino site from our friends at Big Win. Inspired by the number of the beast, have a crack in the underbelly of the online casino world.
*18+. New players only. Min deposit £20. Max bonus 100% up to £66 on 1st deposit. 66 spins on Big Bass Bonanza on 2nd deposit. 35x wagering applies, within 21 days. Max wins from spins £100. Spins expire after 24 hours. Full T&Cs Apply *18+ GambleAware.org Please play responsibly #ad
-
The first thing we noticed about Lucky VIP Casino (besides the well-designed homepage) was that this site has some of the lowest wagering requirements of any casino site that we’ve come across!
*New Customers Only. Min dep £20 (Paypal & Paysafe exc). Max Bonus £20, Wager Requirement 10x & Max win £1,000. On selected games. T&Cs apply. *18+ GambleAware.org Please play responsibly #ad T&C's Apply
-
Eagle Spins is another American frontier themed Jumpman Gaming slots site, hot on the heels of Wild West Wins. This site, however, has a bonus welcome offer.
*New players only, £10 min fund, £200 max bonus, 65x Bonus wagering requirements, max bonus conversion to real funds equal to lifetime deposits (up to £250) full T&Cs apply *18+ GambleAware.org Please play responsibly #ad
-
Slotnite is a brilliantly simple and straightforward new slots site from White Hat Gaming. The name is inspired by the famous internet video game.
*18+. New players only. Opt-in required. Min deposit £10. 100 bonus spins valid on Aloha! Cluster Pays. Bonus funds are 100% up to £100. Bonus spins credited at a rate of 20 bonus spins per day over five days, triggered on your first deposit. Bonus funds + spin winnings are separate to cash funds and subject to 35x wagering requirement (bonus + deposit). Only bonus funds count towards wagering contributions. Bonus spins winnings capped at £50. £5 max bet with bonus funds. Bonus funds must be used within 30 days, spins within 10 days. Affordability checks apply. Full Terms Apply. *18+ GambleAware.org Please play responsibly #ad
-
The Vic is the online home of the Grosvenor Victoria Casino located in central London. This brilliant new slot site runs on the same engine as Rialto Casino.
*New players only. Min Deposit £20, excl. PayPal & Paysafe. £20 bonus (x10 wager) on selected games. Max win £2K. T&Cs apply. *18+ GambleAware.org Please play responsibly #ad T&C's Apply
-
Genting Casino is a casino gaming site featuring an extensive array of online slots and an award-winning live dealer platform.
*Automatically credited upon deposit. Cancellation can be requested. First deposit only. Min. deposit: £20.Max. Bonus £55. WR of 30x Deposit+Bonus amount (Slots count 100%, other games 10%) within 30 days .Spins Game: Starburst. Max Spins:55 . WR 60x free spin winnings amount (only Slots count) within 30 days. Spin value: £0.10.. Max bet is 10% (min £0.10) of the Bonus amount or £5 (lowest amount applies). Bonus must be claimed before using deposited funds. First deposit bonus can only be claimed once every 72 hr across all casinos.Bonuses do not prevent withdrawing deposit balance. Bonus Policy applies. *18+ GambleAware.org Please play responsibly #ad
-
SKOL Casino is a new casino from the creators of Slotnite. Originally launched in the Scandinavian markets, SKOL stands out especially for its enormous welcome bonus over your first few deposits.
*18+. New players only. Opt-in required. Min deposit £10. 100 bonus spins valid on Gonzo's Quest or Starburst. Bonus funds are 100% up to £100. Bonus spins credited at a rate of 20 bonus spins per day over five days, triggered on your first deposit. Bonus funds + spin winnings are separate to cash funds and subject to 35x wagering requirement (bonus + deposit). Only bonus funds count towards wagering contributions. Bonus spins winnings capped at £50. £5 max bet with bonus funds. Bonus funds must be used within 30 days, spins within 10 days. Affordability checks apply. Full Terms Apply. *18+ GambleAware.org Please play responsibly #ad
-
Hyper Casino, launched in January 2019, is the latest site on the L&L Europe platform. Other notable bedfellows in the L&L stable include Fun Casino, Yako Casino, and All British Casino. Hyper is a slightly different animal to these other casinos.
*#AD New players only, min deposit £10, wagering 45x, max bet £5 with bonus funds, 100% up to £100 bonus on 1st deposit. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Full T&C’s apply *18+ GambleAware.org Please play responsibly #ad T&C's Apply
Best Slot Bonus Offers UK
So what constitutes the best slot bonus? Well, this is a subjective question – some players look for percentage matches while others prefer the additional perks such as bonus spins. Whichever your preference, there are a few things to keep in mind when searching for competitive welcome bonuses.
What is a good Casino Deposit Bonus?
As a general rule of thumb, look for welcome bonuses that offer at least a 100% match of up to £200. Anything lower should probably be avoided unless the promotions include additional incentives that are unusually generous, such as extra spins or no wagering slots.
Usually, you’ll need to deposit £10 to get bonus slots. You will also find some more generous slot offers than 100% match. For example, at some sites you’ll see deals like deposit £10, get £30 slots or even more!
Our largest bonus in 2025 comes from Fafabet – look at the size of that thing!
What other types of casino bonus exist?
Extra Spins
Most online casinos offer from 50 to 120 extra spins as part of their casino deposit bonuses. There are exceptions of course, with some welcome promotions comprising up to 200. However, such offers are somewhat thin on the ground so try to identify bonuses that include a minimum of 50 spins.
What about wagering requirements on a slots bonus?
Behind every welcome offer lurks the bête noire of every casino-gamer: wagering requirements. Like it or not wagering, or play-through rules as they’re sometimes known in gambling parlance, are a fact of life. They generally require players to wager a multiple of their deposit (as well as the bonus itself in some cases), before any winnings can be withdrawn.
For certain players, wagering doesn’t present much of a problem. However, they should be treated like a wounded tiger – with respect and caution.
In the early days, operators would hide these harsh stipulations in their T&Cs pages. But recent, regulatory changes now require them to be included in all promotional advertising. Take a look at any casino welcome offer and you’ll see wagering rules written in small print beneath the shrieking promo headlines.
It’s quite difficult to recommend an acceptable wagering rate. Other than zero, we’d suggest something in the region of 30 – 40. However, you might want to stretch higher, depending on the generosity of the related bonus. For more information, see our no wagering slots page.
Time-Limits
Because of wagering rules, you’ll also need to pay close attention to promotional time-limits. After all, playing through a bonus and/or deposit some forty-or-so times won’t happen overnight.
So to protect any winnings you might accrue, be mindful of how long you’ve got to satisfy this requirement. The terms of many promos and offers can be satisfied within 30 days but be aware: some operators still impose draconian time-limits which make it extremely difficult to meet wagering rules in time.
Game Weighting on the Best Slot Bonuses
Game weighting should also be considered when choosing the best casino deposit bonus, with online casino games contributing different percentages towards the completion of wagering requirements.
While many standard slots contribute 100% to play-through rules, there are some, particularly those with high RTPs, which offer less. Additionally, table games are usually assigned low weighting percentages because their house edge is that much lower than other games.
To conclude then, it’s always a good idea to read the terms and conditions thoroughly before committing to any casino or slots deposit bonus. Although some welcome packages aren’t quite what they seem, there are plenty of offers, such as the ones included above, which offer genuine value for money. Just be sure that you’re fully clued-up about each restriction in place.
Slot Bonus & Offer Categories
For the rest of our slots bonus and offer type pages, see our list below to find the right brand for you.
No Wagering Slots - December 2025
View allNo Deposit Slot Sites - December 2025
View allBest Slots Sites with Free Spins Offers
View allExclusive Slots Offers
View allBest Slot Bonus FAQs
Yes, very often a slots site will stipulate which slots and games are eligible in the bonus. Be careful to read the terms and conditions! Some bonuses may only be eligible on one slot game. Some may be eligible across a certain platform of slots. Some bonuses will accept a great majority of slots bonus across the site, but this is incredibly rare.
Sometimes, but this is becoming increasingly rare. Check the terms and conditions, but most casino bonuses will ask you to play through your bonus first.
Yes – this is pretty much always the case. The generosity of this figure varies massively from £2-£3 all the way up to hundreds of pounds. Often, it depends on the type of bonus. Free Spins winnings often have a lower cap. This information will always be included in the terms and conditions.
Yes, frequently. Check the T&Cs to see what the maximum bet you can make with your bonus is each time.
Usually, a site will have a separate live dealer casino welcome bonus. The new player may even be offered a choice between different types of welcome bonus. However, it is rare for a standard casino welcome offer to be playable on live dealer casino games. Sometimes they may be eligible, but the game weighting towards the wagering requirement may be miniscule.
About the author
Harrison Score is the Head of WDW Bingo. He is an iGaming expert with a decade of experience, having been a content writer at FTD Digital since 2016. A specialist in bingo and slots, with a good grasp of sportsbook from his tennis betting days, Harrison knows the ins and outs of the regulated UK market. His favourite casino site this month is BresBet.
More about Harrison Score
