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Best Slot Bonus Sites - May 2022

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!

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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.

  • Mecca Games is a brilliant slots and games site with a big Megaways slot bonus. The site is a perfect marriage between the Mecca Bingo brand and slot sites like Aspers Casino.

    *New customers only. Min deposit £10. 25x wagering reqs. 10x max convertible. 20 free spins on Gonzo’s Quest Megaways only. 5x wagering on free spins. 10x max convertible. Valid for 7 days. T&Cs apply. *18+ BeGambleAware.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 online slots or casino site that we’ve come across! So what else appeals about this online casino site?

    *Min. 1st dep. of £20 and above. Max bonus £555 on selected slots; 50x wagering on the sum of deposit & bonus applies. Prize Wheel: Max possible bonus £50, valid 7 days, bonus & wins playable on All slots except bonus excluded games, 20xWR. Max convertible to real is 5x bonus amount received. Full T&C's apply, 18+ only *18+ BeGambleAware.org Please play responsibly #ad

  • Platin Casino is a new slot site owned by Viral Interactive. The site runs on a unique software platform and has a fantastic welcome offer which includes cash spins.

    *Terms and conditions apply. New customers only. Min £10 deposit. Max win from bonus money £100. Max stake with bonus active is £5 and 35x wagering on Slots only. 50 cash Free Spins released over 5 days. Expires 14 days after deposit. *18+ BeGambleAware.org Please play responsibly #ad

  • Voodoo Dreams is a SuprPlay casino that's coming to UK players for the first time. This site runs on a unique platform and has an excellent welcome offer including real money spins on first deposit.

    *18+ new players only. Maximum £50 bonus. Minimum deposit: £20. Deposit Bonus wins are capped at £500. Max bet with active bonus: £2. Wagering requirement 100% match deposit bonus: 30 times sum of deposit + bonus. Winnings from Free Spins are credited as Real Money without wagering requirement. Some games may not be played with an active bonus. Games may contribute differently when wagering a bonus. Deposit Bonus expires after 30 days if wagering requirement has not been met. Free Spins expire after 3 days. One bonus allowed per person, address, device, IP. *18+ BeGambleAware.org Please play responsibly #ad

  • “Kaiser” is German for “emperor”- hence the little crown in Kaiser Slots’ logo. This online slots and casino site was launched in May 2017, and you can catch glimpses of the site’s mascot, a dog named Kaiser, around the site (though he’s not as visible as he used to be, due to regulations on child-friendly cartoon characters).

    *New Players Only 18+. Minimum Deposit: £10. Maximum Offer: 100% Bonus up to £50 & 100 Spins on Starburst. Players will be credited with 20 Spins per day, across 5 days. Bonus & Spins winnings must be wagered 35x before withdrawal. Spins expire after 5 days. Promo Code: 100SPINS. Withdrawal & full T&Cs apply. Valid until 31/12/2022. *18+ BeGambleAware.org Please play responsibly #ad

  • 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 exclusive bonus with free spins with cash wins, unless otherwise specified.

    *18+ begambleaware.org; New Customers only; Min. deposit £15 (no Skrill/Neteller); Wager bonus 40x within 15 days; Max winnings = 10x bonus; Free spins validity: 7 days; Free spins max. winnings = £100. Stake contribution as per eligible games; See full terms; Terms apply *18+ BeGambleAware.org Please play responsibly #ad

  • Royale500 is a new casino and slots site from the operators of Lucky Louis and Playmillion. Claim the unique bonus and enjoy the available games on this Skill on Net site.

    *First Deposit Only. Min. Deposit: £20, Max. Bonus £50. Maximum Amount Of Free Spins Is 33. Game: Legacy 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. Deposit/Welcome Bonus Can Only Be Claimed Once Every 72 Hours Across All Casinos. *Games Are Subject To Availability. *18+ BeGambleAware.org Please play responsibly #ad

  • Merkur Slots is a new online slots site, available to UK players for the first time, although you may recognise the name from the high street. The site is on an independent platform and completely unique!

    *18+. New Customers Only. Opt in required. Available first 3 days, on first deposit. Min. £10 deposit. Max. bonus £150. Max. stake £5. 50x wagering applies. Max. conversion £1000. 50 Free spins at 10p a spin awarded once £20 cash is staked on selected games. Bonus and Free spins expire 7 days from issue. Eligibility, game restrictions and terms and conditions apply. *18+ BeGambleAware.org Please play responsibly #ad

  • 777 Tigers is a new Progress Play casino site launched in March 2022. The site has a generous welcome bonus and we're one of the first portals to list it!

    *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 from receipt. Max conversion: 3x the bonus amount. Excluded Skrill deposits. Withdrawal requests voids all active pending bonuses. Full Terms Apply. *18+ BeGambleAware.org Please play responsibly #ad

  • Genie Riches is a new Dragonfish slots site launched in October 2021. There are over 700 slots and games and we have an exclusive code for a juicy welcome bonus.

    *New players only. Valid until further notice. Min dep £10. 100% Games Bonus[GB] up to £555 + 3-wheel spins. Wheels prizes and odds vary & include multiple prizes. Free Spins [FS] wins granted in GB. GB valid on selected games only. WR: 85x FS wins; 50x (dep + GB). WR vary by game. GB wins cap: £100 + initial bonus. Country restrictions apply. UK: deposit balance can be withdrawn at any time. 18+. Full T&C apply. *18+ BeGambleAware.org Please play responsibly #ad

  • Mr Mega is a new Sharp Connection casino with sportsbook launched just in time for 2022. There are over 600 slots and games available and the site offers a generous 1st deposit match bonus.

    *Welcome Bonus: 18+. Terms and Conditions Apply. New Players Only. Minimum deposit: £10. Wagering requirement: 35x. T&Cs apply *18+ BeGambleAware.org Please play responsibly #ad

  • ZetBet Casino is a new Aspire Global slots and sportsbook site run on the same platform as Mr Play. The site has a big welcome bonus and free spins offer as well as a wide selection of games and betting opportunities.

    *Applies only to new depositing players. 18+. Minimum deposit for 1st deposit bonus: £10. Welcome Package split over 3 deposits. Minimum deposit for 2nd & 3rd deposit bonus: £20. 35x Wagering requirement applies to match up bonus. 100 spins splits to 20 spins a day for 5 days. Spins credited in specific games. Spins expire after 24 hours. 50x Wagering requirement applies to spins. Terms and Conditions apply. *18+ BeGambleAware.org Please play responsibly #ad

  • Mr Rex is a new slots & sports betting site from Aspire Global. The site has a brilliant orange design and a very smooth user interface. The welcome bonus comes with free spins and a decent matchup offer.

    *18+. New Players Only. Min deposit £10. 100 Spins require 3 deposits: min second and third deposit £20. Spins and bonus wagering requirement: 35x, spins expire after 24 hours. BeGambleAware.org | Gamble Responsibly *18+ BeGambleAware.org Please play responsibly #ad

  • Luckster is a new Aspire Casino from the operators of Mr Play and ZetBet. Under the watch of a lucky leprechaun's hat, players can enjoy a fantastic range of games as well as a sportsbook section.

    *Terms & Conditions apply. New players only, 18+. Min Deposit £10. Welcome Package splits over 3 deposits, 35x wagering requirement applies to match up bonus. *18+ BeGambleAware.org Please play responsibly *18+ BeGambleAware.org Please play responsibly #ad

  • 777 Cherry is a new Jumpman Gaming slots and bingo site with an exciting bonus wheel welcome offer and hundreds of slots and games to play. Stick your teeth into this juicy fruit of a casino!

    *New players only, £10 min fund, £1,000 max bonus, max bonus conversion equal to lifetime deposits (up to £250), 65x wagering requirements and full T&Cs apply *18+ BeGambleAware.org Please play responsibly #ad

  • 21 isn’t your average casino site. As soon as you arrive on the homepage, you can tell there is an air of quality, craftsmanship, and care. This is designed to be a special experience for the customer.

    *18+. New players only. Min deposit £10. Bonus funds are 121% up to £300. Bonus funds are separate to cash funds and subject to 35x wagering requirement. Only bonus funds count towards wagering contribution. £5 bonus max bet. Bonus funds must be used within 30 days, spins within 10 days. Affordability checks apply. Terms Apply. *18+ BeGambleAware.org Please play responsibly #ad

  • Plaza Royal Casino is a unique Aspire platform site released in November 2020. From the makers of Queenplay and Spin Rio, Plaza Royal is a Vegas Hotel themed site with lots of slots and a good bonus.

    *Applies only to new depositing players. 18+. Minimum deposit: £10. 35x Wagering requirement applies to match up bonus. Spins credited in specific games. Spins expire after 24 hours. Wagering requirement applies to spins. Terms and Conditions apply. *18+ BeGambleAware.org Please play responsibly #ad

  • Let's get it on at Betiton Casino, a brand-new Aspire slots site on WDW Bingo. Make a deposit to get a generous match deposit bonus and get access to hundreds of slot games.

    *New customers only. Min deposit £10 max bonus amount £80. Wagering bonus 35x. Neteller and Skrill deposits not eligible. T&Cs apply *18+ BeGambleAware.org Please play responsibly #ad

  • Queen Play Casino is a new Aspire casino from the developers of Mr Play. Check out the generous welcome offer in 3 parts and over 500 available slots.

    *Terms and Conditions apply. New players only. 18+. Min deposit £10. Wagering requirement apply 35x. Offer valid for 72hr. 100 spins includes 3 deposit. *18+ BeGambleAware.org Please play responsibly #ad

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!

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 - May 2022

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We list all the best slots sites with no wagering bonuses. We have exclusive, no deposit & free spins offers with real money wins, but you may need to play through your deposit first. Check our top no wagering slots...

No Deposit Slot Sites - May 2022

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These are the best new slot sites with free spins no deposit offers in 2022 as well as established sites with great deals. Get free spins just for adding a card in the...

Best Slots Sites with Free Spins Offers

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Looking for slot sites that have free spins or bonus spins offers as part or whole of their welcome bonus? Then you are in exactly the right place. Here we list the best and newest slot sites with brilliant spin...

Exclusive Slots Offers

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Welcome to our Exclusive Slot Offers page. Here, you’ll find all the slot sites that we’ve struck special deals with to give you a unique (and totally better) deal than you would get if you went straight to the site...

Best 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.

Recommended Offers

Merkur Slots Merkur Slots Review

Deposit £10+, Get 150% Bonus up to £150 + 50 Cash Spins

Play at Merkur Slots

*18+. New Customers Only. Opt in required. Available first 3 days, on first deposit. Min. £10 deposit. Max. bonus £150. Max. stake £5. 50x wagering applies. Max. conversion £1000. 50 Free spins at 10p a spin awarded once £20 cash is staked on selected games. Bonus and Free spins expire 7 days from issue. Eligibility, game restrictions and terms and conditions apply. *18+ BeGambleAware.org Please play responsibly #ad

Double Bubble Bingo Double Bubble Bingo Review

Deposit & Play £10, Get £50 of Free Bingo OR 50 Free Spins

Play at Double Bubble Bingo

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

Jackpot.com Jackpot.com Review

Deposit & Play £15+, Get 50 No Wager Free Spins

Play at Jackpot.com

*This one-time offer is only available here for new UK customers of Jackpot.com. To participate a minimum £15 bet is required. Any terms not specified in these Special Promotional Terms, the Promotional Terms shall apply and will be subject to Jackpot.com Terms and Conditions. *18+ BeGambleAware.org Please play responsibly #ad

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*This one-time offer is only available here for new UK customers of Jackpot.com. To participate a minimum £15 bet is required. Any terms not specified in these Special Promotional Terms, the Promotional Terms shall apply and will be subject to Jackpot.com Terms and Conditions. *18+ BeGambleAware.org Please play responsibly #ad

*New players only. Valid until further notice. Min dep £10. 200% Bingo Bonus [BB] max £20 + 100% Game Bonus [GB] max £10. WR: 4x (dep+BB); 50x (dep+GB). WR vary by game. GB valid on selected games only. GB wins cap: £100 + initial bonus. UK: deposit balance can be withdrawn at any time. Country restrictions apply. 18+. Full T&C apply. *18+ BeGambleAware.org Please play responsibly #ad

*20 Free Spins bonus is awarded on the first deposit (after registration as a new player) of minimum £ 10. Only one bonus per player is available. The winnings generated from the bonus will be credited to the player's real money account up to the maximum conversion Amount of £ 500. If within 48 hours from crediting the bonus to player's account, player did not use the bonus, the bonus will expire and player shall not be able to receive the expired bonus. Withdrawal request voids any active/pending bonuses. Excluded Skrill deposits. Full Terms apply. *18+ BeGambleAware.org Please play responsibly #ad

*1st depositors only. Country restrictions apply. Min £10 deposit, get 300% Bingo Bonus [BB] (max £200) + 30 Free Spins [FS] on Fruit Blast. Must be claimed within 7 days. BB valid on specific rooms only. FS wins capped at £6 Games Bonus [GB]. Wagering requirements apply; 30x GB funds (vary by game) GB wins capped at £100, exc. PJP win. Wagering req. apply: 2x (deposit + BB funds); Country restrictions apply. T&Cs Apply *18+ BeGambleAware.org Please play responsibly #ad

*18+ New customers. Deposit and spend £10 on Bingo tickets within 30 days of registering. Get 500 Bingo tickets for Heart Bonanza, 7 days expiry + 25 Free Spins on Heart Bonanza Slot Game, 7 days expiry. Click for T&Cs. | begambleaware.org | Please gamble responsibly *18+ BeGambleAware.org Please play responsibly #ad

*Terms and conditions apply. New customers only. Min £10 deposit. Max win from bonus money £100. Max stake with bonus active is £5 and 35x wagering on Slots only. 50 cash Free Spins released over 5 days. Expires 14 days after deposit. *18+ BeGambleAware.org Please play responsibly #ad

*18+ new players only. Maximum £50 bonus. Minimum deposit: £20. Deposit Bonus wins are capped at £500. Max bet with active bonus: £2. Wagering requirement 100% match deposit bonus: 30 times sum of deposit + bonus. Winnings from Free Spins are credited as Real Money without wagering requirement. Some games may not be played with an active bonus. Games may contribute differently when wagering a bonus. Deposit Bonus expires after 30 days if wagering requirement has not been met. Free Spins expire after 3 days. One bonus allowed per person, address, device, IP. *18+ BeGambleAware.org Please play responsibly #ad

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

*New Players Only 18+. Minimum Deposit: £10. Maximum Offer: 100% Bonus up to £50 & 100 Spins on Starburst. Players will be credited with 20 Spins per day, across 5 days. Bonus & Spins winnings must be wagered 35x before withdrawal. Spins expire after 5 days. Promo Code: 100SPINS. Withdrawal & full T&Cs apply. Valid until 31/12/2022. *18+ BeGambleAware.org Please play responsibly #ad

*New customers only. Min deposit £10. 25x wagering reqs. 10x max convertible. 20 free spins on Gonzo’s Quest Megaways only. 5x wagering on free spins. 10x max convertible. Valid for 7 days. T&Cs apply. *18+ BeGambleAware.org Please play responsibly #ad