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Best Slot Sites for 2023

Casino player or not, let's get one thing straight. Online slots are kind of a big deal. No wonder they're calling the shots at most online casinos. Out with the term casino site and in with the term slot site. With so many online slot sites out there and new ones looking to hop on the bandwagon, it's no wonder that some players are getting caught out. Not all of the gambling sites you see are to be trusted. That's where we have stepped in. Read on as we take you through it all, but first, as promised, the top slot sites!

Top Slot Sites

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1
leo vegas
LeoVegas Casino
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  • slots-iconExclusive games
  • mobile-iconAward-winning app
  • bonus-no-deposit-iconNo deposit bonus
Welcome Offer - UK100% up to £100 + 50 Spins
Very Good
safe-icon
T&Cs apply. New reg only. Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 25 wager-free spins x10p to added to Big Bass Splash with each qualifying deposit, 3 day expiry. 18+ BeGambleAware.org.
Top bonuses
  • bonus-icon100% up to £100 + 50 Spins
Payment methods
mastercard logoPaypal logoPaysafecard logoSkrill - Moneybookers logotrustly logoVisa logoApple Pay logocredit debit cards logointerac logomuchbetter logoecoPayz logomaestro logopay 4 fun logo
Top games
  • slots-icon
    Slots: 1500+
  • blackjack-icon
    Blackjack: 150+
  • roulette-icon
    Roulette: 80+
  • live-icon
    Live: 200+
kay jones Reviewed by Kay
LeoVegas UK Welcome Bonus ● Promotion consists of a reward of up to £100, once a wagering target is completed, plus 25 free spins on any chosen 2 deposits in the first 7 days from registration. ● Opt-in and deposit £10, £25 or £50. ● Bonus valid for 2 deposits. ● You can get £100 across two deposits, £50 per deposit. ● Deposited cash must be wagered 35 times to unlock bonus. ● Once unlocked, bonus cash is withdrawable. ● Deposits of £10, £25 or £50 will make the player eligible for a potential reward once the wagering target is met: ● Deposit of £10 - £24 = £10 reward ● Deposit of £25 - £49 = £25 reward ● Deposit of £50 or more = £50 reward ● Once an eligible deposit has been made to trigger the above offers, 25 free spins on Big Bass Splash will automatically be added to the player's account, in addition to the offers above. ● These spins will be shown when the player opens Big Bass Splash, and must be used within 3 days of when they are added, after which they will no longer be available. ● The spins have no wagering requirement. Winnings from these spins are instantly credited to the player’s real money balance that can be withdrawn. ● Free spins are worth £0.10 each and are only available on Big Bass Splash. Full LeoVegas terms apply, 18+, New Players Only. ● Gamble Responsibly - begambleaware.org. Wagering Requirements: Slots - 35 x Deposit #ad
2
duelz
Duelz Casino
star-full-iconstar-full-iconstar-full-iconstar-full-iconstar-empty-icon
  • usp-iconUnique Duelz battle feature
  • paypal-iconPayPal accepted
  • bonus-iconExcellent welcome offer
Welcome Bonus - UK100% up to £100 + 100 Spins
Very Good
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18+, New players only. Min. deposit £20. Bonus spins valid on Book of Dead slot only. 30x wagering on bonus, 45x wagering on free spins. £2 bonus max bet. Bonus and spinsmust be used within 30 days. Full T&Cs apply. Gamble responsibly – www.begambleaware.org #ad
Top bonuses
  • bonus-icon100% up to £100 + 100 Spins
Payment methods
Paysafecard logoVisa logomastercard logoecoPayz logoinstadebit logointerac logobitcoin logoastropay logoidebit logoneosurf logocitadel logoflexepin logolitecoin logomuchbetter logo
Top games
  • slots-icon
    Slots: 900+
  • blackjack-icon
    Blackjack: 10+
  • roulette-icon
    Roulette: 10+
  • live-icon
    Live: 35+
kay jones Reviewed by Kay
Welcome Bonus - up to £100 + 100 FS ● Min Deposit: £20 ● Expiry Date (Bonus): 30 Days ● FS (Free Spins) Expiry: 30 Days ● FS Max Cashout: £100 ● Max Bet Limit: £2 ● 18+ New Players Only, Full T&Cs apply ● Gamble responsibly - www.begambleaware.org Wagering Requirements: Slots - 30x Bonus #ad
3
unibet casino logo review
Unibet Casino
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  • jackpot-iconProgressive jackpot slots
  • paypal-iconAccepts PayPal deposits
  • bonus-iconRefer a friend promotion
Welcome Bonus UKDeposit £10, Get £40
Good
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18+. BeGambleAware.org. New Customers Only. Minimum deposit £10. 50x wagering requirement apply. Bonus will expire 30 days after opt-in. Further T&Cs apply. #ad
Top bonuses
  • bonus-iconDeposit £10, Get £40
  • bonus-iconDeposit £10, Get £40
  • bonus-icon200% up to £20
Payment methods
Apple Pay logobank transfer logocredit debit cards logodiscover logoecheck logoecoPayz logointerac logoNeteller logoPaypal logoPaysafecard logoSkrill - Moneybookers logotrustly logo
Top games
  • slots-icon
    Slots: 1500+
  • blackjack-icon
    Blackjack: 100+
  • roulette-icon
    Roulette: 45+
  • live-icon
    Live: 250+
thomas williams Reviewed by Thomas
Welcome Bonus: Deposit £10, Get £40. ● The minimum qualifying deposit is £10. ● Players must wager the bonus amount 50 times before any withdrawals can be made. ● Players have 30 days to complete the wagering requirements. ● Games contribute different to wagering requirements. ● Deposits can not be made with Paysafe Cards, Skrill and Neteller for this sign up offer. ● 18+, New Players Only. Wagering Requirements Slots - 50 x Bonus #ad
Exclusive
4
casumo
Casumo Casino
star-full-iconstar-full-iconstar-full-iconstar-full-iconstar-full-icon
  • slots-iconOver 2000 games
  • paypal-iconPayPal accepted
  • bonus-iconExcellent loyalty program
Welcome Bonus - UK100% up to £100 + 20 Spins
Excellent
safe-icon
*18+. New UK players only. Opt-in required. 20 Bonus Spins on “Sahara Riches Cash Collect”. 100% Deposit Bonus up to £100 on first deposit. Min deposit £10. 30x wagering on Bonus Spins and Deposit Bonus. Game weighting applies. Max £5/spin or £0.50/line or £50/round (live casino). 30 days expiry. Applies only with bonus link. T&Cs Apply. Please gamble responsibly • www.begambleaware.org #ad
Top bonuses
  • bonus-icon100% up to 300€ + 20 Spins
  • bonus-icon100% up to £100 + 20 Spins
Payment methods
zimpler logobank wire logoboku logogiropay logoideal logomastercard logoNeteller logoPaysafecard logopugglepay logoSkrill - Moneybookers logointerac logoVisa logovisa debit logovisa electron logoPaypal logoApple Pay logo
Top games
  • slots-icon
    Slots: 1800+
  • blackjack-icon
    Blackjack: 15+
  • roulette-icon
    Roulette: 19+
  • live-icon
    Live: 100+
kay jones Reviewed by Kay
Exclusive: 100% Deposit Bonus up to £100 + 20 Bonus Spins ● Opt-In Required, New UK Customers Only. ● Minimum Deposit: £10. ● 20 Bonus Spins to use on 'Sahara Riches Cash Collect'. ● Maximum Bet with Bonus: £5 per spin/£0.50 per bet line on slots, £10 per round on table and live games. ● 30x wagering requirement applies for winnings on Bonus Spins. ● 30x wagering requirement applies for your Deposit and Deposit Bonus. ● 30 days expiry for bonus and free spins. ● Game Weighting Applies. ● 18+, Full Terms Apply. ● Gamble Responsibly - begambleaware.org. Wagering Requirements: Slots - 30 x Bonus #ad
Exclusive
5
amber spins logo
Amber Spins
star-full-iconstar-full-iconstar-full-iconstar-half-iconstar-empty-icon
  • licence-iconPart of a widely trusted iGaming brand
  • slots-iconGood choice of slots
  • credit-card-iconTrusted payment methods
Welcome Bonus200% up to £20 + 100 Spins
Excellent
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First-time depositors only (18+ country restrictions apply). Min deposit: £10. Max offer: £20 Games Bonus & 100 Free Spins (on a game of our choice). Promo code: SPIN100. Any Games Bonus winnings, if applicable, must be wagered 60x before withdrawal. Any Free Spins winnings, if applicable, will be credited as bonus funds and capped at £10. FS are valid for 7 days and any winnings must be wagered 40x 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 & full T&Cs apply. Valid until 31.12.2022. #ad
Top bonuses
  • bonus-icon200% up to £20 + 100 Spins
Payment methods
Paypal logoVisa logomastercard logobank transfer logo
Top games
  • slots-icon
    Slots: 500+
  • blackjack-icon
    Blackjack: 0
  • roulette-icon
    Roulette: 0
  • live-icon
    Live: None
kay jones Reviewed by Kay
200% Deposit Match Bonus + 100 Free spins - Use Bonus Code: SPIN100 ● First time depositors only. ● Minimum Deposit: £10. ● Max offer: £20 games bonus and 100 free spins on selected games. ● Bonus wagering requirements: 60x bonus amount ● Free spins wagering requirements: 40x winnings before withdrawal. ● Games bonus winnings are capped at £100 + original bonus amount. ● Free spins winnings are capped at £10 and FS are valid for 7 days. ● 18+, New Players Only ● Game Weighting Applies, Full Amber Spins Casino Terms Apply ● Gamble Responsibly - begambleaware.org Wagering Requirements: Slots - 60x Bonus #ad
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fansbet casino logo review
FansBet Casino
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  • casino-games-iconGood choice of games available
  • bonus-iconRegular promotions and offers
  • security-iconOwned by an established iGaming group
Welcome Bonus - RoW100% up to 500€
Very Good
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Bonus Terms and Conditions
Top bonuses
  • bonus-icon100% up to 500€
Payment methods
Neteller logoSkrill - Moneybookers logoVisa logomastercard logoecoPayz logointerac logo
Top games
  • slots-icon
    Slots: 900+
  • blackjack-icon
    Blackjack: 15+
  • roulette-icon
    Roulette: 15+
  • live-icon
    Live: 51
kay jones Reviewed by Kay
Welcome Bonus: 100% up to €500 ● Minimum Deposit: €10. ● Maximum Bet (Real Money): 10% of deposit. ● Maximum Bet (Bonus Money): €2.5 ● Bonus Valid for 7 Days. ● Game Weighting Applies. ● 18+, New Players Only, Please Play Responsibly. Wagering Requirements: Slots - 25 x Bonus #ad
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betway
Betway Casino
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  • licence-iconHolds reputable licences
  • mobile-iconiOS and Android apps
  • bonus-iconRegular promotions and offers
Welcome Bonus - UKDeposit and Wager £10, Get 100 Free Spins
Very Good
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New customers only. 18+. Opt-in required. This offer is valid for selected customers only. 100 Bonus Spins on Assassin Moon, Big Boom Riches, Arena of Gold and Aliya's Wishes after first deposit and wager of £10+. 30x bonus wagering applies as do weighting requirements. Debit Card deposits only. This offer is valid 7 days from when your new account being registered. Irregular gameplay may invalidate your bonus. BeGambleAware.org. Bet The Responsible Way. #ad
Top bonuses
  • bonus-iconDeposit and Wager £10, Get 100 Free Spins
Payment methods
Neteller logoSkrill - Moneybookers logoPaypal logoecheck logoentropay logoPaysafecard logoVisa logomastercard logoecoPayz logointerac logovisa electron logomaestro logopostepay logovisa debit logotrustly logoskrill 1 tap logocredit debit cards logom pesa logo
Top games
  • slots-icon
    Slots: 200+
  • blackjack-icon
    Blackjack: 45
  • roulette-icon
    Roulette: 35
  • live-icon
    Live: 80+
thomas williams Reviewed by Thomas
Welcome Bonus - Deposit and Wager £10, Get 100 Free Spins ● This offer is only available to new customers at Betway Casino who reside in UK. ● To qualify for this offer, you must tick the box 'I wish to receive the Welcome Bonus and accept the Terms and Conditions during the registration process. ● Deposit and wager at least £10 using a debit card or Paypal, within 7 days of registering a new account to receive the bonus. ● Once you have started to wager, you must wager the full £10 in a 24 hour period to qualify for the Bonus Spins. ● Bonus Spins can be used on Assassin Moon, Big Boom Riches, Arena of Gold and Aliya's Wishes and are worth £0.10 per spin. ● The spins will be credited to your account, once you meet deposit and wagering requirements. ● The Bonus spins will expire 7 days after you are awarded them. ● All winnings won as a result of play using the Bonus Spins will be credited to the Casino Bonus Account and are subject to 30x wagering requirements. ● Max £7.50 stake limit per spin on slot games with the welcome bonus. The games listed below will have a maximum stake limit of £1 – Beautiful Bones, Cool Buck – 5 reel slot, Magic of Sahara, Macho Man – Village People, Scrooge, Zombie Hoard, Castle Builder, Castle Builder 2, Le Kaffee Bar, Peek a Boo, Stardust and Scarab. ● Game Weighting applies. ● 18+, New Players Only, Full Terms Apply. ● Gamble Responsibly - begambleaware.org. Wagering Requirements: Slots - 30x #ad
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playfrank casino logo
PlayFrank Casino
star-full-iconstar-full-iconstar-full-iconstar-empty-iconstar-empty-icon
  • slots-iconOver 1800 games
  • software-iconGreat filters
  • countries-iconDifferent currencies available
Welcome bonus - UK100% up to £100 + 50 Spins
Very Good
safe-icon
New players only. Min deposit £20. Bonuses to a max of £100 + 50 bonus spins. Wagering bonus 35x. Wagering bonus spins 35x. The winnings must be wagered within 21 days. Bonus T&Cs apply. #ad
Top bonuses
  • bonus-iconup to 300€ + 200 Spins
  • bonus-icon100% up to £100 + 50 Spins
Payment methods
Neteller logoSkrill - Moneybookers logoPaysafecard logoVisa logomastercard logogiropay logointerac logomaestro logosofort logo
Top games
  • slots-icon
    Slots: 1600+
  • blackjack-icon
    Blackjack: 18+
  • roulette-icon
    Roulette: 20+
  • live-icon
    Live: 30+
kay jones Reviewed by Kay
Welcome Bonus: 100% up to £100 + 50 Bonus Spins ● 18+, New players only. ● UK only. ● Min deposit: £20. ● Players must wager the bonus amount 35x. ● Winnings must be wagered in 21 days. ● Bonus T&Cs apply. Wagering Requirements Slots - 35 x Bonus #ad
9
casimba
Casimba Casino
star-full-iconstar-full-iconstar-full-iconstar-full-iconstar-empty-icon
  • bonus-iconRange of bonuses
  • support-icon24/7 customer support
  • paypal-iconPayPal accepted
Welcome Bonus - UKup to £200 + 50 Spins
Very Good
safe-icon
18+. New players only. Min deposit £20. Max bonus bet £5. Bonus spins on selected game only and must be used within 72hrs. Winnings from Bonus spins credited as bonus funds and capped at £100. Bonus funds expire within 30 days. Offer is 100% bonus match up to £200 + 50 Bonus spins on your 1st deposit. Bonus funds are separate to cash funds & subject to wagering requirement (35x deposit + bonus). Only bonus funds contribute towards wagering requirement. Affordability checks apply. Terms apply. Please gamble responsibly. BeGambleAware.org #ad
Top bonuses
  • bonus-iconup to £200 + 50 Spins
  • bonus-iconup to 6500€ + 125 Spins
Payment methods
Neteller logoSkrill - Moneybookers logoPaysafecard logoVisa logomastercard logointerac logo
Top games
  • slots-icon
    Slots: 500+
  • blackjack-icon
    Blackjack: 25+
  • roulette-icon
    Roulette: 30+
  • live-icon
    Live: 35+
kay jones Reviewed by Kay
Welcome Bonus Up to £200 + 50 Free Spins. ● Deposit: 100% - £200 + 50 FS on Book of Dead ● 18+, New Players only. ● Minimum deposit is £20. ● Bonus spins available on selected slots only and must be used within 72 hours. ● Bonus funds expire within 30 days. ● Country and game restrictions apply. ● For match bonuses, players must wager the sum of deposit and bonus amounts 35x before withdrawals can be made. ● For bonus spins, players must wager the bonus amount 35x before withdrawals can be made. ● Terms and Conditions apply. Wagering Requirements Slots - 35 x Deposit + Bonus #ad
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netbet casino logo review
NetBet Casino
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  • bonus-iconValuable welcome bonus
  • software-iconHigh quality games library
  • vip-iconIn-depth loyalty program
Welcome BonusDeposit £10, get up to 500 Free Spins
Very Good
Claim Bonus
safe-icon
New players, £10+ deposit, no e-wallets/prepaid cards, up to 500 Free Spins, 40x wagering on Free Spins winnings. Terms apply. #ad
Top bonuses
  • free-spins-iconDeposit £10, get up to 500 Free Spins
Payment methods
bank wire logoecoPayz logoentropay logomastercard logoPaypal logorapid transfer logotrustly logoVisa logo
Top games
  • slots-icon
    Slots: 1500+
  • blackjack-icon
    Blackjack: 17+
  • roulette-icon
    Roulette: 20+
  • live-icon
    Live: 50+
kay jones Reviewed by Kay
UK Welcome Bonus - Deposit £10 – get up to 500 FS ● NetBet Free Spins - Things to Know: ● Deposit amount doesn’t affect number of free spins (minimum is £10). ● 50 free spins credited immediately after first deposit. ● Remaining 450 free spins are given in random amounts, every day. ● You can get from 0 to 75 free spins per day, for 6 days. ● E-wallets and Prepaid cards excluded. ● Free Spins expire in 2 days after being credited. ● 18+, New Customers Only, One Deposit Per Household/IP/Customer. ● Full NetBet Casino Terms and Conditions apply. ● Gamble Responsibly - www.begambleaware.org. Wagering Requirements: Slots - 40 x Bonus #ad

Stick to our list above and you can expect a top-quality gaming experience. Whether you are looking for classic slots such as 3-reel fruit machines or prefer something with more bonus games, these are the places you should sign-up to. New Players are also going to want to snap up some of the welcome bonuses they have on offer. On the other hand, existing players, in particular, high rollers will love the massive jackpots in these casinos.

Players can also rest assured that the above slot sites are all trustworthy. UK players will be pleased to know that most boast a UKGC license. These casinos boast online slot games from top providers. In fact, all of their slot machines are RNG tested and regularly audited by eCOGRA which is an independent third party.

Top Online Slots Casino Bonuses

Our previous list is great if you are looking for the best casinos to win real money playing online slots. If however bonuses are your priority, a few particular ones will come out on top. There are many different bonuses out there. Welcome bonuses or first deposit promotions targetting new players are not uncommon but some are more generous than others.

These can be in the form of free spins awarded on sign up or against a deposit. Some casinos offer similar options for existing players too. One thing with bonuses is that it is essential to read the full terms. Bonus offers are usually not available on all online slots, for instance very few target progressive jackpots. Wagering requirements are also important here. Luckily we have done the hard work for you and taken all of this into consideration. Below are the top online casino bonuses currently out there.

Betfair

betfair casino logo review
Betfair Casino
star-full-iconstar-full-iconstar-full-iconstar-full-iconstar-full-icon
  • casino-games-iconExclusive live games
  • support-icon24/7 live chat
  • mobile-iconiOS and Android apps
Bonus Spins50 Spins
Excellent
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New Casino players from UK & Ireland only. SMS verification required. T&Cs apply. By taking part in this promotion, you agree with our Terms & Conditions.  #ad

When a casino accepts PayPal, you know they're one to count on. Betfair isn't just ticking boxes when it comes to safety, they also have some great bonuses. Firstly they have a deposit bonus especially for new players from the UK. The casino will award bonus spins on specific slot machines by Playtech. There is a minimum deposit in place but its relatively low. Usually, you'll have to watch out for wagering requirements. This is one of the free spins bonus that does not need you to wager your winnings.

For new customers from other countries, the offer is even better. Again it's a deposit bonus but this time players will need to wager the bonus amount. Players meeting the minimum deposit will also receive free spins. The great thing about this welcome bonus is that it includes some progressive jackpots in its list of eligible games. This is not something you see online casinos doing very often.

888 Casino

888 casino
888 Casino
star-full-iconstar-full-iconstar-full-iconstar-full-iconstar-full-icon
  • dealer-live-iconHuge range of live games
  • slots-iconExclusive slot titles
  • bonus-iconRewarding VIP scheme
Welcome Bonus - RoWup to 1500€
Excellent
Claim Bonus
safe-icon
18+, New players only. $/€20 min deposit. 1st deposit immediate 100% up to $/€100 bonus. 2nd -5th deposits must be done and wagered 3 times within 7 days of the 1st deposit, to receive 30% up to $/€350 bonus per deposit. 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. Withdrawal restrictions & full 888Casino T&Cs Apply. Gamble Responsibly -- www.begambleaware.org #ad

If you liked the previous bonus then you'll love what 888 Casino has to offer. Firstly they have two welcome bonuses in place for New Players. Although they are both against a minimum deposit one is a simple 'double your money' bonus whereas is split into 5 tiers. Of course, the latter is a better option if you are looking to win real money but it also comes with bigger risks. The online casino has taken things one step further. They also have a no deposit in place whereby players are awarded free money as soon as they sign-up. Again, they are specific wagering requirements in place and casino games contribute differently to them. The good thing is that all video slots contribute fully and they have a great range if NetEnt slots to wager on such as NetEnt's Berryburst.

Existing players are in for just as sweet a deal. 888 Casino has a bonus for each day of the week. For instance, on Mondays, they have a deposit bonus specifically for progressive jackpot slots. Other bonuses include cashback offers and free play money online. There are many opportunities to reel in a big win and the casino is even helping you get there.

Casumo

casumo
Casumo Casino
star-full-iconstar-full-iconstar-full-iconstar-full-iconstar-full-icon
  • slots-iconOver 2000 games
  • paypal-iconPayPal accepted
  • bonus-iconExcellent loyalty program
Welcome Bonus (RoW)100% up to 300€ + 20 Spins
Excellent
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Bonus Terms and Conditions

If you are a fan of Barcrest slots such as Rainbow Riches, then Casumo is where you want to be heading. The thing about this slot site is that the welcome bonus is subject to change. For what it's worth, they usually offer a mix of bonus money and free spins for new customers making the first deposit. Wagering requirements apply of course and video slots contribute fully.

You may only be able to play selected games when claiming a bonus offer but the library is jam-packed full. If you're a Big Time Gaming fan then you'll be pleased to know that there are loads of Megaways trademarked slots to choose from. Of course, there are hundreds of other slots from top game providers available. IGT's Da Vinci Diamonds and Rumpel Wildspins by Novomatic are some good examples.

New customers from the UK tend to have their own bonus. At times they're lucky enough to receive no deposit bonus spins. What's more, the free spins usually can only be used on the popular 5-reel slots like Starburst.

When it comes to existing players, the online casino is less transparent. We would suggest signing up to their newsletter though as they announce all their deals through this. In our experience, they are constantly updating their special bonus offers.

Traits of a Good Gambling Site

Nowadays, most casino sites look very similar. To many, the end-user is not the slot player exclusively. This is why what you’re looking for might not be available at most casinos. However, there are niche gambling sites that specialise in slots. We can confidently call them slot sites. And as with any other category, some are better than others, and we call them “top slot sites”. Here are the traits that top slot sites have in common.

Casino Game Filters

Game filters, or in specific, slot game filters are taken for granted, and the only time they are appreciated is when they are not available. The option to filter games based on their features, such as bonus games, free spin bonus rounds, multipliers or even the ones that come with a unique feature such as the Avalanche, is probably the best way of exploring new content.

Slot sites, meaning the casinos that put the spotlight on slot games, have more than a thousand slot games. This vast game collection is rarely used to its full potential, but when it is, it’s usually because of the wide array of slot filters available. Just to give you an idea of how diverse game filters can be, here are a few:

  • Free Spins
  • Branded Games
  • Gamble Feature
  • Multipliers
  • New Games
  • Wild Reels
  • Win Both Ways
  • Sticky Wilds
  • Bonus Games
  • Expanding Wilds
  • Re-spins
  • Random Wilds

Not many slot sites offer the full breadth of these filters, yet, even with a handful of these, the gaming experience is significantly improved.

Slot Game Quantity

It’s a common saying that out of quantity comes quality, and we can’t argue with that. It’s one of the reasons why we have so many online casino reviews. Nevertheless, we also have quite a lot of online slot reviews. A big game collection offers you more options to choose from. The filters will get you there, but if there aren’t enough slot games available, the filters can’t help much. Today, there are dozens of online casino game providers, some part of big software groups, others are still trying to breakthrough. Usually, an online casino site will offer games coming from the most popular game providers like NetEnt, Microgaming, Play’n GO and Betsoft Gaming. The top slot sites go above and beyond and include the games of Red Tiger, Yggdrasil Gaming, Pragmatic Play and the full Scientific Games portfolio.

The number of games may vary due to licensing and regulations.

Good Progressive Jackpot Slot Collection

When we say a good progressive jackpot slot offer, we mean the full collection of at least the most popular jackpot games. Betsoft Gaming’s jackpot slots will not suffice. You want access to the record-breaking Mega Fortune and Mega Moolah. You want to be able to play Holmes and the Stolen Stones, but also have access to IGT’s jackpot games like Siberian Storm.

Sure, you can still go back to video slots, and enjoy Reactoonz, Gemix or Book of Dead, but nothing beats the thrill of hunting for a progressive jackpot. Only a small number of slot players have managed to land the jackpot prize, but those that have, are well aware that the patience is worth it. Then again, we have to warn you of the threats of tunnel visioning on a progressive slot. They come with lower than average return to player, which means, they can be a costly “type of entertainment”.

slotsmillion casino logo
SlotsMillion Casino
star-full-iconstar-full-iconstar-full-iconstar-full-iconstar-full-icon
  • slots-iconHuge range of slots
  • credit-card-iconTrusted payment methods
  • bonus-iconRegular promotions and bonuses
Welcome Bonus - RoWThe Finest Slot Collection On The Market
Good
safe-icon
Bonus Terms and Conditions

Progressive Jackpot Tracker

Speaking of jackpot slots, if you happen to be a “jackpot hunter”, you will surely like the jackpot trackers online slot sites have to offer. They give you real-time data on what’s the jackpot slot you should go for. However, don’t go blindly into this “competition”, who will get first to the top. If you don ‘t like the game, just don’t play the slot. Nevertheless, it’s good to know where most players are headed. This, in turn, makes the jackpot grow even faster, but because more players are into it, somebody will win the jackpot and win it very soon! It’s basic supply and demand, there’s one jackpot, and thousands of slot players!

Access to Slot Casino Bonuses

We’re not talking about the welcome bonus every new customer is entitled to. Slot bonuses have become a staple, and are a foundation in every VIP and Loyalty Rewards program. Since slot players wager a lot of money (read, play a lot, not deposit a lot), they get to see the most benefit out of these loyalty programs. Then again, even if you’re not a VIP player, you will have access to frequent slot casino bonuses. The top slot sites offer various promotions that target slot players in particular. These may include, but are not limited to, slot tournaments, slot races, random cash drops, which you take part in by playing the qualifying slot games.

Some slot sites go further and offer these bonuses in the promotions page, that are readily available. Nevertheless, check the terms and conditions, looking for a term that prevents players from claiming a bonus on every deposit. This means that you might have to one, two or even three deposits with no bonus before you become eligible for one.

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Energy Casino
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  • dealer-live-iconWide range of live games
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  • bonus-iconRecurring weekly promotions
Welcome Bonus - UKDeposit £10, get 50 No-Wager Spins
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18+. Open to UK residents who have registered through the relevant affiliate link after 04.01.2020. T&Cs apply. Get 50 EnergySpins (ES) on Book of Dead™️ (£0.10, valid 7 days) with your first deposit. Offer not available for any deposits thereafter. Available once per customer. Opt-in by choosing the Welcome Offer tab before making your deposit, otherwise select "NO BONUS". Winnings from ES carry no wagering requirement. Max winnings are capped at: £100. Irregular gameplay may affect eligibility. BeGambleAware.org. Play responsibly. #ad

On-site Slot Information and Details

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Unibet Casino
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  • jackpot-iconProgressive jackpot slots
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Welcome Bonus - EUDeposit £10, Get £40
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18+ begambleaware.org. New Customers only. Minimum Deposit €10 and Get €40 in Casino Bonus Funds. Debit card only. Up to 50x wagering, game contributions vary, max. stake applies, new customers must opt in and claim offer within 24 hours and use within 30 days. See full terms. #ad

Any information related to the slot games can help you find a game that best suits your preferences. However, the number of online casino sites doing this is going down with every platform update. To some, it’s just another added expense, to others, it’s seen as an opportunity to improve their player service.

The RTP, the problems with the game, the game alternatives, all of these can in some way help you pinpoint the best slot game for you. Note, as we said, they’re extremely rare, so we recommend you to not raise your hopes if this is important to you. Then again, if you do come across a slot site of this kind, you’ve found a hidden jewel.

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Unibet Casino
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  • jackpot-iconProgressive jackpot slots
  • paypal-iconAccepts PayPal deposits
  • bonus-iconRefer a friend promotion
Welcome Bonus UKDeposit £10, Get £40
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18+. BeGambleAware.org. New Customers Only. Minimum deposit £10. 50x wagering requirement apply. Bonus will expire 30 days after opt-in. Further T&Cs apply. #ad

Online Casino Slot RTP Audit Reports

Security is still an issue, and it will always be. To make players more relaxed, and to reassure them they are playing fair slot games, online casinos hire independent software testing agencies. Moreover, these audits are carried out on a monthly or quarterly basis. This guarantees players like you are getting a fair chance at winning playing slot games. Some of the seals that you want to look for are:

Money Management at Real Money Casinos

As we have mentioned throughout this article slots are addicting. This is even more so for online slots games as they are much easier to access. You won't have to take a trip to Vegas to get a similar gaming experience! Nowadays they are also fully available on mobile to play on the go too. Usually, when we speak about table games and strategy, we look into wagering strategies. When it comes to gambling on slots games - there are none. To top it off, they are one of the hardest games to beat the house. Thus, managing your money during gameplay is essential. 

The biggest advice we can give you is to keep your gaming bankroll separate from your personal one. Gambling on slots can lead to big cashouts especially when playing on jackpots. You can just as easily lose everything in one go. If you do have some money to spare, then make sure you know when to quit. Some games such as progressive jackpots are easy to get hooked on due to their huge pay-outs. The best option is to set a limit and stick to it.

The vibrant colours and state-of-the-art interfaces will reel you in. The in-game bonus features will keep you engaged. But always play at slot sites with some caution. Luckily, there are enough promotions to boost your bonus funds from time to time. 

Slots Sites FAQs

How can I win real money at slot sites?chevron-down-icon
Unfortunately, there is no way to predict when slots machines will land a win. Of course, we would suggest choosing your game wisely and sticking to reliable slot sites. It will also depend on your personal choice. Slots with low volatility payout more often but with smaller wins. If you are looking for huge payouts then you'll need to stick to jackpots and hope for the best.
Can I play at slot sites via my mobile device?chevron-down-icon
In most cases yes. At least with any of the top slot sites we have listed you won't have any issues. Most offer a mobile-friendly interface which can be accessed instantly across all devices. Some like bet365 even have an app that you can download on iOS or Android. In either case, you'll have full access to slots games on the go. All you need to do is enter your user name and password and you'll be able to bet with real money.
Is it safe to wager real money at new slot sites?chevron-down-icon
Not always. Some new slot sites are known to have issues. We suggest checking back to our new casinos' page for a list of sites we recommend. Stick to any of the ones we mention and rest assured that you're in safe hands.

Other Slots Casinos

Our experts gave you the best slots casinos online. These went through a strict review process and you can trust our results for the top choices.

Here is a full list of online slots casinos as well.

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Meet the Author
As the Editor-in-Chief of CasinoCountdown, I'm always on the hunt for fresh casinos and slots. After all, it's my job to ensure you have the facts you need to make the right online gaming decisions for you. Once I find something I think you'll like, I always try it out myself. Only the best sites and games are given my seal of approval. You'll also find me sharing my casino knowledge on our guide and strategy pages. With many years of experience in the iGaming sector, I'm sure I can help you.