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Best Online Slots UK 2022, Review Top Slot Sites & Bookies Casino Slots

Last Update: Nov 1st, 2022
Read and compare top slot sites UK offers, promotions and free slot sites.

Casimba

1st Deposit 100% up to £200 + 50 bonus spins on Book of Dead and 2nd deposit 50% up to £50.

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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, and 50% bonus match up to £50 on your 2nd 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
Dream Vegas

100% Welcome Bonus up to £300 + 150 Extra Spins

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18+. New players only. One offer per player. Max bonus bet £5. Offer: 100% bonus match on 1st deposit + bonus spins. Value of bonus & number of spins depend on deposit amount: £20-£100: max £100 bonus + 150 spins on selected games; £101-£200: max £200 bonus + 100 spins on selected games; or £200+: max £300 bonus + 150 spins on eligible NetEnt Games. Winnings from spins credited as bonus and capped at £100. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds contribute to wagering requirement. Bonus funds expire within 30 days; bonus spins within 72hrs. Affordability checks apply. Terms apply. Please gamble responsibly. BeGambleAware.org."
Leo Vegas

100% Welcome Bonus up to £200 + 100 Extra Spins

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18+ begambleaware.org, Full T&Cs apply. New reg only. Opt in & deposit £10, £50 or £100 within 14 days & further 7 days to wager cash stakes 50x to unlock reward (up to £200 on first deposit). Wagering/game contributions vary. Up to 100 wager-extra spins x10p will be added to Big Bass Splash with qualifying deposit, 3 day expiry.
888

Play with £88 FREE No Deposit Needed + 100% up to £100 BONUS with your 1st Deposit

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18+ • New players only • No Deposit Offer: Claim in 48 hrs • 14 day expiry • FP wins are credited as bonus and capped at £10, exc. JP win • 50x wagering • Deposit Bonus Offer: £20 min deposit • Valid for selected games • Bonus wins capped at £500 • 30x wagering – req. vary by game • Bonus expires within 90 days • Withdrawal terms, No Deposit Offer terms & Deposit Bonus Offer terms apply. BeGambleAware
BetVictor

Wager £10, Get £30 + 100 Extra Spins

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18+ new customers only. Deposit, opt in and wager £10 on selected games within 7 days of opening new account. Get 3 x £10 bonuses for selected games with up to 40x wagering plus 100 Extra Spins. Bonuses expire in 7 days. Max redeemable from bonuses £750. 100 Extra Spins have no wagering and expire in 7 days. Card payments only. T&C's Apply. Begambleaware.org Please Gamble Responsibly.
Bet365

New Player Offer at bet365 – Discover bet365 Casino with 50 Extra Spins

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Deposit and stake £10 on eligible Casino games to get 50 Extra Spins. Time limits, game restrictions and T&Cs apply.
Paddy Power

Bet £10 Get 200 Extra Spins

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New Customers from UK & IRL only. Deposits made with e-wallets are not valid for this promo. Bonus wagering x35 on eligible games. Winnings from bonus capped at £/€500. Spins available after bonus is redeemed/lost. Opt in required. Full T&Cs apply.
Betfair

Deposit £10, play with £40 + 100 Bonus Spins

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Bonus awarded requires 50x wagering and must be completed within 7 days of issue. By taking part in this promotion, you agree with our Terms & Conditions.
21 Casino

121% Welcome Bonus up to £100

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18+. New players only. Min deposit £10. Bonus funds are 121% up to £100. Bonus funds are separate from cash funds and subject to 35x wagering requirement. Only bonus funds count towards wagering contributions. £5 bonus max bet. Bonus funds must be used within 30 days, spins within 10 days. Affordability checks apply. Terms Apply. BeGambleAware.org
Videoslots

100% Welcome Bonus up to £200 + 11 Extra Spins

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New players only. Min deposit £/$/€ 10. Account balance is withdrawable at any time, upon withdrawal, any remaining bonus spins are forfeited. 7 days to activate the spins: Bonus spins expire24 hours after activation. Full T&C apply.+18 Play responsibly.
Karamba

100% Welcome Bonus up to £50 + 100 Extra Spins

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18+. New UK depositing players only. Min. deposit: £10. Max. bonus: £50. Offer valid on first deposit. Games are given as follows: 20 games and 100% bonus upon first deposit. Another 40 games are given upon deposit on the second day after the first deposit (min £20), and an additional 40 games are given upon deposit on the third day (min £20). Winnings won with games that require deposit, have to be wagered 35x. Bonuses that require deposit, have to be wagered 35x. Gamble responsibly. www.begambleaware.org
William Hill

Get 100 Extra Spins When You Stake £10

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18+. New customers only. Opt in required 1x per customer. Fishin TM Pots of Gold only. Min £10 stake. Max 100 Extra Spins at 10p per spin. Extra Spins expire 34hrs from issue. Max redeemable £30. Eligibility rules, game, location, currency, payment-method restrictions, terms and conditions apply.

Guide to Online Slots UK

You place your bets, spin the reels... sometimes you win, sometimes you lose. That’s online slots in a nutshell, isn’t it?

Not anymore, with new bonus features, side rounds and enhanced gameplay all taking the genre in innovative and exciting directions. Here we look at how to find the very best slot games online and how your choice of online slot sites will go a long way to determining your enjoyment of the games on offer.

What’s Offered at Online Slot Sites?

  • Slot Variety: The best online slots sites will offer an extensive collection of games of differing type, from standard and progressive jackpot slots to 3D and video-based titles.
  • Casino Games: It’s always nice to have a change of scene once in a while, so slots sites that also have a casino section, stacked with games like blackjack, roulette and baccarat, are also welcome.
  • Welcome/Ongoing Bonuses: We all love a good bonus and any online slot site worth its salt should offer a welcome package to new players. But just as important are the promos that keep players coming back for more time after time; these really can make a difference to your bankroll.
  • Loyalty Programmes: Linked to the above, loyalty programmes offer players ‘replay value’ because they reward you for playing your favourite games. Loyalty points are gained and can be redeemed on free spins, reload bonuses and more.
  • Free Play Mode: It is well worth trying out a number of slot games before deciding which you want to wager real money on. And that’s why free play mode is so important; you can ‘try before you buy’!

What Makes the Best Online Casino Slot Sites?

You may want to play the very best online casino slots, but the games are only part of the equation. Consider your user experience: if the site takes an eternity to load, or is a nightmare to navigate, then your enjoyment is going to diminish exponentially.

Also, be sure to ponder whether this is a trusted site or not. Make sure it has security provisions in place to protect your personal data and read impartial reviews about the site before making a deposit.

The best online slots UK platforms will hand out handsome bonuses to new and existing players, but a word of caution: all that glitters isn’t always gold. Think about the wagering requirements attached to any offer and how realistic they are to ‘play through’.

And once you have used that welcome bonus, what else does the slot site offer? Are there ongoing promotions that tickle your fancy? Some sites use welcome bonuses to hook new players, but then offer very little from that point on.

Finding the Best Online Slots

Here's what you should factor in when drawing up a checklist that identifies the best UK online slots.

We’ve mentioned bonuses and promotions already, and while it is tempting to focus on the ‘free stuff’ there are plenty of other items for consideration. Think about payout percentages. These Return to Player (RTP) rates determine how often you can expect to win when playing a particular slot. It’s not a perfect science, but the percentage outlines your win ratio if playing an infinite number of times. Some slots are slow and steady earners, while others offer high variance where wins come rarely but at a higher rate of return.

There are some names in slot game production that are almost a guarantee of quality. Software developers such as NetEnt, Microgaming and Playtech continue to produce the most playable and innovative games around. If a slot site carries an extensive collection of their releases then you won’t go far wrong.

Another thing to think about when considering the best of online slots is how the game(s) look on your preferred device. For instance, some older sites haven’t really been designed to be compatible with newer smartphones and tablets, whereas others have mobile playability in mind. If you plan on playing slots on your phone, make sure the site has been built to make the most of the technology.