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The following list is our guide to the 10 best online slots sites for UK players in 2021. Every one of them has its own brilliant features.
Our guide highlights one reason you have to visit each of the superb slots sites in this piece (and that’s before we even mention their slots sign up bonuses).
Best online slots sites in the UK in 2021 for Exclusive Slots
Exclusive slots are one of those key features that can lead you back to the same UK online slots sites time and time again. The bet365 slots site has an abundance of titles you won’t find anywhere else housed in its bet365 Originals stable.
There are some truly inspired themes here, with Zombie Pirates From Outer Space, Dr Elemento’s Polar Plot and Mariachi de los Muertos offering a window into the kind of games on offer.
Best online slots sites in the UK in 2021 for Finding The Best Slot For You
Finding the right slot for you is about more than typing its name into a search box. Yet some UK slots sites don’t even have a search option to help you find what you’re looking for amid the hundreds of games they offer.
What makes 888 Slots so great for finding the slot you want, alongside its search facility, is the checkboxes you can use to search for types of slots rather than just a particular title.
This allows users to make searches for the likes of 888 exclusives, slots with 25+ paylines, or slots by software houses like Netent and many different combinations. It’s an innovation we’d like to see more of as it allows you to find the slot that’s best for you.
Best online slots sites in the UK in 2021 for Customer Service
There are all kinds of reasons that even the most experienced slots player may need a little help from their online slots site from time to time. Maybe you’re having trouble triggering a promotion, need help verifying your ID, or setting up deposit and withdrawal methods, for example.
In such circumstances having someone to speak to is really reassuring and Unibet offer support to account holders 24/7. Unlike their few rivals who can match this commitment to customer satisfaction, this relates not just to live chat, but to telephone support from actual human beings. Bravo Unibet.
Best online slots sites in the UK in 2021 for Slots Demo Play
The reasons to seek out demo slots are plentiful, from playing demo slots for fun to using them to improve your understanding of gameplay in a particular game before putting up your hard-earned cash to play real money slots.
Yet pretty much all UK online slots sites have an oddly inconsistent offering when it comes to demo play options, which are often either hard to find or simply not there for many of their titles.
Step forward 32Red Slots, where the demo play option is clearly labelled for every single slot on the site, making it easy to enjoy slots demo play on any of their titles.
Paddy Power Slots
Best online slots sites in the UK in 2021 for Jackpots
“Winning a daily jackpot on Paddy Power isn’t special,” as the self-styled ‘Special One’ Jose Mourinho reminds us in his advert for Paddy Power games, because you have the chance to do so when you play Jackpot slots games each day on the site.
However, when it comes to online slots sites in the UK Paddy Power is special, with Jackpot slots feeding into six progressive Jackpots on the site, including four Must Drop Jackpots, each growing constantly.
Alongside their regular daily Jackpots, which include prizes that must drop before a certain time or win amount, there’s also slots which form part of the Jackpot King network, where the biggest Jackpot at the time of writing was heading towards the £3m mark.
Best online slots sites in the UK in 2020 for Game Information
Betfair Slots is brilliant for giving slots players all the information they need to know about every slot on the site in simple, digestible fashion, as you might expect from an operator that started out its life demystifying sports betting by allowing users to be the bookie to lay bets on its exchange.
Click the ‘i’ next to every slot on Betfair and you’ll find an excellent introduction to how to play the game in question. There’s also all the key info more knowledgeable players like to know, including the software house that made it, the RTP (return to player) % and the bonuses and features on offer.
Best online slots sites in the UK in 2021 for Offers for Existing Customers
There may be other UK slots operators with more glitzy sites than Betfred, but ‘Fred’s long been known as The Bonus King and existing slots customers are some of his most favoured courtiers.
Most UK online slots sites have some form of offers for existing customers, but the sheer variety and volume served on the Betfred Slots promotions tab makes this operator standout. From daily free spins promotions to massive cash giveaways, all you need to do is opt in and follow the instructions.
Best online slots sites in the UK in 2021 for Slots Tournaments
Playing slots online isn’t just a matter of man versus machine. Slots tournaments offer you the chance to play in competition with other members of online slots sites in the UK to win cash prizes or free spins and BGO is the place to go if you’re a keen contestant of slots tournaments.
Why? The diversity of tournaments and the regularity with which the daily and weekly tourneys begin blow other online UK slots sites out of the water when it comes to this aspect of slots gaming.
Best online slots sites in the UK in 2021 for online/bricks-and-mortar connectivity
Many online slots sites in the UK offer some kind of tie-in with their physical shops or casinos but none do it as well as Grosvenor. Sign up to their Grosvenor One initiative in one of their more than 50 UK casinos and you can get a bonus for activating the account online.
Other benefits include having a single wallet to use in-casino and online, the ability to deposit and withdraw from your online account in their physical casinos and regular exclusive online offers and slots bonuses for Grosvenor One members.
Best online slots sites in the UK in 2021 for: Number of slots
If you’re the type of online slots player that gets bored of a game easily and takes pleasure in being able to dip in and out of a diverse range of themes, features and volatility levels try BetVictor.
BetVictor Slots boasts an incredible four-figure serving of slots with more than 1000 titles available to account holders. If you play one slot a day that’ll keep you going for well over two years.
Want all the best online slots bonuses and sign up offers in one place?
Read our rundown of the best slots deposit bonus offers, sign up offers and welcome offers.