The Best Slot Sites UK: Slots Online Guide 2020

Slot sites are the best way for players to engage with the best games that big top casinos have to offer to their everyday gaming routine.

Our team have come up with the best online slots that all types of players need in their everyday gaming routine. We have compiled a large variation of the best slot sites around within the tables below, covering large reviews of everything they have to offer to your gaming experience. Knowing where and when to play is important, to ensure you are getting every bonus and offer you deserve. Leave the hard work to us and get the latest down below!

UK's Best Slot Sites for 2020

Our Favourite slot sites for June:

Elf Slots

500 Free Spins

Read review
18+, new UK players only, be GambleAware
Significant terms | Full terms apply.
18+, new UK players only, be GambleAware
Significant terms | Full terms apply.
Terms and conditions

New players only, min deposit £10, £8 max win per 10 spins, max bonus equal to lifetime deposits (upto £250), 65x Wagering requirements and full T&CS apply here.

Bet365 Casino

100% First Deposit Bonus up to £100

Read review
18+, new UK players only, be GambleAware
Significant terms | Full terms apply.
18+, new UK players only, be GambleAware
Significant terms | Full terms apply.
Terms and conditions

Deposit min. £10. Applies to first deposit to Casino only. Max. bonus £100. 15x wagering (game weighting, table coverage and max. bet rules apply) on deposit and bonus to make the bonus balance withdrawable. Time limits and T&Cs apply.

888 Casino

£88 No Deposit Bonus

Read review
18+, new UK players only, be GambleAware
Significant terms | Full terms apply.
18+, new UK players only, be GambleAware
Significant terms | Full terms apply.
Terms and conditions

New players only • Claim in 48 hrs • 14 day expiry • FreePlay (FP) wins credited as bonus & capped at £10, exc. JP win • Valid for selected games only • Bonus wins capped at £500 • 50x wagering – req. vary by game – in 90 days • Withdrawal restrictions, T&Cs apply.

Divine Slots

500 Free Spins

Read review
18+, new UK players only, be GambleAware
Significant terms | Full terms apply.
18+, new UK players only, be GambleAware
Significant terms | Full terms apply.
Terms and conditions


Filter by

  • Order by

Temple Slots

Read review »
24 Hour Withdrawal Times
Mobile Friendly
Live Chat

£150 Bonus + 150 Spins

First 3 deposits only. Min dep £10 (£20 3rd Deposit). Max cumulative bonus £150 and 150 spins. Bonus match amount and spins game eligibility vary per deposit. 50x wagering on Deposit + Bonus, 50x on bonus spins, 10x max conversion, £5 max bonus stake. Full T&Cs Apply.

Kerching Casino

Read review »
Unique software integration
Download and Instant play

Up to £500 Deposit bonus + 150 Free Spins

First 3 deposits only. Min £10 deposit, Max total £500 + 150 Free spins. Wagering Requirements 30x (deposit and spins). Selected slots only, Full T&C’s apply.


Read review »
24/7 Live chat
Mobile-optimised casino
Fully UK licensed

Wager £10 Get £70

The New Player Welcome Bonuses are only available to players who create an account and make their first deposit at Casino Cruise. You may only claim one Welcome Offer (Welcome Package or Live Casino Bonus). Once you have claimed one, you will not be eligible for the other. To be eligible to claim the New Player Welcome Bonuses, players must deposit a minimum of £10 in one instance, for each bonus. New Player Welcome Bonuses will only be offered on your first four (4) deposits, unless otherwise stated.

Swift Casino

Read review »

100% Bonus Upto £50 + 50 Free Spins

First Deposit Only. Min. deposit: £10, max. Bonus £50. Game: Book of Dead, Spin Value: £0.1. 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). Free Spins must be used before deposited funds. First Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies.

Hyper Casino

Read review »
Wide variety of games
Generous welcome offer

Up to £300 Bonus

New Players only, min deposit £10, Wagering 45x Bonus, Max Bet £5 With Bonus Funds. Live Casino Play Excluded With Bonus. 100% up to £100 Bonus on 1st Deposit. 50% up to £200 Bonus on 2nd Deposit. Welcome Bonus Excluded for Players Depositing with Skrill or Neteller. No Max Cash Out on Deposit Offers. Eligibility is restricted for Suspected Abuse.

Regent Casino

Read review »
Series of Reload Deposit Bonus
Low Wagering Requirements

£200 Deposit Bonus

Full T&Cs apply. New Customer only. 35x wagering requirement.


Read review »
Great Software Providers
Mobile Friendly Design
Live Chat

100% up to £25 + 25 Free Spins

terms and conditions apply. New players only. 18+. Min deposit £20. Wagering requirement applt 35x. Offer valid 72hr. See full Terms here.


Read review »
Great software providers
Mobile Friendly
Games Proven Fair

Upto £100 Bonus + 100 Extra Spins

Terms and Conditions apply. New players only. 18+. Min deposit £20. Welcome package split over 4 deposits 35x wagering applies to match up bonus.


Read review »
Great selection of software providers
Great mobile design
Live chat available

£50 Welcome Bonus + 50 Free Spins

Terms and Conditions: 18+. New players only. 100% bonus on first deposit up to £50 plus 50 Free spins. Free spins are playable on Starburst and will be credited in increments of 10 spins per day for 5 days following first deposit. Min. first deposit £20. Max bonus £50. Max bonus bet £5. Max bonus cash-out £500. Wagering requirement of 40x to cash out. Bonus expiry 30 days. Free spins expiry 2 days. Game restrictions apply. Further Terms Apply.

Cosmic Spins Casino

Read review »
No Withdrawal Limits
Fast and Expert Customer Support
Mobile Friendly

£150 Welcome Package + 150 Spins

First 3 deposits only. Min dep £10 1st and 2nd deposit, min £20, 3rd. Max cumulative bonus £150 and 150 spins. Bonus match amount varies per deposit. Spins awarded on one of four chosen games. 50x wagering on Deposit + Bonus, 50x on bonus spins. 10x max bonus conversion or £5,000, whichever is lower. £5 max bonus stake 18+ T&C apply

SlotNite Casino

Read review »
24/7 Live chat
Fully mobile-optimised site

£250 Bonus + 100 Bonus Spins

18+. New players only. One offer per player. Min Dep £10. Max bonus bet £5. 1st Dep offer is 100% up to £250 + 100 Bonus spins on Aloha Cluster Pays. Spins expire after 10 days, funds after 30 days. Bonus funds separate to Cash. Wager Req of 35x Deposit + Bonus apply. Terms Apply.

Crazy King

Read review »
Top software providers available
Great user interface
No wwithdrawal limits

Play with up to 500 free spins


Slot Sites With The Highest Payouts

Slots offer themselves as one of the best forms of entertainment available online. Regardless of them being entertaining, players will also need to ensure that the games they are playing will allow them the best possible opportunity of attaining some real money wins in the process!

There is a way for players to increase their likelihood of playing slots online with a high payout, and thats with selecting slots that offer players a high RTP. Selecting a relatively higher RTP (Return to Player percentage) gives players confidence that money wagered will be returned back in the long term hours played within the game itself. This is determined by collating the average money returned from a pool of players (during a set period of time) in a certain slot game. Due to this factor, software providers of the games themselves tend to change up the percentages quite a lot, from each audit measure of the game.

When selecting a game, it is recommended that players choose games of 96% and above, due to that percentage being above average in RTP terms. Meaning players are more likely to be successful in retrieving more wins within their dedicated times to a certain slot.

For players reading this review, we definitely suggest that slot sites with high RTP percentages are the perfect combination with an online casinos bonus funds promotion. Teaming up the best & newest online slot games with a no-deposit bonus or free spins, guarantees that real money can be made for free! Within our guide, we will be sure to include some high payout slot games, to give you some guidance and direction in what slot games to play once you have selected your best online slot sites choices.

Do not forget to team up your high payout slot games, with some fast payout/ fast withdrawal casino payment methods too, to optimise your playing time to the best extent possible! We do also have a little extra to add in our selection of casino slot sites- they are a majority of fast paying casinos too for the win!

The Best Online Slots Low Wagering Requirement Bonus

It is all well and done selecting slot sites with the best payout percentages and withdrawal speeds however, another part that must be considered is the wagering requirements that are involved within the slot sites. Picking slot sites that have large wagering bonuses means, that players will need to work harder to keep what they have won and be able to withdraw it. Therefore, during our testing evaluations of the casinos themselves, we have an aspect of our requirements that we try to include on our slot sites search- low wagering requirements.

Generally speaking, low wagering requirements are those that do not exceed 30 times. Medium wagering requirements are anything from 35 times up to 60. We try our best to keep them as low as possible. As the larger they are, the harder it is for you to keep larger quantities of your winning amounts.

Slot Sites With No Wagering Requirements Exist!

It may seem hard to believe, yet slot casinos do offer you the new players with no wagering bonuses! These usually consist of complimentary free spins that you can use either on a selected number of games or you can completely go wild and have at it.

There are also a selected few slot sites that provide small amount of bonus funds in their no deposit bonus. This usually entails of bonus funds such as £5 offers within slot sites, which is definitely better than nothing. Especially as you will get to immediately cash out everything that you have earned that day! Please note, although your bonus funds are completely free in no wagering bonuses, you will have a strict time limit and a quick expiry date (depending on the slots sites), meaning its always best to check what timing you are up against. 24 hours to 7 days is the range, however 7 days is usually pushing on generosity of a slots site!

Play at New Casino Slot Sites For Better Offers

New players that take advantage of the new casino sites and the online slots offered there, are definitely setting themselves up for a good start, in terms of claiming more larger cash funds. The reasons for this, is that new slot sites will need to attract players away from the bigger authoritative online slot pages and let them take the gamble with them instead! Therefore the best way to steer interest is by going all out and offering bigger and even more brighter bonuses!

Usually new players will find everything from match bonuses to large clusters of free spins within welcome bonuses. In addition to this, you will have greater lengths of maximising the most out of your bonus funds, as usually the expiry dates are from two weeks to 30 days.

The Best Online Slots For Real Money Wins

So as promised, we have put together for you the new players, a small selection of games that we would suggest you play for high payout real money wins. As mentioned above, larger wins come from playing higher RTP slots, as they increase your likelihood overall of getting back the money you wagered and more.

Nextgen’s Starmania: RTP 97.87%

A lower key software provider, however this game definitely puts Nextgen on the map! This game features many bonus rounds that appear in the momentum of the game. In addition to this players can try out the gamble option feature in the game too.

NetEnt’s Mega Joker: RTP 99%

This game made waves within the online slots community, due to its extremely high return to player percentage. This game is very old school and definitely would favour the new players who like vegas style themed games. In addition to this, even though it has a 99% RTP, there is a progressive jackpot that can be triggered randomly by any player who plays. This is very unusual for a game with such a high RTP, as usually games providers lower their percentages to make up for the jackpot stakes.

Playtech’s Goblins Cave: RTP 99.32%

This game is your typical treasure theme game where players need to win as much treasure as they can within the winning combinations. The wilds and special features in this game are highly engaging and fun to play.

Game Variations in Gameplay

Of course, any slots gaming fanatic will know of the slots variations that are up for grabs by players in the slot site realm. Therefore, it is only right for us to give you the complete low-down and provide to you all things slots related, to aid you in making the right choice amongst the variations. You do not want to be playing and using up your bonuses, then coming across something you would have rather played more.

There Are Different Types Of Slot Machine Games

So yes, within your slot experience, there are different slot games that you can try. Some will be better than others for you. But it is vital to know them all, to know what you like, as we mentioned above.

You may already know that the first slot machines where in fact invented within the 20th Century and were the classical kind that have stuck around until today! They are the 3 reel variations, with smaller amounts of paylines to play with. In addition to this, the symbols usually were fruit symbols and other simplistic Vegas styled ones too.

The more evolved versions include the 5 reel variations, which are usually considered and classified as video slots nowadays. Video slots usually have a larger theme behind their games. Also sometimes basing their storylines on the mass movie culture that gets released in movies aTV shows and in theatres. Therefore they are usually more liked as the game is much more physically spiced up, not forgetting to mention the bonus features that are integrated within the gaming interface too.

Progressive jackpot games are the slot games that everyone talks about. This is due to the large amounts of money that is available to be won, if the lucky player manages to trigger the jackpot of the game. These are great games to play, as it brings all the players together within that slot game community and has them contributing their stakes for an overall win.

Some of the large games within the current slots sites trend is the Mega Moolah series. This game gave a lucky winner the jackpot record of almost 13.5 million straight in their pocket. Its for this reason that players enjoy playing progressive jackpot games and literally go out seeking them in the casino slots sites.

The Symbols And Their Variations

The symbols available for players when playing slot games at a slot site, usually consists of three main types. A wild symbol, a scatter symbol and finally a Multiplier. These symbols are known to be majorly featured all together within the video slot game versions. Therefore if players wish to get more winning potential within their gaming habits, they should try out slot games that have all three involved in the game theme.

Wild Symbols

Wild symbols are known for their ability to contribute in winning combination sequences on slots reel. It not only completes the combination of symbols within the new players reel, it can also multiply winning variations from that very combination i.e. increase the value of the usual win from the first placing sequence!

Scatter symbols

These symbols can give you the best of both worlds, as they not only increase your likelihood of winning combinations, they also give you free spins in the mix too, which you can further use to mix up your reels and get you some payouts that are higher than expected too. Some games also use scatters to unlock secret levels that a slots game has to offer players, meaning any wins that are won from the mini bonus rounds are extra bonus funds to keep when the game is over.


Multipliers are the symbols that increase the value of your initial winning combination. Land these bad boys within your sequence and it will mirror the winning symbol sequence and immediately add to its value. Some multipliers can reach up to 15 times more the starting number. Meaning slot games just got even more interesting right? A slot game famous for this multiplying effect, is the Gonzo’s Quest game .

There are more than these of course however these three symbols appear consistently and the most in a majority of selected games. When it comes to a slot machine and all the special features you can squeeze out of them, lets just say that the slots sites are your oyster and there never really is any limit in the process of playing and finding new ones to offer you fun gaming attributes.

Software Provisions And Settings

The advantages of playing within a slot casino online, is the vast array of software advantages that it brings you in the momentum of your gameplay. You will have access to everything you can ever imagine and more, just by playing on one of the slot sites we have arranged for you.

Each software provider has their own unique hacks to how they integrate features within their gaming settings. Some online slots sites will provide personalisation within their games from providers. Meaning players can actually use these characteristics to add to their gaming flow and chances of winning. A good example is how Microgaming included bet levels and adjustments within their games. This makes players stake to the levels that they find comfortable. In addition to this the automated setting within the slots is another Microgaming feature and it allows players to continually bet a levels they set, with minimal effort in the process.

Quick spin is another feature that players can use, to make their gaming more faster, playful and really jazz the game momentum. Maybe new players will take a while to build up to this level of comfort in their slot habits, but it is definitely something players can work up to it for sure. However automated versions like spin and quick spin, maybe will make some players feel completely out of sorts with the game and actually not doing that much at all in terms of playing. Therefore would rather do each spin manually and take control of their games.

The plucky Casimple team find that slot games are a great way to contribute to a players wagering requirement as most times out of ten they always include that within the terms and conditions of slots sites. However, we do recommend players to check each terms and conditions of the bonus offers within each site they play at, as it will allow any time wasted in gaming efforts and give the full low down on the selected games (if any).

Other aspects of slot games that attract players, is the graphical finesse available at hand. The software providers put cutting edge and seamless graphics within the slots. Particularly the video slots that are based off movie culture and recently released films-as they have to do it justice to attract the fan base associated with the movies etc. In addition to this, what software providers tend to incorporate within newly evolved game releases, is the integrated cutting edge graphics that reflect a high definition quality. This usually allows for players to really experience all the qualities of the game in fullest form and also play the run through of the game on many device like mobiles, tablets and desktops. Slot gaming is highly important for new players, therefore software producers try to get it right every time!

The Slot Software Producers Players Need To Know About

The online slots industry now can be difficult to comprehend and select from, for new players. This is due to so many claiming the same and how saturated it has actually become. Therefore, we though it best to provide to our readers a sense of guidance and to essentially pick out a quick top few for your benefit. Online casinos and gaming experience are great when you pick all the software components- and do it right!


NetEnt have created a total of 250 slots within their time since conception in 1994. Their most popular slots include the Gonzo’s Quest and Starburst. Their superior graphics incorporate clean and crisp surrounding backdrops, characters and sound systems. The game themes that come into mind from this provider are innovative and completely unique, meaning players will never feel like that have ‘been there and done that’ if you know what we mean?

In addition to this, their gaming status is very much certified and backed up by all top three licensing bodies: UGC (UK Gambling Commissions), MGA (Malta Gambling Authority) and the GGA (Gibraltar Gambling Authority). All games that they produce are of the best security and safety, meaning they pass all the fairness and RNG testing algorithms (Random Number Generator), therefore players are beyond safe and can very much look forward to every title made by this establishment!


Another leading software provider is Microgaming, players will find that the gaming catalogue available from them is of the highest on the market! With 100 games, you can say they are very much a software provider that never sleeps and always are the first to grab opportunities that they see , from movies e.g. Jurassic park, TV shows e.g. Game of Thrones etc.

They are known to release around 1-2 games every month! Meaning players who truly love the slots and selected games that Microgaming provide, will never truly be disappointed and always kept very busy indeed.


Playtech was conceived in the late 20th century, players will find that there is a selection of 330 slot games at their command. In addition to this due to popular title releases such as King Kong and Gladiator and other classical casino games, the gambling community view this gaming producer as one of the most all round candidates for a complete online casinos gaming experience. Therefore players who want a bit of everything try to find a casino that caters mostly to Playtech.

Online Slots Need To Be Tried Today!

Our recommended slots and selected games within this guide where all for a purpose of entertainment, to you the potential new player. We suggest players try everything they can from the reviews that we have compiled and get out there and play today, as there is no time to waste!

Do not forget to utilise the free play options that come available to players within the slot sites. This is perfect to trial out what the sites have to offer and then you can gauge out for yourself if you see a future with this online casino establishment. In addition to this, the bonus no deposit options that come with casinos are another great way to try out an online slot site with no strings attached. In addition to this, they also give you the chance to come out of there with some real money to your name too. Now, what is better than that really?

More reasons to justify that the online slot realm is precisely what you need right now.

Slot Frequently Asked Questions

What are the best Online slots to go for?

The answer of this question is entirely based off each individual player that is involved and wishes to play slot gaming. Each player will have a set of goals and ambitions to achieve within their playing experience and therefore the site you select will be based off these goals.

Players who want a large cashflow for example, will look to a sites that give large bonus funds within a first deposit. Others will be seeking graphical finesse and therefore wants all the best software providers in one site. The options are endless.

Can I play slot gaming for free?

This will depend on the route you take it down. You have access to free play variants of the slots, however when you play them, you will not have access to any real money wins in the process. On the other hand, playing with the bonus funds received from the promotions within each separate site, will also give you access to playing for free with a chance of getting some real money wins!

The no deposit bonus funds are great to use in conjunction with the free slot gaming as you play with bonus funds that have no strings attached! Definitely a good idea if you ask us!

Are all the sites suggested user friendly on mobile devices?

Players will find that the slot sites are all compatible with mobile and potable devices, due to the integrated HTML5 software that has been developed within casinos. New slot pages especially have to ensure they feature all the latest technologies and compatibilities to make the gaming experiences better for their gamers and attract new customers all together! Meaning you can play whenever and wherever you wish. The slot gaming evolves around your lifestyle!

What is the minimum first deposit usually asked of new playing customers?

The minimum first deposit asked of customers when registering begins from as low as £1 and goes all the way up to £20. £20 is usually an appearance in the high max bonus/large match bonus promotions, meaning if they give you more, they also expect you to deposit more in the process also!

Do free spins come available in all new casino slot pages and can you play them on every game?

Usually, playing customers will find that they are many free spins offers when joining each and every casino slot site. However, the selected game choice that they are linked to will entirely depend on the site themselves, as usually if you attain a free money bonus, rules tend to be far more stricture and games that can get played will also get assigned.

However for the bigger bonus funds that do require your input of a first deposit will also most likely be really loose and generous on the slot choices that are up for gameplay to redeem your wagering requirement and some real money wins!

What is the best way to win online slot gaming?

We would suggest that the best way of winning your online slot gaming is by first and foremost, understanding the game rules that come associated. Knowing the game inside out will significantly help any player in making sure that they have the best chance of winning. This can be achieved by using the free play variant available when you play.

In addition to this, ensuring that you utilise some bonus funds in the mix, be it by a first deposit welcome bonus or free money bonuses like free spins etc. This will also allow you to go in with less risk and have less to loose that purely relying on your first deposit with no associated bonuses.

Do choose a slot that boasts a high RTP as this will also statistically help you in the long term relationship of you playing. Players that play high RTP slots increase their likelihood of getting back what they wagered and more when they play.

How do Casino slots work?

Casino slots have many different settings that you can play with and adapt, to find the one that suits you the most. Usually they will either have 3 or 5 reels (classical and video) and each type of slots will provide different gaming opportunities. The symbols in the 5 reel variant are more vast with different settings and therefore can make the themes far more interesting than classical 3 reeled ones. Therefore we highly recommend that you try out both styles within free play options, to find out which one is the best for yourself!

Are the suggested casino slots fully safe to play on?

All the options that we have provided are fully safe and secure to play amongst. This is due to the thorough safety checks that we do, to ensure that new customers can put all their trust in them when playing. We never suggest a slots site without it having a fully licensed background behind it with the appropriate audit checks for game fairness and security of a users information. The SSL certificates and RNG audits have fully been passed by each competitor and therefore safe to be considered as an option in every way!