When it comes to finding some of the best online slots UK games you can experience, your choices are endless and can seem a bit overwhelming at first.
As such, finding the right casino can involve a lot of factors, such as the free spins provided in the various games, as well as the bonuses the casino offers upon registering, or for dedicated players.
Many online casinos do indeed offer excellent welcome bonuses, and free slots with some specific slots games which are on promotion at the time, or are some of the most popular progressive slots titles the casino can offer, as such, to save you some time, and headaches in the process of finding the best online slots UK casinos, we have created a list which is based on research.
The best casinos in which you can play the largest variety of casino games include:
|Casino Test||Rating||Casino Bonus||Advantages||Provider|
|Playzee Casino||5/5||up to £300*||Excellent Bonuses, Lots of slots developer variety, 24/7 Support||Visit|
|* 18+. Full T&C’s Apply. New players only. Valid for 15 days after 1st deposit. Min Deposit £20 Max Bonus Bet £5 Winnings from spins capped at £50 First 100 Zee spins 10/day. Spins must be used within 24 hours, Funds within 30 days. Bonus funds are separate to Cash funds, and are subject to 35 wagering (bonus + cash).|
|Casino Cruise||5/5||up to £1,000*||Recommended for Slots Enthusiasts, Amazing Slots Selection, Fast Banking methods||Visit|
|* 18+ Full T&C’s Apply. New players Only. £10 min deposit. £5 max bet using bonus. 40 x wagering applies. Bonus valid for 14 days. 20 Spins on Starburst games will be credited instantly + then 20 per day for 9 days. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Skrill + Neteller excluded. Always refer to Bonus Terms – www.begambleaware.org|
|NetBet Casino||5/5||up to £200*||Mobile-friendly titles, 24-hour withdrawal period, Wide variety of software provers||Visit|
|* 18+. Full T&C’s Apply. New players only. £10+ deposit required. No e-wallets/prepaid cards. 30x Playthrough on Bonus and 50x on Free Spins winnings.|
|Grand Ivy Casino||4.5/5||up to £1.500*||Great Deposit Bonus, Excellent Slots Promotions, VIP Program||Visit|
|* 18+. Full T&C’s Apply. New players only. One bonus offer per customer. Min. deposit £20, max bonus bet is £5, bonus spins on selected games only and must be used within 72 hours. Bonus funds must be used within 30 days otherwise any unused bonus wll be removed. Bonus funds are 100% match up to £300 on your first deposit, 25% match up to £800 on your second deposit, and 50% match up to £400 on your third deposit. Bonus funds are separate to cash funds and are subject to 35x wagering the total bonus, cash & bonus spins. Only bonus funds contribute towards any wagering requirements.|
|LeoVegas Casino||4.5/5||up to £100*||Free Slots Spins, Great Developers, High level of customer support||Visit|
|* 18+. Full T&C’s apply. Free spins – no deposit required & new players only. Claim within 3 days of registration & 3 day expiry. Free spins worth £0.10 each on Book of Dead, winnings paid as cash. Deposit offers available across any two deposits. Both expire 7 days after registration & have 7 days to wager once claimed. Deposit £10, £25 or £50+ & wager 35x for a cash reward. Only cash stakes qualify & wagering contributions vary. 5 free spins on Book of Dead with each qualifying deposit, 3 day expiry.|
|Casimba Casino||4.5/5||up to £2,000*||100% match deposit bonus, High level of slots variants, Excellent Payouts||Visit|
|* 18+. Full T&C’s Apply. New customers only. 1 bonus offer per player. Minimum deposit £20. Maximum bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Bonus funds expire after 30 days, unused bonus funds will be removed. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds count towards wagering contribution.|
|BetVictor Casino||4.5/5||up to £70*||Newest titles available, Quick payouts, Great Staff||Visit|
|* 18+. Full T&C’s Apply. New players only. £70 Bonus = 2 x £20 bonus +3 x £10 bonuses for selected games up to 60x wagering. Bonuses expiry 3 days. Card payments only and wager £10 within 7 days of registration. Please Gamble Responsibly.|
|Casino.com||5/5||up to £100*||Fully Licensed Casino, Free Spins, Low Wagering Requirements||Visit|
|* 18+. Full T&C’s Apply. New players only. 20 spins for AOTG slots credited on reg, 180 (20 per day) following first deposit. Spins valid for 24 hours, exp in 30 days. winnings credited as bonus funds with 20x wagering, max win £100. Min £20 dep for bonus funds. 40x wagering, game weighting/ restirctions, betting limits apply.|
|Vegas Hero Casino||4.5/5||up to £1,000*||Recommended for slots players, Best developers in the scene, Progressive Slots||Visit|
|* 18+. Full T&C’s Apply. £10 minimum deposit; 40 x wagering applies; Bonus valid for 14 days; Min. £5 wager required to activate 50 Free Spins; 10 Free Spins will be credited per day for 5 days after qualifying deposit/wager is met; Free Spins valid for 72 hours from credit.|
|Karamba Casino||4/5||up to £50*||Free Spins, 24/7 Support, Many banking methods||Visit|
|* 18+. Full T&C’s Apply. New players only. Min. deposit: 10 GBP. Max. bonus: 200 GBP. Offer valid on first deposit and applies only to new players. Spins are given as follows: 20 spins and 100% bonus upon first deposit (min 10 GBP), another 40 spins are given upon deposit on the second day after the first deposit (min 20 GBP), and an additional 40 spins are given upon deposit on the third day (min 20 GBP). Unused free spins expire 24 hours after being issued. Spins are on several of our best paying games. Winnings won with spins that require a deposit, have to be wagered 35x. Bonuses that require a deposit, have to be wagered 35x. Bets on different games contribute differently to the compliance of the wagering requirements.|
|* Last updated on 29.11.2020 by Victoria Asphor|
Online Casinos with the Best Slot Bonuses
When it comes to online casino bonuses, they come in many shapes and forms.
Playzee Casino Review
This casino offers a match bonus of up to £300, with 100 free spins.
When it comes to the wagering requirements, each bonus must be wagered x35 times the sum of your deposit plus the initial bonus amount before the funds themselves can be withdrawn.
Casino Cruise Review
This online casino provider offers a bonus of up to £1000, with up to 200 free spins.
When it comes to the wagering requirements, it’s at x40 times the sum of your deposit, making it one of the larger requirements on the market, however, all of these can be achieved through slots games.
100% bonus | 200 free spins | Extra Spins | 24/7 Support
NetBet Casino Review
The NetBet online casino offers a bonus of up to £200 with 10 free spins, and a 50x bonus wagering requirement.
While most other casinos will give you their bonuses automatically while making the account through the signup process, in this casino, you need to enter the code WELCOMENB.
100% bonus | 10 free spins | Slot Machines | 24/7 Support
Grand Ivy Casino Review
Grand Ivy is one of the biggest casinos out there, offering a deposit bonus of up to £1.500 and with an x35 wagering requirement on it, which means that you need to bet 35 times the sum of your deposit, plus the bonus amount before you have access to withdraw the funds.
£1.500 deposit bonus | High Variety of Game Developers | 24/7 Live Support
Leo Vegas Casino Review
LeoVegas offers a £100 bonus and up to 30 free spins when it comes to the welcome bonus, however, when it comes to the requirements, they may be subject to 40 times the offer value unless stated otherwise, and slots games contribute to 100% of the realization of these requirements.
£100 deposit bonus | Video Slots | 24/7 Support |
The two most common types of bonuses you can find at a casino include the following:
Match Deposit Bonus, up to 100%, on the first few deposits a player makes at a new online casino.
The Free Spins bonus. When it comes to this bonus, it is typically linked to a specific slot game on promotion during that time period, however, this is not always the case. Some free slots on casinos can be used on plenty of games, made by multiple game developers that are offered by the casino operator, and as such, have their own wagering requirement.
The wagering requirement is the amount of time you need to place wagers or bets with the money in order to be able to withdraw them.
Keep in mind that many casinos offer a lot more bonuses than the welcome bonuses, and these are typically offered through email or during gameplay sessions to the most dedicated players within the casino, which are unique to every casino provider you decide to play in.
Most Popular Slots in the UK
Slots games are one of the most popular types of games you can find at any online casino. This is due to a variety of reasons, it can be the theme, setting, graphics, sound, but most importantly, they are known for their high payout percentage when compared to other casino games.
The most popular slots in the UK include:
Starburst is one of the biggest games developed by NetEnt, which a unique arcade feeling and a focus on wild symbols which can appear on the three middle reels and give you 3 re-spins which can load to a lot of wins.
The game has an RTP of 96.01% and has 10 paylines.
Developed by Big Time Gaming, Bonanza is one of the most popular slots game ever made, with 6 reels and over 117.649 paylines. When it comes to the biggest win, it is at x10.000 your initial bet, and it has an RTP of 96.00% as well as scatter and wild symbols.
3. Rainbow Riches
Rainbow Riches is one of the most straightforward slots game on the market, developed by Barcrest, with an RTP of 95.00%, it has a jackpot of five Leprechauns that pay out 500 coins, however, the stand out feature of this game are the three bonus games that are offered to players.
4. Book of Dead
Book of Dead is a straightforward and simple slot game which shares the same structure as most video slots titles of this decade, developed by Play’N Go, it features an RTP of 96.10% and both scatter and wild symbols.
There are a total of 5 paylines which are active at any given time.
5. Gonzo’s Quest Megaways
Gonzo’s Quest Megaways is one of the most popular Megaways title ever made, which has crisper graphics, and offers much bigger wins to players when compared to the original title.
Developed by Red Tiger, an excellent software developer, it features an RTP of 95.77% and has 117.649 paylines, making it one of the most exciting games on the market.
6. Fishin Frenzy
Fishin Frenzy is an online video slot title which was developed by the software developer known as Reel Time Games, and has plenty of bonus features such as scatters, wilds, free spins and even a bonus round.
The game has an RTP of 96.12% and 10 paylines.
7. Eye of Horus
Being an Egyptian themed slots game, Eye of Horus stands out with its unique style, graphics, and music.
Developed by Reel Time Gaming, this game features an RTP of 96.31% and hs free spins on offer, as well as scatter and wild symbols which can increase your potential payout.
8. Wolf Gold
Wolf Gold is a slots title developed by Pragmatic Play, a software developer known for their solid slots title, and has an RTP of 96.01% as well as free spins, with 25 paylines and wilds and scatter symbols which can multiply your winnings tremendously.
9. Buffalo Blitz
Buffalo Blitz is a slots game which features amazing graphics and is one of Playtech’s greatest title which has big wins and is a very popular choice among online casino players. This is due to the fact that it has an RTP of 95.96% as well as 4.096 paylines.
10. Dynamite Riches
Dynamite Riches is one of the biggest games developed by Red Tiger, one of the leading software developers in the industry and as such, you can get a mega win which exceeds x5000 your initial bet.
The game has an RTP of 94.76% and features 20 paylines.
While these are the top slots casino games, which are top rated online slots in the UK, when it comes to the demo mode of these games, it is important to note that there is currently no demo variant of these games for players located within the UK.
Best UK Online Slots
When it comes to finding the Best Online Slots in the UK which feature bonus rounds and have some of the highest return to player (RTP) you can find in Online Slots UK.
1. Halloween Fortune
Halloween Fortune is one of the spookiest and most terrifying games available for fans of the horror genre. Being developed by Playtech, it has an RTP of 97.06% as well as 20 paylines, free spins, 5 reels, scatter and wild symbols and even a multiplication which can increase the winning amount.
2. Gaelic Luck
Gaelic Luck is a game developed by Playtech which has a unique luck-themed style to it and an RTP of 97.06%. The game features 20 paylines, 5 reels and 3 rows, with a wild, scatter and multiplication which allows for bonus rounds to occur in the game for massive wins.
3. Blood Suckers
Blood Suckers is a vampire slaying themed game which should make any fan of the genre feel right at home. It is true, NetEnt ticked all of the boxes when it comes to this title, with an RTP of 98.00% and a free spins round with a total of 25 paylines.
4. Tuts Twister
If you’ve ever wanted to explore the world which has the curse of King Tutankamen’s tomb in Ancient Egypt, Tuts Twister is the slots game for you.
The game is developed by Yggdrasil, and has an RTP of 97.10% with 25 paylines and lots of wild symbols which can appear during gameplay.
5. Wild Orient
The Wild Orient is a slots game perfect for people just getting into mobile slots gaming, as it offers a lot of choices when it comes to gameplay. This title from NetEnt features an RTP of 97.50% and has an astonishing 243 paylines, making it perfect for newcomers.
6. Jack Hammer 2
Jack Hammer 2 is a five-reel video slot game that has 99 paylines and offers some of the most unique graphics, which have this comic-book style to them that any fan of detective novels will find amusing.
It’s developed by NetEnt and has an RTP of 97.07% which makes ie excellent.
7. Age of Egypt
Age of Egypt, as the name itself might imply, is an ancient Egyptian themed slots title developed by Playtech. The free spins feature in this game is amazing as it bumps up the multiplier by a lot, and the game has an RTP of 97.05%.
8. Big Bad Wolf
Inspired by stories such as the Three Little Pigs, this slots title from Quickspin shows us the Big Bad Wolf, where you have cute graphics of piggies and wild symbols which can bring you an exciting experience. The game has an RTP of 97.34%.
9. Wild Swarm
When it comes to Wild Swarm, a game developed by Push Gaming, it is a 5-reel, 4 row, 20 payline game that has an RTP of 97.03% and is excellent for players looking for an interesting experience. By collecting bees that land on the reels you can fill the Hive.
10. Fruit Wrap
This is possibly one of the most unique games on this list, due to the fact that it has no paylines on reels, while still maintaining an RTP of 97.00%, this game offers amazing winning opportunities with the Free Spins Fruit Mode Bonus Round, where the game bombards you with amazing multipliers.
RTP is short for “Return to Player” and it is the term which casinos use to describe the percentage of all of the money wagered on a slots games which will be paid back to players over time.
RTP is the amount of money that is returned to players, divided by the total amount of players that engage in the slots title at play.
This is typically calculated over a minimum play of 1 million spins, and it is calculated over a higher number of games that are being played.
Jackpot Slots – Progressive Slot Machines
When it comes to learning more about the best progressive jackpot slots games, many progressive jackpots have a lower RTP when compared to the more traditional slots titles. This does not mean that you have a lower chance of winning however, that the percentage of the stakes are automatically forwarded to the jackpot. As such, the RTP does not apply to the slot’s jackpot function, but to the regular game with regular winnings.
Mega Moolah is a well designed, mobile-optimized jackpot slot that has everything you need such as wilds, scatters, free spins and a progressive jackpot. It is developed by Microgaming and has an RTP of 88.00%, which should not discourage you, as there are 25 paylines.
Age of the Gods
Age of the gods is a slots title with an RTP of 95.02%, which is high for a progressive jackpot, and it was developed by Playtech with 5 reels and 20 paylines, with multipliers that can go up to 5x, and up to 5 wilds on every free spin, which makes the game exciting.
Mega Fortune is a progressive slots game developed by NetEnt with the highest RTP of this list, coming in at 96.60%. It has an amazing theme, and it keeps players engaged and entertained throughout the entire experience. The maximum win is up to 2162 times your initial stake, which can be achieved through the free spins round.
More Types of Casino Slot Games
When it comes to online slot games, there are games which are especially popular when compared to the rest.
These games stand out through a variety of reasons, one could be the welcome offer, the other could be their similarity to land based casinos, and so on, the possibilities are endless. Other key features of these titles are the mini-games within them, such as bonus maps, free spins rounds, and scatter symbols which stack on top of one another.
While new slot themes can be exciting, nothing beats the comfort of the classic fruit slot machines, as such, fruit slots are machines which keep in with the classic theme of having fruits as their symbols. You have fruits which are the wilds, scatters, and other symbols in the game, which are some of the most traditional types of symbols in the slots game industry.
Mystery Joker is one of the most stand out slots game to ever come out from Play’N Go, and it features an RTP of 93.99% as well as a free spins round across 5 paylines. If you are looking for a fast-paced slots experience with great rewards, this is the game for you.
Mega Joker is a classic slot game in all aspects, from the gameplay mechanics, to the theme and setting, however, this is the charm the game has. Developed by NetEnt, it has an RTP of 99.00%, and as such, it can hold its ground against more complex titles and still come out on top.
Fire Joker is a fun classic themed slots game developed by Play’n Go with an RTP of 96.15%. The game has fun bonus games and re-spins with big wins if done right, while requiring minimal bets for entry to these bonuses, and due to its optimization, it can be enjoyed anywhere.
Novomatic slots are some of the best slots available and fan-favorites due to their entertaining value and fast payouts. They have been developing slots game for years and as such, these games have features such as free spins which help players of these games get to the top and potentially even win a jackpot, specifically when it comes to UK players.
Book of Ra Deluxe
Book of Ra Deluxe is one of the best games from Novomatic, featuring an RTP of 96.99%. It has 10 paylines and 5 reels, making it an extremely popular game which focuses on an explorer who’s on a mission in ancient Egypt, and it stands out with its free games feature with expanding symbols.
Lucky Lady’s Charm Deluxe
Lucky Lady’s Charm Deluxe, also developed by Novomatic, is an exciting game which plays in a slightly slower way, but retains a high RTP of 97.10%. The gameplay is simple, and with its charming design, the maximum win is x27.000 your initial stake per free spin, making it exciting all-around.
Dolphin’s Pearl Deluxe
Dolphin’s Pearl Deluxe is also developed by Novomatic. This title has an interesting theme, featuring dolphins and an ocean-aesthetic to it, the game has an RPT of 96.18% and has 10 paylines with free spins included, making it one of the most exciting games for newcomers.
The term penny is derived from the idea of playing for as little as one cent per spin, and as such, developers opted to create games with this specific theme in mind. Keep in mind that many penny slots will still require you to make a minimum bet per each term, however, it’s much lower than classic games.
Legacy of Dead
Legacy of Dead is a slots title devleiped by Play’N Go, which features an RTP of 96.58% in 5 reels an 10 paylines. You can spin on this game from a desktop, from mobile, and from tablet devices, as you take a journey to ancient Egypt to get a maximum win of x5.000 your stake per spin.
Medusa is, as the name might imply, a game themed around the idea of Medusa which was developed by NextGen Gaming and has an RTP of 95.42%. The game has exciting features, such as a 5x multiplier, and has a free spins round with 25 paylines in total, where you can trigger scatter and wild symbols.
Fortune Teller from NetEnt is possibly one of the best games available, especially for people who want to play on the go fro mtheir mobile devices. The game has an RTP of 93.30% and offers a great experience through its free spins rounds, 30 paylines and 5 rows.
Themed slots are slots which are created with a specific theme or franchise in mind. This could be based on the latest video game, TV show, or movie series which is trending around the world, and as such, it can attract a player-base which loves the setting as a whole.
If you are a fan of the show Narcos, chances are that you will feel right at home from this Narcos inspired slots game created by NetEnt. It has quite the resemblance to the Netflix show, and it even has an RTP of 96.23% with free rounds and 243 paylines.
Game of Thrones
If you are a fan of the hit tv show from HBO known as Game of Thrones, chances are that you’ll love slaying dragons as you become a warrior in this epic slots game from Microgaming. The game has an RTP of 94.86%, features free spins and 243 paylines.
If you have seen the 2000 Ridley Scott film known as Gladiator, chances are that you will feel right at home with this slots title. Take your place in the gladiator arena as you battle through Playtech’s greatest title, with an RTP of 91.50% and 25 paylines, this game features free spins, scatter, and wild symbols.
How to Play Online Slots
Every online slot game uses a random number generator.
You select the money you want to bet on each spin. The amount of money is seen at the “stake” button, next to it you will find an auto button, which will place the number of bets you want to place automatically, and you spin the reel by simply clicking, or tapping on the spin button, typically shown as a spinning symbol.
Slots Online and Their Main Features
A payline, typically told as a betting or winning line, is a combination of symbols which can result in a win when combined on a slots machine or slots game. If matching symbols land next to one another, or on a specific sequence, you will win that bet.
Free spins are basically spins which the game gives you throughout your gameplay sessions that will not take any money from your deposit. This means that you can still win money by using these free spins, while you will not end up losing any money on each of those spins wagered.
Scatter Symbols in a slots game are special symbols which have specific function, which is dependent on the slots game you are playing.They can trigger bonus features, or act as multipliers or substitutes for other symbols in order to help you get that winning combination you are serving for with each spin.
When it comes to wild symbols in these games, they are symbols which can fill in for any other symbol within a slot. It can be anything you want it to be in order to get a winning payline. Wild symbols are not a substitute for free spins, scatters, or any other bonus symbol however.
When it comes to multipliers in certain games, they can trigger a multiplier and have the capacity to multiply your winnings by a figure which is predetermined by the game. They are very common, but not every single slots game in the world has them. They can double, triple, or even increase your win by x1000.
A bonus game within a slots game is typically a game, or a level, which is triggered by a certain combination of symbols, or winning amount, that has a completely different gameplay mechanic, and can potentially multiply your winnings by an astronomical amount. The idea behind these bonus games is to make the game more exciting.
Slots Software Providers – the Best Slot Software Developers
When it comes to playing the top-rated online slots, they are made from certain software developers. Online casinos typically take the games developed by these developers and offer them to their player base. All software providers need to fulfill a certain regulation in order to operate.
The top software developers typically offer virtual reality games, or even 3D games which offer a truly immersive experience.
Playtech is ranked as one of the top software developers on the market, and the company offers slots which have some of the best design, sounds, themes, and overall free spins functionality, and the team has been making games for decades, as it was founded in 1999 and has more than 5.000 employees across 17 countries.
Novomatic are known to produce the games which become fan-favorites, with their lineup being featured prominently on many of the newest casinos on the market due to their large payouts. Their games offer free spins, and excellent jackpots. Novomatic was founded in 1980 by Professor Johann F. Graf.
WMS gaming, which is also known as Williams interactive, is a game developer which has been on the market for a very long time, starting all the way back in 1943. It has pioneered the way for casino games as a whole, and has created a wide-range of land based casino games as well.
This software provider was founded in 2004 and it is based in Canada while being licensed by very reputable authorities.
It offers a selection of more than 300 games and it has become a respected name in the world of online casinos by both players and operators who’ve had the pleasure of playing their games.
NetEnt were, are, and will always be some of the most popular game developers in the casino industry due to the fact that they consistently offer fresh and unique games in their lineup, and have satisfied players across the globe. They were founded in 1996 and have roots in a traditional casino.
Merkur Gaming is a software development company that specializes in casinos ever since it was founded in 1957. They have developed some of the most prominently played games you will find in online casinos and consistently try to push the envelope of what is possible through amazing gameplay and graphics.
IGT was founded in 1975 and is one of the biggest names in the world of casinos. The full name is International Game Technology, and they have been offering their services ever since the first brick and mortar casino days. As such, they are considered by many as one of the best.
NextGen Gaming is a well-known and reputable name in the casino industry and has developed a wide range of games such as video slots which are regularly available and playable on both desktop and mobile devices. They were founded in 1999 and have been consistently pushing the envelope of casino games.
8. Inspired Gaming
Inspired Gaming, while they might not be the biggest developer out there, they provide a fine selection of games that can be enjoyed and played on a variety of devices. All of their games are produced well and have exciting features which make them stand out.
Microgaming is a private gambling software company which is based in the Isle of Man, founded all the way back in 1994, and to this very day, offers some of the best casino software you can find when playing online, with games that have exciting gameplay mechanics and beautiful graphics.
Playing Online Slots on the Go – Mobile Slots
When it comes to playing online slots on the go, many online casinos, which offer you the ability to win real money, especially if you are one of the UK players, have their casinos available on mobile.
It is extremely important for a casino provider to offer its players the ability to play on mobile, and some even take one step further and give mobile players special applications and bonuses.
Many online casinos and games as a whole are also optimized to run without the need of a separate application, and as such, you just need a device that has a modern web browser and you are good to go. This means that you do not have to go out of your way to download an application and waste your phone’s storage, as many slots game are optimized extremely well to run directly from your browser.