Slot Games

Take a deep dive into the world of top slot games in the UK. Here we will cover the very best slots available at UK casinos, and include in-depth information on highest payouts.

Play the Best Slot Games in the UK on These Sites

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Rank Brand Features Bonus Review


swift casino logo
  • Banking Flexibility
  • Extensive game portfolio
  • Responsive customer care

100% Up To £50 + 50 Free Spins

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Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Max. Bonus £50. Maximum amount of Free Spins is 50. Game: Book of Dead, Spin Value: £0.10. 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). Spins must be used and/or Bonus must be claimed before using deposited funds. Bonuses do not prevent withdrawing deposit balance. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies. #AD, 18+ only,, Full Terms apply


winbritish casino logo
  • Loads of Slots Games
  • Generous promotions
  • Secure gaming environment

500 Free Spins
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New players only, £10 min fund, max bonus conversion to real funds equal to lifetime deposits (up to £250), 65x wagering requirements and full T&Cs apply


Bluefox Casino Logo
  • Exciting sign-up bonus
  • Multiple payment methods
  • Wide range of casino games

50% match up to £1000

+ 100 Free Spins
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Terms and Conditions apply. New Players Only 18+. Minimum Deposit: £10. Maximum Bonus: £10 and 10 Spins (on Starburst). Wagering requirement applies 35x. Promo code: ATLANTIC. Withdrawal & Full T&Cs apply. Valid until further notice


atlantic spins casino logo
  • Guarantees banking flexibility
  • Easy-to-reach support
  • User-friendly
  • Get 100 extra spins

100% match up to £100

+ 100 Free Spins
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New Players Only 18+ (UK only). Minimum Deposit: £10. Maximum Welcome Offer: 100% welcome Bonus up to £100 & 100 Spins on Starburst. Spins bonus winnings must be wagered 35x before withdrawal. Spins expire after 5 days. Promo Code: PLAY100. Withdrawal terms apply. Valid until 31/12/2023 


brightstar casino logo
  • Generous bonuses
  • User-friendly interface
  • 24/7 customer support

100% match up to £200

+ 20 Free Spins
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New Players Only. Wagering occurs from real balance first. 50X wagering the bonus. Contribution may vary per game. Available on selected games only. The wagering requirement is calculated on bonus bets only. Bonus valid 30 Days from receipt/Free spins valid 7 days from receipt. Max conversion: 3 X the bonus amount. Limited to 5 brands within the network. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits. Full Terms apply.

Best Online Slot Games to Win – Ranked by RTP

In a nutshell, RTP is an indicator of how much chance you have of winning overall on a slot game. The higher the RTP, the better your odds. Knowing the RTP allows you to make informed decisions about which slots to play for real money and maximise your value.

Here are our top 10 Slots with high RTPs:

Slot GameProviderRTPHouse Edge
Book of DeadPlay’n GO96.21%3,79%
Gonzo’s QuestNetEnt96.00%4.00%
Blood SuckersNetEnt98.00%2.00%
Thunderstruck II Microgaming96.65%3.35%
Immortal RomanceMicrogaming96.86%3.14%
Mega JokerNetEnt99.00%1.00%
Jack and the Beanstalk NetEnt96.28%3.72%
Big Bass BonanzaPragmatic Play96.71%3.29%

Type of Slot Games

Online slot games are increasingly varied, as game providers like Games Global, Light and Wonder and NetEnt come up with new, groundbreaking features and mechanics. The classic varieties, like 3-reel, 5-reel and jackpot slots are now joined by player favourites like Tumbling Reels, Bonus Buy and Cascading Reels slots. 

Here’s a quick overview of the most popular types of slot games available.

Three Reel Slots

Three reel slots are the digital versions of the traditional slot machines most players are familiar with in a land-based casino setting. Three Reel Slots are simple, with fewer paylines and basic, no-thrills gameplay. While these slots are ideal for beginners, many slot veterans still prefer the three-reel poker game, as it often offers great payouts and has a retro feel.

Popular Three Reel Slots:

  1. Double Diamond
  2. Triple Red Hot 7s
  3. Break da Bank
  4. Bar Bar Black Sheep
  5. Jackpot Jester 50,000

Five Reel Slots

Five reel slots offer players a more dynamic gameplay, with more opportunities to win and compared to three reel slots five-reel slots are usually much more exciting and animated. Extra paylines also means more opportunities for winning combinations. 

Popular Five Reel Slots:

  1. Cleopatra
  2. Bonanza
  3. Dead or Alive II
  4. Wolf Gold
  5. Rainbow Riches

Progressive Slots

Progressive jackpot slots have become famous online for offering life-changing, multi-million pound wins – such as the recent WowPot jackpot winner who walked away with over 30M Euros! 

While the chances of winning on a progressive slot are much smaller, the payout is significantly larger. Mega Moolah, WowPot and Mega Fortunes jackpot progressive pools regularly go over £10M before being hit.

Popular Progressive Slots:

  1. Mega Moolah
  2. Hall of Gods
  3. Mega Fortune
  4. Arabian Nights
  5. Age of the Gods

243 Ways Slots

Since the release of the blockbuster slot Thunderstruck II from Games Global (formerly Microgaming), 243 ways slots have become a mainstay of any good slots collection at a casino online. With no traditional paylines, players win by matching symbols on adjacent reels from left to right instead. This slot mechanic increases the chances of landing winning combinations and proves to be extremely entertaining.

Popular 243 Ways Slots:

  1. Thunderstruck II
  2. Immortal Romance
  3. Jurassic Park
  4. Terminator 2
  5. Big Bad Wolf

Megaways Slots

Megaways slots have revolutionised online casino gaming. With dynamic reels, where the number of symbols per reel changes with each spin, players are dazzled with a potential of 117,649 winning combinations.

Popular Megaways Slots:

  1. Bonanza Megaways
  2. Extra Chilli Megaways
  3. Divine Fortune Megaways
  4. White Rabbit Megaways
  5. Monopoly Megaways

Tumbling Reels Slots

Tumbling reels are a relatively new, very entertaining slot format, also known as cascading reels, where winning symbols vanish and new symbols fall into place on the screen, potentially creating additional wins in a single spin. The chance of multiple consecutive wins adds a huge dose of excitement to the game.

Popular Tumbling Reels Slots:

  1. Gonzo’s Quest
  2. Bonanza
  3. Reactoonz
  4. Jungle Jim El Dorado
  5. Sweet Bonanza

Bonus Buy Slots

Bonus buy slots have become a big thing among slot players looking to leverage their value. Players are given the option to purchase direct access to the bonus rounds, instead of waiting for them to trigger as usual during gameplay. This feature appeals to players who prefer immediate action and increased winning chances. 

Popular Bonus Buy Slots:

  1. Money Train 2
  2. Sweet Bonanza
  3. Deadwood
  4. The Dog House Megaways
  5. Legacy of Dead

How Does Slot Games Work?

Slot games come in so many formats and varieties today, that there isn’t a one-size-fits-all description of how they work; however, there are some key features which are still retained across slot games, such as winning combinations, volatility scores, paylines and RTP, that are universal. Understanding the slot key concepts is crucial if you are going to play slot machine games for real money online.

Slot RTP

An RTP, or Return to Player, indicates a player’s theoretical return on investment. The RTP is a percentage that gives an idea of how much wagered money that a slot game will pay back to players over time. 

Of course, the RTP is theoretical, so you’d have to play for long sessions to see the percentage yield. However, a higher RTP means better chances of winning.


Slot players are becoming increasingly aware of volatility. Slot volatility measures how often and how much you can win on a slot game. Low volatility means you get frequent, smaller wins; while high volatility on a slot means larger, less frequent wins.

Slot Reels

Reels are central to a slot design. Reels are the vertical sections that spin when you play a slot game. While reels now come in all shapes and sizes, the concept is much the same across slots. Most slots have 3 or 5 reels, each displaying various symbols.


Paylines are the lines on which a payout will be awarded on a slot, which are based on winning combinations of symbols. Slots can have anywhere from a single payline to hundreds, and with lots of new innovations like the Megaways mechanic, players enjoy a wide variety of payline formats.

Slot Games Symbols

Symbols often define the look and feel of a slot game, but the slot symbol in a game isn’t just for show, they determine your wins and trigger bonus features. Here are the main types:

  • Wild Symbols
  • Scatter Symbols
  • Multiplier Symbols

How to Maximise Your Wins on Slot Games

Maximising your wins on slot games involves choosing the right games, such as slots with High RTPs and low or high volatility, depending on your expectations. It’s crucial to understand the payout and mechanics of a slot before playing, in order to fully utilize its features when playing for real money. Here are some top tips.

  • Find a Slot Game with High RTP: Choosing slots with a high RTP increases your chances of winning in the long run.
  • Find a Slot Game with No Deposit Bonus or Free Spins attached: Free Spins or No deposit slots allow you to play without risking your own money, providing a great way to win without an initial investment.
  • Pick a Slot Game with Low Volatility: Low volatility slots offer more frequent wins, helping you build your bankroll gradually. While there are players who prefer high volatility, we recommend only opting for high volatility slots when you have built a healthy slot casino bankroll.
  • Change your Bet Limit: A popular strategy for many players is to increase the bet limit after big wins. This might be deemed risky, but can yield big rewards in some sessions if you’re feeling lucky.

Available Bonuses on Slot Games

Slot sites often offer players bonuses and rewards specifically tied to Slot games. Whether to showcase a new or popular game to existing players, or as Welcome offers to attract new slot players, the Free Spin promotion or No Deposit Bonus offer, is common and frequently promoted at top online casino sites. 

Here are three of the most popular online slots bonuses to look out for online: 

  • Free Spins: The popularity of Free Spins promotions has increased, as slots become more sophisticated and seen as a top form of online entertainment. Free Spin offers on blockbuster slot games like Big Bass Bonanza, Immortal Romance and Book of Dead are a great way to start your slot journey online.
  • No Deposit Bonuses: These offers allow players to get started before making a real money deposit. After signing up to a casino and verifying your details, you will get bonus credits, often in the region of $10-$20.
  • Welcome Bonuses: There are lots of different types of Welcome Bonus, including the Match Bonus which will often double your first deposit with bonus funds. But keep an eye out for the popular hybrid welcome bonuses, which offer players a combination of Deposit Match Bonus funds with Free Spins on top slot games on top.


Can I play slot games on mobiles?

Yes, the best slot software providers optimise slot games for mobile devices. Many slots are designed with a mobile-first approach, so that when played on iOS or Android devices you get the most out of slot games.

Can I play slot games for free?

Yes, the majority of casino sites online offer Free-to-play versions of their slots. You can also look for Free Spin offers, which give players a chance to spin slots for free without risking real money.

What is the maximum bet on slot games?

Maximum bets on slots are determined by the casino operator. Some UK casinos have a strict maximum bet policy, whereby you will not be able to bet more than £10 on a single spin. Depending upon the casino site, the max bet can vary widely.

What is the minimum bet on slot games?

The minimum bet on slot games is usually around 10-20p, although with certain games, especially jackpot games, it may be as high as £1.