Best Online Slot Games UK

Top 3 Online Slots UK

Casino Sites Online have completed a review of the best online slot games UK.

The team at Casino Sites Online have worked at some of the biggest and most successful online casinos in the UK, and have been playing online casino games for more than a decade. So you can be confident that we know a thing or two about what makes the best casino games, the best!

Our review has found the three most played online slots games by players in the UK, with ancient Egypt themed slot ‘Book of Dead’ receiving the nod as the most popular. 

In our review, you will learn why the three online slots below consistently come out on top for UK players, why we recommend our hand-picked casinos to play them, and the criteria that went into how we made our decision.

Keep reading to find out more…

Top 3 Online Slot Games For Players In The UK

1.  Book of Dead [Most Played Online Slot UK]

book of dead - casino sites online

Launched only as recently as 2016, this Book of Ra Deluxe by Novomatic [1] lookalike (and dare we say, had been “inspired by”…) has firmly established itself as the number one slot game played by people online in the UK, and also worldwide. [2]

The fast-paced, beautifully animated slot game action combines familiar game mechanics with a modern look and feel. It is all of the best elements of online slots play rolled into one awesome game.


How To Play

Set your bet per line and number of active lines, then press the spin button. Look (and listen) for the Book scatter symbols to land as the trigger the special feature and are wilds.


Special Features

Book of Dead has two special features; free spins bonus rounds (that can re-trigger) and a gamble option. Gamble option gives you the opportunity to play for 2x or 4x your game round win. 

Free spins are triggered by landing three scatter symbols and can result in massive wins.


At A Glance

  • Game Provider: Play’n GO [3]
  • Game Lines: 10
  • Game Reels: 5
  • Volatility: High
  • Slot Theme: Ancient Egypt
  • Max Win: 5000x


2.  Starburst [Most Iconic Online Slot]

starburst - casino sites online

Launched in 2012, Starburst slot game has been experienced by millions of players after being integrated into the welcome bonus of hundreds of online casinos. With many sites including free spins on Starburst in their welcome bonus bundle, the familiarity with the game mechanics became high amongst UK players, and they’ve continued to play the game 


How To Play

Starburst is loved due to its simplicity and speed of play. There are no long pauses in play whilst waiting for bonus features to load or complete, just rapid spin action.


Special Features

The Starburst special feature is expanding wilds and re-spin. The wilds can remain sticky and appear for up to 3 re-spins, covering the middle three reels and creating potential huge payouts. 


At A Glance

  • Game Provider: NetEnt
  • Game Lines: 10
  • Game Reels: 5
  • Volatility: Low
  • Slot Theme: Space
  • Max Win: 600x


3.  Rainbow Riches [Most Played Offline Slot]

rainbow riches - casino sites online

Anyone that has visited an arcade, games section of a motorway service station, bingo hall or physical casino is likely familiar with the colours, icons and sounds of Rainbow Riches slot machine games. The online version has all of this, allowing players to easily transition to playing at casino sites on the internet.


How To Play

Select the number of lines and the bet amount per line, then hit spin. Look for the gold coin wild symbol to land on the reels as this is the highest paying symbol. Rainbow Riches is a very easy game to understand and play.


Special Features

Land 3 or more of the relevant symbols to trigger one of the three special features; Road to Riches, Wishing Well, Pots of Gold. Three special features create lots of gameplay variety and depth to the slot gaming experience.


At A Glance

  • Game Provider: Barcrest
  • Game Lines: 20
  • Game Reels: 5
  • Volatility: Medium
  • Slot Theme: Irish Slots
  • Max Win: 500x


Best Online Slots Sites UK 

To play the best online slot games [4], we must first create an account at an online slots casino website.

Here are the best online slots sites for playing the top UK games:

  1. Grand Ivy – Best for biggest deposit match bonus to play all three games
  2. 21Prive Casino – Best for Free Spins on Starburst
  3. Jackpot Village Casino – Best for Free Spins on Book of Dead

And here’s how we picked this list of top slots sites…


Game Availability

The slots site must have all of the top games available for UK real-money gameplay. Because you’ll want to try all three games, right?


Game Suppliers

They must offer other games by suppliers NetEnt, Play’n GO and Barcrest. When you’re ready for more, you can be sure your new casino has further games for you to try.



The games must be easy to find. Why waste precious gaming time struggling to search or scroll to the top games? 



Best UK casinos offer a range of payment methods for deposits and fast withdrawals. Getting your cash in easily and payouts back to your payment method quickly is essential.



Does the casino offer a welcome bonus that allows you to play the top UK slot games with the bonus? If you’re playing these games for the first time, a welcome bonus allows you to experience real-money gameplay without risking your own cash.


Customer Service

Responsive, helpful and friendly customer support is a must if it is to receive our recommendation. Although you’re not likely to need them, it’s comforting to know the service is there should you need it.


Mobile Website

The slot sites must be available to play from mobile browsers. Take your gaming with you and enjoy a spin or two on the bus or train, for example.


UK Gambling Commission License 

Play safely at online casinos by only joining UK Gambling Commission licensed and regulated website. These sites are subject to high levels of scrutiny and monitoring by the regulator and must provide measures and protocols for the protection of their players. 


Responsible Gaming

Our recommendations must include a full suite of responsible gambling tools for players to use. These allow UK players to set limits and caps on their time and money spent at the casino.



Before we post our recommended casino sites we always sample check the latest Trustpilot reviews. Reading recent reviews gives us confidence that the sites are maintaining their high standards.


Recommended Slots Casino Sites

Casino Site: The Grand Ivy Casino

Licence Number: 52894

Rating: 4.5/5

Our Review: Grand Ivy Casino Review


Casino Site: 21Prive Casino

Licence Number: 52894

Rating: 4.6/5

Our Review: 21Prive Casino Review


Casino Site: Jackpot Village Casino

Licence Number: 52894

Rating: 4.4/5

Our Review: Jackpot Village Casino Review



Our Verdict

Casino Sites Online found Book of Dead by game creator Play’n GO to be the best online slot game for UK players.

And our review also discovered that the best slots site to play Book of Dead, Starburst & Rainbow Riches is The Grand Ivy Casino.

Check it out…

Visit Grand Ivy Casino website now >>


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