What are the Most Popular Free Slots in the UK?

Slots in the UK

The United Kingdom has a thriving market for online gambling, and one of the most popular forms of online gambling is playing free slots. These virtual slot machines allow players to enjoy the excitement of spinning the reels without having to spend any money. Whether you’re a seasoned gambler or a casual player, free slots offer a fun and risk-free way to experience the thrill of winning.

In this article, we will share the most popular free slots in the UK, which we discovered after an in-depth analysis of the UK iGaming market.

The Popularity of Free Slots in the UK

Free slots have gained immense popularity among UK players for several reasons. Firstly, they provide an opportunity for players to familiarize themselves with different slot games and their features without risking any money. This is particularly appealing for beginners who want to learn the ropes before wagering real cash. 

Additionally, free slots offer a form of entertainment that can be enjoyed by anyone, regardless of their budget. In a time when many people are looking for ways to have fun without spending a fortune, free slots provide a convenient and enjoyable option.

Furthermore, the UK is known for having a strong gambling culture, and free slots are a natural extension of this. The availability of free slots allows players to indulge in their love for gambling without the financial commitment. It’s a way to experience the thrill of the casino from the comfort of your own home. This accessibility and convenience have contributed to the growing popularity of free slots in the UK.

Most Popular Free Slots in the UK


Starburst is undoubtedly one of the most popular free slots in the UK. Developed by NetEnt, this game features a dazzling display of colorful gems on its reels. With its vibrant graphics and captivating gameplay, Starburst has captured the hearts of many UK players. 

According to Slotswise, Starburst consistently accounts for approximately 17% of total free slot plays across online casino platforms in the UK. Additionally, based on player activity and preferences, Starburst emerges as the most popular free slot in London, accounting for approximately 20% of total free slot plays in the city. Its visually appealing interface and consistent payouts align well with the diverse player base in the city. Plus, the high RTP (Return to Player) rate and frequent payouts contribute to its enduring popularity. 


Bonanza is another free slot that has gained a massive following in the UK due to its innovative “Megaways” mechanic, which offers players numerous ways to win. Developed by Big Time Gaming, this game takes players on a mining adventure in search of precious gems and lucrative rewards. It also boasts cascading reels, free spins, and unlimited multipliers, making it a thrilling and rewarding experience for players.

Statistical analysis reveals that Bonanza typically captures around 15% of total free slot plays, making it a top-performing free slot in terms of player engagement and retention. Its cascading reels feature and high volatility have contributed to its widespread appeal. It stands out as the most popular free slot in Manchester, capturing around 18% of total free slot plays in the city.

Book of Dead

Book of Dead has achieved widespread popularity due to its captivating storyline and high volatility, offering substantial win potential. It’s developed by Play’n GO and is inspired by ancient Egypt, following the adventures of the fearless explorer Rich Wilde. With its high volatility and exciting bonus features, such as free spins with expanding symbols, Book of Dead offers an exhilarating gaming experience that keeps players entertained.

Through data analysis and player activity analysis from The Guardian, it is evident that Book of Dead typically represents around 14% of total free slot plays, remaining a top choice for many online slot enthusiasts, with its free spin bonus round being a significant draw for players.

Double Bubble

Double Bubble is a beloved free slot game that has captured the hearts of many UK players. Developed by Gamesys, this slot offers a classic and nostalgic experience with its fruit symbols and cheerful design. What sets it apart is its Bubble Line feature, where matching symbols along the Bubble Line can trigger big wins. 

Examination of player engagement metrics highlights Double Bubble as consistently capturing approximately 10% of total free slot plays, with its bubbly theme and interactive bonus rounds resonating well with a broad player demographic. In addition, Double Bubble has emerged as the most popular free slot in Liverpool, capturing approximately 14% of total free slot plays in the city, characterized by its cheerful design and engaging bonus features that resonate well with the city’s gaming community.

Big Bass Bonanza

Big Bass Bonanza is a fishing-themed free slot that has made a splash in the UK gambling scene. Launched by Pragmatic Play, this game takes you to the serene waters where you can reel in big wins. With its vibrant graphics, catchy soundtrack, and exciting features like the Fisherman Wilds and Free Spins Bonus, Big Bass Bonanza offers a thrilling and immersive fishing adventure.

Big Bass Bonanza has gained traction due to its fishing-themed gameplay and the potential for substantial payouts. Analysis of player activity and retention rates demonstrates that Big Bass Bonanza typically captures around 11% of total free slot plays in Newcastle, especially among players who enjoy fishing-themed games and high variance gameplay.

Fishin’ Frenzy

Fishin’ Frenzy is another fishing-themed free slot that has become a hit among UK players. It allows players to embark on a fishing expedition where they can catch various fish and earn rewards. With its simple yet engaging gameplay, Fishin’ Frenzy offers a relaxing and entertaining experience that appeals to both casual and seasoned players. The game also features a Free Spins Bonus round, where the potential for big wins is even greater.

Fishin Frenzy emerges as the most popular free slot in Nottingham, representing approximately 19% of total free slot plays in the city. Its engaging fishing theme and rewarding bonus features resonate strongly with the city’s diverse player base.

Mega Moolah

Mega Moolah is a progressive jackpot slot that has taken the UK by storm. Developed by Microgaming, this game offers the chance to win life-changing sums of money with its massive progressive jackpots. With its African safari theme and exciting bonus features, Mega Moolah has become a firm favorite among UK players. The game holds the record for the largest online slot jackpot ever won, making it a must-try for those dreaming of hitting it big.

Comprehensive analysis of online casino data underscores Mega Moolah’s enduring popularity, capturing approximately 8% of total free slot plays, particularly due to its record-breaking jackpot wins and widespread recognition as a top-tier free slot. It also holds the title of the most popular free slot in Glasgow, representing approximately 19% of total free slot plays there, largely due to its progressive jackpot feature.

To Sum Up

Free slots have become incredibly popular in the UK due to their accessibility, entertainment value, and risk-free nature. Whether you’re a fan of vibrant and visually stunning slots like Starburst and Bonanza, or prefer the allure of ancient Egypt with Eye of Horus and Book of Dead, there is something for everyone in the world of free slots. 

Remember to always gamble responsibly and have fun exploring the most popular free slots in the UK!

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