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Best online slots UK

By Kati Saari. Updated:

Bojoko helps you discover the best slots. Best slots online offer heaps of fun and a high-quality playing experience. But the big question is, what actually is the best slot? What really matters in a game and what should you look for.

We are here to help. We'll show you what to look for in a slot and what aspects are important to players. With our help, you are sure to find the best slot for you. Here we'll focus on what really matters; what and where are the best slots out there? 

Play the best online slots

On Bojoko, both users and slot experts review and rate the slots. Our reviews offer valuable insight from real people who actually have played the games. So, instead of the general information available anywhere, you get honest opinions and top online slots served on a silver platter. 

Below, you'll find the best casino slot games chosen by our users.

Play the best slots on these sites

On the list below, you can check out the sites that offer the largest selection of games. These include the slots our users rated the highest.

Read more about best online slots

On this page, we have all the information you need to find what matters in a slot and what makes certain games better than others. With this, you can easily find the best slot for you.

Best Online Slots

Bojoko helps you find the best slots

On Bojoko, you can find everything you need to know about the best slots.

When we are talking about the best slots, the bar is obviously set pretty high. We share your enthusiasm for slots and want to find the best slot machines to play online.

We also want to share our experiences with other lovers of slots. On Bojoko, you may either casually browse our selection of slots, or use our tool for filtering out slots with specific features.

The lists above introduce the best slots the online casinos have on offer, and also the casinos where you can play the slots. The top UK online slots have been picked and organized by our users and experts, but you can filter and sort the results yourself, too.

Best slots Casinos with most slots

Our slot data taken straight from the developers and our experts give those games an unbiased rating. By reading the slot reviews and casino reviews, you can get a clear picture of what's waiting ahead. As a registered member, you can join in and review games as well.

Not a member yet? Join Bojoko for free!

What makes the slot "best"

As there are thousands and thousands of slots with a vast variety of design, gameplay, volatility etc. we can't name just one game as "the best" slot. However, we can look into what particular features work as the key elements shared by many of the best slots.

On our slot reviews page, we explain the criteria for the top slots in more detail.

Of course, our personal preferences play a big part in determining which slots we think are the best. Also regional tastes vary. A UK punter has a tad different taste than, say, your general American player. Later in the article, We've listed some suggestions of best slots for different types of players - for finding the best slot for you.

Best online slot suppliers

NetEnt, Microgaming, Betsoft, Play ‘n GO, Yggdrasil… What makes one game supplier superior to another? Which one of them makes the best slots to play online?

If it's the age, then Microgaming and NetEnt are at the top of the list. 

Microgaming had a long head-start with online gaming, as their first game and casino software were published as early as 1994. NetEnt followed in 2004, which is still quite early, and Play ‘n GO in 2006.

Naturally, with age comes experience and knowing your customers better. It's a great help while creating new slots if you actually know your audience and the trending features.

Those who have played slots for some time can easily distinguish one supplier's games from others. The suppliers do have their own distinct style of which they're known for. That causes some of the players favouring certain suppliers more.


Microgaming has the advantage of the long age, hence the experience and a thorough understanding of players' preferences. Microgaming slots include the most well-known progressive jackpot slot Mega Moolah, as well as many popular slots like Immortal Romance.


NetEnt is a producer of high-quality games which can be found at almost all online casinos. They've also released several popular progressive slots, like Mega Fortune and Hall of Gods to name a few. NetEnt slots are very mobile-friendly games.

Play ‘n GO

Play'n GO is known as a bold supplier at trying new slot styles and features. Play ‘n GO slots include a lot of high-volatile games and some progressive jackpots, like Fruit Bonanza and Gunslinger.


Yggdrasil holds a selection of beautiful and innovative slots and they have proven to be one of the suppliers that really think outside of the box. Yggdrasil slots also include games from smaller developers that Yggdrasil only publishes.

Pragmatic Play

Pragmatic Play Is known for both traditional and non-traditional slots, many of them of high volatility. They also do lots of in-game campaigns that you can find at any casino offering their games. Pragmatic Play slots are great for mobile players.

How to find the best slot casinos

Find a best slot casino from our list

1. Find a best slot casino from our list

Here on Bojoko, we have a huge list of casinos with the best slots. You can use our ready-made filters to narrow down your search and add personal ones to find the perfect casino for you.

Read the casino reviews

2. Read the casino reviews

When you have chosen a best slot casino, you can read what other users and our experts have said about it. Their first-hand accounts will give you a clear idea of what it's like to play there.

Go to the casino

3. Go to the casino

Every review page has a big green ‘PLAY HERE' button that takes you straight to the casino. That button will also activate any special bonus offers that we might have for that particular casino.

Register and play

4. Register and play

When you get to the casino, you need to register an account. Just follow the instructions, fill the required information and verify your email if needed. Then you can just deposit and start playing the best slots.

Find casinos with the best slots

TOP 10 online slots by RTP

RTP stands for the percentage indicating how high or low the house edge is. The higher the percentage, the better the chances are for you to win back your bets. 

However, if you're looking for a high RTP game to wager bonus money in, check the bonus terms of the casino. 

Very often the games with high RTP have been excluded from the list of permitted slots. In worst cases, playing them might result in the casino revoking the bonus altogether. Alas, the top online slots that UK players love usually are on this list. 

Best online jackpot slots

Having a progressive jackpot can be a feature that piques the players' interest and attention. But, like any single aspect, it can't be the sole reason to call any slot best.

If we focus only on the jackpot slots and particularly on how large sums have been won from them, then it's very simple to list some of the best ones:

Mega Moolah by Microgaming and Mega Fortune by NetEnt are the royal duo of the progressive slots. 

Currently, Mega Moolah's sister game, Absolootly Mad: Mega Moolah, holds the record for the largest jackpot won from an online slot. The record-breaking payout was €19,430,723. According to the statistics, Mega Moolah also pays out more frequently than the others.

Where to play the best online slot games in the UK

Even though most of the best slots are available at the majority of sites it might matter where to play them more than you think. The terms and conditions can vary greatly between the casinos, as can the bonus terms.

Here's what to consider before choosing a casino to play slots at:

Many sites offer casino bonuses for new customers, as well as other perks for loyal players. If you plan to take advantage of these offers, read the bonus terms and conditions. They can affect how you're allowed to play certain slots.

The number of slots at a casino can be anything between 200 and 5,000. So yes, it does matter to check out what kind of assortment the site has. Also, it's good to check the newest games and how often approximately does the casino add new slots.

Some of the sites do value quality and only choose the cream of the crop. Alas, some sites only seem to hoard any games they can get their hands on. It's an easy way to obtain a huge and attractive selection, but with a closer look, it might not look as great as it first appears.

What is the best slot for you?

We are all unique players, so naming the best online casino slots for everyone is not an easy task. We have our own personal preferences and what we're looking for when we want to find the best slots for us.

Here are my suggestions for the different types of players:

Best slots for a beginner

You want to learn the basics of online slots and have fun without feeling intimidated.

Best slots for a casual player

You want to enjoy the show with slots that have a variety of features, beautiful animations and are able to offer a good experience for your cash.

Best slots for a hardcore player

Efficiency, good RTP and big payouts - you want no-nonsense slots with the best odds and high stakes!

Best slots and responsible gaming

Slots are popular games on casinos for a reason. The casino has a decent edge and they are fast to play.

Gambling is always risky. Even the best slot in the world still favours the casino. The more you play, the higher the chance is that you will lose.

Slots in particular are designed to keep the player playing. The games have desirable features that might take a long time to activate or require you to collect certain symbols. These features are there simply to make sure you push that spin button again and again.

It is important to identify these hooks, so you can become a more responsible player. Knowing what in a game is good for the casino and what is good for the player will help you stay in control. The goal is to have fun, not to fix any financial issues.


So, where are the best slots? What are the best slots? We can't tell you that because there are as many best slots as there are players. However, with these pointers, you'll easily figure out the right answer for you.

Be bold and give new slots a go. If you're unsure or don't want to lose your bets to a game that ends up being a disappointment, try them with play money instead.

When you find a game you feel good about, check the supplier's other slots. One good find may lead you to a bunch of fun experiences.

RTP, volatility and variance are the three main things affecting how often, how likely and how much the game pays out. Knowing about them can help you define the best online slot machines for you.

RTP tells you how much the slot pays back to the players in the long run. 

The level of volatility indicates the level of risk. If the slot is marked as highly volatile, you can expect the payouts to be scarce but higher.

Lastly, the level of variance tells you the likelihood of hitting any winning combination on a given spin. It's often mixed up with volatility as it also refers to the risk involved. 


It entirely depends on what kind of slots you consider the best. On Bojoko, you'll find a long catalogue of online casinos and authentic reviews from our experts and users. We also introduce and review slot games, so you get to read real experiences instead of just basic info.

The best slots are the ones you enjoy playing the most. However, if you still don't have a favourite, you can check out our selection of slots and see what kind of features they hold. Generally speaking, among the most popular slots are currently Starburst, Gonzo's Quest and Mega Moolah.

The odds for winning from slots are based entirely on the RTP, volatility and variance. Of course, the maximum payouts can vary greatly between slots. On that note, regular slots can't possibly compare to the main prize of the progressive jackpots.

Playtech's Ugga Bugga has an RTP of 99.07%. This would mean that in the long run, you'd win roughly £99 for every £100 put in the slot. 

However, Ugga Bugga is an old game and most casinos don't have it anymore. On Bojoko, you'll find several high RTP slots you can try today.

It is all about personal taste, but generally NetEnt casinos and Microgaming casinos draw the largest crowds, as they are the biggest and most-liked online game suppliers. Yet, again this depends on what you're looking for when you play slots. If you like to see more creativity, try Yggdrasil slots. If, on the other hand, you like high volatile slots, try the Play ‘n GO slots.

This depends on when the slot was released and whether it has been since updated to a mobile-friendly version. It's fairly safe to say that about all of the latest slots do work on mobile and most of the old & popular slots have been updated.


Find casinos with the best slots


Kati Saari

Article by:

Kati Saari

Kati Saari has worked with the gambling industry since 2013. She has tested hundreds of casinos and written thousands of articles, evolving into an iron-clad expert in her own field. Having a true passion for her work she’s adamant not to let anything past her without thorough research.

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