Starburst™ XXXtreme ➡
Top Slot Games for UK Players
Online slots have seen huge growth in the past decade. The number of games has increased dramatically, as well as the quality and the features incorporated in what used to be 'dull' three-reel one-arm bandits.
It can be difficult to find the best slot sites and understand what slot machine games are worth playing - especially if you are new to the genre and you are not familiar with game developer names and concepts like RTP and volatility.
The oddschecker Casino team has created what we believe is the best guide to online slot machines for players in the United Kingdom.
Here you find everything you need to understand how to pick the best slots to play online as well as the most lucrative bonuses and free spins available on the best slots sites.
We show you how the different slot games work and what aspects make them a good or a poor choice for your real money games. This way, you can make informed decisions and always pick the top UK slots to play.
This article focuses on the top UK online slots sites in 2021.As you are about to find out, here on oddschecker, we take great pride in testing all the gaming operators approved by the UK Gambling Commission so our readers can access the best games on the top brands out there.
Continue reading the oddschecker guide to casino slots online to learn:
- How do online slots work
- How do we pick the best slot games to play online
- What is the Return to Player and why you should care about it
- What casino slots you need to try when you play online
- How to get the most out of free spins and demo games
- What sites offer the Starburst™ XXXtreme slot machine
- And a lot more
We tried also to answer all the most popular questions about wagering requirements, casino bonus offers, and many more aspects that are relevant to every player looking for info about real money slot machine games.
In other words, if you are looking for a way to discover the world of online slots and find out what are the best slot sites to get some bonus money for your games - you'll love this guide!
How to Play Online Slots in the UK
Judging by the sheer amount of slot sites out there and the impressive number of games they feature - it would seem like all casino players spend time playing online slots.
Technology sure helped the diffusion of these gambling games. Online play allows players to log in and begin playing whenever they want. Although this might 'de-humanise' gambling and remove the fun that comes with the traditional brick-and-mortar casino experience, some players believe online play offers a better experience overall.
Mobile slot games have allowed players to access the games from their smartphones and tablets, removing also the need to be at a desktop computer to fire up a slot and play.
While we will discuss mobile gaming later in this guide, it is clear that the growth of the mobile arm of the best slots sites for UK players has influenced the popularity of these games.
Before we discuss the complexity of online slots and the different type of games you will find on the different slot sites available in the UK, it's worth noting also that the Return To Player (RTP) percentages tend to be higher online than at most casinos.
While this does not mean that you are guaranteed to win when you play online, higher RTP percentages mean that players get a better deal.
The slot sites in the list above feature games with an RTP between 93 and 98% - which is generally higher than what you find at most live casinos.
Online slot sites make it easier for you to pick the slots with the highest return to player as they implement filters that help you do just that. And when they don't, you only need to follow our slots tips to pick the best slot machines to play -- every time.
How Do Online Slots Work
Online slots are among the simplest casino games to understand. That doesn’t mean they’re unsophisticated or boring, far from it. Their fundamental mechanics are easy to master, particularly when compared to the vast majority of table games you find on all the top UK online casinos.
Unless you run into a special bonus game or you begin the (often endless) chase of a progressive jackpot, all slots work in the same way. You:
- Set your desired bet
- Hit the spin button
- Wait until the reels stop spinning and show the result of your game
This basic gameplay changes in some of the newest video slots where bonus games and other features add a few layers of complexity that might require you, the player, to take in-game decisions that can affect the end result.
Slot machines are based on luck. While your choices can influence your chances to win (wait to hear about different payout slots and the return to player percentage), there are no strategies that can guarantee you a chance to win.
Online Slots Betting Tips
Depending on the slot machine you pick, sizing your bet might include a few variables you should be aware of. These influence the cost of your spin and, should you come out a winner, the sum you can put in your pocket, too.
Each slot has its own betting limits, but it’s typically the case that minimum bets start at £0.10 per game or £0.01 per payline. In certain slots games, you’ll be able to adjust the number of active paylines and the number of coins (i.e. bets) you want to invest on each payline.
The more variables you can adjust, the more control over your bet size you’ll have -- and that's clearly a good thing. What is not so good about these casino games, is that the only way to access the top wins on a slot game with said betting options is to play all paylines and invest the maximum amount of coins allowed. In other words, these games are expensive and might not be a good fit for everyone's bankroll.
This is specifically the case of jackpot games. The most popular casino games at brick-and-mortar casinos are also the most expensive and elusive gambling games part of the slots family. Taking down the top prize on a slot game with a progressive jackpot requires slot players to commit to playing the maximum bet every time - meaning one could easily run out of funds in just a few rounds.
So - you might be thinking: " how much money do I need to play slots online?"
Although every player might have a different answer based on their disposable income and the reason they play casino games online, here are a few slots tips that will help you understand how to size your bets correctly.
- Play to have fun, not to get rich. Every online slot game you find is based on luck, so the outcome of every spin is completely out of your control. Knowing this, it should be clear that you should fire up a slot machine to have fun while you play -- not to chase results that, again, do not depend on your actions.
- Play money you can lose. It doesn't matter what slot titles you play or whether you picked a high-volatility slot with a high RTP or not: always play casino games with the money you are not afraid to lose. This will help you define the size of your bankroll and understand how much you can invest in online slot games.
- Decide how long you will play. Once you know how much money you can spend to have fun playing on slots sites, decide how much time you are going to dedicate to the games. If you plan to play for hours on, you'll need a big bankroll and you'll have to settle for £0.10 games and penny slots. If you are in for a quick bite, who knows, perhaps your bankroll could even fit some jackpot games!
Once you’ve found the sweet spot, hit the spin button and wait. Finding the ideal bet size takes a bit of work - but it's really all there is. Anything after that is in the lap of the slot gods. The reels spin and, if you match enough symbols across an active payline, you’ll be a winner and take home a prize.
Types of Online Slots
The variety of slot games that are available today is one of the main drivers of the popularity of this genre. There are many types of slot games, so it is important to understand which ones you should be looking out for and which ones will best suit your needs.
The following list covers the main games you’ll find at our recommended casinos and some the top titles within each.
These games are digital replicas of one-arm bandits and fruit machines that made the fortune of Las Vegas and Atlantic City casinos. Most of these titles feature three reels and 1-5 paylines. Add to this a collection of familiar symbols, such as fruit, bells, and 7s, and you’ve got online games that hark back to a time before the internet.
Depending on the slots sites you pick, these games might be categorized also as Vegas slots or fruit slots - so you better keep an eye out for these specific themes the next time you register to play on a slot site.
When it comes to the best classic slots to play online, these are the top 10 titles that UK players love:
Video slots form the backbone of almost every online casino and, let's face it: these are the games most players enjoy. Numbers can vary but it’s not uncommon to see 500+ games packed into a single slots site. Some of these games can feature three reels but it’s much more common to see five...or more!
The number of paylines can be anything from 5 to 100+ and there will often be at least one bonus feature. In fact, it’s bonus features that help define video slots and make them popular. The other major selling point is the “video” element.
Animations and in-game video clips add another layer of entertainment to the overall experience.
The top 10 video slots in the UK in 2021 include a mix of classics like Gonzo’s Quest and Starburst sitting alongside a number of interesting new games.
The branded-slot category includes some of the best-known gambling games available online - with titles that are popular also among the players who have never played them.
Branded games are associated with movies, TV shows and sports teams, as well as popular brands of other fields and industries.
The fact these games act as the official 'ambassadors' of popular brands in the gambling world pushes developers and game studios to go the extra mile and bring to the market (and the slots sites) titles with top graphics and gameplay.
While these are often not the highest-payout slots on offer at most UK slot sites, the gameplay and features of these real money games more than make up for that.
Seasoned casino players will know most branded slots from their trips to the gaming floor at brick-and-mortar casinos. If you are not such an experienced player, these are the top 10 branded slots to play online in 2021.
Progressive Jackpot Slots
Jackpot slots are considered royalty in the online gaming world because they offer the richest payouts. These larger-than-average prizes are created through a system of communal contributions. A small percentage of each bet you make goes into a communal prize pool. The same goes for everyone else playing the jackpot slot in question.
Because there are thousands of players adding to the pot every day, the top prize is always increasing in value. Moreover, the value of said jackpots far exceeds anything non-progressive games can offer. This means prizes worth more than £1 million are common.
As we said earlier, these slot machines are not for every player. Jackpot slots can be very expensive - especially as the only way to play for the progressive jackpot is to bet the maximum on every spin. When it comes to jackpot slots, our advice is not to get too fixated on the seven-digit jackpots advertised by the different sites, but continue to play for fun.
If you are interested in jackpot slots and you would like to know more about the top jackpots in the UK as well as the real chances you have to take down one of the top real money prizes up for grabs, we have an in-depth guide dedicated to the best progressive jackpot slots to play online.
As of 2021, the most popular slots with progressive jackpots in the UK are ones grouped in the table below.
Modern technology has transformed slots in recent years. One of the latest innovations to strike a chord with players across the UK and beyond is Megaways. Dreamed up by Big Time Gaming, this technology creates a random payline structure.
The premise is thus: the number of paylines changes each time hit the spin button. There are usually six reels in play and the number of active paylines can range from a few hundred to 117,649.
In fact, some of the more recent Megaways slots have over 200,000 paylines. This level of potential is obviously appealing. However, the main reason more players are spinning these slots is that you never know what’s going to happen next. One minute you’ll have 500 ways to win, the next you’ll have 5,000. That’s entertaining.
Some of the best Megaways slots online available to players in the United Kingdom are:
How to Pick the Best Slots
Before we answer that and we try to come up with tips to pick the best slot machines every time you play, it’s important to note that “best” is a relative term when it comes to anything that has to do with online casinos and real money gambling.
No one can point to an objective reason as to why X is better than Y. Some players like classic slots with three reels, others prefer Megaways games with 117,649 paylines. Therefore, any list we produce will always have an element of subjectivity. But what we also try to do is look at the facts and give you a list of games highlighting key slot features like the RTP, the volatility, and the payout percentage.
We want you to use our guide as a starting point. Use it to learn more about how to pick the right slots for your money, what slot providers to consider, what features matter most, and how some forms of gameplay impact your chances to win.
From there, you can compare these qualities to other slots and find one that suits your preferences. Finding the best slots online is part scientific inquiry, part art. With that in mind, here are five features that all of the top online slot machines have in common.
Return to Player
The Return to Player (RTP) is expressed in percentage terms and it indicates how much of the wagered money a slot machine will pay back to players over time.
While it is always good to pick a slot machine with a high RTP, this should not be considered as a guarantee that players will win -- as the RTP is a theoretical number calculated 'in the long term,' or taking into consideration an undefined large number of gaming sessions.
The flip side of the Return to Player is the house advantage, the mathematical edge online casinos have over the players, and the reason why we continue to stress that gambling is a matter of luck and real money games should be played for fun and not to seek any financial profits.
Following the rules imposed by the UK Gambling Commission, all the online casinos the operate in the UK need to publish the RTP of all their games. On nearly every slot site out there, you find this information by clicking on the 'i' button included in every slot machine game.
The concept of volatility (often referred to also as 'variance') is an important one when it comes to defining the payout percentages in slot games.
Volatility refers to both the frequency with which a slot pays out and the size of the prizes it pays out. When it comes to volatility on slots, there are three types of games to consider:
- Low-Volatility Games: these are the slot that pay out often, but where the winnings are very small in size.
- Medium-Volatility Games: these offer frequent wins and in different sizes.
- High Volatility Slots: these are the slot with the biggest payouts. Unfortunately, these are also the games that do not distribute big wins very often.
While online casinos are obliged to share the RTP and house advantage of their games, they do not need to show details about the volatility.
The best way to know what cluster a slot game belongs to is to read slot reviews or use free spins to understand how the game behaves.
Some of the best-known low-volatility games include the penny slots part of the Quick Hit series by Bally. When it comes to high-volatility ones, the most famous game of this kind is Microgaming's Mega Moolah.
Broad Betting Limits
The best online slots are accessible to everyone. Although demo slots allow you to use virtual chips and play for free, playing these casino games for real money should never cost more than you are willing to spend. You have to make real-money bets if you want to win cash prizes and there needs to be betting limits that suit all players. The best slots have these.
As a general guide, we like games that allow 1p coin size bet and that do not require too much money to enjoy a few good spins.
Many slots don’t allow you to adjust anything other than the size of your bet between spins. However, there are some that allow you to adjust the number of active paylines and the amount you’re betting per payline. Having the ability to adjust these variables isn’t a necessity but it is nice to see. The more things you can tweak, the more control you’ll have over the amount you’re betting and the actual cost of all your spins.
Special Features, Bonuses, and Other Extras
An online slot becomes a hot slot when it’s packed with extras and features more than just one bonus game. Spinning symbols is great but we all love when spins trigger unexpected surprises. This is where mystery pick’em bonus rounds, wilds, free spins, and multipliers come in.
Each of these extras adds something to the base game and, in turn, give you more ways to win or to enjoy the time you spend playing slots. What’s more, they give slot providers a chance to indulge their creative sides and build a narrative into their games. This combination of storylines and random surprises is entertaining and the reason many slots stand out from the crowd.
Entertainment and Engagement
The final quality that all the most popular online slots share is entertainment. Although the themes and underlying storylines will be different, all the hits encourage a certain amount of engagement. This could be through some atmospheric sound effects, in-game videos, or interactive bonus rounds. If you’re playing the best mobile slots, you can also use things such as swipe-to-play and shake-to-play. These features make your experience even more tactical and, therefore, immersive.
Best Online Slots for UK Players in 2021
By now, you should know how to browse through the games offered by all the top online casinos to find slots with the right betting options, RTP, and volatility for you. And even if it's fair to say that the best slot games online are those you enjoy the most, there are a few games that have all the right numbers to be at the top of every player's list.
That's why we prepared a list of the 15 best slots in 2021 that UK players can enjoy with free spins and bonuses. Check out the list of the most popular slots in 2021 and visit the best online casino for each game to discover what bonus offer you can claim.
What Online Slots Pay Out the Most?
It's essential that you understand the payout percentages for real-money slots if you are one of the many people who enjoy playing online casino games. This part of our guide to the best games and slot sites will cover all the most important aspects of online and offline casino payout percentages. With this information, you will be able to understand how to find the best slots, as well as what slots site to pick when you want to play.
The most experienced players always seek out the slots with the highest odds of winning. While it is fine to gamble for entertainment, you should also know that you will have more fun if you have the best odds of winning.
This section will explain how to choose the best games, and how to maximize your chances of winning when you play slots. If you want to jump in the action immediately, check out the table below to find some of the slots that pay out the most at online casinos available in the United Kingdom.
Online Slots with the Best Payout
Before you deposit money and invest real cash on the best slot sites, always check the pay table of the game you are about to play. The pay table is where you see all the most important details of the slot, including the maximum payout possible, the RTP, and the combinations that lead to the biggest wins.
Always verify the type of slot machine that you are playing. While Vegas slots may sometimes offer the same payouts as progressive games, you should not expect to win a jackpot playing penny slots machines will be disappointed.
Also, when it comes to the RTP, make sure to play the game that offers a percentage of at least 90%. These games are more likely to pay out than those with lower RTPs.
When it comes to the slots with the best payouts, these are the games available at the best slot sites in the UK:
Slots with the Highest Payout
|Rise of the Pharaohs
|Book of Dead
|Wheel of Fortune
||Big Time Gaming
How to Find Loose Slot Machines
Online casinos are your best option if you want to find and play loose slots online. Lower operational costs mean that online casinos can offer games with higher RTPs compares to their live counterparts and, as you now know, this is a good thing for players.
Players refer to slot machines' payout percentages when they call them "loose" or "tight". A looser slot machine pays out more frequently and at a higher percentage, while a tighter one pays out less often and has a lower RTP.
The "hit frequency" stat is another important stat you should be looking for. This percentage also refers to the likelihood that each spin will result in a win for the player.
This number doesn't indicate how much the player wins. It simply indicates how frequently the player will win more money than losing. One in five winning combinations will be generated by a game that has a 20% hit rate.
If you want to play loose slots, look at the RTP and use the internet to read slot reviews. The best choice is always to use your spins on slots with a high RTP percentage. So, do your research and aim at titles that come with a house advantage of 5% or less.