Free no deposit online UK slots sites

Many myths and misunderstandings exist, in the way people understand the online casino slots. Maybe you are one of those or just one of many that wish to win bigger slot jackpots but without a clue on how they work. You have truly come to the right place.

On this page, you will learn about playing the online slots for free, giving you more knowledge about the game, and experience, before registering an account.

Table of Contents

starWhat are the best slot machines for you?

Slot machines for the beginner

Is it possible to be good or bad at playing online slot machines?

It really isn’t a question of whether you are good or bad at playing online casinosA newbie in online casino tends to play the low-volatility slots. These type of games normally gives more, and small, winnings so that you can keep playing.

Depositing £20 as a new beginner, you would probably want to enjoy your money for as long as possible, exploring the different casino games and services. Maybe the casinos don’t support mobile play or are having bad customer support?

starSlot machines for the experienced player

High volatile slot can payout high winnings. At some times even higher than jackpot-games! This has to do with the online progressive jackpots at UK casinos. A UK jackpot never gives more than £100.000 whereas high-volatile slots are limitless and can pay our millions. 

The negative side of the high-volatile slot machines is the fact that you can play them for a long time without any winnings, and hereby losing your money quickly. But once hitting a good combination, you will win BIG!

Which UK casino are the best for playing slots?

Picking an online slots site can be an easy task, as it can be very hard to find the right one. Mainly there are some criteria to look into:

  1. Always introducing latest new slot machines
  2. A big selection of different slots for mobile and computer.
  3. A big welcome bonus with small wagering terms.

Our review ratings don’t reflect the above-mentioned factors. They are reserved for live casinos, mobile casino, and other options. Below you will find the best performing slot sites in the UK in 2020.

Get 100% match Up to £200 + 11 Wager free spins on Starburst TODAY!

stars 8.9

Play responsibly. Full T&C’s Apply. 18+ BeGambleAware.org.

50 free spins & up to £50 matched first deposit bonus

stars 8.6

New UK customers only. Opt-in required. 1x per customer. Free spins on Lucky Mr Green only. Max. 50 free spins at £0.10/spin with 35x wagering. Spins expire 72 hours from issue. Game, country, currency, player restrictions and terms apply.

Get 100% match Up to £200 and 11 WAGER FREE Spins Today!

stars 8

18+. New Casino players only. Deposit required. Maximum bonus £200, 35x wagering req, accepted within 14 days, valid for 30 days. T&Cs apply.

100% match up to £200 and 20 Free daily spins For 5 days

stars 7.7

Only to new depositing players. 18+. Minimum 1st deposit bonus: £10. Welcome Package split over 3 deposits. Minimum deposit for 2nd & 3rd deposit bonus: £20. 35x Wagering requirement applies to match up bonus. 100 spins split to 20 spins a day for 5 days. Spins credited in specific games. Spins expire after 24 hours. 50x Wagering requirement applies to spins. Terms and Conditions apply.

Welcome Bonus up to £1000 + 100 Free Spins on Signup TODAY!

stars 7.7

New players only. Make sure to wager from your real balance first. Wagering requirement is 50x. Wager is calculated only on the bonus bets. Max conversion is 3x the overall bonus amount. Skrill deposits are excluded. The minimum Deposit is £10. Other T&Cs apply.

starThe random number generator

Before starting your favourite type of online slot machine, we recommend that you look into how the math behind the game actually works. This might not be the most fun reading, but it is for sure, a knowledge that can be measured in gold. Especially for inexperienced online casino players. To this point, it is important to understand that, the casinos are NOT dabbling with the machines. In this post you can read about myths and misunderstandings when it comes to the slots.

In all online slot machines, there is a computer component often referred to as the random number generator (RNG). The purpose of this is to ensure random number sequences in the intervals of milliseconds all day long, each day.

RNG’s produce random series of numbers every time you hit the spin button or the max bet button.

Any online casino in the UK has games controlled by RNG’s deciding the outcome of the slot machine. These outcomes are dependant on a combination of algorithms and software. These systems deciding the outcome are never based upon spins happened in the past. They only decide one future spin ahead.

Controls are being made by The Gambling Commission and the international organization eCOGRA. eCOGRA is an international test-specialists for different types of online products and ISO-certificates.

In other words: the online UK casinos cannot cheat you!

starSlot machine game providers

Many different companies are developing online slots just like computer games. Every game studio is building games using their own tools. Below you can read more about the most popular game developers and try out their slots for free.

Classic slot machines

Classic slot machines may have a more humble appearance, than the majority of the new younger and more advanced counterpart slot machines, but they are still just as popular in the online gaming community. With a more simple and old-fashioned looking appearance, the online retro slot machines still create a nostalgic feeling among many players, often due to the well-known fruit symbols, lucky-number seven, traditional-looking bars and bells.

The retro slot machines may not have as many free spins, and free cash bonuses, as their advanced descendants, but that doesn’t mean, you cant win the jackpots at classic slot machines.

There have been major jackpot winnings at the old-fashioned slot machines just as long as the game has had its origins. The original, retro slot machines also called fruit machines, bell slot machines, and one-armed-bandits have been making poor people rich since they were invented in the 19th century. Actually, the very first slot machines did not give any winnings at all. Well, at least not in the form of money. The whole idea revolved around giving out chewing gum. Did you hit three cherry symbols, the reward was chewing gum tasting like cherries. The same thing applied to oranges, melons, etc.

This was before any technological inventions, as you might imagine.

starModern made classic online slot machines

The same excitement and joy are also to be found at the modern versions of the old classic retro slot machines and one-armed bandits.  This is one of the reasons many still favour these old classic games, even though modern video slots, 3D-slots and jackpot slots co-exist in the online casino world.

If you ever, in connection to online gambling, experience bigger joy from the more traditional casino feeling, you should check out our selection of free retro 3 bar-slot machines and the more refined classic 5 wheel slot machines on this page.

With better access to online slot machines, you have a better opportunity if playing the favourite classic slots for free, or real money, no matter where you are or when you have the time.

The selection is vast so that you can be sure, you will find a broad assortment of slot machines fitting your taste, needs and budget in Betkingcompares listings of free classic slot machines to play online. It’s been made, so you can make a quick, easy but well-determined decision.

Whether you are choosing a NetEnt slot machine with a fruit theme, Microgamings popular retro slot machines with big jackpots or another classic machine from a different developer, we are certain, you are going to have a lot of fun. So let’s get going, hunting the cherries and diamonds – good luck to you, too!

3-wheel slot machines

classic 3-reel slot machine called single line slot machines is one of the simplest slots in the online casino market. An alternative reference to the one-armed-bandits: a name that has its origins in the former known mechanical slot machines, that actually had a handle the person would have to pull to start a spin.

3-reel slot machines are one of the best slot machines, for new online casino players to begin with. This type of slot machine is simple to understand, easy to play at, and at the same time very entertaining. Many experienced online casino players prefer 3-wheel slot machines. But, to improve your chances of winning jackpots, it is important to understand the most fundamental rules.

A typical 3-reel slot machine consists of 3 wheels with different symbols. When spinning, the random number generator (RNG) will stop the 3 wheels across one line. Mostly 3-reel slot machines will only accept bets of 3 coins per spin. The winnings on 3-reel slot machines are good, and will also consist of multiple generous jackpots. You can try slot machines for free beneath, but remember, that you most likely won’t be able to use your welcome bonus on jackpot games.

starWhich kind of slot machines exist?

Are you a big fan of casino games, but have not clue which kind of online slot machines, that actually exist?

Beneath you are finding a list of different reviews of interactive, free slot machines. They will give you the opportunity to play a slot machine for fun before you register for a casino account.

The reviews are, especially to new inexperienced players providing valuable knowledge and useful information. This makes it easier to get one with your playing in a safe and healthy way, knowing that you have utilized the right casino welcome bonus and that you have found a slot machine entertaining your specific needs. We are actually quite sure, this will improve your online slot machine experience significantly.

Jackpot slot machines

Jackpot slot machines give the online casino players, the possibility of the biggest winnings accessible in the online casino community. Jackpots can easily grow to hundreds of pounds, which is why this type of slot machine can be very rewarding, and hereby tempting for players that are seeking the biggest winnings. It is important to remember that the progressive payouts only pay at the max bets.

Progressive slot machines are connected across multiple machines, games ad casinos, making the collected jackpots even bigger. After the progressive jackpot has been won, the game resets, and the jackpot will be building from scratch. The big winnings following the progressive slot machines makes them one of the most popular types of slot machine online.

At our casino review page, you will find free online jackpot slot machines, but still, have to remember that most online casino welcome bonuses doesn’t apply to jackpot slots.

Are you looking for an online jackpot slot machine, we recommend you to visit Mr Green or LeoVegas. Both have a great selection in their online and mobile casino, that constantly is in the amount of hundreds of thousands of pounds.

Both casinos are offering welcome bonuses for jackpot slots, but you should talk to their support, read our casino guides, or read the terms and conditions at first. Thus making sure you won’t miss out on a big jackpot due to some paper troubles.

5-reel video slot machines.

A different type of online slot machine is the 5-wheel video slots. These are often referred to as 5-reel slots. The sounds, images, and the graphics of video slots are appealing, sophisticated and designed to improve the gaming experience significantly.

As with 3-wheel slot machines, the video slots have a row of different symbols, but in contrast to the 3-wheel slot machines, there can be more than one payout line. Some video slots can have up to 100 payout lines, that you can bet on. Video slots are also based on RNG. But, most importantly the hold a lot of extra game features, like free spins and bonus games. You can read more of this below.

Video slots have multiple advantages in contrast to 3-reel slot machines. Stuff like bonus rounds, free spins, multipliers, and an endless possibility of payment options. Winnings on video slots are often in the big end, the maximum payouts and progressive jackpots can be won by a single bet.

Video slots are also a good way of beginning for new players that enjoy modern designs accessible for both computer and mobile units. You can also spend your welcome bonus on these games.

This category of slot machines has one strong leader: LeoVegas. They are always in the top when it comes to new online slot machines, free spins bonuses and free cash bonuses. this making the players able to try more different games. Video, free spins, and bonus slot machines are fun to play at, they are modern looking and a rewarding way of playing online casino in the UK.

LeoVegas has a nice display and a strong selection of more than 400 games, inviting you to try more different casino games. Both free to play and for real money.

starFree spins slot machines

Many experienced players enjoy slot machines with free spins as they provide a longer gaming experience, due to the free spins being given away.

In the long term, free spins at online slot machines can give you the possibility of playing for free, as certain symbols land on certain payout lines, thus giving you free spins. The free spins bonuses are also a trend we have seen the rising the recent years, and will be expected to continue in years to come. Especially the top European online casinos are giving more and more promotions containing daily free spins for the players at specific days as well.

You might say that free spins slot machines gives more value for money. But they might not be the best option if you really want to blow the bank for money, as the prizes usually are in the small end. You can try the different free spins-slot machines for free below,  before deciding your favourite slot machine on the internet. Or before selecting your online casino of the best choice.

Bonus slot machines

Bonus slot machines are famous for the incorporation of a featured bonus round.

This bonus round is released by certain combinations and symbols on an active payline. The integrated bonus games are typically designed to complement the theme of the game, using lifelike graphics and sound effects, that makes the slot machines more alive. Many bonus slot machines are even interactive, and functions like small arcade games, that has multiple games within.

Bonus slot machines are appealing to fans of online casino games, and hereby attracting thousands of players on a daily basis. Whether it is a game on a bonus slot machine or not, there’s usually one decisive reason for many players choosing slot machines online to play on a regular basis. This is caused by the combination of joy and winnings from the bonus slot machines, as this type of game usually offers big winnings and free spins to winning players.

Pick a game of your choice and get to know the bonus games, Many NetEnt slot machines, launched after 2015, are likely to have these features.

starMulti-level bonus slot machines

Multi-level bonus slot machines is a different type of popular online slot machine for many players. The multi-level bonus slot machine consists of more levels, where each gives higher possibilities of bigger winnings and more rewards.

As you have succeeded one level, you can move onto the next, until completing the series. If a level fails, you won’t be able to move onto the next.

LeoVegas also holds first place when it comes to multi-level bonus slot machines in the UK. Their big selection of computer-based mobile slot machines makes them leading within this type of extra features game. The best welcome bonus for multi-level bonus slot machines in the UK is a signup offer including free spins, so that you may try as many games as possible.

X of Y-bonus slot machines are winnings, you can obtain at a certain number of special symbols at the wheels. This type of slot machine game is different from the free bonus slot machines, as the appearance of X of Y-bonus feature doesn’t depend on the position of a wheel after a spin, but on the other hand the required amount of a specific symbol on a different screen.

When playing X of Y-bonus slot machines, it is expected, that you choose en of more objects from a group of objects and then adding the winnings from each together. The X of Y-bonus slot machines can also be played on different levels. You will have to succeed at each level before moving on to the next.

In the UK online casino business, this type of slot machine may be known as the danish slots. Unfortunately, we are not able to offer games on bonus slot machines for free. But it won’t hold us back from reviewing them.

starAt which online UK casino should I open an account today?

This can be a tricky question to answer if you haven’t tried playing online slot machines of this kind before. Eventually, you will have to find a casino holding a welcome bonus matching your interests of play. If you are into slot machines with bonus features, you should aim for the casinos with the most recent and often game announcements.

If you have come this far, we salute your decision of becoming a better online slot machine player. Now, you have learned the basics of RNG, eight different types of slot machine games, and which casinos matching their casino bonuses with your preferences.

But there is still a thing we haven’t told you

You are able to be unfaithful to your favourite online casino. It is actually only a favourite of yours. When signing up at multiple casinos, you will receive more regular daily free spins bonuses, and promotions. And you will be able to draw advantage of the social aspects of casino games, play the most recently introduced casino games, and if you are really smart – even be able to play casino online for free.

Good luck! And don’t forget to visit Betkingcompare once in a while, as we are always on the move looking for that next free £20 no deposit UK casino bonus only for you!