UK Slot Sites 2021

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What are Slot Sites?

Slots are virtual slot machines with 3 or more reels. They can be very simple or have many additional characters and functions. The player receives a win after making different combinations of pictures.

On the Internet you can find several thousand names of slot machines. All of them are divided into unique games and copies, which can differ from each other only by pictures and names, but the nature and rules of the game, as well as bonus tables (or payouts) will not differ from each other in absolutely nothing. In general, low-quality and dubious casinos abound with such slot machines, and there is certainly a difference between the slots in normal gaming dealerships. But it cannot be said that they are all completely motley, no, given the differences they have some common features.

Online Slots Variations

Slots have various variations of their performance. All of them are divided among themselves into 4 types.

Video Slots

Video slots are slot machines presented on online venues and in land gambling halls. The main difference between such devices is the lack of physical reels with symbols. Video slots are based on computing programs and electronic control mechanisms.

As new computer technologies emerged, gaming machines moved from mechanical to electronic models.

  • increase the variation of combinations due to the greater number of symbols on the reels;
  • provide a larger number of lines or refuse them altogether, replacing them with methods of forming prize combinations;
  • use new options on the slots: prize games on the secondary screen, bonus features on the main screen, and so on;
  • use 3D graphics.

For the rest, video slots are no different from classic slot machines. The rules and principles of the game are fully preserved. The user’s task has also not changed: during the spins, you need to collect prize combinations in order to get a reward.

Jackpot Slots

What could be better than one happy combination in one wonderful game? Playing jackpot slots, you get the opportunity to hit a big jackpot regardless of the amount at stake, while having an extensive and fun selection of new top slots. The visual component, graphics and software are just as colorful and exciting as in any other slot, so whether you are new to the world of online slots or an avid player, there is no limit for you to choose jackpot slots.

While regular slots winnings are earned based on your bets, jackpot slots give you the opportunity to win much, much more, up to millions! Regular slots give you “prizes” or jackpots with a fixed amount multiplied by 20, 100 or 500 of your total bet. At a bet of 10 cents per spin or £10 per spin, along with a fixed amount, the potential of your prize is also determined, which means that you will have to bet more to win in order to win a large sum on a regular slot.

The jackpot slot collects prize money from all participants who have played a certain game, either at your favorite online casino or from many other online casinos connected by a virtual network. This means that players (possibly from different casinos) invest in a large common pool every time they make bets on the slot. In this regard, jackpots are not fixed and are constantly growing with each game, and can reach millions of pounds. An additional bonus to playing jackpot slots is that you can make small bets and still win large amounts. Once the jackpot is won, the counter returns to its original number and accumulates again as more players play the game.

Now that you know that jackpot slots are the best way to win a big prize, you should learn how to choose the best jackpot slots for yourself.

The local jackpot grows only when players in specific casinos try to spin the drum. Often, the local jackpot slots have less jackpot than progressive jackpot games – often less than £100,000, but sometimes there are about £1,000,000. Depending on the casino, there may be a dozen or several dozen jackpot slots tied to a common jackpot. The more slot machines tied to the network, the faster the jackpot grows, but also the less chance of a winning combination.

Classic Slots

These are the simplest slots. The game on them is significantly different from the game on modern slots. Less fuss, no flashy graphics, complex animations and an endless amount of features. It is easy and pleasant to play them, although this is only in the mood. Sometimes they may seem too primitive. Often in modern slots it’s hard to keep track of which lines give prizes. And here there are a maximum of five lines and everything is obvious. Some may even offer one pay line. Then you are definitely not mistaken whether you won or not.

Often, the simpler the slot machine, the higher its theoretical return. However, the classic slot machines are also characterized by the fact that they often have a high dispersion. This means that, although the winnings are irregular, players can get big wins. Such high-risk slots are popular with many players.

Due to its simplicity, classic slot machines are great for beginners, as they will not be overloaded with information. Indeed, in modern slots, pay tables can look awesome for someone who knows nothing about slots. And in classic slots, usually there is only an enumeration of symbols and payments on them. They are also suitable for beginners, because the minimum rates there are usually lower than in modern video slots. So you can not spend a lot of money. One – five lines, which means that you can bet even from 1 cent. In modern slots, it is often impossible to change the number of lines. This feature has been popular before, but is now less common. Therefore, the stakes are usually higher. You will no longer be able to activate one of 20 lines by paying 1 cent.

Progressive Slots

It is also called cumulative. Today it is the most popular in modern online casinos. A progressive jackpot is a prize pool that receives a certain percentage of the bet amount. And it directly depends on the number of spins.

Progressive jackpot slots accumulate a prize pool from each bet. Therefore, on the Internet, where the number of players is in the millions, huge prizes are being recruited. If the user gets a winning combination on the slot machine, he breaks the jackpot. If none of the players gets such a combination, the prize pool is not raffled off, but only increased.

The accumulative jackpot from all bets is replenished, regardless of their size. Thus, the more users play the progressive jackpot of the game, spinning the reels in the slot, the greater reward awaits the lucky winner when a winning combination occurs. However, often, in order to qualify for the jackpot, you need to bet the maximum amount.

There are no clear strategies for breaking the jackpot, since it is impossible to reliably predict the outcome of the random number generator.

When playing in progressive slot machines, you need to consider that in order to get the maximum winnings, in most cases you need to make large bets. As a rule, this is the maximum amount of 5 coins. You can bet less, but then, having won the jackpot, the player will receive a significantly lower payout only because the bet was not maximum.

The jackpot counter in real time shows players the current size of the prize pool. This is one of the most powerful advertising tools based on the psychology of human perception.

Therefore, the counter, as a rule, is large, decorated in bright colors and placed directly in front of the player’s eyes. A person is simply fascinated by the opportunity to monitor how the size of the prize pool grows while the reels of slot machines spin.

Jackpot counters are also placed not only on the site of the online casino itself – they are actively used as advertising on thematic information resources and banners.

Slots Software Providers

A large selection of games is the main component of top slot sites. Casino providers are well-known European and Asian brands that offer more than 2000 games for online projects: hundreds of slots, card and table games, games with live dealers, dozens of virtual sports for betting. Game developers for online slot sites like Amatic, Microgaming, Endorphina, TomHorn, Habanero and many others have long won the loyalty of millions of gamers around the world. Thanks to casino software providers with high quality graphics, design, sound from our partners, your casino will enjoy great success among the players.

  • Amatic. The company appeared in 1993 and since then has been successfully operating in the international B2B market. Today, the Amatic provider team has over 100 professionals. Their main goal is to combine the best technologies and first-class production in order to create innovative software for the best online slot sites. Amatic optimizes its products for operators and players from around the world, so it compares favorably with its competitors.
  • Microgaming. The company was founded over 20 years ago on the Isle of Man. Since the appearance on the gambling market, it has established itself as a reliable gambling provider and has become famous for its many developments. Microgaming licensed software is used by more than 450 brands.
  • Quickspin. The company began operations in 2012 in Sweden. It was founded by three experienced professionals who in the past worked on projects of companies such as NetEnt and Unibet Group. Quickspin head office is in Stockholm. Here, a team of talented developers creates original online slot machines based on HTML5 technology. Quickspin games work great in new online slot sites, as well as on the mobile platforms Android, iOS, Blackberry, Windows Mobile.

These are the best providers whose software is available on all top slot sites in UK.

Mobile Slots

When the soul asks for gambling winnings, and a PC or laptop for some reason is out of reach, choose mobile slots, because the usual gadget, even the most budget one, is enough for them. This only works on Android / iOS. Without any technical difficulties, you will instantly get access to the richest assortment of winning entertainment. You can even safely say: the most advantageous, because institutions that are carefully selected provide only the highest return.

You can play mobile slot machines for free / with a deposit completely on fair grounds, if you use a casino from the list of the best online gambling slot sites. Their RTP is always confirmed by audit control from reliable and independent organizations.

Of course, various changes and simplifications to the interface are made to the mobile version, but the chance of winning is determined by the same RNG as for the basic version. Therefore, you can win no less than with a PC. And the interface itself is simplified so as not to overload the screen with not the most important information. Plus, the control buttons are made in a larger form, so that you do not need jewelry accuracy using the touch screen. In general, playing is simply extremely convenient.

All the best UK online slot sites have a mobile version.

Slots Bonuses

But also in the slots themselves you can get bonuses. Mostly, these are free spins. Free spins are the most common option. The number of free spins and some other rules may vary. Often this is about 20 spins with one or more restarts. That is, bonus rounds are launched, and when certain symbols appear, additional ones are added to them.

You will find this in most slot machines with bonuses. Less common, but still common, are bonuses like Pick and Click. The player is presented with several items, and he needs to click on one of them. There are two options for the development of events in slots with such bonuses. The player either has only one choice, and he receives only one gift. Or he continues to click and collect prizes until he opens a special symbol, which means the end of the round.

Bonus Terms & Conditions

When you get free spins for registration, then you need to follow the rules of the promotion. Usually, to get the money you won from the slot, you need to wager this amount several times. Wager is the required amount of cash bets, which is superimposed on bonus funds in online casinos. Only after you fulfill this condition, you can withdraw this money to your account.

How We Choose the Best Online Slots

Games Library

The best slot machine sites provide players with a wide variety of slots. If you are going to play slots in a casino, then you need to find out about the number of available games. To do this, it is best to read the reviews. Here we will tell you about the best new slot sites, in which there are many slots. Also pay attention to the number of providers in the casino. The most of them, the more games will be. If you prefer a single developer, be sure to check on the site about the availability of his games.

Bonus Rewards vs Bonus Terms

When choosing a new slot casino sites, pay attention to the terms of the promotion. Remember that great conditions for wagering for free spins are beneficial only to the developer. Therefore, when choosing a site, pay attention to the conditions of the accrued bonus. The lower the wager, the more likely it is to win.

Banking Options

Due to the huge variety of online casinos, there are many different ways to make a deposit or cash out money that helps players make transactions without any difficulties or discomfort. Each player, before starting to spend time in a particular casino, must analyze all available methods of making a payment or withdrawing money and choose a suitable one. Basically, the casino prefers to pay winnings in the same payment method by which the deposit was made, this is done for the player’s safety. However, there are also such methods of transactions that are not supported by all online casinos, for example, payment of funds to a MasterCard.

In addition, we must not forget about the bonuses that will be awarded to the player if he uses a certain payment method. For example, many online casinos offer guaranteed. This is a bonus for players who use the electronic payment system MoneyBookers, NetEller, and others. Usually such bonuses are not very large, but at least something is better than nothing at all. Do not forget about the bonus system and find out the detailed conditions of certain bonuses.

Mobile Compatibility

If you prefer to play in a casino from a mobile phone, you should definitely find out about the availability of a mobile version in slot game sites. The devices are compact, portable, technologically advanced and constantly improved. Their functionality based on the Android or iOS operating systems is in no way inferior to home computers based on the Windows OS. Players are thrilled to be able to spin the reels on their mobile. They use their favorite entertainment, activate bonuses on touch screens, participate in tournaments. And all this without reference to one place. Convenient, isn’t it? Here you will find the best mobile versions of online casinos!

Withdrawal Terms

The most pleasant thing for most customers of online casinos is to receive money won. Of course, the game process itself can deliver a lot of positive emotions, but payments that materialize in the form of funds that you can spend at your own discretion greatly enhance a pleasant experience.

I must say that many users are careless about this item when they get acquainted with the new casino. It seems to them that if the institution is honest and reliable, then the main thing is to win money, and you can get it without any problems. Indeed, in reputable casinos, payments are made without delay, but only if the client fulfills all the conditions provided for by the official rules.

So, thinking about whether you should become a client of a casino, be sure to specify in what ways you can replenish your account and withdraw winnings. At the same time, do not limit yourself to viewing the logos of supported payment systems at the bottom of the main page, but be sure to read about the features of using each of them. Not all methods that accept deposits in the same casino can be used to withdraw money.


Online casino support is very important for players. Quickly resolving issues or concerns is a sign of casino reliability. Specialists help to solve any problems with a beginner in the shortest possible time. These are not only game situations, but also technical difficulties. Therefore, look for just such clubs that will help you quickly adapt to your earnings. You can ask any question from the support service. If you get a competent and quick response, then this casino can be used.


Are online slots completely fair?

Many people think that online games are fraught with a catch and it is impossible to win. This is a misconception if, of course, we are talking about top rated slot sites. The activities of such clubs are carefully monitored by independent experts, and the slightest hint of deception may result in the loss of a license. And since the gambling business itself is a very profitable business, no one will take risks for a couple of frauds, you can have no doubt.

If we talk about the work of the machine, then it is built on the software of reputable developers who also monitor the cleanliness of their products. The game is based on a random number generator that gives absolutely unpredictable solutions in a split second. “Twist” it, in principle, it is possible, but reliable clubs with such things are not joking. But once you fall into an unlicensed resource, you may well become a victim of dishonest dealers.

Is it legal to play online slots in the UK?

Sure. An online casino in Britain is fully permitted if a player is over 18 years old and plays in a casino which has the legal right to provide its services and has a license.

Is there a strategy to help me win at slots?

The game on the slot machine is subordinate to the random number generator, therefore, the strategy of playing slot machines, which brings tremendous profit, cannot exist. When playing on slot machines, really a lot falls on random numbers.

How much can I win playing online slots?

In slots, you can win up to several millions. It all depends on the size of your bet and on luck. There are many stories when players won millions of dollars at the lowest possible bets in progressive slots.