Welcome! This is where it all happens – non-stop slots action!
Hundreds of the best and most popular online slot games are available here for you at Prime Slots UK. As you first register, you can get your Welcome Bonus Spins (18+ | T&Cs Apply) and start playing.
If you’re new to online slots, scroll down to our How to Play Slots Guide – everything you need to know about online casino slot machines.
May the Spin-Force Be With You!
There are many types of online slots available on Prime Slots, from the best slots developers in the industry. When you hit the Play button, things will start happening. Music kicks in, reels spin, paylines present themselves giving you the chance to win, wilds animate in front of your eyes and scatters award you with different bonuses.
This is your chance to understand how online slots work. We’ve put together a comprehensive guide of online slot machine games – main features, tips for how to set your bets, breakdown of odds and FAQs. It lays down the basics first, and then goes in detail into the different features of the game.
You are probably familiar with the Classic Slot Machine. Three reels spin, and in order to win you need to get three identical symbols lined in the middle. When you play slots on the web, well, it’s a whole different game.
Online slots UK games, or as they are also called, Video Slots, are more than that. First of all, most have five reels. The second thing to understand is that the winning streak doesn’t need to appear in the middle row. It can be in the top or bottom row, it can be diagonal or in zigzag. Also, the locations of the winning streaks change from one slot to another.
Welcome to the slots online world. How would you know you have won if there are so many different winning options that change from slot to slot? Worry not; you will be let known of your every win by the game’s software.
Let’s start with the most important aspect of playing online UK slots – paylines. This determines so much of the game you’re playing, how much should you bet on each spin, what are your chances of winning, how quickly the game progresses and the level or risk vs. chance. First thing, definition of paylines.
As mentioned above, in online slot games there are various possible winning lines. Usually, there are 9 to 30 different winning lines for each slot game, which are called paylines. They look something like this:
In this game above there are 25 different paylines. Meaning, with every spin you have twenty-five possibilities of winning. As you can see, some paylines run straight, some diagonal while others zigzag the reels. The important thing is, if you get any of these 25 paylines, you get a win.
Another important thing to understand is:
You can stand a chance at a winning streak anywhere along the payline. The matching symbols don’t even need to be next to each other, or in any specific place along the payline.
Let’s explain this. In the game shown above there are 25 paylines. Meaning: with every spin you have 25 different ways to win. Before every spin you need to decide on how many paylines you want to bet; it can be on only 3 lines, or 18. You can select any number from 1 to 25. You can’t choose which lines you want to bet on, just the number.
If you bet on 1 line, you play for 1 coin in every spin. If you bet on 6 lines you play for 6 coins in every spin. The more Pay Lines you bet on, the higher is the amount of money you spend on every spin.
A Wild Symbol is basically anything you want it to be, or actually, any symbol the software chooses it to be. No matter how you look at it, wild symbols increase your chances of winning. Here’s how.
In slots you need three identical symbols in order to win. But - you can win with only two identical symbols if along the payline you also get a wild symbol. Wilds can stand for any other symbol. If you get two cherries and one wild - you win! If you get one spade and two wilds – you also win!
The last thing to know about wild symbols is that they come in all shapes and sizes. Each slot has its own wild symbol design.
Scatter symbols are another great feature of online slot games. They can generate a number of different outcomes: Scatter symbols could award you with coin prizes, free spins or bonus rounds.
In order to get these prizes, you’ll need to have 3 or more scatters appear anywhere on the online slots reels, in no specific order or location. (There are some online casino slots UK where 1 or 2 scatters are enough to generate a small prize, but that’s not the norm.)
Important to know: Scatter symbols don’t need to land on a payline. As long as they are visible on the screen, they count.
As mentioned, scatters can generate free spins and bonus rounds. Another common activation of scatter can be that of a multiplier – it multiplies your win x2 or x3. The best part is, scatters multiply your entire win from the round, not just that of a specific payline.
There are exceptions however; wilds cannot substitute for scatters. Three scatter symbols are needed to generate a winning feature, and in this case the wilds can’t stand for a scatter; you’ll need all three.
When you want a chance to win real money, you can start each online slot game by deciding the amount of money you wish to play with. There are two steps to complete:
1. First thing is: Deciding on the Bet Amount. In every slot you will have Minimum and Maximum bet points. For example, from 0.5 to 100 coins. Meaning, you can bet half a coin on every spin, or 100 coins, or anything in between. Needless to say, the higher your Bet Amount is, the higher the possible reward will be.
2. Next, you need to decide on how many paylines you want to bet. Crucial to understand: the Bet Amount is for a single payline. As explained in the payline section above, most slot machine games give you the option to decide with how many paylines you wish to play, and you’ll need to multiply that by the bet amount. If you decide to play with 2 coins and choose five paylines, you will bet 10 coins on every spin.
Once you’ve made these two decisions, you are ready to play. The only other decision you’ll need to make is a very simple one: to click yourself every time on the Play button or select the AutoPlay feature.
Two of the most fundamental concepts to understand about slot machines are ‘return to player’ and ‘hit frequency’. Together it gives a general idea of how "generous" a slot machine could be. Both are per machine.
RTP – RTP stands for Return To Player. The RTP percentage is a measure of the percentage of stakes a game returns to players (generally over a minimum of one million plays), and is a generally accepted guide to how a game will perform.
Important to note: online slot games have a much higher RTP than land slot machines.
To find out the RTP of an online slot game, click the “i” or “?” button in the main screen of the game. All online slot games must display their RTP.
Hit frequency is the percentage of times a slot machine will stop its spinning on a winning combination. Meaning, if a slot machine hhas a Hit Frequency of 25%, it will generate a winning combination of approximately 1 out of every 4 spins.
The average here varies widely. Let’s say it is between 10 to 30%, for UK online slots.
Important to note: high hit frequency doesn’t necessarily increase your overall winnings. Why? Because it also depends on the RNG (Random Number Generator).
The best part is, you’re completely free to play slots anytime and anywhere. Prime Slots offers a wide selection of exciting casino slot games on many mobile devices, like iPhone and iPad, Android machines – smartphones and tablets; it’s the best way to enjoy Prime Slots on mobile - register, make a deposit and start spinning away!
If you’re a fan of the classic fruit-machine, Vegas style, then you’ll have a great time with the various types of mobile slot machines we offer. What’s more, in keeping with the Las Vegas tradition, we offer jackpot machines as well as progressive jackpot machines.
That is all you really need to know in order to start to play your favorite UK slots online. If you read thus far, you are ready. Have fun spinning the reels!
It’s very simple. Here’s how
All of the online slot games on our site are set to payout approximately 1 out of every 3 spins. This average is in line with industry standards, and, you should know, much higher than physical slot machines in brick-and-mortar casinos.
Prime Slots UK adds a new popular game once every week or two. Sometimes even more frequently!
All of our casino slots have bonus game features in them. Slots with bonus games and rounds are one of the main attractions of the game – can’t imagine one without the other.
You’ll get your own personal account manager, immediate access to privileged loyalty-only slot machines, special bonuses and special treatment.