The Ultimate Guide on How to Play Online Slots

So, you believe you’ve tried every type of casino game there is. Or perhaps you’re just starting to gamble, and someone told you slot machines are the easiest to master?

Regardless of why you want to play slot machines, the truth is that once you get the hang of it, playing slots is a piece of cake.

And while you may not need thorough directions to become a slot machine powerhouse, we’re still at your service. That’s why we’ve prepared this detailed casino guide to help you dive into the world of slot machines and witness first-hand the beauty of bonus rounds and free spins!

Close Down Arrow
Affiliate Disclosure | All Sites are UK Licensed Local License
Cozino Casino

100% up to £50 + 50 Free Spins


First Deposit Only. Min. deposit £10, max. bonus £50. Max Free Spins 50. 10 Free Spins must be claimed every day from the Daily Picks. Spin Value: £0.10 WR of 30x Deposit + Bonus amount and 60x Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the spin winnings and bonus amount or £5 (lowest amount applies). Spins must be used before deposited funds. First Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos

Software : Netent, Yggdrasil, Microgaming, Nextgen, Eyecon
Cash-out time : within 24 hrs
Playzee Casino

Welcome Bonus - 100% up to £300 Bonus + 100 Zee Spins + 500 Zee Points


18+ FULL T&C'S APPLY New players only. Min Deposit £20 Max Bonus Bet £5 Winnings from spins capped at £50 100 Zee Spins valid on Starburst (first 10 credited immediately upon first deposit; rest credited at 07:00 GMT at 10/day). Spins must be used by 23:59 GMT of the day on which they are credited to player account, any unused shall be removed. Bonus funds must be used within 30 days. Bonus funds are separate to Cash funds, and subject to 35x wagering (bonus + cash). Terms apply. Play Responsibly.

Software : Elk Studios, Microgaming, Blueprint Gaming, Evolution Gaming, 1x2 Gaming, Barcrest, Blueprint, Thunderkick
Cash-out time : Up To 24 Hours
All British Casino

100% Up To £100

Plus 10% Lifetime Cashback

18+, Welcome Bonus for new players only, maximum bonus is 100% up to £100, Min deposit is £20, No max washout, Wagering is 35x bonus, max bet whilst playing with a bonus is £5, eligibility is restricted for suspected abuse, cash back is cash with no restrictions, Skrill and Neteller deposits excluded, Cashback applies to deposits where no bonus is included. Terms apply.

Software : Netent, Microgaming, Slingshot, Just for the win, PlaynGO, Amatic, Novomatc, Scientific, Slingo, Evolution
Cash-out time : Up to 24 hours
Skol Casino

£1300 Welcome Bonus + 250 Bonus Spins

New Slot Site

WELCOME PACKAGE: 18+. New Players only. One bonus offer per player. Min deposit £10. Max bonus bet £5. Bonus funds must be used within 30 days & bonus spins within 10 days. Spins valid on Starburst only. Offer consists of: 1st dep: 100% up to £300 & 100 spins, 2nd dep: 75% up to £300 & 75 spins, 3rd dep: 50% up to £300 & 50 spins, 4th dep: 25% up to £300 & 25 spins, 5th dep: 100% up to £100. The 100 spins triggered on your 1st dep are credited at a rate of 25 spins per day over 4 days. Bonus spins winnings credited as bonus funds & capped at £50. For the 1st dep offer, this winning cap shall be applied to each set of 25 spins. Bonus funds separate to Cash funds and subject to 35x wagering. Terms apply.

Software : NetEnt, Microgaming, Big Time Gaming, Play n Go, Quickspin, Push Gaming, WMS, Yggdrasil, Thunderkick, Pragmatic Play
Cash-out time : Up To 24 Hours
Casushi Casino

100% Match Bonus + 50 Bonus Spins

Fun UK Slot Site

Full T&C apply. 18+. New players only. 100% bonus on first deposit up to £50 plus 50 Free spins. Free spins are playable on Starburst and will be credited in increments of 10 spins per day for 5 days following first deposit. Min. first deposit £20. Max bonus £50. Max bonus bet £5. Max bonus cash-out £500. Wagering requirement of 40x to cash out. Bonus expiry 30 days. Free spins expiry 2 days. Game restrictions apply.

Software : NetEnt, Microgaming, Big Time Gaming, Play n Go, Quickspin, Push Gaming, WMS, Yggdrasil, Thunderkick, Pragmatic Play
Cash-out time : 1-4 Days
21 Casino

121% Up To £300 Bonus

Plus Great Loyalty Rewards

18+. New players only. Min deposit £10. Bonus funds are 121% up to £300 and separate to Cash funds. 35x bonus wagering requirements apply. Only bonus funds count towards wagering requirement. £5 max. bet with bonus. Bonus funds must be used within 30 days, otherwise any unused shall be removed. Terms Apply.

Software : Big Time Gaming, Play n Go, Blueprint Gaming, NetEnt, Quickspin, ELK
Cash-out time : Under 24 hours
LeoVegas Casino

Unlock up to £100 Bonus + 20 Wager-Free Spins

King of Mobile Casinos

Full T&Cs apply. New reg only. Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 10 wager-free spins x10p to added to Book of Dead with each qualifying deposit, 3 day expiry.

Software : NetEnt, Microgaming, Big Time Gaming, Play n Go, Quickspin, Push Gaming, WMS, Yggdrasil, Thunderkick, Pragmatic Play
Cash-out time : 24 - 72 hours
Griffon Casino

200 Bonus Spins

Classy UK Casino

18+. Welcome bonus: new UK depositing players only. 200 spins require 3 deposits of min. ‎£20 each and are issued as follows: 50 on 1st deposit, 50 on 2nd deposit and 100 on 3rd deposit. Spins are issued on selected games. Winnings from spins are bonus with wagering requirements 35x. Spins expire after 24 hours. Bonus expires after 21 days. Play responsibly, T&Cs apply.

Software : NetEnt, Microgaming, Play n Go, Evolution, Blueprint, Quickspin, Amatic, iSoftbet, Red Tiger
Cash-out time : 1- 4 Days

Why Play Slot Machines Online?

Before you learn how slot machines work, it’s crucial to understand the value they can add to your online gambling escapades. Unlike card and table games, there are virtually no boundaries when it comes to creating slot machines. There aren’t particular rules the creator has to follow, nor is there a fixed format on online slots games.

Here are some of the most convincing reasons why you should dive headfirst into the slot machine section at online casinos:

  • Slot games are easy to pick up
  • Online slot games have an outstanding record of big wins
  • All the top casino software providers create video slots.

If that doesn’t cut it for you, let us explain in detail how each reason may work in your favour. You’ll later thank us for these slot tips and tricks!

They Are Easy to Pick Up

Those who play slot machine games know they aren’t rocket science. There are no particular rules you have to learn and follow, and the game throws you right into the gameplay. In fact, some of the best slot machines are nothing but a three-reel grid with the occasional bonus game. All you have to do is choose a slot machine and start spinning the reels. You can let the game do the rest while you sit back, relax, and watch the bonus symbols fill the screen!

Multiple-reel slot casino games are just as easy to play; they just boast a more significant number of reels. That’s because slots are games of chance, and there’s no strategy you need to implement to have a return on investment. So long as you land at least three matching symbols or more, the bag is yours.

Online Slot Games Have an Outstanding Record of Big Wins

A poker player from Finland holds the record for the largest online slot win of all time. By placing a £0.25 stake per spin, he managed to snag millions in the Mega Fortune online slot.

And this isn’t even the only slot machine success story that worldwide news channels have covered. Mega Moolah by Microgaming has issued multiple multi-million wins across online casinos.

High RTP (Return to Player) plays a huge role here. The Mega Fortune and the Mega Moolah slot have RTPs of 96.60% and 96.92% (a progressive contribution of 8.80% to the base game), respectively. The majority of players hit the jackpot at above 90% RTP slots, which is what makes slots so profitable. And let’s not forget bonus rounds! Some of the most notable slots wins in history have been a result of a free spins round.

So, if you want to test your luck and read your name in a news article, you should definitely play online slots.

The Top Casino Software Providers Create Video Slots

It’s plain and simple ━ the leading software creators produce high-quality online slots. And with recent technology developments, the majority have shifted their focus and put progressive slots in the limelight. There is a highly diverse panel of slot machines, all boasting distinct features. You can find wild symbols, scatter symbols, matching symbols, and more. Each of these features can be a great source of fun and simultaneously award you bonus rounds, free spins, and so on.

And while the online gambling industry is booming at the moment, no other type of online casino game will surpass the thousands of virtual slot machines. From pirate hunts to safari rides, players take on a journey every time they step into the world of online slots.

If you want to spin the reels at a top-paying slot game, we recommend checking out industry giants such as Microgaming and NetEnt. IGT and Big Time Gaming also has a pretty neat collection of slots, and Betsoft offers some of the most immersive 3D slots on the market.

How to Play Slots for Beginners: A Step-by-Step Guide

Mastering online slots is as easy as pie! You don’t have to be a slot machine expert in order to spin the reels. But just in case, we’ll navigate you through the process step by step.

Hopefully, you’ll only be a few spins away from earning that extra cash you long for.

So, let’s get down to business and learn some slot machine etiquette!

Step 1 – Choose a Slot

First thing’s first, you must choose your fighter, a.k.a. your slot machine. You can go over the current leading software developers and peek in their online slots inventory. To help you out, here are some of our favourites: IGT, Microgaming, NetEnt, the list goes on.

Then, you can choose between differently-themed slot machines. Many slots boast the evergreen fruit theme, one of the first types of themes to emerge in the industry. However, newer creators focus more on keeping up with the times. They offer highly engaging themes and will take you on unforgettable cruise ships and money heists!

You can also choose whether you want to play a classic three-reel slot or give progressive jackpots a shot. Progressives usually offer more variety in terms of bonus features, which is always a plus.

Step 2 – Check out the Paytable

A paytable is a list of the payouts of a slot machine. Here you’ll find all the symbols included in the gameplay, as well as how to form a winning combination. And although video slots are games of chance, you should still learn when to expect winning combinations.

You can do so by paying close attention to the paytable. The completely random number generators in slot machines will always have the upper hand, but at least you’ll be up-to-date with your bankroll.

Step 3 – Choose your Stake

To play slot machines, one must choose their stake. A stake is the amount of money you’re willing to bet on each spin. Every time you start a slot machine gameplay, the provider will let you choose your stake. This number can be anything between 0.20p and £100 or even more.

You should always consider your bankroll first and not overspend, as games of chances such as slot machines don’t promise wins. Their algorithm uses a random number generator to cause a bonus symbol to land on the reels spontaneously.

Step 4 – Hit Spin

So, you’ve picked out a slot machine, set your fixed stake, and now it’s time to spin the reels. This step is pretty self-explanatory. In most slot machines, you’ll see something akin to a handle on the side. All you have to do is press it, and the reels will start spinning. Once the game begins, it’s time to start earning from winning combinations!

Step 5 – Collect Winnings or Spin Again

Once you’ve played through your spins and maxed out your winnings, you can either choose to collect your money or keep spinning. The safest bet is to collect them and then start over with a more significant bankroll. Or you can just take whatever you get and go with it without risking your newly-acquired bankroll. The choice is yours!

Know the Symbols

Slots are a dime a dozen, and so are the types of slot machine symbols you can encounter on the reels. Each symbol feature is a story of its own and has different payouts. Some give out free spins bonuses, while others contribute to a progressive jackpot. We’ll now go through some slot tips and tricks to help you understand what each symbol represents and what it can add to your gameplay.


Wild symbols will match with any symbol on the grid to create a winning combination. For example, if you have the same regular symbol on reels 1 and 3, and a wild symbol lands in between, it’ll create a winning combo. The only instance when a wild cannot come in place of a missing matching symbol is when there is another type of bonus symbol in place.

There are various types of wild symbols one can encounter on the reels. The most widespread type is the expanding wild, which fills the reel from top to bottom. Sticky wilds are pretty cool as well, and they stay put in one place for the duration of multiple spins.

Sticky wilds can increase your chances of winning. Some sticky wilds will drop one place lower with each spin until they are off the grid. Finally, stacked wilds are similar to expanding ones. They simply stack on top of each other, much like in a game of Tetris.


Scatter symbols are pretty cool because you don’t have to get three matching ones next to another on one reel to win. To activate bonus rounds through scatter symbols, all you have to do is land at least three of them anywhere on the grid. The scatters will then reward you with free spins or something else. Scatters are featured in almost every progressive slot machine but aren’t often found in classic, three-reel online slots.

Sticky Symbols

We briefly mentioned the sticky symbols above. A sticky symbol will “stick” on your screen and will remain there for an extended period. Once more symbols that complement each other hit the reels, the sticky symbols will create a winning combo and disappear off the grid.

Much like any other type of high-paying symbol, the sticky symbols can activate bonus rounds and trigger free spins. And while not all machines offer them, they’re still a pretty frequent occurrence.

Stacked Symbols

If you’ve played Tetris before (which, let’s be honest, you have!), then you’ll immediately connect the dots. Stacked symbols land on top of each other, building a vertical block. To encounter stacked symbols in all their glory, you should play highly volatile slot machines. Usually, this symbol also boasts life-changing payouts due to the number of stacked symbols that land on the reels.

Does the Slot Theme Match your Interests?

Online slots games are created in a fusion of bonus games, creativity, and thrill, all in one. For every setting you can imagine, there’s probably a slot theme for it.

So, when choosing a slot machine to spin the reels at, let your imagination run wild. Don’t settle for those boring ol’ fruit themes! Instead, look up exciting, even branded themes to play around with.

An excellent example of a branded and highly entertaining slot machine is the Who Wants to Be a Millionaire Megaways slot. Las Vegas-themed slots are highly popular as well. These slots take you to the centre of Vegas, where you’ll play surrounded by flashy nightclubs and glimmering lights!

And there’s more where that came from! The number of slot machine themes is endless. Just make sure that whatever theme you pick spikes your interest and keeps you spinning the reels.

What Happens in the Bonus Round?

Bonus rounds function as mini-slots within slot machines. The provider creates a base game and layers it with bonus rounds to make it more interesting. Then, the bonus rounds are triggered by high-paying symbols such as scatters or wilds. They can award you free spins, progressive jackpots, instant cash prizes, and so on.

To find out how to activate bonus rounds, always check out the paytables at slot machines.

Free Spins

You may activate a free spins round when you trigger a certain high-paying symbol, such as a wild. The slot game will then reward you with a specific number of free spins. The exact amount is always displayed in the payouts section of the game.

If you trigger it, this incentive can work in your favour. Players can further maximize their earnings through the free spins and eventually profit from playing for fun! That’s because, with every extra spin, you get the chance to activate a more significant number of bonus features, which will lead to a higher payout.


Multipliers, like the name suggests, are supposed to multiply your winnings. The slot game sets the size of the multiplier, and it’s permanently fixed. However, that doesn’t mean you cannot implement smart slot machine strategies to unlock a multiplier.

After all, this bonus feature can double, triple, or even quadruple your winnings. Some multipliers will also increase your winnings 100x or 1000x your total stake. Players can activate multipliers through high-paying symbols like wilds, for example.

Some multipliers will increase your overall winnings, and others will only double your bet. Either way, it’s good to keep them in mind.

Special Features

“Special features” is a broad term. It can mean anything between a progressive jackpot and free spins bonus rounds. Some video slots offer features that players cannot find when they play slot machines from other creators.

Varying symbols like low and high-paying ones can take different shapes and forms based on the slot’s theme and the game payouts. When you play slot machines, you can discover the special features in the paytable, usually placed right above the grid.

Reel Modifiers

A reel modifier is anything that makes the reels look out of the ordinary. If a provider implements and installs a bonus round in a slot game, the special round will trigger the reels and modify them. The reels will then start to show new symbols such as scatters or wilds.

Software providers can also modify the reels by offering progressive jackpots to players. They can also award them with free spins, a feature that is triggered by high-paying symbols in a game.

To sum up, a reel modifier is anything that is not included in the base game of a slot.

What is the Slots RTP & Variance – How will this affect you?

While some players mistake RTP (Return to Player) and variance for the same thing, these two terms are vastly different. These two features of video slots dictate slot machine odds and payouts.

More specifically, the RTP denotes the average win rate percentage a player can expect, and the variance is how volatile the same slot is. We’ll now talk about why you should pay attention to these numbers and how they affect your payouts.

The average RTP of slot machines is between 95% and 97%. Newer slots have beat slot machines from a few years ago in this sector because older games used to boast RTPs lower than 95%. This is good news for you as a player because that means your chances of winning today are bigger than they were in the early stages of casino games.

When you want to play slot machines, always make sure to discover what the RTP is beforehand. We don’t recommend bothering with low-RTP games, as they don’t pay out well.

The variance or volatility level of an online nickel machine denotes the slot’s likelihood of hitting a winning combo. The variance also determines the average payout, which should concern any slot players. Today, a progressive machine can boast a low, medium, medium to high, or high volatility level. You should choose which one fits you best according to how much you’re willing to risk it.

If you opt for a low-volatility slot, you’ll decrease your chances of losing, but it will affect your chances of winning as well! Medium-volatility slots are fine, but they still don’t pay off big time. Finally, most slot players seek out medium to high volatility in slots, as it guarantees them bigger payouts and ROI (Return on Investment). Remember that these slots can also make you lose a significant amount of money, hence the variance factor.

Do Strategies Work While Playing Slot Machines in the UK?

UK players or not, there is little to no strategy involved in slot machines. The beauty of a slot machine lies in its simplicity; the less you use your brain, the more relaxed you become, and the more money you make.

The only strategy one can implement is to figure out the paytable. And even then, you cannot dictate how and where each symbol will land. After all, you cannot change the placement of symbols on the grid now, can you? It’s why we call them progressive machines games of chance!

Our Top Tips For Playing Online Slots in 2021

UK players, it’s your time to shine! After our thorough slotsplanation, it’s time to discuss slot tips and tricks for maximum payouts. When you play slot machines at online casinos, there are certain things you should do beforehand. These include practising on free slots, choosing a high RTP, understanding the paytable, and closely watching your bankroll. It’s also essential that you opt for a reputable UK online gaming hub, which we’ll talk about now.

1. Practice on Free Slots

Free slots (also called demo mode) are slots players can access and play free of charge. You’ll get a chance to take a glimpse into the game and get a feel for it. The paytable will be displayed, along with other crucial info such as maximum and minimum bet amounts.

You’ll find out all there is to know about the game’s bonus symbols, how they work, and how immersive the game actually is when put to the test. If it turns out that it’s not to your liking, you can always exit out and move onto a different slot.

2. Pick an Online Slot Machine with a High RTP

Low RTPs are detrimental to your earnings. Instead, look for online casinos that offer high-paying slots. That way, you don’t waste your time and money on near-to-nothing payouts. Anything from a 95% RTP and above is preferred, and there are also a few slots with a 99% RTP!

3. Understand the Paytable

The paytable is one of the essential components of a slot machine. Every slot you’ll encounter will have a paytable with different payout amounts, symbol features, and so on. Before you select a coin size, check out the paytable to determine whether it’d be worth placing a bet.

4. Look After Your Bankroll

There are several things to take into account when deciding your casino cash balance. If you’re a first-time bettor, you most likely don’t know how much to wager for the first time. And the answer is: if it’s your first time, go for penny slots! We highly recommend that you leave the higher denomination slots for later. We also called them dollar slots because they require you to bet more to win more.

Secondly, don’t spend money that you don’t have. It won’t matter how much fun you’re having spinning the reels when you have no more rent money left after the game. You can always save the second betting round for later.

We also suggest taking a breather between each spin. That way, you’re not letting yourself get carried away by placing one bet after another.

5. Choose a Trusted Slot Site to Play in the UK

There are a lot of rogue casinos creeping up on UK players, which is why you should be careful when choosing a site to play at. Make sure you take your pick from trusted sources i.e us at The Slot Buzz! You can take your pick from our list of best slot sites and know you are wagering in a safe place.

Before placing a bet at new venues, ensure that the casino is authorized by a licensing jurisdiction. You can proof check this info at the bottom of the casino front page. If the site lists the UK Gambling Commission as its legal body, for example, it means you can go ahead and place a bet (All casinos listed at The Slot Buzz are licensed and regulated from the UKGC).

Frequently Asked Questions

Where can I find the best UK slots?

British players can find the best slots at top UK casino sites such as PlayOJO, The Sun Vegas, and Genesis Casino.

Is video poker considered a slots game?

Gamblers play video poker on machines that look like most slots. Therefore, this type of poker is also called poker slots. However, poker is still a card game, and slots are games of chance, which is why we mustn’t mistake one for the other.

Are slot machines rigged?

In a way, yes. The casino designs each slot machine to pay out less than what is deposited into it. That way, the casino maintains a long-term profit from casino customers.

Are slots easy to play?

Yes, unlike many other casino games, slots don’t require you to become an expert to win big. In fact, they’re as straightforward as they get.

What kinds of bonuses can I encounter in slots?

UK players can run into slots that offer free spins rounds, progressive jackpots, and instant cash prizes.


Which WHG Brand has the Biggest Welcome Offer
17th January 2022
After 16 years in the industry, Max Wright, also the co-founder of several casino and poker
Best “book of” Slots – Our Picks
14th January 2022
The adventurer, Rich Wilde starts capturing the imagination of online and mobile casino players in 2012,
Are Newer Brands in 2022 Better than Established Ones?
14th January 2022
Going for one of the older online casinos seems like the safe option as they already
Recommended slot sites 18+, New Customers Only, Ts and Cs Apply
Fruit kings
Fun Casino
Casino Lab
Voodoo Dreams