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Play Slot Games at with Bonus Spins

A warm welcome from our team at Slotzo! This slot site is passionate about bringing players the best online casino entertainment, from slots classics casinos games to live casinos games, including blackjack, roulette, baccarat and game shows. The experience is everything, and Slotzo is committed to making sure there’s something in their online casino for every player and providing an immersive, second-to-none online gambling experience that leaves a lasting impression on our players.

Slotzo knows all too well that technology is advancing at a rapid rate, and we make sure we are at the forefront of the industry when it comes to providing the most cutting-edge slot games and live casino games available so that we can add more excitement to your slot experience.

Guide to Online Slots Games

It’s so easy to play slot games online! Playing slot games online can be even easier than playing slots at a brick and mortar casino, as you can access online slot games pretty much wherever you are, whenever you feel like it. Furthermore, most slot games are optimised to play on desktop, laptops, tablets and mobile, so you can play on any device that is easy for you, making playing slots extremely simple!

One reason players love playing slots is that you don’t need any practise or employ any advanced gambling strategy to have fun and be in with the chance to win money with slots. A beginner has just as much of a chance of winning as a player who has played the same slot game hundreds of times as the outcome of the spin of a slot is entirely random, making slots ideal for just about every player.

Slot Mechanics Explained: the RTP, RNG and Paylines

Playing slots is super simple, but some beginners get a little bogged down with some of the terms and jargon used in slots like RTP, RGN and Paylines. But before you slowly back away, knowing what these terms mean will help you to play online slots and understand how they work! To get the hang of them, you can also try some demo slots.

Random Number Generator

RGN stands for a random number generator, and it describes how a online slots game works to generate the symbols you see when you spin the reels. As the name tells you, the numbers are generated by a digitalised device at random, which means which symbols will appear on the reels are entirely random and dictated by the random number generator, making them unpredictable. By using RGN, slots are fair, and players can rest assured that slot games aren’t fixed!

Return to Player

Another acronym that players are often unsure about is RTP, but understanding it will help you know how you can win whilst playing free slot machines online. RTP stands for return to player, and it describes the theoretical percentage of a slot game paying out following a certain number of spins over the course of an extended period of time.

An RTP is displayed as a percentage, and essentially, the higher the percentage, the better, as this means that theoretically, the slot game will pay out more often than slots with a lower percentage. All RTP percentages are generally displayed in the game descriptions, so you can use your judgement to determine which games are more worth your while!


A payline can also be known as a betting line, and they are a combination of symbols that result in a winning combo in a slot game – so you’ll soon find out what a payline is while you play! Paylines can come in a variety of shapes and sizes depending but on average, slots have 25 or so paylines, but some games can have hundreds of paylines. Some are fixed, which means that all will be active during the gameplay, but for others, you have the options to choose which paylines you wish to play on.

Slots with Jackpots

For a lot of players, it is a great part of the experience when playing slots to have the chance to win life-changing sums of money, and the best possibility to do this is to play online jackpot slots. The good news is they are in abundance, and there are so many different kinds of jackpots slots available to play, including games with local jackpots and progressive jackpots.

Progressive vs Local Jackpots

Slots can have different kinds of jackpots up for grabs for lucky online slots players, including progressive jackpots and local jackpots. What’s the difference? Let’s start with local jackpots. Local jackpots are localised either to a specific casino, and the games are interlinked to crease a jackpot which is the sum of all the cash prizes from the individual slots. These are great if you’re looking for smaller jackpots with a more regular win rate, but if you’re looking for bigger prizes, progressive jackpots are the way to go.

Progressive jackpots can yield huge prizes, and the thrill of knowing you could be in with a chance of winning mega jackpots can make the experience extremely fun. With progressive jackpots, they start out with a base value, which is the starting point for the jackpot, which is progressively built upon as players place their bets.

This base value is the lowest the jackpot will go, and it is usually still a generous jackpot figure! Each time a player places a bet on the slot linked to a progressive jackpot, a small amount of this wager is then pooled into this progressive jackpot, meaning the jackpot is progressively grown from the base value and will continue to build until one lucky player hits the jackpot.

This, as you can imagine, makes progressive slots extremely interesting to players! Once a online slots player has won the progressive jackpot, it will revert to the base value jackpot to be built up again.

Best Online Slot Games to Play in 2021

With Slotzo, you’ll be completely spoilt for choice as the online casino has over 550 incredible free slot machines online for players to enjoy, and there is an array of different types of popular online slots to choose from with a mind-boggling range of themes! Their extensive portfolio includes progressive jackpot games, classic slot games, and video slot games with astounding graphics and features that will keep you entertained for hours! Slotzo can guarantee you an immersive experience filled with action-packed slot games that have won over players and become firm favourites.

Slotzo does anything but stand still; we are constantly adding to our already impressive slot portfolio of 550 titles, adding games that are new to the market every week – so keep your eyes peeled for the new releases! To keep in the know-how about new releases, when you sign up you can also opt to receive emails from Slotzo, who will give you updates on new best free slot machines that have just landed and new planned innovative online slot games titles to the online casino. Some of their top slot games include:

Starburst Slot

Starburst is a five-reel slot game bursting with mouth-watering features, bonus rounds, lucrative 10 paylines, and plenty of opportunities to win huge prizes. The slot is mesmerising, coated in eye-catching colours and exceptional graphics, and is most loved for its brilliant “win both ways” feature that gives you the chance to double your chances of winning.

Thunderstruck 2

A fascinating five-reel video slot game themed around Thor who you will meet as the game’s Wild symbol. The wild symbol in Thunderstruck 2 game, as in most slot games, will act as a substitute for all other symbols apart from the scatter symbols and what’s more, your winnings will also be doubled, meaning Thor will be worth 6 x your bet during a bonus spin!

Golden Yak

Do you love animal-themed slot games? The Golden Yak features, as you might have guessed, a stunning beast roaming around in nature, but it’s anything but tranquil. The majestic Golden Yak will transport you to the golden hour where you’ll be in with the chance of winning stacks of cash prizes, with 1,024 ways to win with this stunning slot game. The game is crammed with exciting features, including extra spins and bonus rounds where the golden yak will be the game’s multiplying Wild which can go up to 100 x your bet.

Other regal animals also join the golden beast on the reels, including horses, jaguars, eagles, and warriors. This slot was developed by a group of mathematicians back in 2004 under the developer name Lightning Box, but you don’t have to be a mathematical whizz kid to enjoy their mathematics-focused slot games; they are easy to play and can be very lucrative.

Something for Everyone

The bottom line for slots at Slotzo is that there is something for everyone, making them a genuinely premium casino. So no matter what your interests are, whether you’re into Norse Gods, Egyptian princesses, vampires or intergalactic adventures, you can head to the exciting world of mobile slot games at Slotzo with a few clicks.

The Developers of our Slot Machines

Slotzo knows you deserve the best. When it comes to slot games, Slotzo wants free casino slot games titles from the industry’s innovators, including Microgaming, NetEnt and Yggdrasil, and many more industry-leading developers. They create some of the world’s most incredible slots, are the genius behind some of the player’s most loved games, and have been innovators and pioneers of the gambling industry right from the start.

Slots are more interesting when they tell a story. The developers behind the free slot games on Slotzo feature exceptional graphics that present the narrative behind themed slot games in brilliant detail, making the slot games even more immersive than ever before.

Yggdrasil, for example, is one innovative developer that creates some of the free slot machines available on Slotzo. They have been paving the way in the industry since their inception. They have made a significant impression on online casinos and players alike with their unique slot games, including Vikings Go Berserk and Vikings Go Wild, available to play on Slotzo.

Casino Slots History

To understand how slots work and how to win at slot games, it’s good to know a bit of history around slots and bust some myths around them! One common misconception about slots is that they have a clockwork mechanism and that they can be manipulated. This hasn’t been the case since the 1960s when casino operators winded up slots as they didn’t even use electricity. These slots were well known for being able to be manipulated.

Still, from the 1960s onwards, slot machines benefitted from advancements in electro mechanical technology and were upgraded to use electricity to run, which made them less easy to be manipulated by players. Advances in technology thankfully continued, and as we waved goodbye to the 80s, we welcomed intelligent technologies in 1990, which made use of cutting edge (at the time!) video technology and computerised coding to make slot machines run.

It didn’t take long for players to try and hack into these new video slots, and one infamous programme hacker who used Blackfoot slot code to manipulate slot machines was Ronald Dale Harris, who used his skills as a programmer to hack the system so he could predict the outcome of the slot machines accurately.

Harris was of course, caught in the act and was subsequently arrested, but this also meant casinos were wise to this backfoot coding technique and further advancements in technology enabling casinos to change to a central server meant that casino slot machines were always fair for all players as they were unable to be manipulated!

How to win at Online Slots using a Strategy

Now you’re clued-up on the rich and exciting history of slots; I’m sure you’re more than interested to find out how to win when you play free slots online slots, am I right? Well then, let’s take a look at some top tips from expert online casino games players on how they are victorious on the reels.

To increase a chance, you could try placing higher bets which will maximise your winnings when they come around. However, because of how slot machines work, it’s impossible to accurately predict when you will win or how to influence the slot machine as a digitalised random number generator controls them.

So, one way to ensure you cash in on when you do win real money is to play higher denominations; after all, the higher your bet, the higher your payout will be if you do win, meaning you can capitalise on your win. Of course, this comes with a caveat of – bet in accordance with your own budget and only bet what your bankroll will allow. This way, any winnings will be a bonus, and you’ll still be playing within budget.

Another brilliant piece of advice from experienced slot players is always to play free online slots that you enjoy and find easy to play; that way, you’ll always have fun even when you don’t win – which will make you a real winner! Mindset is very important, and when playing slots, it’s good to remember that you’re playing for entertainment and that any winnings are a bonus.

It’s also important to know that just because a slot is simple doesn’t mean you can win real money, and just because a slot is complicated with an array of features doesn’t necessarily mean you have a better chance of winning. Check out the game description for the RTP percentage before you play a slot game, as this will give you an idea of the theoretical payout rate to help you decide which slot to play.

Play Top Slots Games with Welcome Bonus

Slotzo is a premium online casino that never does things by halves – they like to do something big and don’t hold back when it comes to slot game bonuses! Slotzo is always innovating to find new ways to satisfy their players and feature an abundance of brilliant promotions and amazing prizes for new players as well as current customers who have a membership – with plenty of seasonal bonuses and special bonus events throughout the year, rewarding you when you least expect it!

Premium Club

Their generous Premium Club players with bonuses which include birthday bonuses, Slotzo make it worth players’ while to stay and play with Slotzo. It pays for players to be in the Slotzo as every time Premium Club members play, they will rack up reward points which can then be converted into bonus cash, and they climb the Premium Club ladder from a new member to Bronze, Silver, Gold, Platinum, Premium, right the way up to Prestige level, where the rewards are astronomical.

Welcome Bonus Ireland

Signing up to a new casino would be no fun without any special treats, would it? So to welcome you as a new player, Slotzo offers a very generous extra spins across your first two deposits on this online casinos site.

Bonus Spins on your first deposit

With these lucrative bonus spins you can play top rated slots like the top-rated Book of Dead slot by slots developer Play’n GO. This Egyptian themed adventure is an exhilarating five-reel slot game that bursts with delectable features.

Bonus Spins on your second deposit

And with your second deposit, look forward to bonus spins on the crowd favourite Starburst, a magical slot by legendary game developer NetEnt.

Slotzo can also offer you a match bonus as part of our welcome bonus, all you have to do is follow the simple sign-up steps and you can be spinning the reels with both bonus spins and a deposit match bonus. So, what are you waiting for? Get spinning by sign up to Slotzo online Canadian casinos today!

Always Gamble Responsibly

Gambling is best enjoyed responsibly, and the best way to do this is to be in the right headspace when you’re playing. Above all, the most important thing is for you to have fun when you’re gambling, but if you start to show signs of feeling frustrated, angry or stressed when you lose, it could be time to take a break.

Gambling is all about enjoying the experience within your own limits, so take regular intervals so you aren’t playing for an extended period of time and stick within your bankroll so that you never spend more than you can afford to lose while playing. Happy spinning!

On the last note, if slots are not your game of choice, why not check out some of our card games and live casino options instead?