The online casino market has been locally regulated in Ontario since April 2022. You can now fully legally play online slots and other popular casino games from the comfort of your own home or on the go.

This page guides you toward Ontario’s best legal online casinos based on game offering, safety, reputation, and, specifically, the Return To Player (RTP) percentages on offer.

You won’t find +50 casinos here but instead the very best. 

Online casino slots have been popular in Ontario since the 1990s when the internet first came to life, but it has exploded in popularity during the last 10 years.

Until recently, players in Ontario only had the option to play online casino games through offshore casinos, but since 2022, you can play them legally on locally licensed casinos where you are better protected.

Here are the 10 most popular slots in legal Ontario online casinos:

Click on the games link for a full review of each slot and for info on where to play the best-paying version of the game.

10. Big Bass Floats My Boat (Pragmatic Play)


Big Bass Floats My Boat RTPs:94.06% | 95.06% | 96.07%
Min bet: $0.20
Max bet: $250
Max win:5,000x
Bonus buy option:Yes
Main features:Money Symbols,  Free Spins
Release date:February 12, 2024

Fishing-themed slots are popular worldwide, including in Ontario, and Big Bass Floats My Boat is the first of a few in this Top 10 list.

The main features in this version are familiar, where the Fisherman symbol collects any money symbols (fish) in view.

3, 4, or 5 scatters trigger 10, 15, or 20 free spins played with a new multiplier collection mechanic.

9. 9 Masks of Fire (Games Global)


9 Masks of Fire RTPs:86.77% | 92.01% | 94.06% | 96.24%
Min bet:$0.20
Max bet:$60
Max win: 2,000x
Bonus buy option:No
Main features:Multipliers, Mask Scatter, Free Spins
Release date: October 16, 2019

9 Masks of Fire is as brilliant as it is simple. Land 9 golden masks on the reels to cash in the slots max win. However, the instant pay feature kicks in already when 3 golden masks are in view.

3 scatters trigger the free spins, where a bonus wheel decides the number of spins and starting multiplier value.

8. Wolf Gold (Pragmatic Play)


Wolf Gold RTPs:93.99% | 96.00%
Min bet:$0.25
Max bet:$125
Max win:1,000x
Bonus buy option:No
Main features:Fixed Jackpots, Free Spins, Respins
Release date:2017

Wolf Gold has been around for some time and can be considered an online slot classic.

It has aged gracefully and kept its popularity among online casino players in Ontario, as it is still one of the most played games in this province.

The slot carries three fixed jackpots, whereas the Mega option pays up to Wolf Gold’s max win of 1,000x the bet size used to spin.

3 scatters trigger 5 free spins, but it’s possible to retrigger these unlimited times.

On the other hand, six or money symbols trigger 3 respins, which reset each time a new money symbol lands on the reels.

7. Legacy of Dead (Play’n Go)

Legacy of Dead RTPs:84.55% | 87.56% | 91.51% | 94.51% | 96.58%
Min bet:$0.10
Max bet:$100
Max win:5,000x
Bonus buy option:No
Main feature:Free Spins
Release date:October 9, 2019

Legacy of Dead is the successful follow-up or sequel to Book of Dead, influenced by the popular land-based casino slot Book of Ra.

The features in Legacy of Dead have been kept to a minimum as it’s all about triggering the Free Spins to access the main action.

3 scatters trigger 8 free spins where one randomly selected symbol acts as an expanding wild.

In addition to this version, you can win more spins to your total and activate up to 9 characters to transform into expanding wilds during the same bonus game.

6. Fire Joker (Play’n Go)

 Online Casinos in Ontario

Fire Joker RTPs:87.24% | 91.23% | 94.23% | 96.15%
Min bet:$0.10
Max bet:$100
Max win:800x
Bonus buy option:No
Main feature:Respins, Wheel of Multipliers
Release date:2016

It’s time to return to basics in Fire Joker. This slot features a classic 3×3 grid with a fruit/joker theme.

Fire Joker can also be a good option for players looking to minimize risk, as the game uses a low to medium volatility setting. But while your entertainment time might be lengthened in this slot (compared to riskier games), the max win cap is lower, and you win small to medium-sized amounts more frequently.

Fill all 9 positions with the same symbol to access the Wheel of Multipliers for a chance at the most significant wins.

5. Big Bass Bonanza (Pragmatic Play)

 Online Casinos Ontario list

Big Bass Bonanza RTPs:94.02% | 95.67% | 96.71%
Min bet:$0.10
Max bet:$250
Max win:2,100x
Bonus buy option:No
Main features:Collecting phase, Multipliers, Free Spins
Release date:December 14, 2020

Big Bass Bonanza is the original version of the series that started the whole fishing theme mania in online slots.

Since then, game studio Reel Kingdom, in cooperation with Pragmatic Play, has milked the concept and released +10 game versions with various additions.

In Big Bass Bonanza, you want to land 3 or more scatters to trigger the free spins, where you may win extra modifiers before the bonus game begins.

For each 4 fisherman symbols collected in the free spins, you get +10 more spins plus a higher multiplier.

4. Big Bass Splash (Pragmatic Play)

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Big Bass Splash RTPs:94.60% | 95.67% | 96.71%
Min bet:$0.10
Max bet:$250
Max win:5,000x
Bonus buy option:No
Main features:Collecting phase, Multipliers, Free Spins
Release date:June 23, 2022

Ready for one more version of these fishing-themed slots? They are indeed popular among online casino players in Ontario as Big Bass Splash finds its way into the 4th position as one of the most popular slots.

You might feel déjà vu, but Big Bass Splash differs from the original Big Bass Bonanza slot.

This version offers a higher max win potential and some new extra modifiers in the free spins.

3. Sweet Bonanza (Pragmatic Play)

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Sweet Bonanza RTPs:95.50% | 96.60%
Min bet:$0.20
Max bet:$125
Max win:21,100x
Bonus buy option:Yes
Main feature:Scatter Pays, Mystery Multiplier, Free Spins
Release date:June 27, 2019

From one bonanza to another, this is no temporary trendy slot as Sweet Bonanza is one of the most played slots in the world in recent years and the third most popular online casino slot in Ontario.

The friendly graphics, entertaining features, and high maximum win potential made this candy-themed slot a fan favorite in Ontario and other places.

Cascading wins and the possibility of landing a mystery multiplier with up to x100 value keep the base game exciting, while four lollipop symbols trigger the sought-after free spins.

2. Book of Dead (Play’n Go)

book-of-dead-ontario online casino

Book of Dead RTPs:84.18% | 87.25% | 91.25% | 94.25% | 96.21%
Min bet:$0.01
Max bet:$50
Max win:5,000x
Bonus buy option:No
Main feature:Free Spins with expanding wild
Release date:2016

Numerous Egyptian-themed online slots have an expanding wild symbol feature in the free spins, but none are as popular as Book of Dead.

Book of Dead is constantly promoted in legal Ontario online casinos in the most popular game section year after year.

The setup is simple. Land 3 or more scatters to trigger 10 free spins where one symbol is randomly chosen to become the expanding wild.

1. Gates of Olympus (Pragmatic Play)


Gates of Olympus RTPs:94.50% | 95.50% | 96.50%
Min bet:$0.20
Max bet:$100
Max win:5,000x
Bonus buy option:Yes
Main feature:Scatter Pays, Multipliers, Free Spins
Release date:February 13, 2021

The most popular online casino slot in Ontario is Gates of Olympus.

Land 8 or more matching symbols anywhere on the reels to create a win. The multipliers can help you reach the biggest wins in the base game and free spins.

4 or more scatters trigger the bonus game, but will you play with the Ante Bet to double your chances or go with the flow?

New slots in Ontario Online Casinos 2024

The most popular game studios with a legal Ontario license constantly release new slots.

We can expect to find more than 50 new games monthly of various quality.

It can be hard to keep up with this constant flow of new games, so to simplify things for you, we have tested and reviewed each new slot available in Ontario for you.

Top 3 licensed Online Casinos in Ontario

There are currently +60 Ontario licensed casino sites available, but how can you decide where to play with so many options to choose between?

Here, we have listed our Top 3 highly rated Ontario-licensed online casinos we recommend.

LeoVegas – Best Online Ontario Casino for High Variance Slots & Live Casino


Ontario license: Yes
Min deposit:$10
Payout time:1-4 days
Transaction fees:No fees

LeoVegas is the best option for Ontario players looking to play slots from Hacksaw Gaming, Nolimit City, Push Gaming, Quickspin, Relax Gaming, and Thunderkick, as these are all offered with great RTP versions instead of one of the lower-paying versions. You also find exclusive slots in this casino and one of the most extensive ranges of Live Casino games. 

Play at LeoVegas

Wheelz – Best Online Ontario Casino for Red Tiger slots


Ontario license:Yes
Min deposit:$10
Payout time:1-5 days
Transaction fees:No fees

If David “The Hoff” Hasselhoff isn’t reason enough to play here, then you can rely on Wheelz‘s impressive game portfolio. This casino offers all the popular slots. NetEnt and Red Tiger slots are especially interesting here, as most of these are offered in the highest RTP versions. 

Play at Wheelz

Spinaway – Best Online Ontario Casino for NetEnt slots


Ontario license:Yes
Min deposit:$20
Payout time:1-5 days
Transaction fees:No fees

If you want to play Gonzo’s Quest and other NetEnt slots, Spinaway is your best choice, as most of these games are offered with the highest RTP. They also have a massive selection of games and a very user-friendly design. 

Play at Spinaway

Play Ontario Online Casino Slots with the highest RTP

The CasinoWizard is a true fan of slots and loves playing them. However, what he doesn’t enjoy is low-paying versions of games.

Did you know that most online slots are offered with various RTP configurations?

This means that while one Ontario-licensed casino might offer you the best-paying version of Book of Dead, another might provide you with a much poorer choice with a low RTP to increase their win margins further.

Are you surprised by this? No worries. Most players don’t know about this yet, but now you do. The best part is that CasinoWizard is here to exclusively guide you to the highest RTP versions of all games.

Let’s use Book of Dead as an example.


Book of Dead is available in five payout versions averaging 84.18%, 87.25%, 91.25%, 94.25, or 96.21% RTP.

All Ontario-licensed online casinos can choose whichever version they want to offer its players.

So what do all these different percentages really mean?

The following table shows how many spins you will theoretically get to play before your money runs out, based on a starting balance of €/£/$/100 and a stake of $/1 per spin.

Book of Dead RTP Number of spins
96.21%2,612 spins
94.25%1,721 spins
91.25%1,131 spins
87.25%776 spins
84.18%625 spins

As you can see, the differences between the RTP versions can be huge, and unfortunately, this isn’t common knowledge yet among casino players in Ontario.

But do not worry, as CasinoWizard has done extensive research for you and found all the best-paying versions of slots.

Check our slot reviews, and you will find info on where to play on the highest RTP version. Our sophisticated tools automatically update the RTP tables to show the best options whenever casinos change their RTP offering.

Online casinos taxes in Ontario

Paying taxes on online casino winnings is not something that anyone would be fond of.

The good news is that while Ontario-licensed online casinos are obliged to pay taxes on their profits, we players don’t pay anything on our winnings.

All winnings are, therefore, tax-free when playing on Ontario-licensed online casinos, so everything you win is yours to keep, and you don’t need to worry about the tax department taking a big chunk out of your winnings.

However, you need to be a minimum of 19 years old to be able to register and play.


Slots are the most popular casino games in Ontario, but there is a big selection of other types of games that you can play as well.

Some of the most popular casino games in Ontario online casinos include:

  • Live Casino – Nowadays, you don’t need to travel physically to your local brick-and-mortar casino to play popular table games against real dealers, as these are also available online. Through advanced technologies, you transform your living room into a casino setting through your preferred device and play games like Roulette, Black Jack, Baccarat, and more with other players.
  • Game Shows – Other popular casino games in Ontario-licensed online casinos include game shows, where a game host runs the games. Some of the most played ones include Crazy Time, Lightning Roulette, Crazy Pachinko, Travel Fever, Speed Super Sic Bo, and many more.
  • Table Games – Traditional table games like Roulette, Black Jack, and Baccarat can also be played against a Random Number Generator (RNG) game where you don’t share the table with other players without a real live dealer.

There is an endless option of high-quality live casino games where you play against real dealers, and some of Ontario players’ favorites include:

  • XXXtreme Lightning Roulette
  • Sweet Bonanza Candyland
  • Monopoly Live
  • Crazy Coin Flip
  • Immersive Roulette
  • All Bets Blackjack
  • Mega Roulette
  • Boom City
  • Mega Ball
  • Peek Baccarat
  • Adventures Beyond Wonderland
  • Mega Wheel
  • Extra Chilli Epic Spins

These can all be found on the best Ontario online casinos.

Ontario Live Casino providers:

A few game studios specialize in creating the best possible live casino experience online that is achievable today.

  • Evolution Gaming – Evolution Gaming is the world’s biggest publicly listed online casino game studio. For +10 years, they have been leading the live casino niche forward by creating outstanding live casino games for players worldwide. Nowadays, their big focus is on the North American market, where they are the leader in the USA and Ontario-regulated markets. Some of their best live casino games include Lightning Roulette, different versions of Blackjack, Crazy Time, and many more.
  • Pragmatic Play – Many players associate Pragmatic Play with superb slots like Sweet Bonanza, Gates of Olympus, Big Bass Bonanza, and many more. However, they are also a leading provider of live casino games. Their most-played live casino games include Sweet Bonanza Candyland, Boom City, Mega Roulette, Mega Wheel, and more. Pragmatic Play is a privately owned company, so their figures aren’t as public as Evolution Gamings. However, many industry experts consider PP to be the world’s biggest overall game studio provider for online casinos.
  • Playtech – Playtech is another iGaming veteran creating all sorts of casino games for online casinos since 1999 and is a stock-listed company. They are mainly known for specializing in releasing branded slots like Robocop, American Dad, Dirty Dancing, Superman, Ace Ventura, Gladiator, Batman, Top Gun, and other high-profile titles over the years. Playtech is also a big provider of live casino games. Their prominent live casino games include Mega Fire Blaze Roulette, Buffalo Blitz, Grand Baccarat, and All Bets Blackjack.

New Types of Casino Games:


We can’t list the most popular casino games in Ontario Online Casinos without mentioning Crash Games.

These types of games have taken the online gambling world by surprise and quickly gained over 50 million unique players worldwide.

The simplicity and quick-paced experience attract players to try Crash Games as you decide your bet size and then need to cash out before the round ends.

Some popular Crash Game titles available in Ontario-licensed casinos are:

  • Big Bass Crash (Pragmatic Play)
  • Spaceman (Pragmatic Play)
  • Astronaut (Red Tiger)

Slots with the highest RTPs in Ontario Online Casinos

If you are looking for Ontario online casino slots with the highest long-term return (RTP), look no further; we have this information ready for you.

These are the Top 10 slots with the highest average RTPs found in Ontario online casinos:

Book of 99 99.00%
Mega Joker 99.00%
Marching Legions98.12%
1429 Uncharted Seas98.00%
Money Cart 298.00%
Rainbow Riches Pick’n’mix98.00%
Blood Suckers97.99%
Blood Suckers Megaways 97.66%
Big Bad Wolf 97.35%

How to play online casinos in Ontario

If you are new to online casinos in Ontario, knowing where to start and how to go about all the steps when playing casinos might be overwhelming.

We have made a simple breakdown for you in case you feel you are in this situation but would like to try online casinos and see if it’s something you would enjoy.

But before we start, the most important thing when playing casinos online is always to set personal boundaries and limits. Play only to have fun and never chase losses or gamble for more money than you can afford to lose. All casino games are created so that the house (casino) always has the mathematical advantage and is the only sure winner in the long term. However, you can still get lucky and win occasionally, as otherwise, no one would play.

Follow these steps to play real-money online casino games:

  1. Choose a top-rated Ontario-licensed online casino or a slot of your liking by visiting one of the game reviews here on, where you find casinos that offer the best RTP version of the game.
  2. Click on “Register” or “Sign up”.
  3. Add the required information, including name, email, address, and more.
  4. Once you have registered your account, click the “deposit” or “banking” option. Here, you choose your preferred payment method and deposit the amount you like.
  5. If the casino offers a welcome bonus to new players, you usually activate the bonus with your first deposit.
  6. Choose the game of your choice and start playing. 

Can you trust Ontario-licensed Online Casinos?


The short and simple answer is yes, you can trust online casinos with an Ontario license.

All online casinos must go through a costly and time-consuming license process with iGaming Ontario (iGO), which works with the Government of Ontario and the Alcohol and Gaming Commission of Ontario (AGCO), before a license is approved and handed to them.

Once an online casino has been granted an Ontario gambling license, it needs to follow a strict set of rules and laws that are in place to protect players from harmful gambling activities and to avoid any illegal activities like money laundering and more.

All games offered in Ontario online casinos have been tested by licensed and approved third-party companies and agencies before being provided to the general public.

All slot games use a Random Number Generator (RNG) algorithm, which ensures that all games are fair and correct.

If an Ontario-licensed online casino doesn’t follow the rules in place, they can get hit by heavy fines or lose their gambling license. You can contact the iGaming Ontario player support if you have something to report or experience a dispute with a licensed casino in Ontario.

Playing on offshore online casinos licensed elsewhere doesn’t offer the same protection and help if needed.

Ontario Online Casino Bonuses

Casino bonuses are allowed and available in Ontario online casinos.

These casino bonuses can often consist of the following:

  • Welcome Bonus
  • Loyalty Program
  • Cashback Bonuses
  • VIP Bonuses and more

Most Ontario-licensed online casinos offer all new players a welcome bonus, and thereafter, any other future bonuses or loyalty programs are based on players’ activity.

You can always contact the online casinos’ support department and enquire about more bonuses or other perks when playing there.

The Regulated Online Casino Market in Ontario

Before April 2022, players in Ontario could only play online casino games at offshore licensed casinos, as nothing else was available.

However, in 2021, the government of Ontario set up iGaming Ontario to prepare for a regulated online casino market in which only locally licensed online casinos would be allowed to offer their services to players based within the province.

In 2024, more than 60 online casinos were granted an Ontario gambling license, creating a healthy and exciting offering to the Ontario population interested in online casino games.

Ontario-licensed casino operators pay taxes to the province, but all winnings are tax-free for players playing on Ontario-licensed online casinos.

All casinos must use geolocation tracking to ensure that Ontario players see a dedicated version of the site created for them.

Best Jackpots Slots Found in Ontario Online Casinos

Players in Ontario looking for big win potential can find a wide selection of jackpot slots at Ontario-licensed online casinos.

Some casinos offer exclusive jackpots while others offer you a chance to try to win the Mega jackpots at games like Mega Moolah, WowPot jackpots, Dream Drop jackpots, and many more.

Just keep in mind that jackpot slots offer a lower RTP for regular wins, as a big chunk is dedicated to the progressive jackpots.

On the other hand, if you decide to play a jackpot slot, then the main jackpots are what you are aiming for. The chances of winning a million jackpot are slim to none, but they happen occasionally. 

Future of Online Casinos in Ontario

The future for online casinos in Ontario looks bright as the locally regulated market is considered “attractive” for operators and safe for players.

Also, the regulator hasn’t been too strict with rules regarding game offerings, bonuses, wagering limits, and more, as seen in European regulated markets like Germany, the Netherlands, and Sweden, where the so-called “black market” (offshore-licensed) brands have gained big market shares as players seek more interesting offerings in those countries due to strict regulations.

We can only hope that iGaming Ontario and the government of Ontario continue keeping the same approach and strategies to keep the regulated market exciting and safe for players and operators alike in the coming years.

Frequently Asked Questions

Is it safe to play slots at Ontario-licensed online casinos?

Yes, all Ontario-licensed online casinos follow strict rules set by iGaming Ontario that protect players from harmful gambling activities. Licensed third-party agencies have tested and approved all casino games and slots on offer to ensure a fair outcome using Random Number Generator (RNG) algorithms.

Is it illegal to play online casinos on offshore casinos in Ontario?

It is not illegal for Ontario-based players to play on offshore online casinos, but players might have difficulties resolving disputes. 

Who do I contact if I have any issues with Ontario online casinos?

iGaming Ontario, through, helps players resolve disputes or complaints against Ontario-licensed online casinos.

How many online casinos have been granted an Ontario gambling license?

By 2024, more than 60 online casinos will be granted an Ontario gambling license. These include some of the most famous operators in the world.

Can I play online Live Casino games in Ontario?

Yes, Ontario-licensed online casinos offer players a vast selection of live casino games like Roulette, Blackjack, Baccarat, and game shows where you play against real dealers from the comfort of your home.

Where can you find the highest RTP versions of slots in Ontario? will exclusively guide you toward the best-paying versions of all slots. Check out their slot reviews to find the requested info and to avoid giving away extra unnecessary margins to the casinos.