Best Slot Sites in 2023: TOP Online Slots for Free Spins Bonuses, High Payouts, & More

Looking for the best slots sites in the USA but having a hard time deciding which one to use? We know the feeling.


Tired of playing the same old online slots with boring bonus rounds that leave you disappointed even after a “mega” win? We know the feeling.

Consider yourself lucky today because we’ve got exciting news: after doing extensive research, our team of expert players found the best slots sites online, offering users an amazing variety of games with high RTPs.

While Ignition takes the #1 spot, there are many others that we would like to share with you today.

So, without further ado, let’s get started.

Best Slots Sites in 2023 

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1. Ignition Casino – Best Slots Site Online Overall



  • Slot games: 60
  • Bonus: Up to $3,000
  • Payout time: less than 24 hours
  • Year-round poker tournaments
  • Excellent mobile compatibility
  • Higher bonus for crypto players


  • No e-wallet banking methods
  • Fees on credit card payments

Although Ignition does not have the longest history in the online gambling industry, it still manages to be one of the most popular casinos out there. Let’s take a closer look at what makes it our top pick for today.

Game Selection: 4.95/5 

When thinking about slot games, Ignition might not be the first brand that comes to mind – after all, there are only about 60 slot games available here. 

However, the reason why Ignition is favored by many slot lovers is that all the games here are individually hand-picked by the Ignition team, which means the highest quality. All of these slots for real money are from leading providers in the industry, which is another huge advantage.

Bonuses & Rewards: 4.9/5

Where Ignition shines the most is its bonuses and promotions. When making your first crypto deposit, you will be able to receive a 150% match to deposits up to $1,500. If you are paying in fiat money, the bonus is a bit lower – a 100% match for deposits up to $1,000.

The wagering requirement for the Ignition welcome bonuses is just 25x, which is very low and competitive.

Mobile Compatibility: 4.95/5 

Ignition’s mobile compatibility is top-notch. While not available as an app for download, the website is perfectly optimized for mobile use. It is well-designed and user-friendly, with absolutely no lag.

All of their desktop games are available on their mobile website, with a few changes on their lobby to facilitate easier mobile navigation. On the whole, it has a great mobile gaming experience.

Banking: 4.85/5 

Banking with Ignition Casino is easy as they offer Visa, Mastercard, and Bitcoin, among a few others; however, what we find a little discouraging is the lack of an e-wallet option. 

The best thing about this slot casino is that withdrawals are very fast and usually take less than 24 hours.

Misc: 4.9/5 

Ignition Casino may not have as many slots for real money to offer as some other casinos that we have discussed, but they have earned a place on this list by being a fantastic all-around casino with a lot to offer in spite of its size.

They have excellent 24/7 customer support, which you can access via phone, email, or live chat.

>> Get bonus up to $3,000 [Ignition] << 

2. BitStarz – Best Slots Online for Crypto Players



  • Slot games: 1,000+
  • Bonus: Up 5 BTC + 180 free spins
  • Payout time: Instant
  • Over 4,000 casino games
  • Easy-to-use website


  • Limited banking options
  • Cluttered homepage

Are you after the best slots real money crypto gaming experience? Then you should check out what BitStarz has in store for you. Being established in 2014, BitStarz is one of the best crypto casino sites available right now.

Game Selection: 4.9/5

We were very impressed with the game library available at BitStarz. There are over 4,000 casino games available for the users of BitStarz, but what makes it truly special is that all of these games are from leading providers in the industry.

You can also find some exclusive BitStarz titles in its library, which is very exciting. While this casino mainly focuses on the best online real money slots, there’s also much more that you can find here.

Bonuses & Rewards: 4.85/5

Who doesn’t love bonuses, right? Well, we know we do!

BitStarz welcomes its new players with an exciting welcome package of up to 5 BTC plus an additional 180 free spins for slot players. And it doesn’t stop there!

Existing players can take advantage of several exciting tournaments running at BitStarz. They offer exciting prizes and endless fun.

Mobile Compatibility: 4.8/5

BitStarz might not have a dedicated mobile app, but there really is no need for it to have one. Why? Well, it’s quite simple – the website is perfectly compatible with mobile devices.

All you have to do is to visit their website using your smartphone, and you are good to go. All the games are available for on-the-go gaming, and they promise hours of fun and entertainment.

Banking: 4.75/5

If you are into crypto gambling, it is very hard to find anything better than BitStarz. It supports all the major digital coins, including Bitcoin, Ethereum, and Litecoin, among others.

All the payouts are processed instantly here, and there are no fees to worry about. However, one thing that we would like to see improve is the availability of fiat banking options.

Misc: 4.85/5

All in all, BitStarz is a great online casino with a lot to offer, and it is especially good for those who want to play the best real money slots online.

Apart from the best casino slot games, we enjoyed the variety of table games here, too. And if you ever face any kind of an issue, customer service is always there to help you out.

>> Get your welcome package of up to 5 BTC [BitStarz] <<

3. Slots Empire – Top Bonuses of All the Best Online Slots Sites



  • Slot games: 200+
  • Bonus: 245% deposit match + 55 FS
  • Payout time: less than 24 hours
  • 8 payment options supported
  • Great graphics
  • Variety of progressive jackpot slots


  • $150 minimum withdrawals
  • Cluttered homepage

One of the most popular slot sites available today is Slots Empire. This online casino is very well-known around the world for a number of reasons. It has very generous bonuses, a good variety of games, and an amazing gaming experience.

Let’s see why it’s one of the best gambling sites for slots.

Game Selection: 4.8/5 

Slots Empire is not all about beautiful graphics and a crystal-clear user interface. They also have a decent number of casino games to offer. With over 200 different online slot machines, Slots Empire is a dream for anyone looking for online casinos with a snazzy slot offering. 

Bonuses & Rewards: 4.7/5 

If you love bonuses and rewardswho doesn’t, right? – then Slots Empire might be a perfect choice for you. This online casino has some of the most generous bonuses and promotions in the industry, ensuring that anyone can find something of their liking.

Whether you are a new player or have been with Slots Empire for some time, this online casino will have something for you. 

If you are just getting started, you should definitely take advantage of the Slots Empire welcome bonus. Once activated, this promotion will reward you with a 245% match bonus plus additional 55 free spins on a famous game – Caesar’s Empire. 

Mobile Compatibility: 4.8/5 

We believe Slots Empire has one of the best mobile compatibility in the industry today. The mobile version of the website is very clean and easy to use, ensuring the best gaming experience even on the smallest smartphone screens.

The mobile version has all of the features of the desktop site; it loads very fast and allows you to do anything you would do with the desktop version – which is amazing.

In short, Slots Empire offers superb mobile gaming that is hard to beat.

Banking: 4.7/5 

Slots Empire might not support dozens of payment options, but whatever it supports should be enough for the majority of gamblers. In total, there are 8 payment options supported by this online casino.

Among them are traditional payment options such as Visa, MasterCard, and bank transfer or modern payment methods such as Bitcoin and Ethereum, making it also one of the best Bitcoin casino sites around.

Making both deposits and withdrawals is a breeze here, and it should not take a very long time to receive your payouts. In general, it takes between 1 to 3 business days for the payouts to be processed – depending on the payment option used.

Misc: 4.7/5 

Slots Empire is a great online casino to play real money slots on. Not only is it one of the best online slots sites, but it is also one of the best user experiences you will have online. 

This online casino works very hard to provide the best experience to its users. In case you need any type of help, you can always rely on their customer service, which is available 24/7.

>> Enjoy your 245% deposit match + 55 free spins [Slots Empire] <<

4. Super Slots – Best Site to Play Slots Online on Mobile



  • Slot games: 250+
  • Bonus: 250% up to $1,000
  • Payout time: less than 24 hours
  • Perfectly optimized website for mobile use
  • Excellent 24/7 customer support


  • No demo or practice games
  • Outdated website design

With over 255 quality slot games from leading providers in the industry, Super Slots is a great site for slot lovers. Love to play on the go? Well, Super Slots might be exactly what you are looking for.

Let’s see what exactly Super Slots has to offer.

Game Selection: 4.7/5

Super Slots is a very aptly named casino for the very reason that their slots are simply superb. With over 250 slots available to play, you will never get bored with their magnificent selection of different slots with exciting themes.

All these slots are from the best-known providers in the industry, which ensures the highest quality.

Bonuses & Rewards: 4.65/5 

Another area that Super Slots excels at is in the bonuses and promotions. If you are making your first deposit using fiat money, you can score a 250% bonus match up to $1,000

But there’s more!

You will also be able to receive a 100% match up to $1,000 for the next five deposits. The wagering requirement for this fiat welcome bonus is just 35x. 

Paying with cryptocurrencies? Even better! You can score a 400% welcome match bonus for deposits up to $4,000. The wagering requirement for this crypto welcome bonus is 48x.

Also, this online casino is committed to making gambling equally exciting for new as well as seasoned players. Because of this, it frequently updates the list of bonuses to ensure anyone can find something to use.

Mobile Compatibility: 4.8/5

If you are one of the gamblers who like to play their favorite games on the go, you should definitely check out Super Slots. The website of this casino is perfectly optimized for mobile devices, and no matter how big or small your smartphone’s screen is, you should not have any issues with using Super Slots.

The mobile version of the website is very intuitive, and it is very easy to find anything you might be looking for here. The mobile version supports all the games available on the desktop site.

Banking: 4.65/5

Super Slots again delivers on the banking front by offering a wide variety of different banking options to their players.

There are as many as 15 payment methods supported by Super Slots, which makes banking here a breeze. You can use traditional payment options such as Visa, MasterCard, AMEX, and many more, as well as modern payment methods, including Bitcoin, Ethereum, Litecoin, as well as Ripple, and many others.

As for the withdrawals, you will be able to use 8 payment options. These are Bitcoin, Litecoin, Ethereum, BTC Cash, Ripple, USD Coin, Check, and Bank Wire.

In most cases, withdrawals are processed within 48 hours, depending on the payment option used.

Misc: 4.7/5

Super Slots is truly a great online site for slots. Apart from the things that we have already discussed, there also is 24/7 customer service available here via numerous channels.

Overall, we highly recommend Super Slots to anyone looking for a great mix of superb games and generous bonuses.

>> Grab your 250% bonus match up to $1,000 [Super Slots] <<

5. Big Spin Casino – Best Variety of 3D Slot Games of Any Online Slots Site



  • Slot games: 130+
  • Bonus: 240% welcome bonus up to $1,000
  • Payout time: less than 24 hours
  • 24/7 customer support
  • Great banking options


  • Limited game selection on mobile
  • Simple website design

Big Spin Casino is one of those real money slot sites that focuses on ensuring the best experience for its users. Although it might not have the sheer volume of casino games as other online casinos, it manages to make up for this, thanks to the quality of the games.

Where Big Spin shines the most, however, is its amazing customer support, which is available 24 hours a day, 7 days a week.

Game Selection: 4.8/5

From their traditional real money slots to more immersive 3D slot machines, Big Spin Casino has a great variety of different themes and games to offer its players.

That being said, while they do have a large variety of games, they do not have as great a selection as some of the other big names in the industry; however, the quality of their games is outstanding and worthy of a place on our list.

The best thing about the games that you can play here is the fact that they are from the best-known providers in the industry, ensuring the highest quality of not only slots, but other games as well. In fact, it’s also among some of the best blackjack sites out there.

Bonuses & Rewards: 4.7/5 

When you are getting started at this online casino, you will be able to score a 240% match bonus on your first deposit of up to $1,000.

The offer comes with a 30x wagering requirement which is a standard in the gambling world. The bonuses don’t stop there, however, and there are many others that can be discovered at Big Spin Casino.

Mobile Compatibility: 4.6/5

In general, Big Spin Casino can easily be used on mobile phones thanks to its website being perfectly optimized for mobile gaming. The website works perfectly on both iOS and Android devices. 

However, there are some small issues associated with the mobile version of this online casino. As good as it might be, there are some games that are not supported on the mobile version – this can be a disadvantage for some players.

Banking: 4.7/5

Making deposits and withdrawals at Big Spin Casino is a very comfortable experience. There are eight payment methods supported by this online casino. Among them, you can find options such as Visa and MasterCard, as well as modern payment methods, including Bitcoin, Litecoin, and Ethereum, among many others.

Many of the users of Big Spin Casino prefer to make withdrawals using cryptocurrencies, as they usually take less time and are associated with lower fees.

Misc: 4.8/5

We love everything about Big Spin Casino and give it a solid overall rating of 4.8/5 because it delivers in every aspect that counts as far as real money online slot machines go.

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6. – Best Slots to Play Online for Real Money Jackpots



  • Slot games: 200+
  • Bonus: 300% crypto welcome bonus up to $1,500
  • Payout time: less than 24 hours
  • Amazing progressive jackpot slots are available
  • Crystal clear user interface
  • Great crypto slots


  • Limited payment options
  • No e-wallets

Established in 2013, is one of the leading online slot sites available today. While the number of slots is just about 200, all of them are from the best-known providers in the industry, which means high quality.

While there are many advantages of, it is the best slot site for fast payout, processing withdrawals within one hour.

Game Selection: 4.6/5 is one of the online slots sites that have partnered with leading providers in the industry to ensure the highest quality of the games. Among the providers for you can find RTG, Betsoft, and 12 others.

The total number of real money slots here is about 200, which means that you should not have an issue finding your favorite real money slot games. But didn’t stop there and also offer some of the best live casino games out there, as well as many other exciting titles.

Bonuses & Rewards: 4.7/5 has done a great job when it comes to its bonuses and rewards system. They offer 200% up to $1000 on their fiat currency offering with a decent 35x wagering requirement.

On their cryptocurrencies, they offer an extended 300% up to $1500, again with a decent 35x wagering requirement. These are some amazing incentives for any new player looking for a site that offers their players something nice in the welcome bonus department.

Mobile Compatibility: 4.65/5

Now and again, you come across an online casino site that has paid particular attention to its mobile compatibility, and is just one such site. It has an easy-breezy mobile functionality that is a dream to play on.

While it does not have a dedicated downloadable app, its site is perfectly adapted for mobile use and has great responsiveness with absolutely no lag. One slight drawback is that not all of their games are available in their mobile version.

Banking: 4.7/5 

A wide array of banking options is a must when it comes to what we look for in great online slot sites. does a good job when it comes to banking options. While the number of banking options might be a bit limited, supporting only 7 options, most players should not have an issue when depositing or withdrawing funds at 

This online casino supports cryptocurrencies and credit/debit card payments. You can use BTC or BCH, as well as Visa, MasterCard, and AMEX.

The best thing about banking at is the fast processing of withdrawals. In most cases, payouts take no more than an hour. The fastest option is crypto.

Misc: 4.65/5 is simply one of the best online casinos to use if you are looking to play slots online.

As far as their customer service goes, they have some of the best customer support options available for their users. They are available 24/7 via email, Live Chat, and telephone. 

>> Enjoy up to $1,500 welcome offer [] <<


Best Online Casino Slots Sites – Our Ranking Criteria

Selection of Online Slot Games

When working on our list of the best slots sites online, we focused on several different factors. One of the most important among them was game selection. The more slots for real money a casino offers, the more exciting your experience should be.

Other Casino Games

While we focused on slots, we also considered other options in case you want to switch things up. The best slot sites on our list also offer some of the best real money casino table games

Best Slots Online With High RTPs

RTP, or Return to Player, is a critical factor in determining the quality of an online slot game in terms of winnings. It represents the percentage of wagered money that a slot will return to the players over time. We’ve focused on including sites that offer games with high RTPs, maximizing potential returns for players.


Licensing and regulation are paramount when it comes to the safety and integrity of an online slots site. All the sites on our list are licensed by reputable authorities, ensuring that they operate fairly and securely, adhering to the highest standards of online gambling regulation.

Rewards and Bonuses

Rewards and bonuses are an online casino site’s way of incentivizing their players and an important part of customer loyalty. When working on this list, we focused on the number of bonuses as well as the terms and conditions applied to them.

Mobile Compatibility for Slot Games

More and more online casino slot game players are turning to mobile gaming, and it has become a must for online slot game providers to ensure they have snappy mobile sites to keep their players happy.

Banking Options for Slot Players

Having a good variety of payment options has become an absolute must for the best slots sites in the US to ensure more convenience for their users. All the picks in our list offer users a variety of payment options, ensuring the best gaming experience. 

Best Slots Online for High Payouts

Popular Types of Slots Online in 2023

Slots have evolved over the years, with exciting features being added with the technology advancing. But classics also remain a popular choice among online gamblers. Let’s have a look at some of the most popular slots you will come across online.

Classic 3-Reel Slots

These are the most traditional type of slots, often styled after the original slot machines found in land-based casinos. They usually feature three reels and a small number of paylines, offering a simple and straightforward gaming experience. Despite their basic nature, they are among the best online slots for real money due to their simplicity and nostalgic appeal.

5-Reel Video Slots

5-Reel video slots have become the standard in online casino slots, offering more paylines, better visuals, and immersive themes. These slots often include bonus rounds, free spins, and other engaging features that add to the gameplay experience. They are some of the best slots to play online for real money thanks to their diverse themes drawn from popular culture, mythology, history, and more.

Progressive Jackpot Slots

Progressive jackpot slots, or cash slots, offer the potential for enormous payouts. Each bet placed on these slots contributes a small portion to a collective jackpot, which can be won by any player at any time. These slots are appealing due to their potential, though their regular payouts may be smaller on average compared to other slot types.


Invented by Big Time Gaming and popularized in the late 2010s, Megaways slots feature a dynamic reel system that offers thousands, sometimes hundreds of thousands, of ways to win. Each spin changes the number of symbols on the reels, creating a large number of possible winning combinations and adding an extra layer of excitement to each spin.

3D Casino Slots

3D slots are a newer variety of online slots casino games that use advanced graphics to create a more immersive and engaging gaming experience. They often feature richly detailed environments, characters, and animations that pop off the screen, drawing players into the game’s world.

 Read More: Best Sweepstakes Casinos

Best Slots Sites for Real Money – FAQs

Are Slot Machines Fair?

All the best slot machines to play at reputable and legitimate online gambling houses are fair as they use Random Number Generators (RNGs).

These RNGs are certified by third-party regulators such as eCommerce Online Gaming Regulation and Assurance or eCOGRA for short. 

Can I Play Slots for Free to Practice Before I Play for Real Money?

Yes, most casinos offer you the option to play for free slots to practice before you start playing for real money, but there are some that do not allow you to do so.

After you have tried out games at the best free slot sites, you can start playing slots for real money.

What’s the Most Anyone’s Won on Slots Online? 

The record for the most real money anyone’s ever won on slots online goes to a Finnish player who won $24 million in 2013 in a game called Mega Fortune.

This enormous win resulted from a modest bet of just $0.25 per spin! Mega Fortune is a progressive slot game, characterized by a jackpot that accumulates and expands each time a player spins.

The accumulating nature of this jackpot allows it to grow progressively, leading to potentially life-altering wins for lucky players.

How Do You Win Big on Online Slots?

There’s no surefire way to win, but to maximize potential winnings on online slots, focus on games with high Return to Player (RTP) percentages and significant jackpot opportunities.

Online slots are a game of chance, so there isn’t a definitive strategy to secure big wins. However, choosing games with high RTP percentages can boost your chances as these games pay out more over time. Using offers like Ignition casino bonus codes can give you a boost to play for longer.

Do I Have To Download Any Software Before I Start Playing Slots?

It depends on the casino you use. However, almost all online casinos offer in-browser playing meaning that there is no need to download any software to enjoy their games. 

How Do I Choose the Best Slots Site for Me?

Choosing the best online slot site to play comes down to your preference. Choose the one that offers the features you look for – be it free spins or fun themes.

Personally, we like sites that offer a decent selection of games to play along with some great benefits, such as awesome rewards and safe banking options. A clean, uncluttered user interface with great graphics is also a huge plus.

Related: Best Online Slots in the UK

Best Online Slots Sites – Comparing the Top 5

  • Ignition Casino: About 60 online casino real money slots available, 150% crypto welcome bonus up to $1500, 8 banking options supported; overall score 99%
  • BitStarz: About 4,000 casino games, 5 BTC welcome package, instant crypto payouts; overall 97%
  • Slots Empire: 200+ online slots available, 245% first deposit match bonus plus 55 free spins, 8 payment options supported; overall score 97%
  • Super Slots: 250+ online slots available, 400% welcome match bonus for crypto deposits up to $4,000, 15 payment methods supported; overall score 96%
  • Big Spin Casino: 130+ online slots available, 200% welcome bonus up to $1,000, 8 payment options supported; overall score 93%

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How to Get Started at an Online Slots Site

Signing up and playing online slots at Ignition is straightforward and takes just a few steps. Follow this simple guide, and you’ll be spinning those reels in no time. The process is similar at other top online slots sites as well.

Step 1: Create Your Account

  • Visit Ignition’s website
  • Click the orange “Join” button, located in the top-right corner
  • Fill in your personal information
  • Select a strong username and password
  • Finalize the registration by clicking “Complete”

Step 2: Verify Your Email

  • Check your inbox for a verification email from Ignition
  • If it’s not there, remember to look in your spam folder
  • Click the “Verify” link in the email

Step 3: Log In and Head to the Cashier

  • If you’re not auto-logged in after email confirmation, manually log in
  • Navigate to the cashier section of the website

Step 4: Select Your Welcome Bonus and Deposit Method

  • Pick your welcome slots bonus from the list of promotions
  • Choose your preferred deposit method
  • Follow the on-screen instructions to complete your deposit

Step 5: Start Playing Slots with Your Bonus

  • You’re now set up and ready to play
  • Use your bonus money to try out Ignition’s wide range of slot games

So, What Are the Best Sites to Play Online Slots?

Whether you are looking for old-fashioned online slots or you are on the hunt for modern reels with amazing graphics and sound effects, you will find them at any of the online casinos listed in our article.

After a detailed overview of the best sites, we ended up giving Ignition the number one spot due to its dedication to ensuring the best experience for its users. However, no matter which casino you choose to go with from our list, you are sure to have a lot of fun.

So, pick your favorite and start spinning the reels now – but don’t remember to gamble responsibly.

DISCLAIMER: Online gambling comes with risks. There’s no guarantee of financial gain, so you should only gamble with what you can afford to lose. All information on this site is for entertainment purposes only.

While gambling can be fun, it can also be addictive. If you or anyone you know suffer from a gambling addiction problem, we recommend you call the National Gambling Helpline on 1-800-522-4700 to speak with an advisor. Please remember that our guides and all gambling sites are 18+. Also, check with local laws if online gambling is legal in your area.

This site is 100% independent and reader-supported, but we may receive communion from third-party sites or affiliate links. Regardless, we ensure we provide information for your best online gambling experience.

For free online gambling addiction resources, visit these organizations:

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