Casinos and online slots go hand in hand. It may seem daunting at first trying to find the perfect game, but you may ask which are the best slots casinos?

Well, to answer that question, we will run through the best online slots to wager real money with, as well as explore in more depth the types of online slots you may come across.

Top 10 Real Money Online Slots Casinos in the USA 2024

At BasketballInsiders, we have analyzed some of the most well-known online slots for money, and this is our top 10 list:

  1. Wild Casino – No.1 online slot casino for real money
  2. Everygame – Good online slots for bonuses and free spins
  3. Bovada – Fantastic progressive jackpot slots
  4. Las Atlantis – Overall best online slots casino for real money
  5. Lucky Creek – Wild West-themed casino with promos & tournaments
  6. BetOnline – Good reputation offering the best free online slots
  7. Slotocash – Generous welcome bonus & good range of slots
  8. Jazz Casino – Huge selection of games & 100 free spins bonus
  9. Lucky Block – Huge welcome bonus for slots & excellent crypto options
  10. Mega Dice – The best Telegram casino with thousands of games & slots

Best Online Slots Casinos for Real Money Comparison

Now, after we have revealed our top list of the best online slots USA for real money, let’s take a closer look at some of the core features of each title. We have referred to elements, such as the payout rate, and the minimum and maximum bet levels in the following table:

Casino Payout rate (RTP) Min & Max Bet amounts Jackpot Bonus features
Wild Casino 88.12% $0.25 min
$6.25 max
$56,250 Multipliers, scatters, free spins, quick spins, retriggering, wild symbols, multiplier wilds
Everygame 96.82% $0.09 min
$18.00 max
$45,000 Multipliers, Scatters, Sticky Wilds, Retriggering, Wild Symbol
Bovada 95.02% $0.20 min
$500 max
$500,000 Multipliers, sticky wilds, scatters, stacked wilds, random wilds, wilds 
Las Atlantis 96.09% $0.10 min
$100 max
$50,000 Stacked wilds, expanding wilds, re-spins
Lucky Creek 98.83% $0.01 min
$75 max
$100,000 Stacked wilds, multipliers, stacked symbols, expanding wilds
BetOnline 96% $0.01 min
$100 max
$25,000 Scatters, wild symbols, free spins, expanding wilds
Slotocash 99.50% $0.10 min
$10.00 max
$5,000,000 across progressive jackpots Wilds, scatters, bonus wheel, wild reels, expanding reels
Jazz Casino 96.5% $0.10 min
$250 max
$25,000 Wilds, scatter, bonus, free spins, bonus round
Lucky Block 94%-99% $0.10 min
N/A max
$1m draw Wilds, scatter, free spins, bonus round, multipliers 
Mega Dice 94%-99% $0.10 min
N/A max
$1m draw Wilds, scatter, free spins, bonus round, multipliers

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Everything You Need to Know About Online Slots

Playing online slots for money has been legalized in several US states, and it continues to prove very popular – indeed, revenue in the online gambling market is projected to reach $95.05bn in 2023. The best online slots casinos provide immersive gameplay, and feature stunning graphics.

The following section looks at the different types of real money online slots games, plus the basics of how online slots function.

Types of Online Slots

The best online casinos have features that set them apart from the rest of the pack. While some slots players prefer a particular theme, others will pick a slot for handsome wins. So, let’s take a closer look at the three different types of online casino slots.

Video Slots

Video slots have more animation to the gameplay and feature a more computerized version of your favorite games. You can also unlock many special features, including scatters, where the player can access different bonuses, such as free spins. At Red Dog, there is a range of the latest video slots, including 777 slots.

Progressive Jackpot Slots

Progressive jackpot slots see the jackpot grow each time a player spins. Each time a player spins, it contributes towards the overall jackpot that increases until someone wins it, and the process then starts all over again. Mega Moolah is one of the most popular progressive jackpot slots.

As progressive slots grow at a rapid pace, they can pay out millions of dollars. The best games will have a tiered system for progressive jackpots, from mini to the grand jackpot. Here are the top 10 progressive slots for jackpots, and the maximum jackpot they offer.

Progressive Jackpot title Software provider Max Jackpot
Mega Moolah Microgaming $1,000,000
Mega Fortune NetEnt $1,000,000
Immortal Romance Microgaming $1,000,000
Age of the Gods Playtech $500,000
Deal or No Deal Endemol $100,000
Jackpot Giant Online Slot Playtech $50,000
Wolf Gold Pragmatic Play $250,000
Divine Fortune NetEnt $300,000
Superman II Playtech $225,000
Gladiator Playtech $250,000

Classic 3 Reel Slots

Despite not being as popular as they were, the traditional 3-reel slots layout features three columns attached. To win, players need three symbols to match on the reels.

Amongst the respected software developers that produce this 3-reel slots is NetEnt, who are preferred by the slot purists. Sure, these nostalgic slots may offer little when to comes to bonus features, but there are a number of paylines to look out for. So, if you are indeed a fan of 3-reel slots, why not explore Precious Treasures, A Night with Cleo or Caesar’s Triumph – three excellent slots all found at Bovada.

Caesar's Triumph are among the best 3-reel slots offered at Bovada

Other Slot Guides

Explore our other slot guides you can take advantage off:

How Online Slots Work

It may come as little surprise that there is relatively little skill in mastering online slots. Slots can be bright, flashy, and fast, but they need not be confusing. Rather, real money slots USA rely heavily on luck.

Real money online slots are played on a series of vertical reels, where you will find symbols. In every game, the reels will spin, and will stop randomly thanks to a random number generator (RNG). The randomness of these prevents games from being rigged, and RNGs are licensed by third parties. They are there to ensure fairness throughout the online slots casino.

To get started, you will need to select a bet credit, and the number of paylines you wish to wager on. If you elect to play with maximum betting credits, then this will make you eligible to win the progressive on specialty slot machines.

Once you have wagered a credit, you will need to pick the payline. Classic slot machines simply have reels that go straight across, while more contemporary online slots will have paylines, where you can win vertically, horizontally or diagonally. This is in part down to the scatter symbols where you can activate dozens of paylines. The more paylines you select to play, the more credits the online slot will require.

With online slots, there are a variety of key features, such as free spins or cascading reels. With the latter, winning symbols are taken out of play, and you receive a free re-spin. Consecutive winning cascades will be awarded a progressive multiplier. When it comes to taking out winnings, cryptocurrencies are accepted, and they can expedite the withdrawal process.

Best Online Slots Software Providers

The best online slots casinos for real money win in the USA will work closely with a wealth of top slots software providers to launch the latest titles to engage with gamblers. They will be truly immersive, and the experience will be seamless for those playing on either the desktop version of an online casino or on mobile no download online slots.

Either way, there are a plethora of renowned software developers, which you may have heard of. Below, we will give you the lowdown on each of them, and the sort of game titles that are flying off the production line.

NetEnt

Widely considered one of the best in the business, NetEnt’s origins lie in Scandinavia, and with headquarters in Sweden and Malta, they are renowned for producing state-of-the-art games. With over 200 games in the casino library, NetEnt has a proven track of creating slots and poker games.

No corners have been cut by NetEnt, and there are a raft of memorable online slots games in their roster, including Gonzo’s Quest and Starburst.

Microgaming

Since releasing their first online casino in 1994, Microgaming are a heavyweight in their own right, and they are known for producing games for land-based casinos as well. You can find it all at Microgaming from slots and tables games to software for live dealer suites, and multiplayer titles.

Microgaming’s slot titles have been extensively reviewed, and while they may not be as dramatic as NetEnt, they are still a triumph. If you want to play slots online, you could well encounter a Microgaming title. Among the titles in its library, includes Mega Fortune, Divine Fortune, and Mega Moolah.

Playtech

Also, another powerhouse featured in this list is Playtech. From its humble beginnings in 1999, Playtech rose to prominence quickly, and it has become one of the foremost developers of slots titles. Playtech prides itself on being able to produce cutting-edge games that will resonate with a wide casino audience.

Playtech has crossed over into the land-based casino environment, but when it comes to real money slots USA, you can be guaranteed quality. There is a mixture of themes running through their titles, and there is a heavy focus on 3D graphics, and progressive jackpots. Some of the most popular Playtech titles you can try out, include Age of the Gods, and Superman II.

Pragmatic Play

One of the most venerable software developers in the world, Pragmatic Play has been delivering exceptional online slot games for many years, and they are certified, and licensed in over 20 jurisdictions. Pragmatic Play has tried to push the boundaries to make their games innovative, and mobile-focussed, and gamblers will have no qualms when they play one of their titles.

With over 200 HTML5 games at their disposal, Pragmatic Play provides an award-winning service. Among the titles offered by Pragmatic Play are Sweet Bonanza and Fruit Party.

Realtime Gaming

More commonly referred to in casino circles as RTG, Realtime Gaming are one of the biggest providers of online slot games on the Internet. If you are a regular online slots player, you will probably have heard of RTG, and you would have tried out their games.

Most RTG-powered casinos have myriad slots in relation to other games. While there may not be as many slot titles compared to Microgaming or NetEnt, games such as Cleopatra’s Gold, and Stardust are reputable, and they are free to play too.

Bonuses for Online Slots

The best online slots USA will roll out exciting promotions, and offers. When you sign up, you may be entitled to some of the best bonus slots, such as Riche Wilde & the Book of Dead. Winnings from these bonuses are paid as bonus cash after fulfilling the wagering requirements before withdrawing.

So, let’s take a look at some of these offers when signing up to new online slot sites.

Matched Bonus

A slots site will match the deposit you place in your account with the same amount of bonus cash if it is a 100% bonus. So, if you pop $10 into your account, you will get a $10 bonus. If for example, you put $10 in for a 200% bonus, you will get $20 in cash. The top online slots will always offer matched bonuses, and they will have favorable terms and conditions.

Best Real Money Slots Online wild casino bonus

Free Spins

When you open a new account, you will be able to use online slots for real money free spins on the games of your choice. However, at some sites, you must be wary that the online slots free spins offer may only apply to particular titles. Free Spins can sometimes be a standalone offer, while sometimes it may combine with a deposit bonus. Usually, you have to play through the qualifying game, and they have an average playthrough of 30x before they can be cashed out as winnings.

At Raging Bull, you can tap into the welcome bonus, and gain free spins on Fucanglong by entering the promo code ‘Bigger is Better’. But what is good here, is that the free spins don’t have any additional wagering requirements or come with delays for processing withdrawals.

Best Real Money Slots Online mega dice offer

No Deposit Bonuses

Essentially, real money online slots with no deposit bonuses act like free bet credits. This is usually a straight-up cash offer where the casino will put money into your account. All you will have to do is sign up to a site to activate the offer.

Online Casino Welcome Bonus Promo Code Wagering Requirement Expiry Period
Wild Casino $5,000 Welcome Bonus WILD250 35x None
Everygame 600% Up To $6000 Deposit Bonus HUGEWINS 30x 14 days
Bovada 100% deposit bonus up to $3,000 BVD1000 25x None
Las Atlantis 280% match deposit bonus up to $14,000 LASATLANTIS 35x None
Lucky Creek $7,500 Welcome Bonus INSIDERS 40x 30 days
BetOnline Match deposit bonus up to $3,000 BOL1000 30x 30 days
Slotocash 600% Welcome Match Deposit Bonus up to $6000 INSIDERS 35x 14 days
Jazz Casino 200% up to $2,000 + 100 Free Spins INSIDERS 35x None
Lucky Block 200% Bonus up to $10,000 + 50 Free Spins INSIDERS 35x 30 days
Mega Dice 200% Bonus Up To $10,000 + 50 Free Spins INSIDERS 40x 14 days

Best Payout Online Slots

When it comes to best slots payout percentage, variety is key. However, RTP (Return to player) is critical for discovering how frequent a slot pays out. The very best RTP slots have an RTP from 95 to 97%. The RTP shows how much money you would still be holding after a long gaming session – therefore, $100 wagered on Starburst with an RTP of 96.09% should leave you with $96 remaining after the first hour.

But, slots can be volatile – players can win big or crash hard. But, RTPs are sophisticated and have computers that simulate millions of spins. RTPs measure the effectiveness of the slot’s payout rate, so it makes sense for a slot player to play with a higher RTP than a lower one, especially for consistent wins.

The slot’s RTP can also be found via a quick Google search or the actual online casino where information about the RTP can be displayed.

So, let’s now discover 10 of the best RTP slots.

Slot title RTP
Blood Suckers 98%
Caesar’s Empire 97.50%
777 97%
Immortal Romance 96.86%
Dead or Alive 96.86%
Starburst 96.09%
Ancient Gods 96%
Book of Ra 96%
Gonzo’s Quest 95.97%
Cleopatra’s Gold 95.80%

Free Online Slots

Plenty of casinos allow you to enjoy online slots games for free in practice mode. These are excellent for being able to trial the game to see the games that suit you when playing the best online real money slots.

Free online slots are fun, and let you sample the gameplay and theme. Some of the best free online slots can be located at slot sites in this guide, including Wild Casino, who offer Bitcoin slot machine games

There are several benefits attached to trying out free slots online before playing for real money, and this includes:

  • No account needed – You don’t need an account to try out the demo mode. You can head over to any casino site, and have a play around on the titles that have demo modes.
  • Practice at your own pace – There is no need to feel rushed when you play online slots games. You should go at your own pace, and once you feel more comfortable, then you can transition to the real money version.
  • Study advanced paylines – Some of the slots will enable you to figure out how different paylines can be created, and within that, you can focus on your own strategy.

Of course, there are some downsides too with practicing slots online for free:

  • No bonus offers – If you have a fully-fledged account, you will be able to access some of the most generous bonuses, and the best online slots to win real money will offer matched deposit bonuses or free spins.
  • Limited slot game variety – Essentially, when you try slots in demo mode, you won’t be able to advance too far in the game without playing for real money. This can, to a certain extent, become repetitive over time.
  • Minimal customer support – While account holders will be able to call upon customer support through a variety of measures, if you are playing in demo mode, you will generally be overlooked by the casino site until you sign up.

Best Mobile Slots

Since the creation of HTML-5 in the mid to late 2010s, slots have become more conducive to mobile play. Before that, slots were created using Adobe Flash, but these presented a serious issue to iPhone users. Nowadays, many online casinos will have slot apps where you can enjoy a seamless experience of playing your favorite slots, and depositing cash into your account.

With mobile no download online slots, you can download only cached browser content, and as they are small files, they take barely any time. As long as you have a decent Wi-Fi connection, you will be able to navigate to the slots you wish to play.

Many of the top software providers have worked tirelessly to make sure the mobile product of their games are as efficient as the desktop version. Although the screen will be smaller, the sound effects, and gameplay won’t be too dissimilar to their desktop counterparts.

Indeed, many mobile slots are compatible with a wide range of devices, and software providers will install 3D graphics to make playing slots hassle-free if you are on the move.

Top Tips for Playing Best Online Slots Real Money

Playing online slots games that pay real money can be a thrilling experience. And if you want to get the most out of them, here are five top tips to ensure that your time spent reel-spinning is a fruitful one.

Don’t get trapped in a slotting rut – It can be very easy to get too bogged down playing the same slots, and not get much joy from them. Instead, shake things up a little, and explore new slot titles or slots sites to make things more exciting.

Choose slots with high RTPs – This might seem like a bit of a no-brainer. However, you should always choose slots with higher RTPs than low RTPs. Slots by their very nature, can be highly volatile, but we recommend choosing slots with an RTP of 95-97%, so you can generate wins more regularly.

Take advantage of bonuses – If you are playing new slots sites, you will be deluged with welcome offers. Some of these bonuses will enable you to bet without the risk of losing your own cash.

Manage your bankroll – Always bet within means, and don’t bet more than you can afford. Ultimately playing slots should be fun. So, when the fun stops, stop!

Don’t Play when you are tired – While poker players can tilt when they make bad decisions or they are overly emotional, the same principle hard earned applies to playing slots for real money. Always play when you are at your sharpest, as you need to be level-headed. If you are feeling tired, take a break and come back to the slots when you are feeling refreshed.

Conclusion

Real money slots USA have become a staple of the online casino world. With more and more titles being released on a regular basis, players are spoilt for choice as to which games to play. Of course, 3-reel slots still have their place and are relevant. However, those who want to challenge themselves may opt for 5-reel slots that come with an abundance of pay lines.

Either way, in this guide, we have tried to shed light on how online slots USA function and how you can profit from them. If you have enjoyed what you read, you should try out the best online slots USA for money we have mentioned.

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Author photo
David Myers
Gambling Content Editor

David spent 25 years as both a writer and editor within the betting/casino industries - including at The Guardian, Racing Post, 888Casino and Sky Sports Racing - prior to joining BBI. He has a diploma in sub-editing and law, is the author of four books, and remains a successful sports tipster.

All posts by David Myers
Author photo
David Myers Gambling Content Editor

David spent 25 years as both a writer and editor within the betting/casino industries - including at The Guardian, Racing Post, 888Casino and Sky Sports Racing - prior to joining BBI. He has a diploma in sub-editing and law, is the author of four books, and remains a successful sports tipster.

All posts by David Myers