Best rtp casino sites

Best rtp casino sites


Highest RTP Online Slot Machines in 2024

5 stars

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  • 300+ real money titles from Revolver, RTG, Rival, Spinomenal, Wohoo, and more
  • All games fully optimized for mobile
  • Supports major credit cards, Bitcoin, and altcoins

What we like:

  • Hot Drop jackpots
  • Try games free with no sign-up
  • $5 min. deposit with USDT

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5 stars

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  • 300+ real money titles from Revolver, RTG, Rival, Spinomenal, Wohoo, and more
  • All games fully optimized for mobile
  • Supports major credit cards, Bitcoin, and altcoins


350% up to $2,500


5 stars

What we like:

  • Hot Drop jackpots
  • Try games free with no sign-up
  • $5 min. deposit with USDT
4.5 stars

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  • Over 400 real money slots from Betsoft and Nucleus
  • App compatible with Android and iOS
  • Progressive jackpots and slots tournaments

What we like:

  • Responsive customer service
  • 20 payment methods including cards and 10+ cryptos
  • Generous recurring promotions

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4.5 stars

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  • Over 400 real money slots from Betsoft and Nucleus
  • App compatible with Android and iOS
  • Progressive jackpots and slots tournaments


$5,000 Welcome Package


4.5 stars

What we like:

  • Responsive customer service
  • 20 payment methods including cards and 10+ cryptos
  • Generous recurring promotions
4 stars

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  • 200+ real-money casino games
  • Supports cryptos and credit cards
  • $5 min. deposit with USDT


$3,000 Welcome Package


4 stars

What we like:

  • Exclusive crypto bonuses
  • 25x bonus playthrough
  • Great poker room

Key Things You Need to Know

  • High RTP (return to player) slot machines are games that give you the best chance of winning your money back in the long term. RTP is defined as a percentage value.
  • If an online slot has a payout percentage of 95%, you can expect to win back $95 out of every $100 wagered, while the remaining $5 goes towards the house edge. The best online slots have a payout percentage of 96%.
  • High RTP slot machines do not guarantee you will win each time you play. This only means you have a higher chance of winning back your money over time.
  • High RTP slot machines can be found at land-based casinos and the best online slot sites, although the average payout percentage differs.
  • Keep reading this guide to the highest RTP slots and discover the best payout for online slots available, or read our online slots guide for more advice on playing and winning.

List of Best Payout Online Slots

The best online slots with high RTPs are available from various game providers, although a few game providers dominate the market:

  1. Mega Joker by NetEnt (99% RTP): A classic fruit machine with a varying jackpot split across five reels, three rows, and five paylines.
  2. Jackpot 6000 by NetEnt (98.9% RTP): Each time you hit a winning combination, you can collect your winnings or gamble to double them.
  3. Blood Suckers by NetEnt (98% RTP): A vampire-themed slot with various bonus features, including a free spins bonus round with all winnings tripled and a Pick Me bonus.
  4. Starmania by NextGen Gaming (97.87% RTP): A five-reeled, ten-payline slot that benefits from a free spins bonus round and a gamble feature.
  5. Kings of Chicago by NetEnt (97.8% RTP): A mafia-themed slot that merges the game of poker with the world of video slots.
  6. Esqueleto Explosivo by Thunderkick (97.6% RTP): Singing skills, dropping symbols, multipliers, an Explosivo wild, and 17 paylines characterize this slot.
  7. White Rabbit by Big Time Gaming (97.24% RTP): A five-reel slot game with 248,832 ways to win. It comes with a feature drop system, free spins, and wilds.
  8. Immortal Romance by Microgaming (96.86%): A slot jam-packed with features, including up to five wilds reels.
  9. Joker’s Jewels by Pragmatic Play (96.5% RTP): A basic online slot with five reels, five paylines, and a non-progressive jackpot.
  10. Money Train 2 by Relax Gaming (96.4% RTP): Up to 50,000x your stake up for grabs, a Money Cart bonus round, wilds, and more.

High RTP Slots Reviewed

Now that you know the best online slots with a low house edge, it’s time to discover what makes these games extra special in the online slot reviews below.

Mega Joker by NetEnt (99% RTP): A classic fruit machine with a varying jackpot that is split across five reels, three rows, and five paylines

Mega Joker is a traditional Vegas online slot game with no exceptional bonus features. The game comes with a Supermeter mode that makes it stand out as one of the best real money slots. Mega Joker is built across three reels, three rows, and five paylines.

Mega Joker

To generate any winning combination, you must land several identical symbols on a payline. This is where the Supermeter bonus game comes in. You can opt to collect your winnings or try your luck and gamble your winnings in a bid to double them. To give you an idea, if you place a bet of 200 coins and land a joker symbol anywhere on the reels, the mystery prize can go up to a whopping 2,000 coins.

Mega Joker also comes with a progressive jackpot that is up for grabs. With every spin and bet, it contributes 3% to the pot. 

The payout percentage for this game varies between 85.28%, going up to 99%. It is also considered a high-variance game.


  • Ideal for classic slots fans.
  • The option to gamble your winnings.
  • A widely available slot machine.


  • No free spins or wild symbols.
  • It might not appeal to modern video slot fans.

Jackpot 6000 by NetEnt (98.9% RTP): Each time you hit a winning combination, you have the option to collect your winnings or gamble to double them

Jackpot 6000 is a classic fruit machine created to enter the hearts of classic slot fans. It comes with all the usual symbols, including lemons, grapes, and cherries. It is split across three reels, three rows, and five paylines.

Jackpot 6000

Jackpot 6000 works a little differently from other games. When you generate a win, you hop onto a second set of reels on the top of the screen. Like the previous game in this list, it benefits from the Supermeter. You can keep your winnings or try to win more money by gambling it away.

That’s it! There are no free spins or wild symbols. This is a classic game through and through. It comes with medium variance.


  • Ideal for fans of fruit machines.
  • The option to gamble your winnings.
  • A game that has stood the test of time.


  • No free spins or wild symbols.
  • It might not be attractive to fans of modern slots.

Blood Suckers by NetEnt (98% RTP): A vampire-themed slot with various bonus features, including a free spins bonus round with all winnings tripled and a Pick Me bonus

Blood Suckers is a popular NetEnt game split across five reels, three rows, and 25 fixed paylines. To generate winning combinations, you must land at least three identical symbols on a payline from left to right. It is a vampire-themed slot with a whopping 98% RTP.

Blood Suckers

Blood Suckers comes with two main bonus features. The vampire-slaying bonus lets you pick between different coffins to reveal cash prizes. You must land three bonus symbols from left to right in the base game to activate this bonus.

You activate the free spins bonus round if you land three scatter symbols on the reels. You immediately receive ten free spins with all winnings tripled by x3.


  • Highly appealing game to fans of video slots.
  • Low variance slot, so expect a steady flow of wins.
  • A timeless classic with a good number of bonus features.


  • Since it has a high RTP, not all online casinos host it.
  • Its sequel, Blood Suckers II, has a lower RTP.

Starmania by NextGen Gaming (97.87% RTP): A five-reeled and ten payline slot that benefits from a free spins bonus round and a gamble feature

Starmania is a game that is similar to Starburst by NetEnt. If you have played Starburst, this game will come as no surprise. It is played across five reels, three rows, and ten paylines. All wins must be generated from the leftmost reel in a right-hand direction.


With its outer space theme, this 2015 slot release may look a little dated. It comes with one bonus feature. Land three or more bonus scatter symbols on a single spin to activate the free spins bonus round. You immediately receive ten free spins.

This is where it gets interesting. During this feature, 30 extra stacked wilds are added to the middle three reels, which can lead to explosive wins. You can also retrigger the free spins bonus round.


  • Classic space-themed slot game.
  • Free spins with extra stacked wilds.
  • Up to 1,000x your stake.


  • The slot game is a little basic. 
  • There is only one bonus feature.

Kings of Chicago by NetEnt (97.8% RTP): A mafia-themed slot that merges the game of poker with the world of video slots

Kings of Chicago is a brilliant online slot based on gangsters, bars, and poker. It is played across five reels, three rows, and five paylines. 

Kings of Chicago

This game combines poker elements with a slot machine, and like in poker games, a natural royal flush is a full hand. If you land one of these, you earn yourself 2,000x your stake.

If you land three or more scatter symbols on the reels, you can win between three and 100x your wager. This also triggers the free spins bonus round, where you can win between ten and 30 free spins depending on the number of triggering symbols.

A 2x multiplier is in play throughout the free spins bonus round. If the doubling wild turns up, your wins are quadrupled.


  • Fun and unique online slot machine.
  • Generous free spins bonus rounds.
  • A doubling wild boosts your winnings.


  • Very few paylines.
  • It can be a little complicated to comprehend.

What is RTP?

Also known as the return to player or payout percentage, this term refers to the percentage of all the wagered money on an online slot and the expected return to the player over time.

For example, if an online slot has an RTP of 96%, it means that over time, for every $100 staked on this online slot, you can expect it to pay back $96 in winnings on average. The remaining $4 represents the house edge or the online casino’s profit.

The software game developer mainly determines the payout percentage of a slot game. This information is not always released, but the majority of game providers release this information. You will not be guaranteed to receive that percentage because it is calculated based on you playing the same online slot for a long time.

Is High RTP or Low RTP Better?

As a player, going for online slot games with the highest RTP is far more beneficial for your morale and bankroll. No one wants to play an online slot that results in one loss after another. 

A high RTP online slot means you can expect to recoup a percentage of the money wagered on the game over time. Generally, jackpot games have lower payout percentages because there are only one or a few winners of the jackpot prizes.

Playing high RTP online slot games is wise if you are new to online gambling. You may also want to consider the slot’s variance levels. Variance levels refer to the risk elements of a game. A high variance slot will pay substantially but far less frequently. You can expect to spin through a few rounds without generating any wins. 

So, when shopping for the highest RTP slots, it is worth paying attention to the variance level.

What is the Difference Between High RTP and Big Wins?

High RTP refers to the percentage of money wagered on an online slot and how much you can expect to recoup over time. 

However, big wins are, to some extent, unexpected. No definite factor guarantees big wins if you play a specific online slot for a long time. Big wins refer to how much money you can win on a single spin. They can happen on low and high RTP online slot games. It can also result in a jackpot win.

RTP and jackpot wins are not intertwined or correlated in any shape or form. A high RTP online slot boosts your chances of winning over time, although big wins are not guaranteed.

As a player, you must decide whether you’d prefer somewhat guaranteed wins by playing a high RTP machine, leaving it to chance, or playing any online slot, regardless of its RTP value, and chasing big wins.

Advantages & Disadvantages of Playing Slots with Big Payouts

If you have access to critical information, such as the payout percentage, that could help you rope in wins, but the chances are you would never consider playing low RTP online slots.

Here are some top reasons to play free online slots, especially when shopping for a high RTP slot.

Advantages of playing free online slots

Allows you to get a good feel of the mechanics

Whether you are into bonus games, free spins bonus rounds, or want to play the best RTP slots, playing free slot games enables you to get a good feel of how the slot game plays out, the value of the symbols, and the various in-game features.

Most importantly, it gives you a good feel of the variance levels and determines whether any tested online slots fit your playing style.

You don’t need to tap into your own funds

Because you are not using your own funds, running out of money or blowing your bankroll on a high-variance online slot game is not a risk.

Even if you shop for the best RTP slots, you can easily calculate how much money you win by playing free games.

The best online slot sites have free games

We must mention this because it is not always the case, but the best online slot sites allow you to play online slots for free before playing for real money. Some more shady casinos don’t necessarily allow you to do so.

Disadvantages of playing free online slots

You can’t win real money

If you have your eye on a progressive jackpot slot, you cannot win cash prizes when you are playing for free, which dampens the excitement levels a little.

While playing free online slots is a great way to figure out the best online slots for you, you cannot win money back or cash out.

You cannot claim a welcome bonus

You cannot claim a match deposit bonus offer or a free spins deal at one of the best online gambling sites for US players without depositing money.  A welcome offer often doubles your deposited funds and significantly extends the gameplay.

Are High RTP Slots Legal to Play?

When it comes to online gambling in America, you should be aware that US gambling laws are not the same in each state, and while gambling in some states may be legal, it is not always the case in others.

Similarly, even if you reside in a state where gambling is legal, you must know what types of gambling are legal and which ones are not. Once again, this varies from one state to another. While some states have legalized slot machines, others haven’t. You can discover more on our Slot Machine Laws by State page.

If you are based in a US state where online gambling is illegal, nothing stops you from joining one of the best offshore gambling sites. These sites are unregulated and operate in a legal “grey area.” However, they’re completely safe and licensed. They also welcome players from the US and offer massive casino bonuses and promotions.

We recommend you access these online casinos via a VPN to safeguard yourself and have an extra layer of privacy and anonymity.

The Best High RTP Slots Casinos

One of the main benefits of playing the highest RTP slots is that they are available in the hundreds at the best online casino sites. Licensed and regulated online casinos have high RTP slot machines, which are unlikely to be rigged.

If you have ever wondered if online slots are rigged, playing at licensed casinos squashes that rumor. The same cannot be said about rogue casinos.

  • Café Casino: Best overall for free slot games, bonuses, and progressive jackpots.
  • Ignition Casino: Runs a decent range of slot tournaments and houses the best RTP slots.
  • Red Dog Casino: Greets you with a $45 no-deposit bonus to play online slot games.

How We Ranked High RTP Slots Sites

We understand the importance of keeping your personal and financial information under wraps. Because of this, we thoroughly check all the online casinos with high RTP slots and make sure they meet the requirements when it comes to your needs.

High RTP slots

Unlike land-based casinos, the information for payout percentages is available, so you can play high RTP slots knowing the percentage rate. Some casinos tend to exclude high RTP slot games from their game libraries. The RTP slots sites recommended at LetsGambleUSA feature high RTP slots, so you don’t have to miss out on online slot machines with the best payouts.

Availability of Games

While high RTP slots may be what you are looking for, we also check the availability of other games. Be it online slots, progressive jackpot slot games, RNG casino games, or even live casino games, the best high RTP slots sites should offer a variety of games to keep all players happy.

Availability of Game Providers

The more providers an online slots site has, the better it is for you in terms of variety. You can also access a wider selection of online slot games with a high payout percentage. We look for game developers such as RealTime Gaming, Rival Gaming, and Betsoft.

Customer Support Service

Having easy access to a customer support team is vital. If you have a question or encounter technical problems while playing online slot games, you should have access to multiple communication channels. Most online casinos offer live chat, email, and phone support.

The best online casinos, including Café Casino, Ignition, and Red Dog, all have multi-channel customer support teams available.

Safety & Security

While playing online slots is fine, you should research to safeguard your interests before jumping the gun and signing up for an account at any online casino that pops up on your screen. Luckily for you, our team of professionals at LetsGambleUSA has run the necessary checks to ensure you are safe.

We always look for signs of a valid gambling license and thoroughly check what safety and security measures are in place. The best online casinos have the latest SSL encryption technology as well as firewalls in place to keep you protected. This also extends to when making a deposit. All deposits and withdrawals are processed using tight measures.

The safest online casinos also have their games and random number generators checked and certified regularly. Some casinos collaborate with independent third-party auditors such as iTechLabs and eCOGRA to ensure fair games.

Moreover, we also check what responsible gambling tools are in place should you need to add limits to your account.

Casino Bonuses & Promotions

Once we have checked all the proper measures are in place, we go to the list of available casino bonuses and promotions. While the size of a casino bonus is important, the terms and conditions are generally far more critical, especially if you want to get your hands on an excellent deal.

Casinos such as Red Dog also welcome new players with a $45 no-deposit bonus that lets you test out a new casino without putting your money on the line. Once you are ready to deposit, a welcome deposit bonus offer is available at your fingertips. This can entail match deposits, free spins, cashback, or reload bonuses.

Pay attention to various terms within the terms and conditions, including the wagering requirements, the caps on winnings, game exemptions, and playthrough contributions on specific games. All of these terms dictate which games you can play.

Best Payout Online Slots Sites Reviewed

If you are ready to start playing slots, we recommend the three online slots sites below. All of these sites offer slot games with high RTPs.

Café Casino―Best casino overall for high-RTP slots

Café Casino is a relatively new online casino compared to casinos on this list. It was launched and established in 2016 and has managed to stay ahead of the competition thanks to its vibrant design and fresh look.

Café Casino jackpots

Range of Slot Games

With over 400 gaming options, you can access the best high RTP slot machines and various RNG casino games by the likes of Radi8 Games, RealTime Gaming, Genesis Gaming, Qora Gaming, and Woohoo Gaming.

You can also play various progressive jackpot slots and Hot Drop Jackpots. These jackpots are guaranteed to drop regularly.

Payment Methods

Café Casino has a wide range of payment methods available. To start, you only need to make a minimum deposit of between $10 and $50 via bank debit and credit cards, bank transfers, or cryptocurrencies like Bitcoin, Bitcoin Cash, Ethereum, and Litecoin.

To withdraw your winnings, you must have a minimum of between $10 and $50 in your account. While bank debit and credit cards are unavailable for cashing out, you can still withdraw your winnings via bank transfers or cryptocurrencies. All withdrawal requests are processed within four working days.


As a new player, you can access the casino’s welcome deposit bonus offer. You can claim a 350% deposit bonus of up to $2,500 if you deposit via Bitcoin or any other cryptocurrency. If you prefer fiat deposit methods, you can claim a 250% deposit bonus of up to $1,500.

Customer Service

The customer support team at Café Casino can be contacted via various communication channels. You can get in touch by phone at +1 888 364 1850, via live chat, or by sending an email to [email protected]


Café Casino is the ideal gambling playground for players who love a modern-looking casino site that comes with all the bells and whistles. It offers a good choice of welcome deposit bonuses, and you can also expect various treats and rewards in mystery bonuses.

The selection of the best high RTP slot games is impressive and goes hand-in-hand with some of the most tempting progressive jackpot slots.

Ignition Casino―Runs a good range of slots tournaments and houses the best RTP slots

Ignition Casino forms part of the Lynton Limited casino network, including Café Casino and Bovada. It was launched and established in 2016 and offers many online casino gaming options.

Ignition Casino Games

Range of Slot Gaming Machines

RealTime Gaming mainly powers Ignition Casino, but that does not mean it only offers one gaming option. Ignition Casino offers the option to play slots online, RNG casino games, and some of the world’s biggest progressive jackpots, including Cleopatra’s Gold and Aztec’s Treasures.

Payment Methods

To start at Ignition Casino, you must make a minimum deposit of $20 or more, plus any additional fees. You can deposit via bank debit or credit cards or the digital currencies Bitcoin, Litecoin, Bitcoin Cash, or Tether.

The minimum withdrawal largely depends on your chosen payment method to cash out your winnings. It varies between $10 and $100.


As a newly registered player, you can claim a 150% match deposit bonus of up to $1,500 when depositing one of the available digital currencies or a 100% match deposit bonus of up to $1,000 when opting for traditional payment methods. The deposit bonus can be used to play slots and has a low and fair 25% wagering requirement. A minimum deposit of $20 applies to claim this welcome bonus offer.

Customer Service

The customer support team at Ignition Casino can be contacted at any time of the day or night via live chat, by phone at +1 800 266 7798, or by sending an email to [email protected]


Ignition Casino is a fantastic all-rounder that caters to fiat and crypto depositors. The fair and low wagering requirements for the welcome deposit bonus offer make this casino a highly compelling and attractive option for high RTP slot games.

Types of Online Slots Bonuses

While the best online slot games with a high RTP are already beneficial for your bankroll and will help you extend your gaming session, many casino bonuses are at your disposal to lend a helping hand. You must understand the various terms and conditions attached to these bonuses. The terms are likely to vary from one casino to another.

No-Deposit Bonus

The no-deposit bonus is one of the most attractive yet rarest casino bonuses given to new players simply for registering for an account, but it can also be provided to loyal players. This is a freebie, and you don’t have to deposit to claim it. You must register for an account and verify via email to claim it.

The bonus can come as some free spins on a qualifying slot game or as a small sum of bonus money. Regarding terms and conditions and wagering requirements, they tend to be a little tougher and harsher than other casino bonuses because they don’t require a deposit.

Welcome Bonus

The welcome bonus is the most widely available casino bonus on the market. Also known as the deposit or match deposit bonus, the welcome bonus is usually characterized by a percentage rate where the casino matches the money deposited.

The welcome bonus may have significantly low caps if you are a high roller, although most online slot sites offer specific promotions for high rollers.

Free Spins Bonus

The free spins promotion can come either as a welcome bonus replacing the match deposit bonus offer or tied to it. As the name implies, you are given some spins on a particular slot game in the online casino.


A cashback bonus is fairly common. You are given a percentage of your losses generated from the money deposited. Some cashback deals come free of wagering requirements, but most come with playthroughs attached. You can use these funds to continue playing slot games without traveling to a land-based casino in Las Vegas.

VIP Bonuses

Most players are automatically enrolled in exclusive loyalty schemes, while some are asked to join exclusive VIP programs. Whatever it is, these loyalty schemes have been designed to provide you with various perks and rewards. These include faster and higher withdrawal limits, a personal account manager readily available to assist you, and a 24/7 customer support team.

You can also expect tailor-made bonuses with lower wagering requirements. The bonuses are likely to vary from one casino to another, but they give you the option of free rounds on a few games.

Deposit Methods for Playing High RTP Online Slots

If you want to play video slots with a high RTP, you must pick an online casino that offers your chosen payment method. There are many different types of banking methods available. These are covered below:

Debit and Credit Cards

Debit and credit cards may be one of the oldest payment methods available, but most players consider them reliable and preferred. The good news is that most online gambling sites accept Visa, Maestro, and Mastercard.

These options are great for making deposits and withdrawals thanks to their high safety and security measures. While withdrawals may be slow, bank cards are still considered reliable.


E-Wallets have become popular recently because they are safer, faster, and more efficient than debit and credit cards. E-wallets act as the middle person between yourself and the casino, so you never have to share any data-sensitive information with the casino.

Though some fees do apply, they generally are very low. E-wallets such as Neteller and Skrill are pretty popular, as are PayPal and ecoPayz.

You should also know that most offshore gambling sites do not accept e-wallet payments from US-based players. You must use MatchPay as a peer-to-peer proxy payment gateway to pay with Skrill or PayPal. Another option would be to use your e-wallet funds to purchase cryptocurrencies or a prepaid voucher and use that to make a deposit.

Prepaid Vouchers

Prepaid vouchers have been created for players who want extra convenience and high safety and security measures. Prepaid vouchers such as PaySafeCard and PayNearMe enable users to exchange cash at one of the hundreds of local stores nationwide for a voucher. These vouchers can be used to deposit at an online casino site. While it is a highly secure payment method, it cannot be used to cash out your winnings. In this case, you would have to opt for another payment method.


Online casinos that accept Bitcoin and other digital currencies are on the rise. They are a fast and effective method for making a deposit and withdrawal. Digital currencies, such as Bitcoin Cash, Ethereum, Litecoin, and Dogecoin, are the most popular methods.

Not only can you benefit from instant transactions, but you also have a high degree of anonymity and security.

Pay by Phone

A Pay by Phone payment method lets you deposit by simply entering your mobile phone number. The deposit is charged to your phone bill. It cannot be used to cash out your winnings, but it is still a quick and convenient method to deposit without sharing your bank card information.

Bank Transfers

Bank transfers are considered one of the slowest payment methods but are very safe. Online casinos such as BetOnline and Café Casino allow players to make a deposit and withdraw with this method. Be aware, however, that your funds can take a few days to show in your account.


What is a good RTP for slots?

The payout percentage of real-money slots varies considerably between those found at land-based casinos and those available at online casino sites. At land-based casinos, the RTP hovers around the 88% mark, while the average RTP rate for real-money slots online is 96%.

Is high or low RTP better at online casinos?

That would depend on your personal choice. However, we believe a high RTP is much better because you can stretch your bankroll. You can expect to rope in the money wagered over time.

Which slot machines have the highest RTP?

The top RTP slots are Blood Suckers, Jackpot 6000, and Mega Joker by NetEnt.

How do I know if my slot machine has RTP?

We recommend looking at this page’s list of the best RTP slot machines. These games carry high RTPs. Most software game developers also publish this information.