The Best RTP Slots For March

John Bonello

Updated by John Bonello

Content Editor

Lee James Gwilliam

Fact Checked by Lee James Gwilliam

Senior Vice-President

Last Updated 7th Mar 2025, 08:03 AM

Welcome to the latest collection of high RTP slots! As a keen slots player, I like to find games that give me entertainment and the best chances to win some money back. Over time, I’ve gathered a tidy list of these types of online slots with high RTP. Have a look, see if you like any of my suggestions, and take them out for a spin. But before you do that, read on to learn more about what RTP means and why it’s an integral part of every slot machine!

Key Takeaways:

  • Games like Book of 99 (99% RTP) and Mega Joker (99%) offer some of the highest RTP percentages.
  • Low variance slots offer frequent small wins, while high variance games pay larger, less frequent rewards.
  • Renowned providers like NetEnt and Play'n GO offer top high-RTP slots, enhancing game quality and reliability.

My List of Slots With Highest RTP

Over the past years, I’ve managed to build a list of high RTP slots that shine when it comes to features and the chances they provide of hitting some good wins. Of course, since I’m always on the lookout for new games that fall into the best RTP slots category, you might find that this list changes over time. But change is good – it means that game providers are adding more and more of the best RTP online slots that are worth your time and money.

Book of 99 (99% RTP!)

Right at the top of my list is Book of 99, offering, as the name suggests, the mind-blowing RTP percentage of 99%. This highly volatile slot comes with a pretty standard 10-payline, 5 reels grid. But then you also have the chance to trigger Free Spins and Expanding Symbols. In the Wild Collection feature, potential wins can reach up to 12,070x the stake. Here's what makes this slot stand out:

  • Incredibly High RTP (99%) – One of the highest RTP slots available, offering a massive 99% return-to-player rate, making it a standout choice for players seeking better long-term value.
  • Classic "Book of" Mechanic with a Twist – Combines the popular expanding symbol free spins with a unique collection feature, where collecting wild book symbols fills a meter to trigger extra free spins.
  • High Volatility & Big Win Potential – With a max win of up to 5,000x your bet, this slot delivers thrilling, high-risk gameplay while retaining familiar mechanics that fans of "Book of" slots love.

You can play this best RTP slot at the online casino below.

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Jokerizer (98.00% RTP)

The RTP on this game is no joke! And apart from the 98% RTP rating, Jokerizer also boasts two bonus modes. In the Mystery Win, you’ll have the chance to crack a jackpot of up to 6,000 coins. To do this, you need to get 3 Jokers on the reels on the same spin. Then there’s the Jokerizer bonus feature. You can activate this after every win to enter a high-stakes play. Every spin will take 20 coins from your winnings. And while you’re at it, you'll need only two Jokers to trigger the Mystery Win feature. Here's what makes this slot stand out:

  • Mystery Wins for Instant Payouts – Landing three or more Joker symbols anywhere on the reels triggers a Mystery Win, offering prizes up to 6,000 coins, adding excitement to every spin.
  • Jokerizer Mode for High-Paced Action – Winning spins activate Jokerizer Mode, where players can gamble their winnings for a higher chance of triggering Mystery Wins, increasing volatility and excitement.
  • Classic Slot Feel with Modern Twists – With its bright visuals, retro fruit machine theme, and fast-paced gameplay, Jokerizer delivers a blend of nostalgic charm and modern slot mechanics for an engaging experience.

You can play this best RTP slot at the online casino below.

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Money Cart 2 (98.00% RTP)

The only way to win real cash in Money Cart 2 is through the Re-spin Round. This is the game's main bonus feature. To trigger it, you need to land three bonus symbols. This tends to happen more frequently than in standard slots. During the bonus round, Money symbols are added to the reels. These stick there while you get 3 free spins. Any spin that lands a symbol will reset re-spins back to 3. Here's what makes this slot stand out:

  • Bonus-Only Gameplay – This slot skips traditional spins and jumps straight into the re-spin feature, making every round feel like a high-stakes bonus game with no base game distractions.
  • Unique Collector & Modifier Symbols – The game features special symbols like Payer, Collector, Sniper, and Necromancer, which enhance multipliers, resurrect symbols, or expand the reels, leading to massive payouts.
  • Expanding Reels & Huge Win Potential – The grid can expand up to 7 reels, increasing the chances of filling the screen with high-paying modifiers, and the slot offers a max win of 5,000x your bet.

You can play this best RTP slot at the online casino below.

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Money Cart Bonus Reels (98.00% RTP)

The initial 5x4 grid of Money Cart Bonus Reels can expand by 2 more reels (hence the name). Money Cart Bonus Reels is full of fun, with purple Bonus Symbols and outlaw characters that play a special role in the game. Here's what makes this slot stand out:

  • Bonus-Only Action with Persistent Play – This slot removes the base game, letting players dive straight into the Money Cart re-spin feature, ensuring non-stop high-volatility excitement.
  • Powerful Feature Symbols & Expanding Reels – Special symbols like Collectors, Payers, and Snipers boost multipliers, while the reel set expands up to 7 columns, increasing win potential.
  • Massive Win Potential – With a max payout of 10,000x your bet, this slot offers bigger rewards than previous Money Cart games, making it perfect for players chasing huge wins.

You can play this best RTP slot at the online casino below.

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Blood Suckers (97.99% RTP)

The game’s two bonus rounds host the bigger payouts in Blood Suckers. One is a bonus game triggered by three or more Stake & Hammer symbols – here, you get to open coffins for a chance to loot cash prizes. The other is a Free Spins Bonus. To enter it, you need to reveal three or more of the Vampire Bride scatter symbols. You’ll play ten free spins with a 3x multiplier! Here's what makes this slot stand out:

  • High RTP (98%) for Better Returns – With an impressive 98% RTP, Blood Suckers is one of the best slots for players looking for low volatility and frequent payouts.
  • Vampire-Slaying Bonus Game – The interactive Bonus Game lets players open coffins to slay vampires for instant cash prizes, adding an exciting layer of engagement beyond standard spins.
  • Dark Gothic Horror Theme – Featuring creepy vampire symbols, eerie sound effects, and haunting graphics, Blood Suckers creates a spine-chilling atmosphere perfect for horror fans.

You can play this best RTP slot at the online casino below.

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Blood Suckers Megaways (97.66% RTP)

Red Tiger Gaming bolted 117,649 ways to win to the popular original slot. This created Blood Suckers Megaways. The maximum winning potential of this game goes up to a whopping 20,522x bet. There are also four modifiers in the base game. You get to pick one of them before starting the Bonus Round. Here's what makes this slot stand out:

  • Megaways Mechanics with Up to 117,649 Ways to Win – Each spin can have a different number of symbols per reel, creating up to 117,649 ways to win, making for unpredictable and exciting gameplay.
  • Cascading Wins & Free Spins with Multipliers – Winning symbols disappear, allowing new ones to drop in for consecutive wins, while the Free Spins feature comes with increasing multipliers for bigger payouts.
  • Dark Vampire Theme with Gothic Atmosphere – This updated version of the classic Blood Suckers slot features haunting visuals, eerie sound effects, and immersive animations, perfect for horror slot fans.

You can play this best RTP slot at the online casino below.

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Big Bad Wolf (97.35% RTP)

Possibly one of the most popular games online, the well-made Big Bad Wolf video slot is great fun. There’s a fantastic Free Spins round boosted with multipliers and scatters. The appropriately named Blowing Down the House feature delivers spins and boosted payouts. Under the right conditions, the Wolf can huff and puff a hefty 1,000 coin jackpot prize. Here's what makes this slot stand out:

  • Swooping Reels for Consecutive Wins – Winning symbols disappear and new ones fall into place, creating chain reactions of multiple wins per spin for increased payout potential.
  • Pig Wilds & Free Spins Bonus – Consecutive wins turn pig symbols into wilds, while scatters trigger free spins, with the Big Bad Wolf blowing down houses to unlock even more spins.
  • Charming Fairy Tale Theme & Smooth Gameplay – Based on the Three Little Pigs story, this slot features high-quality visuals, playful animations, and engaging mechanics, making it both fun and rewarding.

You can play this best RTP slot at the online casino below.

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White Rabbit Megaways (97.24% RTP)

Apart from the high RTP, White Rabbit Megaways has two other mesmerizing qualities. Players get 16,807 possible ways to win in the base game. And these go up to a staggering 248,832 ways during the Free Spins Bonus feature. Megaways slots have become a popular choice among online slot fans – and for a good reason. The popular mechanic invented by BTG offers many more opportunities than traditional games. It adds a good splash of fun and excitement to the mix. Here's what makes this slot stand out:

  • Expanding Reels with Up to 248,832 Ways to Win – The Megaways system allows reels to expand up to 12 symbols high, drastically increasing the number of ways to win and creating huge payout potential.
  • Feature Drop Bonus Buy – Players can buy the free spins feature at any time using the Feature Drop option, skipping the base game and jumping straight into the high-paying bonus round.
  • Cinematic Alice in Wonderland Theme – With stunning visuals, whimsical animations, and a mysterious soundtrack, White Rabbit Megaways brings a fairytale adventure to life with thrilling slot mechanics.

You can play this best RTP slot at the online casino below.

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Jack Hammer 2 (97.07% RTP)

Entertainment is guaranteed in Jack Hammer 2, a NetEnt slot where the smallest wins can turn out into huge payouts. How? A winning combination of three or more Jack Hammer 2 prize symbols sticks in place while the reels spin again for free. This process keeps repeating until there are no more wins. Wild substitutions add to the fun, while with five or more free spin symbols, you can get up to 20 free spins with a 2X multiplier. Here's what makes this slot stand out:

  • Sticky Win Feature for Consecutive Payouts – Winning combinations trigger the Sticky Win mechanic, holding winning symbols in place while the rest of the reels re-spin, allowing for multiple wins in a row.
  • Exciting Free Spins with Random Multipliers – Landing five or more free spin symbols activates Free Spins Mode, where all wins are doubled, and extra wilds increase big win potential.
  • Comic Book-Style Theme with Engaging Storyline – Featuring a 1930s detective theme, bold comic book visuals, and smooth animations, Jack Hammer 2 delivers a cinematic, crime-fighting slot experience.

You can play this best RTP slot at the online casino below.

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Secrets of Atlantis (97.07% RTP)

The dive to unravel the riches of the lost city of Atlantis is well worth it, with the game’s 97.07% RTP. In Secrets of Atlantis you'll be spinning precious gems on up to 40 lines. Free Spins, Colossal Symbols, and Stacked Wilds add to the entertainment but also help you win. Here's what makes this slot stand out:

  • Highlighted Reels & Nudge Wilds for Bigger Wins – The Colossal Highlight feature selects three middle reels at random, nudging stacked wilds into place for massive payout potential.
  • Win Both Ways Mechanic – Unlike traditional slots, this game pays both left to right and right to left, doubling the chances of landing winning combinations.
  • Stunning Underwater Theme & Smooth Gameplay – With high-quality graphics, serene ocean visuals, and a mystical soundtrack, Secrets of Atlantis offers a relaxing yet exciting slot experience.

You can play this best RTP slot at the online casino below.

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RTP Explained

If, like me, you love slots and spend time playing slots for real money online, then you should know that you and I are the P in RTP. That’s right. P stands for Player. RTP, or Return To Player, is a kind of benchmark that indicates the theoretical rate of return that the game offers to players. In layman’s terms, a slot with an RTP of 97% is basically telling you that over a period of time, it will pay $97 for every $100 players put into it.

Now, wait just a moment - it does get a bit more complicated. That 97% RTP does not mean that if you put $100, you’re guaranteed to walk away with $97. Because the RTP applies to all the players playing the slot. So, if over a period of time, there are 1,000 players playing the same game, that percentage is split between all of them. That is why some players end up with no wins or a few, while others go home with a nice prize.

Still, playing on slots with high RTP is not a bad idea. It’s logical, and you would want to play on slots that are more likely to pay a return than other slots.

Compare Slots

The RTP on Regular Slots

The regulars here are slots that everyone loves playing. Games like the Book of Dead (96.21% RTP), Starburst (96.09% RTP), Reactoonz (96.51% RTP), Jack and the Beanstalk (96.28% RTP), Sweet Bonanza (96.51% RTP) have a cult following. Thousands of players seek them out all over the world. And why wouldn’t they? These online slots have beautiful visuals. They are really entertaining and have some exciting bonus features. These types of games have an average RTP that ranges between 94% to 97%. I consider any slot that goes higher than 97% RTP to be a high RTP slot.

The RTP on Progressive Jackpots

For some, progressive jackpot slots are the best in town. The reason is, of course, the often huge sums of money waiting to be won by one lucky spin. I’m not attracted to progressive jackpots since I prefer the fun (and better-constructed) features offered by many video slots. However, I cannot deny that prizes that often soil the million-dollar mark do tempt me just a little. Before jumping in on the progressive train, you should know that progressive jackpots have some of the lowest RTP percentages in the industry. For example, the most famous of them all, Mega Moolah, has an RTP of 88.12%. This is way lower than that of regular slots and surely not even close to high RTP slots.

What Makes Best RTP Slots Worth Your While?

Advantages
Wins are more frequent than on low RTP games
Slot might have lower risk
Focus on the fun rather than on the wins
Disadvantages
Lower payouts

How to Check the RTP on a Slot

The best RTP slots will usually show you the RTP rating immediately since, for the maker of the game, it’s one of the main selling points. Take Book of 99 by Relax Gaming as an example. As soon as you open the game, you’ll find an RTP 99% badge waiting for you.

If the game you’re playing does not announce the RTP, you should know that there’s more than one way to verify the rating. You can access the game information section from the game options menu. The RTP rating of most slots will be written within that section. Or, if you cannot find it, you can look for a review of the slot online. Nearly every game that has ever been made has a review. Just chuck the slot name in the search bar of your favorite search engine, and you’ll get the RTP rate straight away.

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Casinos.com Trivia

To verify the actual RTP of a slot, you need to divide the total amount that the game paid out to the players over a specific period of time by the total amount gambled by the same players, then multiply the result by 100.

Flexible RTP

I would like to add a note here about certain slot games that can have more than one RTP. Sometimes, you’ll come across games like these, and the reasons why they have more than one RTP rate can be one of two. Some game providers like Microgaming, NetEnt, and Quickspin have embraced a flexible RTP approach. This means that they provide different RTP versions of the same game to casinos. So, for example, one version would have a 97% RTP, and the other version would have 95% RTP.

Another reason is that the same game will have an RTP for the base game and a different one for the bonus rounds. For example, NetEnt’s Cornelius has a 96.04% RTP during the base game, but if you use the Buy Feature to play directly the bonus game, you’ll be looking at a 95.96% RTP. 

Volatility is Not RTP

In slot slang, volatility, and RTP are two terms that you’ll often find in the same sentence or at least on the same page. It’s because these two things are related, although not the same.

I’ve already explained what RTP is, but here’s a refresh – it’s the return to player that the slot you’re playing is expected to churn out over time. On the other hand, volatility, also known as variance, is a word that describes how often you can expect a payout. So, by determining the frequency of payouts, you’ll also be getting an indication of how risky the game is. If it pays a lot, the risk is low. It can also be medium or high.

How does this volatility risk affect your wins? Slots with low volatility pay more often, but payouts are smaller. Highly volatile slots don’t pay out that frequently, but when they do, the payouts are bigger.

The highest RTP slots may come with any level of volatility, but it’s not that easy to determine the volatility of a game. The best thing you can do is to check out the reviews that my colleagues and I publish on this site. We’ve covered hundreds of slots, so the review of the slot you’re looking for is probably on casinos.com!

Finding The Right Balance Between RTP And Slot Volatility

Balance is everything, even when it comes to slots. While you may think it’s logical to go for high RTP slots that also have high volatility, in truth, it may not be your best option.

It all boils down to your budget. Slots with a lower risk tend to suit smaller bankrolls. High volatility slots which pay out less frequently might put a dent in your wallet before you see a good-sized win.

Are All Best RTP Slots Worth Playing?

NO! A high RTP does not make a slot good. I'll mention one example of a slot with a staggering 99% RTP that I simply can't even look at, and that's Mega Joker by NetEnt. It's a slot with a retro design that is too much. And although Mega Joker has different modes, bonuses, and features, including a varying jackpot, I did not find this game appealing. I mentioned this game as an example. There are other slots with a high RTP that didn't make it to my list of favorite RTP slots. 

For me, a great game must tick all the boxes to be considered a game worth playing: design, features, gameplay, mechanics, and win potential. Of course, there's absolutely nothing wrong if you like this game. After all, tastes are very subjective to personal preferences. In all fairness, NetEnt launched this game way back in 2011 and made it look as close to an old-school slot machine as possible.

Slot RTP Variations

RTP is a critical metric in online slots. RTP typically falls into three main brackets: low, medium, and high. 

  • Low RTP slots generally range from 88% to 94% and are often associated with frequent but smaller wins; a popular example is Gold Frontier Jackpots FastPot5 from Yggdrasil. Pots O’Riches Mega Moolah is another slot with a low RTP of just 88.12%.
  • Medium RTP slots fall between 94% and 96%, striking a balance between win frequency and payout size, with games like Starburst and Gonzo’s Quest being fan favorites. 
  • High RTP slots exceed 96%, offering better long-term returns; standout titles include Mega Joker (99%) and Blood Suckers (98%). 

Additionally, some slots feature variable RTP, where the RTP can change depending on game phases or player choices. For instance, some games, such as White Rabbit Megaways, offer higher RTP in the bonus rounds compared to the base game.

While it's uncommon for online slot games to allow players to directly select between different Return to Player (RTP) modes, some slots offer features that effectively let players influence the RTP through their choices or game modes. For instance, in Mega Joker by NetEnt, players can utilize the Supermeter mode, which can affect the game's RTP, potentially increasing it up to 99%. Similarly, Scudamore's Super Stakes Slot by NetEnt offers a high RTP of 96.11% and includes a bonus feature called Bet Slip. During Bet Slip, the RTP can rise up to 96.99%. While these games don't allow direct selection of RTP modes, the available features and modes can impact the effective RTP experienced by players.

Where to Play the Best RTP Slots

Finding and playing the best RTP slots is not a big deal. The games I list on this page are so popular that the most reputable online casinos have them in their slots section. Just have a look at my list of recommended casino online sites and pick one.

Playing Best RTP Slots on Mobile

In a virtual online world that’s mostly built for mobile, online slots are designed to adapt to the needs of the many. Which is why all of the best RTP slots on my list play the same on whichever device you use.

Some online casinos have their own downloadable native casino app. This promises a more immersive user experience. I tend to agree, as the app lets you focus on the game at hand. Those casino sites that don’t come with an app will still render well on a smartphone or mobile device. So put your mind at ease: you can play high RTP mobile slots while you’re on the move.

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John Bonello
John Bonello
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With a passion for words, John is always thinking about what to write next. He has over 12 years of experience working with online content and as an Editor at Casinos.com, John makes sure that readers get the latest and most accurate information about the online gambling industry.

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