So, you’re looking for the highest paying slots you can play online. But did you ever wonder how much you can expect to win when playing on a slot machine? Well, it’s not entirely imaginary that you can expect some level of Return to Player (RTP) when you are spinning the reels. But it’s also never a sure way to win money (after all, slots are gambling, and gambling is a game of chance).
Let’s start by explaining what the RTP concept means before diving into the highest RTP slots. RTP stands for the amount of money a slot game is expected to pay out in winnings over the long term. For example, if a slot has an RTP of 96% (which, by the way, is the average for online slots), you can expect to get back $96 of every $100 wagered.
Again, RTP is calculated over millions of spins and is not a guarantee. But keep in mind that every online slot has a Random Number Generator (RNG), which is the internal engine that ensures the outcome of every spin is completely random. Thus, the RTP is a statistical average calculated over millions of spins. So while one player can lose thousands of dollars, another can land a winning spin once wagering the minimum betting amount. So always gamble responsibly.
If you like the idea of getting max value while extending your playing time, high-RTP slots are a great iGaming option. This guide will tell you about the highest RTP slots that you can play at online casinos right now.
🧐 Why High RTP Slots Are Worth Checking Out
Simply put, the higher the RTP, the more money you can expect to win back on average over time. This doesn’t mean that you’ll win more money playing high-RTP slots; it just means that you can stretch your bankroll further. This is what players who seek value, longevity, and fairness look for.
Our top 10 high-RTP slots, which we will introduce you to shortly, combine high returns, exciting themes, and thrilling features to deliver the highest level of entertainment. Furthermore, these games are licensed and have been tested and certified by accredited auditors, like eCOGRA, GLI, and iTech Labs. This ensures that the games are fair and random.
If you're looking to maximize your slots gameplay, we've got plenty of tips and hints to consider while you're spinning the reels:
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- Top 10 Highest RTP Slots You Can Actually Play Online
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- When is the Best Time of Day to Play Slots?
- When to Switch Bet Amounts on Slots
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💵 Highest RTP Slots You Can Actually Play Online
As promised, here are our top 10 high-RTP slot games. Our experts considered a variety of angles when compiling this lineup. While RTP was the primary factor, we also considered features, mechanics, maximum win potential, and replayability. If you want to boost your bankroll, it’s always worth looking for a free spins casino that will award you with free spins on selected slots.
Blood Suckers
NetEnt launched Blood Suckers in 2013. This horror-themed slot offers an RTP of 98% and features a pick ‘em bonus game, free spins, and multipliers. A maximum payout of 1,014X is pretty good for an older fixed-jackpot game.
Jokerizer
A 98% RTP and features like win both ways, Jokerizer Mode, and free spins make Jokerizer one of Yggdrasil’s most popular slots. This carnival-themed game has been a mainstay of popular slots sections at online casinos since it was released in 2016. Stakes start at just a penny, and it serves up a shot at a 6,000X payout.
Money Cart
Released by Relax Gaming in 2021, Money Cart is a Wild West-themed slot that comes with a 5X4 Reel configuration, an RTP of 98%, and plenty of features, including hold & win, a bonus game, multipliers, reelset changing, and free spins. The $0.01 minimum stake is perfect for those with smaller budgets.
The Catfather
Pragmatic Play’s The Catfather offers a fun feline theme and a high RTP of 98.1%. The game debuted in 2016 and is played on a 5X3 grid with nine paylines. Top features include win both ways, symbol substitution, and a free spins bonus round in which winnings are multiplied by 4X. Even though it’s technically a penny slot, you need to wager all nine paylines to win the maximum of 2,250X.
Marching Legions
Many slot games offer an ancient Roman theme, but Marching Legions by Relax Gaming is the one with the highest RTP. It’s 98.12%. Key features of this high-volatility slot include free spins, respins, nudge, sticky wilds, and bonus buy. Stakes range from $0.10 to $100, and the maximum payout is 10,000X, which is quite generous.
1429 Uncharted Seas
1429 Uncharted Seas by Thunderkick takes you to the high seas and challenges you to navigate maps that lead to a bounty of 670X your bet. The main features include retriggerable free spins, multipliers, expanding wilds, and a 98.6% RTP. Unlike most other slots on the list, this one’s a low-volatility game, which means you can expect to win more often.
Mega Joker
NetEnt’s Mega Joker was a hit when it launched in 2013, and it remains one of the most popular high-RTP slots to this day. Key features include free spins, multipliers, and cascading reels. It’s a classic-style slot on a 3X3 grid that offers a high-variance experience, a 99% RTP, and a progressive jackpot that has paid out over $100,000.
Book of 99
Features like expanding symbols, free spins, and symbol collection make Relax Gaming’s Book of 99 an attractive option for players of all stripes. Naturally, the 12,075X max win potential and 99% RTP don’t go unnoticed. It’s a high-volatility slot with an ancient mythology theme, a 5X3 reelset, and the Book Of mechanic.
Ugga Bugga
Ugga Bugga by Playtech offers an RTP of 99.07%, which makes it the second-highest RTP slot on our list. Main features range from free spins and respins to multipliers and a progressive jackpot. However, the most unique aspect of Ugga Bugga is the reel setup. On top of that, it can take up to 10 seconds for the reels to come to a halt, which extends playing time.
Goblin’s Cave
Goblin’s Cave by Playtech is our highest-RTP slot. The game debuted in 2012, and it is still very popular today, thanks to its 99.32% RTP, classic 3X3 reelset, and features like hold & win, a pick ‘em bonus game, respins, and a win potential of 150X. Its medium volatility will appeal to a wide range of slot players.
Everyone has their own memorable experiences in Las Vegas, but we've curated our own Vegas Chronicles for anyone who's a fan of Sin City folklore:
🌏 Where to Find High-RTP Slots Online
Finding our top slots is easy. Because they are so popular, and the fact that top providers created them, you’ll find them at most top online casinos. You’ll often find them located in the site’s popular slot section or the high-RTP slot section, but you can speed up your search by using the casino’s search function or filters.
Don’t forget that you can try most of these games for free by visiting the provider’s website. Several US states offer online casinos, including Pennsylvania, Michigan and New Jersey.
The bottom line is that you can easily find these games. Just be sure that the site you play at is licensed and that the RTP or payout rate is displayed in the game’s information section. This will ensure that the games are fair.
Sticking to a plan is key when playing casino games, regardless of whether you're online or on the casino floor. If you need a bit of extra help, dive into our strategy guides below:
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- Online Blackjack Strategy: Does Basic Blackjack Strategy Work Online?
- Roulette Strategy Guide for November 2025: Tips to Play Better and Longer
- Slot Strategy Guide: How to Spin Smart
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- When is the Best Time of the Day to Play Baccarat?
- When is the Best Time of Day to Play Blackjack?
- When is the Best Time of Day to Play Craps?
- When is the Best Time of Day to Play Slots?
- Casino Games With the Lowest Skill Requirement
- Online Casino Glossary
✍️ Quick Tips for Playing High RTP Games
Just to be clear, all slot games are based on luck. No slot system or strategy has ever proven to be effective over the long run. In other words, there is no way to guarantee profits. However, we can offer a few tips to help you get the most out of your high-RTP slot journey.
Remember that RTP is calculated over millions of spins, and not one or two sessions, and that some online slot games have different RTPs at different casinos. This means you should check the game’s information section to ensure it’s set to the highest RTP setting.
Finally, despite the desire to win big, focus on the fun. With high-RTP slots, you should be able to remain entertained for a long time. So never treat gambling as a sure way to make money, and never gamble on money you can’t afford to lose.
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Ziv has been deep in the iGaming trenches for over 20 years, long before most people could spell "geolocation compliance." With a background in marketing and business development at some of the biggest names in gambling tech, Ziv knows the industry from the inside out. Since joining Covers, he's turned his sharp eye (and sharper keyboard) toward everything happening in the fast-moving world of online gambling. Whether it's new state launches, the latest twists in regulation, or what the big operators and game providers are cooking up next, Ziv breaks it all down with clarity, context, and just the right amount of snark. He covers the business side of betting, from affiliate trends and revenue reports to the tech powering your favorite slots. His motto in writing is “let’s make it make sense without putting you to sleep.”
When he’s not tracking gambling legislation or looking for the next breaking story, Ziv is living and dying with every pitch and play from his beloved Pittsburgh Steelers, Pirates, and Penguins. As a Pitt graduate, it’s a city loyalty forged in heartbreak, but one he wouldn’t trade for anything, except maybe a few more playoff wins.
When away from the keyboard, Ziv loves to hit the road and soak up the energy of casinos. Whether strolling the neon jungle called the Vegas Strip, or wandering into a smoky riverboat casino in the Midwest, Ziv’s in his element. He’s the guy chatting with players, blackjack dealers, and asking pit bosses way too many questions, all in the name of “research,” of course. The casino floor isn’t just his workplace, it’s a weird and wonderful ecosystem of flashing lights, wild characters, and pure sensory overload, and he wouldn’t have it any other way.






