List of 10 slot games with RTP over 98%

🗝️ Key Takeaways

• Discover our pick of the best-paying online slots, from Ugga Bugga at 99.07% to classic NetEnt titles that reach 98% and above.
• Learn why several of the biggest figures only hold in a particular mode, such as the Supermeter in Mega Joker and Jackpot 6000 or the Big Bet in Monopoly Big Event.
• See how a bonus buy can lift a slot's return, as with Money Train 2, which climbs from its standard figure to about 98% when you buy the feature.
• Compare RTP alongside volatility and maximum win, because a high return does not tell you how often or how big the payouts will be.
• Confirm the figure at your chosen casino, since many slots run in several versions and operators decide which one to offer.
• Treat a high RTP as better long-run value, not a promise of profit in any single session.

Every slot carries a percentage that shows how much of the money staked on it flows back to players over time. That figure is known as RTP, and we find it one of the quickest ways to compare the long-run value of two games.

In this guide, we explain what RTP means, what counts as a strong figure and which slots sit at the very top of the table. We also point out the catches, because some of the most impressive numbers only apply when you play a game in a particular way.

💡 What RTP Is and How It Works

RTP, short for return to player, describes the share of total stakes a game is built to hand back across a huge number of spins. Providers calculate it from the game's maths and test it over millions of simulated rounds before release.

Take a slot rated at 96%. Over an extended stretch of play, it should hand back around €960 from every €1,000 staked on it, with the leftover €40 forming the house edge, the casino's built-in margin.

That figure is an average across every player and every spin, not a forecast for your own session. In the short term, results can swing a long way in either direction. For a full breakdown, read our explainer on how RTP works in slots.

📊 High RTP vs Normal RTP

Most online slots return somewhere between 94% and 96%. Anything above 96% is generally considered above average, while games that hit 98% or higher are uncommon enough to stand out.

The gap looks tiny on paper, yet it grows with every spin. On average, a 99% slot holds back €1 from each €100 staked, while a 95% slot holds back €5, five times as much.

Bear in mind that providers often release the same slot in several RTP versions, leaving the operator to pick one. It pays to open the paytable or help menu before you start spinning.

✅ Why High RTP Slots Are Worth Seeking Out

• Better long-run value: a higher RTP means a smaller house edge, so your money tends to last longer over time.
• Smarter bonus play: when clearing a bonus, a higher return costs you less as you work through the wagering, provided the game counts towards it.
• Easier risk planning: knowing the return helps you set a budget and pick games that suit your style.
• Transparency: reputable providers publish their RTP figures, so you can compare games before you spend anything.

🏆 Our Top 10 Best-Paying Slots

Here is our list of the online slots with the strongest returns, along with the conditions that apply to some of the headline figures.

Ugga Bugga from Playtech tops our list with a 99.07% return, a figure very few online slots can match. It is a simple game rather than a feature-packed modern release, built around a straightforward base game.

It is not as widely available as some of the other titles here, so you may need to search a few casino lobbies to find it.

Relax Gaming's Book of 99 pairs a 99% return with high volatility. It takes the familiar Book-style formula and adds a Book and Wild Collection feature, with a top prize of 12,075x your bet.

Unlike several titles on this list, its headline RTP does not depend on a special mode, which is why we rate it as one of the purest high-return slots around.

The Mega Joker slot from NetEnt is a classic fruit machine with a twist. Its 99% figure only holds in Supermeter mode, the upper game you move into after a win, and only at the top Supermeter bet.

Played in the basic mode, the return is noticeably lower, so the headline number depends on how you play. Features include the Supermeter, a progressive Mega Joker Jackpot and wild symbols, with payouts reaching 2,000x your initial bet.

Barcrest's Monopoly Big Event brings classic board game fun to the reels. It returns 96% in standard play, and 99% only when you play the Big Bet.

The game combines bonus rounds, wilds and the Big Bet feature with medium volatility and the chance to multiply your stake by up to 500x.

Jackpot 6000, another NetEnt classic, works in a similar way to Mega Joker. It passes 98% only in Supermeter mode, peaking at 98.86%, while the basic game pays back less.

Alongside the Supermeter, it offers a Heads or Tails double-up gamble and a maximum win of 6,000x your bet.

1429 Uncharted Seas from Thunderkick is a nautical-themed slot, and its 98.6% return places it among the highest-paying modern video slots we have seen.

That generous figure is also why some operators leave it out of bonus wagering, so read the offer terms before you count on it.

Marching Legions, developed by Relax Gaming, takes players into ancient warfare with a 98.12% RTP and high volatility.

Marching Respins, Nudges and Free Spins add depth to each round, and the top prize stands at 10,000x your initial stake.

Money Train 2 by Relax Gaming returns 96.4% in the base game, rising to about 98% only when you purchase the feature.

It is a high-volatility slot built around its Respins feature and the Money Cart Bonus Round, with wins that can reach 50,000x your stake.

Blood Suckers from NetEnt is a vampire-themed favourite with a 98% RTP and low to medium volatility, which gives it a steady rhythm of frequent, modest wins.

It features two bonus rounds, and while its maximum win of 1,014x your bet is modest by modern standards, the consistent returns and atmospheric gameplay make it a popular pick, especially for players clearing bonus wagering.

Jokerizer from Yggdrasil is a fruit-machine-style slot with a 98% RTP, giving classic-slot fans a high-return option from a modern studio.

Its simple layout keeps the focus on the base game, making it an easy choice for players who prefer straightforward slots over feature-heavy releases.

⚠️ What to Watch For

A high RTP is a good starting point, but it is not the whole story. Several things can change what you actually get back.

• Special modes and bets: some headline figures depend on a specific mode, bet or purchase, as with Mega Joker, Jackpot 6000, Monopoly Big Event and Money Train 2.
• Different RTP versions: the same slot can pay less at one site than at another, so look up the number before you play.
• Volatility: two games sharing a return can feel completely different, depending on how often wins land and how large they are.
• Bonus exclusions: operators often block their best-paying slots from counting towards wagering, so check before you rely on one to clear an offer.

🌟 VistaGamble's Honest Assessment

We think high RTP slots offer genuinely better long-run value, but the headline numbers need reading carefully. Here is where they shine and where they fall short.

➕ The Positives

• A smaller house edge: the best of these slots keep only around 1% of what is wagered over the long run.
• A choice of styles: our list covers classic fruit machines, Book-style games and high-volatility modern releases.
• Useful for bonus play: where they count towards wagering, a high return makes clearing a bonus cheaper.

➖ The Negatives

• Conditions on the top figures: several of the biggest returns need a special mode, a specific bet or a bonus buy.
• Versions vary by casino: the number quoted in a review is not always the one your site offers.
• Often excluded from bonuses: generous slots are frequently left off the list of games that count towards wagering.

🔒 Conclusion

High RTP slots give you more for your money over the long run, and we rate the titles on this list as some of the best value in online slots. Just remember that a few of the biggest figures come with conditions, and that your casino's version may differ.

Check the return, look at the volatility and pick the slot that suits the way you play. Want to try them first? Explore our demo slots and play any of these games for free!

Frequently Asked Questions❓

What is the best-paying slot on this list?

Ugga Bugga leads at 99.07%. Book of 99 comes a close second at 99%, and it reaches that figure without any special mode.

Why does Mega Joker only reach 99% sometimes?

The 99% figure applies in Supermeter mode at the highest Supermeter stake. In the basic game, the return is lower.

Does buying the bonus raise the RTP?

It can. Money Train 2, for example, pays back about 98% with the bonus buy, compared with 96.4% in normal play.

What counts as a high RTP?

For online slots, we treat anything over 96% as a strong return. Titles at 98% or more are hard to find.

Does a high RTP guarantee a win?

No. The figure is measured over millions of spins, so a single session can land far from it in either direction.

Can the same slot have a different RTP at different casinos?

Yes. Many slots come in several versions, and each operator decides which to run, so check the help menu before you spin.