When it comes to winning at slots, one factor matters more than luck alone — Return to Player (RTP%). RTP represents the percentage of all wagered money a slot game is expected to pay back to players over time. For example, a slot with an RTP of 96% theoretically returns $96 for every $100 wagered in the long run.
The higher the RTP, the greater your chances of steady returns. Games with RTP values between 96% and 99% are generally considered the best-performing and most player-friendly. Many modern developers, such as Relax Gaming, Pragmatic Play, and Yggdrasil, design slots with exceptionally high RTP rates that stand out from the competition.
While finding these high-paying titles can sometimes be tricky — since some casinos hide or adjust their RTP settings — knowing where to look makes all the difference. Our carefully curated list of high-RTP slots highlights the most rewarding games available today, ensuring you always play where your odds work in your favor.
In short, choosing slots with high RTP is the smartest long-term strategy. It doesn’t guarantee instant wins, but it increases your potential for consistent, sustainable success every time you spin.
1) Book of 99 (Relax Gaming)
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RTP: 99.00 %
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Max Win: 12 075×
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Release Date: May 4 2021
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Notes: Modern high-RTP “book” slot; among the highest returns ever released.
Book of 99 stands out with a unique collection mechanic — each time a wild symbol lands, it fills a special meter. Once the meter reaches 99 wilds, the feature triggers Free Spins, perfectly tying into the slot’s name. This innovative system adds both anticipation and progression to the gameplay.
Beyond its thematic brilliance, the game offers remarkable winning potential, with payouts of up to 12 075× your stake. Combined with a record-high 99 % RTP, Book of 99 is one of the most mathematically generous online slots available, rewarding patient play with both excitement and exceptional long-term value.
Ugga Bugga (Playtech)
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RTP: 99.07 %
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Max Win: ≈ 1 000×
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Release Date: 2006
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Notes: Unique hold-feature slot; historically one of the highest RTPs.
With an extraordinary RTP of 99.07%, Ugga Bugga remains one of the highest-paying slot games ever created. Released in 2006, this Playtech classic features a distinctive hold-and-spin mechanic, allowing players to lock symbols and strategically improve winning combinations. Its simple gameplay, paired with exceptional payout potential, makes it a legendary choice for players seeking maximum long-term returns.
3) Mega Joker (NetEnt)
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RTP: Up to 99.00 %
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Max Win: ≈ 2 000×
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Release Date: 2011
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Notes: RTP 99 % possible only in Supermeter optimal play.
Renowned for its exceptional RTP of up to 99%, Mega Joker is one of the most rewarding classic slots ever made. Released in 2011, it features the iconic Supermeter mode, where skilled play unlocks the game’s full payout potential. Simple yet powerful, it remains a top choice for players seeking maximum long-term returns.
4) 1429 Uncharted Seas (Thunderkick)
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RTP: 98.60 %
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Max Win: ≈ 670×
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Release Date: May 2014
Thunderkick's video slot, boasting 25 active paylines and an impressive 98.6% RTP, stands as one of the best-paying slots. The game offers extra thrills with features like expanding wilds and bonus games. In the bonus game, landing compass scatter symbols can unlock substantial rewards, ranging from 10 to an impressive 100 free spins, enhancing the excitement for players. Additionally, with a max bet, players have the opportunity to secure wins reaching up to 670x their initial stake, adding substantial potential for lucrative returns in this Thunderkick video slot.
5) Marching Legions (Relax Gaming)
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RTP: ≈ 98.12 %
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Max Win: ≈ 10 347×
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Release Date: July 2020
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Notes: One of Relax Gaming’s highest-return titles.
6) Money Cart (Relax Gaming)
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RTP: ≈ 98.00 %
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Max Win: ≈ 10 000×
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Release Date: 2020
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Notes: Bonus-round spin-off of Money Train.
With an impressive RTP of around 98%, Money Cart delivers one of the most generous payout rates in modern gaming. Released in 2020 as a bonus-round spin-off of Money Train, it focuses entirely on high-volatility feature action and substantial winning potential, reaching up to 10,000× your stake.
7) Money Cart 2 (Relax Gaming)
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RTP: ≈ 98.00 %
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Max Win: ≈ 10 000×
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Release Date: 2021
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Notes: Continuation of the Bonus Reels series.
Featuring an impressive RTP of around 98%, Money Cart 2 continues Relax Gaming’s high-return legacy. Released in 2021, this fast-paced sequel amplifies the bonus reel action, offering explosive wins of up to 10,000× your stake and maintaining one of the most rewarding payout rates in online slots.
8) Jokerizer (Yggdrasil)
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RTP: 98.00 %
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Max Win: ≈ 6 000×
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Release Date: 2016
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Notes: Features the special Jokerizer Mode.
With a strong RTP of 98%, Jokerizer is one of Yggdrasil’s most rewarding classic-style slots. Released in 2016, it combines vibrant visuals with the exciting Jokerizer Mode, offering enhanced win potential and a perfect balance of simplicity and high long-term returns.
9) The Dog House – (Pragmatic Play)
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RTP: 98.02 %
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Max Win: ≈ 10 000×
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Release Date: November 2024
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Notes: Enhanced RTP edition of the Dog House series.
With an outstanding RTP of 98.02%, this enhanced version of The Dog House offers one of the highest payout rates among modern Pragmatic Play slots. Released in November 2024, it retains the fun, feature-packed gameplay of the original while boosting long-term returns and win potential up to 10,000× your stake.
10) Thunder vs Underworld (Pragmatic Play)
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RTP: 98.04 %
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Max Win: up to 15 000×
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Release Date: October 2024
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Notes: High-volatility title with Norse vs Greek theme.
Boasting an impressive RTP of 98.04%, Thunder vs Underworld stands out as one of Pragmatic Play’s most rewarding releases. Launched in October 2024, this high-volatility slot merges a gripping Norse vs Greek mythology theme with the potential for massive wins reaching up to 15,000× your stake.
Ultimately, RTP is your best guide to long-term success. Choose trusted developers, high-return slots, and licensed casinos — and let the math work in your favor every time you spin.
