The Highest RTP Online Slots for Big Wins

Author: Olivia Brown | Edited By: Ethan Parker

Last Updated: January 7, 2025

The online slots with the highest payout have a high return-to-player (RTP) percentage. Consider playing the following best-rated slot games with the highest RTP.

The 10 Best Payout Online Slots

1. 1429 Uncharted Seas by Thunderkick

The 1429 Uncharted Seas is a beautiful video slot game from Thunderkick software provider. It sports a pirate theme, five reels, and 25 paylines. It boasts 670 x stake wins and an RTP of 98.6%, making it one of the highest-paying online slots.

If you manage to get the high-paying mermaid symbol with or without wilds, you will snap up a massive payout of 1250x your stake. The 1429 Uncharted Seas is a visually stunning video slot with a unique combination of low volatility and a great choice of features to help you get the most out of the 98.5% payback percentage.

2. Blood Suckers by NetEnt

With an RTP of around 98%, NetEnt’s Blood Suckers is a trendy online slot with a high payout percentage and an equally high hit frequency of 44.9%. It features a vampire theme, 25 paylines, and standard 5 reels.

The slot’s betting range is as high as the payback percentage. You can spin the reels of Blood Suckers for as little as $0.10 on your desktop PC, iPad, tablet, Android, or iPhone. The most lucrative extra feature is the Vampire Slaying bonus game, where you can gather from coffins to win cash prizes. Find the free Spins feature and take advantage of the 3x multiplier.

The maximum payout is 1,014.6 x your bet amount when you play the free spins feature. Although it is not one of the provider’s progressive jackpot slots, Blood Suckers provide decent wins.

3. Book of 99 by Relax Gaming

With a return to player (RTP) percentage of roughly 99%, Relax Gaming’s Book of 99 is the online slot with the highest payout out there. The video slot game has an ancient Greek theme, 10 paylines, and 5 standard paylines. The most notable features include the Free Spins feature, unlimited triggers, and 5,000 stake wins.

It gives the casino a paltry 1% mathematical advantage, meaning the rest goes back to the play in the form of payouts. Moreover, the slot game is packed with additional features that are bound to increase your chances of winning, including an exciting bonus game where you can gather wild symbols and trigger scatters.

4. Golden Tour by Playtech

If you’re looking for an online slot with a high payout, simple gameplay, and lots of multipliers, then you should try Playtech’s Golden Tour. It has a 97.71% RTP, 5 paylines, and 5 reels set on a golf theme.

This golf-themed video slot is not only beginner-friendly but also ideal for casual players with lean budgets and small bankrolls. You can spin the reels for as little as 5 cents across both mobile and desktop platforms.

The straightforward gameplay ushers players into the world of the Golden Tour bonus game, where they can choose a putter, iron, and driver for a chance to win great cash prizes. With a max win of 2,000x, your bet amounts to a spin. This slot game has gained an immense following because of its exciting gameplay and high payout percentage.

5. Jokerizer by Yggdrasil Gaming

Yggdrasil Gaming is among the industry leaders in producing high-payout video slots with exciting features and gorgeous graphics. Jokerizer is the brand’s most recognized and beloved online slot machine.

With an RTP of 98%, Yggdrasil Gaming’s Jokerizer is the highest-paying classic fruit online slot machine we have ever seen. It boasts excellent gameplay, 10 paylines, and Jokerizer Mode, which pays up to 600 times your stake. You can spin the reels for just 10 cents.

Despite having a vintage theme, this slot is sleek and exudes contemporary design elements, including HD cinematic graphics and superb animations. Unfortunately, it doesn’t have a Free Spins feature, but it makes up for this shortcoming with an outstanding bonus game. Known as the Mystery Win, the bonus round is triggered when you land three or more Joker symbols on the reels, allowing you to win up to 6,000 times your stake.

6. Marching Legions by Relaxing Gaming

The top gaming developer Relax Gaming is well-known for publishing slots with high payouts for online casinos. Marching Legions is its second-highest-paying slot game after Book of 99. Unlike the latter, the slot has 243 paylines, re-spins, a max payout of up to 7,458 x stake, and stacked scatters. It also has 5 reels and one of the most solid online casino payouts of 98.12%.

If you’re lucky enough to collect some horns, you can boost your payout further and earn up to 10,000x your stake.

7. Reel Gems by Microgaming

With an RTP of 97.49%, Microgaming’s Reel Gems was first published in 2010. The online slot has 5 reels, 243 paylines, and plenty of special features, including free spins, multipliers, and a Respin feature. There is plenty to love and adore about Reel Gems, which may explain why it has consistently gained popularity since the early naughts.

We’re talking about gorgeous opals, sapphires, emeralds, rubies, and diamonds, which can generate lucrative rewards. Noteworthy features include the ability to re-trigger the free spin game.

This slot game has a pretty decent payout percentage, which goes well with its low variance. If you activate the bonus game, you will receive 15 free spins, and all your payouts will be tripled to boot. In fact, the final payout after the bonus game can go as high as 120,000 times your stake.

8. Starmania by NextGen Gaming

This top-tier developer is well-known for slots like Foxin Wins and 300 Shields. But these veteran slots cannot come close to Starmania when it comes to payouts.

First published in 2015, NextGen Gaming’s Starmania has an RTP of 97.87% and 10 paylines found across 5 reels. Stacked wilds and Free Spins feature with up to 20 free spins on offer are some of the highlights of the slot game.

The galaxy-themed slot offers a Free Games feature where players can garner up to 20 bonus spins. They can also enjoy 30 additional wilds on the three reels in the center of the screen. You can spin the reels starting with 10 cents. Other feature highlights include a max win of up to 1000x your bet amount per free spin or real money spin.

9. White Rabbit Megaways by BTG

Big Time Gaming’s White Rabbit Megaways has an RTP of 97.77% and five reels that offer up to 248,832 paylines. With a theme based on Alice in Wonderland, it has multipliers, free spins feature, and bonus wilds.

Aside from providing up to 248,832 ways to bet on the expanded reels, BTG’s The White Rabbit Megaways is the only mega-ways online slot machine with an RTP higher than 97%. It offers a decent list of special features, including the Cupcake wild symbol, Caterpillar Wilds feature, Feature Drop feature, Down the Rabbit Hole Free Spins feature, Extending Reels feature, etc.

A reel extension feature expands the grid to 12 rows high, boosting win ways and resulting in wins of up to 13,000x your stake with a max bet.

10. Zeus Lightning: Power Reels by Red Tiger Gaming

With an RTP of 97.73%, Red Tiger Gaming’s Zeus Lightning: Power Reels slot has 30 paylines played on a 6×7 grid. Free Spins, stacked wilds, and an awesome ancient Greek theme make it a great online slot.

Note that there are other online slots with a high payout, but their RTPs usually vary from one casino to the next. Typical examples are Barcrest’s Red Hot Wild and Wild Times, both of which have a base RTP of 98%.

What are the Luckiest Slot Machines?

The RNGs ensure all slot machine outcomes are unpredictable and random. But, for some reason, a few slot games seem lucky and often hit the largest payouts, while the rest haven’t paid a jackpot in years. Even if a slot machine appears to be lucky, you must rely on your skills, knowledge, and intuition to win big.

Here are the five luckiest slot machines of all time:

Kings of Chicago

Kings of Chicago ushers you into the world of underground poker, speakeasy bars, and mobsters. NetEnt also powers this vintage mob-inspired, speakeasy-themed slot game.

This slot has just five paylines and traditional five reels with an RTP of 97.8%.

It has a Free Spins feature, jokers that serve as payouts, and a stunning design. A 2x multiplier boost is applied to all your wins during the free spins game. You can play this masterpiece on desktop or mobile from just 5 cents up to $50 a spin. Your knowledge and skills might land you a max win of 13,000x your stake.

Devil’s Delight

When NetEnt launched Devil’s Delight around a decade ago, it took over the online slot scene by storm and hasn’t slowed down ever since. A high RTP of 97.6%, outstanding graphics, and beautiful animations with a generous sprinkling of luck have made it one of the most popular online slots in recent years.

You will thoroughly enjoy exploring the 20 adjustable pay lines spread over 4 rows and 5 reels. The Zombie theme has a reasonably ghoulish yet spooky ambiance. The beautiful background certainly sets the right mood for the Free Spins and Bonus games.

Mega Moolah

Mega Moolah is the luckiest progressive jackpot slot with an enchanting Africa Safari theme. This Microgaming masterpiece has five reels and 25 paylines spread over the grid. The slot has scatters, a Free Spins feature with a 3x multiplier and 30 free spins, and wilds serve as payouts.

Special features aside, Mega Moolah is all about the four massive progressive jackpots. It was then a record-breaker. The biggest of the jackpots, dubbed the mega jackpot, currently stands a well over $5.3 million. In 2015, the progressive slot paid out a whopping €13.2 million to Jonathan Heywood of the UK.

Ugga Bugga

There is something about Ugga Bugga that appeals to beginner and seasoned slot players year after year. It may be the enormous payout percentage of 99.07%. Or, the video poker-like mechanic makes it easy to land winning combinations on the reels. No matter the reason, the 10-payline slot machine is one of the luckiest out there.

Which Online Slots have the Highest RTP?