RTP stands for “Return to Player” and expresses the percentage of money wagered that a player can expect to get back from a slot or other casino game. It is the inverse of the “house edge” – which represents the percentage of money the casino can expect to retain from wagers.
It’s important to understand that RTP is an average calculated from millions of test rounds. So, it’s unlikely that you will personally experience the official RTP when you play a game for a few dozen, or even a few hundred spins. Still, playing slots and other games with high RTP rates can, theoretically, provide you with better winning odds over time.
On this page, we’ll review some of the highest RTP slots and look at things like maximum payouts, hit frequency and volatility. This knowledge will help you choose the games that suit your play style best, and enable you to get more from online casinos.
Best RTP Slots to Play
While most slots tend to have RTPs of around 95-96%, some offer considerably higher rates. Below are some of the best RTP slots currently available.
| Slot Game | RTP (%) | Software Provider | Volatility | Max Win |
| Mega Joker | 99.00 | NetEnt | High | 2,000x |
| Book of 99 | 99.00 | Relax Gaming | High | 12,075x |
| Jackpot 6000 | 98.90 | NetEnt | High | 6,000x |
| 1429 Uncharted Seas | 98.60 | Thunderkick | Low | 670x |
| Marching Legions | 98.12 | Relax Gaming | High | 10,000x |
| Money Cart 2 Bonus Reels | 98.00 | Relax Gaming | High | 5,000x |
| Blood Suckers | 98.00 | NetEnt | Low | 900x |
| Starmania | 97.87 | NextGen Gaming | Low | 500x |
| Zeus Lightning: Power Reels | 97.73 | Red Tiger | High | 5,037x |
| Big Bad Wolf | 97.34 | Quickspin | High | 1,225x |
| Cowboy Coins | 96.98 | Pragmatic Play | Medium-High | 30,000x |
| Jack Hammer | 96.96 | NetEnt | Low-Medium | 1,000x |
Do note that high RTP games are often specifically excluded from casino bonuses.
1. Mega Joker: 99.00% RTP
This 9-reel, 5-payline progressive jackpot was released by NetEnt in 2013 and has remained popular ever since. Visually, it takes the form of an old-school cabinet fruit machine – like the ones you used to find in your local pub.
If you win while betting with 10 coins and all paylines active in the base game, you get the option to move your winnings to the Supermeter. If you do, can place bets of up to 200 coins per spin. But, what really makes Mega Joker so popular is its randomly triggered progressive jackpot – indeed, it’s one of our all-time favourite jackpot slots.
Where to play Mega Joker: BetMGM, Party Casino, Voodoo Dreams
2. Book of 99: 99.00% RTP
Relax Gaming released the appropriately named Book of 99 in May 2021 as one of its highest RTP slots. A 5×3 reel slot with just 10 fixed paylines, Book of 99 has an ancient Greek mythology visual theme and features four high-paying characters including a Cyclops. Like other book games, your goal is to collect books, in this case, 99, and when 3 or more books land on the reels you’ll trigger Free Spins. Free Spins triggered in this manner feature expanding symbols.
Free Spins will also be triggered when you’ve collected 99 book symbols – and in this case, the bet amount will be your average placed throughout the gameplay thus far. Overall, Book of 99 will appeal to those who like collecting games and it can deliver impressive wins, but it is highly volatile, and there are no other special features, so you’ll need patience.
Where to play Book of 99: BetMGM
3. Jackpot 6000: 98.90% RTP
This NetEnt slot quickly became a hit after its release in late 2014. With its classic 3-reel, 3-row, 5-payline format Jackpot 6000 harks back to the days of pub and arcade-based fruit machines. The reels feature symbols like stars, bells, grapes and cherries, and a joker acts as a Wild.
The main special feature is an ooptionally activated Supermeter which doubles the maximum wager amount from 10 to 20 coins and wagers the money won in the previous round – a process that can repeat until the Supermeter fills to 6,000 and pays out the collected winnings. There’s also a Heads or Tails Double Up Gamble option. Overall, Jackpot 6000 is a simple but fun digital recreation of a classic 80s or 90s fruit machine cabinet game.
Where to play Jackpot 6000: BetMGM, LeoVegas
4. 1429 Uncharted Seas: 98.60% RTP
Set in the age of exploration when what lay beyond the horizon remained a mystery, 1429 Uncharted Seas was released by Thunderkick in 2016. This 5-reel, 3-row slot has 25 paylines and features low volatility – so although the maximum win is only 670x your bet, you can expect a decent number of lower wins.
15th-century-style maps and graphics, complete with the obligatory sea monsters, add an authentic period feel to the game, and features like expanding Wilds, Scatters and Free Spins add at least a few fathoms of depth (forgive the pun).
Where to play 1429 Uncharted Seas: BetMGM
5. Marching Legions: 98.12% RTP
Since being released in mid-2020, Marching Legions has become one of Relax Gaming’s most popular slots – in no small part due to its very impressive RTP. The game is set at the camp of an ancient Roman Legion, but unlike most similarly themed games, it has cartoon-style graphics which makes a nice change.
There are features like nudges, Matching Respins and Free Spins (triggered via a collect meter), but as this is a highly volatile slot, much of the time is spent watching pretty dull spins. Still, the 10,000x win potential and high RTP, mean it can be worth sticking with it.
Where to play Marching Legions: BetMGM, LeoVegas, Duelz
6. Money Cart 2 Bonus Reels: 98.00% RTP
Relax Gaming debuted Money Cart 2 Bonus Reels in the summer of 2021, as the latest instalment of its hugely successful steampunk-styled Western series. This slot is highly volatile, so you’ll need to hold your nerve, but when they come the wins can be worth it.
The game is packed with special symbols including a Collector, Persistent Collector, Payer, Persistent Payer, Collector/Payer, Sniper, Persistent Sniper, Necromancer, and Reset Plus – all of which have cash values or special roles. There isn’t enough space to get into more detail here, but let’s just say this slot has a lot of depth!
Where to play Money Cart 2 Bonus Reels: BetMGM, LeoVegas
7. Blood Suckers: 98.00% RTP
Released all the way back in 2009, Blood Suckers has been a huge hit for NetEnt ever since – riding the vampire frenzy started by the first Twilight movie in 2008. A 5-reel, 3-row slot with 25 fixed paylines, Blood Suckers has long been appreciated for its high RTP.
Notably, the game boasts a bonus round where you shove wooden stakes through the hearts of sleeping vampires, along with Scatter multipliers, and re-triggerable Free Spins. Sure, the graphics are getting dated, but Blood Suckers is still well worth a spin or two.
Where to play Blood Suckers: BetMGM, Party Casino, Duelz
8. Starmania: 97.87% RTP
Clearly taking inspiration from NetEnt’s classic Starburst, NextGen Gaming released Starmania in 2015, and it’s since gone on to be one of the studio’s biggest hits. This 5×3 reel video slot has only 10 fixed paylines and a relatively low maximum win of 500x your bet.
But, it does feature low volatility, and has an exceptionally high RTP, so you can expect plenty of smaller wins. A simple game, the main feature is a Free Spins round, that can be retriggered. If you like Starburst, you’ll like Starmania.
Where to play Starmania: Duelz, 888casino
9. Zeus Lightning Power Reels: 97.73% RTP
Released by Red Tiger in April 2023, Zeus Lightning Power Reels takes the popular ancient Greek gods theme, throws in some of the studio’s Megaways-inspired Power Reels mechanics, and delivers a very polished and deep slot.
There are 7 reels, 6 rows and 30 paylines, and the headline feature is Zeus’ Expanding Lightning which can cover reels and even the entire grid. There’s also a Free Spins round triggered by 3 Scatters, plus a gamble option. While the theme is nothing new, the mechanics work well, and the graphics are to the high standard we’ve come to expect from Red Tiger.
Where to play Zeus Lightning Power Reels: BetMGM, LeoVegas
10. Big Bad Wolf: 97.29% RTP
Quickspin’s take on a classic story, the EGR-award-winning Big Bad Wolf sees the three little pigs hiding in their house, hoping the big bad wolf won’t huff and puff enough. Despite being released back in 2013, this 25-payline, 5-reel slot is still one of the best slots to play anywhere.
Special features include Wilds, Free Spins, multipliers and Pigs Go Wild. The bonus game is especially fun, with the wolf blowing down the house, and the three little pigs scampering off to a new, stronger house – only to get carried away in sacks by the wolf (don’t worry, they escape again).
Where to play Big Bad Wolf: Party Casino, LeoVegas
11. Cowboy Coins: 96.98% RTP
A Wild West-themed slot with an unusual 3-4-4-4-4-3 format game grid, Cowboy Coins is one of Pragmatic Play’s best slots to play in terms of RTP. The game features scatters, money coins, payer symbols, and collector symbols.
Though rated as ‘medium’ volatility, we think it’s more on the high side in reality. As you’d expect from a Pragmatic Play slot, the graphics and sound are crisp and detailed.
Where to play Cowboy Coins: BetMGM, Duelz, LeoVegas
12. Jack Hammer: 96.96% RTP
This 5-reel 25-payline 1950s comic-style slot was released by NetEnt back in 2011, but its retro styling means it doesn’t really age. Land 5 or more ticking bomb symbols to activate free spins, during which wins pay 3x normal.
There’s also a Wild symbol and a Sticky Win symbol which holds reels with winning symbols while the rest re-spin. Rated somewhere between medium and low volatility, this slot delivers a pretty regular hit frequency.
Where to play Jack Hammer: Party Casino, Duelz,
Highest Payout (Max Win) Slots
| Slot Game | Max Win | Software Provider | Volatility | RTP(%) |
| Starburst XXXtreme | 200,000x | NetEnt | High | 96.26 |
| Peking Luck | 180,000x | Pragmatic Play | High | 96.50 |
| San Quentin xWays | 150,000x | NoLimit City | Extreme | 96.03 |
| Max Megaways 2 | 147,620x | Big Time Gaming | High | 96.64 |
| Dead or Alive 2 | 111,111x | NetEnt | High | 96.82 |
| Rome The Golden Age | 100,000x | NetEnt | High | 96.06 |
| Money Train 3 | 100,000x | Relax Gaming | High | 96.10 |
1. Starburst XXXtreme: 200,000x Max Win
Released in July 2021, Starburst XXXtreme is the long-awaited sequel to NetEnt’s all-time classic Starburst. However, while they may be related visually, Starburst XXXtreme is an entirely different beast. Whereas Starburst’s success was built around low volatility and lots of free spins, this sequel is a highly volatile game that can deliver some of the highest payouts ever seen at 200,000x your bet.
Like the original Starburst, Wilds play a central role in this slot. Specifically, there are two types, random and regular. They can appear on the middle 3 reels and can expand to cover entire reels – in which case they remain locked for the next spin. Random Wilds are activated after Respins and can deliver multipliers worth from x2 to x150. During randomly triggered XXXtreme Spins you’ll get guaranteed Wilds.
Where to play Starburst XXXtreme: BetMGM, Duelz, Voodoo Dreams
2. Peking Luck: 180,000x Max Win
Debuting in the summer of 2018, Pragmatic Play’s Peking Luck is a 5-reel, 25-payline slot with an Oriental theme – you know, Chinese lanterns, fans, that kind of thing. But, don’t let the calming visuals lull you into complacency – this slot is highly volatile.
Feature-wise, Peking Luck has Wilds on every reel that substitutes for every other symbol and doubles winnings. Plus, the Wild can be stacked, allowing the possibility of a full screen of them, which would pay 10,000x your wager. Free Spins can also be triggered by landing 3 or more Scatters (the gong symbol). Before you start your Free Spins, you will be asked to choose a fan to set the number of spins, and a dragon to set your multiplier – and the 2x multiplier from the base game wild will still apply too. When it’s all added up you can win up to 180,000x your stake on a single spin.
Where to play Peking Luck: BetMGM, Party Casino, LeoVegas
3. San Quentin xWays: 150,000x Max Win
NoLimit City released this gritty and highly anticipated slot in January 2021, and it didn’t disappoint. Set in the infamous American high-security prison, San Quentin xWays is extremely volatile meaning playing it can sometimes feel like you’re serving a long stretch. Although hit frequency isn’t too bad at 34.25%, the vast majority of wins will be very low.
However, if you can survive the harsh realities of the penitentiary for long enough, things will get exciting. They are locked Enhancer Cells, which when triggered will reveal a surprise. These can be Wilds, Razor Splits – which double all symbols on the reel – or xWay symbols which serve stacked pay symbols. But, the highlight of your prison career at San Quentin will be the Lockdown Spins. These are triggered by landing 3 or more Scatters (the guard tower), and feature Jumping Wilds and extra multipliers – courtesy of various convicts.
Where to play San Quentin xWays: BetMGM, Voodoo Dreams, 888casino
4. Max Megaways 2: 147,620x Max Win
BTG released the sequel to the hugely successful Max Megaways in July 2019, and it quickly became a favourite for players looking for big wins. In this James-bond-inspired game, Max we see Max battle the bad guys in space, rather than the supervillain’s volcanic lair seen in the original slot. The RTP of this sequel is higher than the first Max Win slot, and the maximum win is impressive – but, you’ll need nerves of steel because it is highly volatile.
The slot features 6 regular reels and a special extra reel along the top with 4 symbols. This allows for an incredible 117,649 ways to win. Winning symbols are removed by a reaction of some sort, and replaced with more until the winning streak ends. The base game allows for various modifiers on each spin (or reaction), and landing 3 or more Scatters triggers the Free Spins round, which also has various bonuses attached.
Where to play Max Megaways 2: BetMGM, Voodoo Dreams, Duelz
5. Dead or Alive 2: 111,111x Max Win
Another popular sequel, Dead or Alive 2 was released in April 2019 by NetEnt and quickly shot up the slot charts. And, talking of shooting, that’s what it’s all about. This 5-reel, 9-pay line slot is set in the Wild West and centres around a showdown on the main street of a very bad town.
As you’d expect, the graphics are much sharper and more atmospheric than the original Dead or Alive slot, and there are a bunch of new features too. Land 3 or more Scatters to trigger the Free Spins, and you’ll get a choice of three different games: Train Heist, Old Saloon, and High Noon – each of which has unique traits. But, it’s by choosing High Noon that you’ll open the possibility to win 111,111x your stake.
Where to play Dead or Alive 2: BetMGM, Paddy Power Games, Party Casino
6. Rome The Golden Age: 100,000x Max Win
Ancient Rome has been a favourite theme of online slots for many years, but Rome The Golden Age stands out as one of the best payout slots ever. NetEnt released the game in early 2021, and it proved to be an instant hit with players. Of course, this is partly down to the massive max win, but also due to its polished graphics and unusual details – like its 5 reels arranged in a unique diamond formation.
Features include an interesting frame mechanism – it’s too complicated to explain in detail here, but let’s just say it can lead to an awful lot of wilds on the reels. Plus, Free Spins are a big feature in this slot. A progress bar mechanism means a multiplier for Free Spins rounds will grow the more you play. This will be applied to the next Free Spins round triggered and can ultimately lead to a potential 2,000x multiplier on Free Spins wins.
Where to play Rome The Golden Age: BetMGM, LeoVegas
7. Money Train 3: 100,000x Max Win
Turning the Money Train series into a trilogy, Money Train 3 was released by Relax Gaming in September 2022 – and has proven every bit as popular as its predecessors. Though it maintains the gritty Western theme, this instalment moves the story further into the future, with a touch of cyberpunk.
Landing 3 bonus symbols in the base game triggers the bonus round, with triggering symbols turning sticky and adding another 3 respins. Again, there are the various collector, sniper, payer, and necromancer-type symbols seen in the other Money Train and Money Cart titles, along with Tommy gun and shapeshifter symbols. All these symbols apply unique bonuses, ranging from multiplying values and triggering respins to resurrecting non-persistent special symbols.
Where to play Money Train 3: BetMGM, LeoVegas, Duelz
How to Find Slots with the Highest RTP
Finding the best slots to play with high RTPs isn’t always easy. Some online casinos display the RTP on game thumbnails, and others have search filters available. Of course, the easiest way to find recommendations for the best slots to play online is to read guides like this.
Where to Find the RTP and Payout of a Slot
All slot games offered at UKGC-licensed online casinos will have full game information, including detailed paytables available. You can find these by opening a specific game and clicking on the information tab – usually a small “i” in one of the corners of the game interface.
RTP Variations for the Same Slot
While most slots have a single RTP, occasionally a game studio will offer casino operators a choice of RTPs. For example, Quickspin has made two versions of Big Bad Wolf – one with a 97% RTP and one with a 90% RTP. In the UK, the higher RTP version is more common, but it is good to be aware of this – and it also explains why you’ll often find different RTPs quoted on different review sites.
Note: RTPs Can Change
Although there’s an awful lot of debate over this topic on Reddit and other public forums, you should always be aware that slot RTPs can change. Of course, stated RTPs have to be in line with the provider’s official RTP at any given point. But, slot studios do sometimes overhaul games, tweak them and release new versions.
FAQs
What is the difference between high RTP and low RTP slots?
High RTP slots are more likely to, on average, over a very long period, return more money to a player than low RTP slots.
Can RTP affect your chances of winning on slot machines?
Theoretically, yes. But, this is when considering a huge number of spins (millions).
Do progressive jackpots affect a slot’s RTP?
As a rule, you’ll find that progressive jackpots, like the Mega Moolah series, have a significantly lower RTP.
Is there a difference between online and land-based slot RTP?
Sometimes. For example, it is well-known that in some jurisdictions (especially in the US), land-based casino operators sometimes alter the RTPs of gaming machines.
Do high RTP slots guarantee a win?
Absolutely not. Over the number of rounds a real person is likely to play, it is perfectly possible that you won’t notice the difference in terms of winning.
Do all high RTP slots have high volatility?
Nope. While high RTP slots do tend to have higher volatility, it is possible to find many with low volatility, for example, 1429 Uncharted Seas, Blood Suckers, and Starmania.
Can you calculate the RTP yourself?
No. Because to work it out you would have to know the total turnover and wins for everyone playing the game. You only have access to your wagering and wins.
Are new slots likely to have higher RTP than older games?
There is a trend towards slots with higher RTPs. This is because, as more players become aware of RTP, it has become more of a selling point. However, most are still around the 95-96% mark.

