The best payout slots consider the return-to-player percentage (RTP), the maximum payout, and whether there are fixed or progressive jackpots up for grabs.
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What are the best payout slots?
When we talk about the best payout slots, we’re referring to slot games that excel in key areas that impact your outcomes. It might be the highest return to player (RTP), the biggest max win multiplier, the most consistent sessions, or a combination of these factors.
High RTP means better long-term returns. We use 96% as the benchmark, and anything over this offers decent long-term winning potential.
Remember to check the game info, paying close attention to the RTP offered at your casino, as even the same slot game can vary between sites.
Another consideration is that the highest-paying slot machines are usually progressive jackpot slots, which sacrifice base-level RTP to fund those elusive prizes.
So, if you’re playing for big bucks, you may have to choose lower RTP slots to account for the progressive prize, which could be worth hundreds of thousands or millions of pounds.
In other words, you may need to find a happy compromise.
The Importance of RTP (Return to Player)
Why is RTP so important? And why are the highest RTP slots considered some of the best gambling machines on the market?
The RTP, or return to player, is the theoretical percentage of all wagers on a slot machine that will be returned to players over extended gameplay, usually, over the course of millions of spins. For example, if a game’s RTP is 96%, it will pay out an average of £96 for every £100 wagered.
This means that, in theory, higher RTP delivers better long-term value. And so prioritising higher RTP slots will help to stretch your bankroll further.
It’s also worth noting that RTP differs from a game’s volatility. Volatility drives short-term swings: high volatility for rare, large wins, and low volatility for frequent, smaller ones. But it does not impact RTP, which only reveals itself over extended play.
We consider anything over 96% RTP to be high.
Top 10 best payout slot machines
To get you started on your quest to find the best payout slots, we’ve compiled this list of top payout slot machines that are always super popular with players.
These games offer the perfect balance of engagement and win potential to give you the best gaming experience as you spin for those big wins.
1. Tombstone Slaughter: El Gordo’s Revenge | Nolimit City
Max win multiplier: 500,000x
RTP: 96.01%
Rating: ⭐️⭐️⭐️⭐️⭐️
Part of Nolimit City’s western-themed Tombstone line-up, Tombstone Slaughter: El Gordo’s Revenge uses a six-reel layout in a 2-3-3-3-3-2 configuration, offering 324 ways to win.
The game has all the hallmarks of the developer’s signature high-octane, feature-rich gameplay and offers a staggering 500,000x max win potential.
The maths model is incredibly volatile, and as you would expect from a Nolimit game, the title is packed with features to enhance your experience as you seek out that impressive prize.
Expect explosive gameplay with level-up mechanics, high multipliers, and multi-layered bonus games with an xRIP bonus mechanic.
2. Starburst XXXtreme | NetEnt
Max win multiplier: 200,000x
RTP: 96.26%
Rating: ⭐️⭐️⭐️⭐️☆
Starburst XXXtreme is one of the best slot games for its high win potential and 96.26% RTP, well above the industry average.
The game maintains the theme and symbolism of its low-variance predecessor and is played on a 5×3 reel set with nine fixed paylines. The volatility is amped up in this long-awaited follow-up, with gameplay that’s far quicker than in the original.
This Starburst sequel is a more volatile, high-risk evolution of NetEnt’s iconic slot, featuring a massive win multiplier that can turn small stakes into impressive payouts. It caters to players who prefer intense, high-variance sessions with fewer but much bigger wins.
3. Money Train 4 | Relax Gaming
Max win multiplier: 150,000x
RTP: 96.10%
Rating: ⭐️⭐️⭐️⭐️☆
Another high-risk, high-reward game, Money Train 4 is another instalment from Relax Gaming’s iconic series, running on a 6×6 game grid with a scatter pays mechanic. It’s a highly volatile game with regular symbols paying up to 1,000x in the base game for hitting larger symbol matches.
The base game is effectively a bonus hunt, as you seek out the game’s signature Money Cart bonus round, which is a hold and win style re-spins bonus with unlockable extra rows and a whole swathe of symbol modifiers that can lead to sizeable bonus payouts.
The game is a worthy conclusion to the developer’s flagship series and comes with its own Money Cart spin-off game for players keen to get straight into the intensity of the bonus round.
4. Lil’ Devil | Big Time Gaming
RTP: 96.43%
Rating: ⭐️⭐️⭐️☆☆
Another high RTP game with generous win potential, Lil’ Devil is easily one of the best slot machines to play for adrenaline-inducing gameplay thanks to its 10/10 volatility rating.
The game is a tribute to The Cult’s 1988 song of the same name, combining a rock’n’roll vibe with retro-style reel symbols for a quirky horror-esque aesthetic in a six-reel game arena.
In the base game, standard wilds and special angel wilds can appear with multipliers to boost stacked wins. And landing three heart-shaped scatters will award a choice of two free spins modes with unique game features.
There’s also a Heartstopper feature in the base game, which is a collection mechanic that leads to enhanced bonus rounds with stronger hit potential.
5. Deal or No Deal Megaways JPK | Blueprint Gaming
Max win multiplier: 10,000x
RTP: 95.83%
Rating: ⭐️⭐️⭐️⭐️☆
Deal or No Deal Megaways JPK is a six-reel slot machine offering up to 117,469 paylines on a dynamic reel set featuring a cascade mechanic.
The theme mirrors that of the iconic TV game show, complete with red and blue boxes, offers from the banker, and a Deal or No Deal feature game, where you open boxes to determine your fate.
You will notice the lower RTP on this Blueprint Gaming slot, which is attributed to its link to the Jackpot King progressive jackpot network. The game’s internal max win is a generous 10,000x, which, combined with medium volatility, delivers a more balanced gameplay experience.
The Jackpot King system overlays the base game, offering local and progressive pots via a separate Wheel King bonus round that can be randomly activated on any base game spin.
6. San Quentin xWays | Nolimit City
Max win multiplier: 150,000x
RTP: 96.03%
Rating: ⭐️⭐️⭐️⭐️⭐️
San Quentin xWays is an ultra-high volatility game and one of the best-paying slots in Nolimit City’s impressive catalogue. It’s built on a five-reel setup with 243 ways to win, which can be expanded with the xWays mechanic and enhancer cells, increasing the number of paylines during key sequences.
The max win and extreme volatility combine to deliver infrequent, very high-value payouts, so you need plenty of grit to spin your way through the unpredictable base game in the hope of unlocking one of the title’s high-energy bonuses.
The game is set in a gritty US prison, filled with tattooed inmates, razor wire, and contraband, fantastically brought to life with heavy sound design and animations. Not a game for the faint-hearted.
You can try this slot for free on our demo slots section.
7. Chaos Crew 3 | Hacksaw Gaming
Max win multiplier: 30,000x
RTP: 96.41%
Rating: ⭐️⭐️⭐️⭐️☆
This quirky 5×5 grid slot is the third instalment of Hacksaw’s Chaos Crew series, delivering high volatility gameplay that leans into unpredictable sessions punctuated by heavy multiplier-driven hits rather than frequent lower-value payouts.
A signature mechanic from the series is Cranky Cat Multipliers, which power up wins through reel-based multipliers that can grow significantly when combined with bonus symbols that add reel multipliers up to 100x to reels or multiply existing ones by as much as 20x.
Typically for Hacksaw titles, the game includes several bonus rounds, each with its own unique features, which you can experience through feature buys in select jurisdictions or by playing the demo version of the game at Smashing Life.
8. Age of the Gods: Furious 4 | Playtech
Max win multiplier: 50,000x
RTP: 94.88%
Rating: ⭐️⭐️⭐️⭐️☆
This five-reel Greek mythology-themed game is one of the top payout slots, thanks to Playtech’s Age of the Gods jackpot, which offers all linked games access to the four-tier progressive jackpots.
Like with the Jackpot King games, the progressive jackpot potential is reflected in the game’s lower value RTP, as a portion of all bets staked on the game feeds into the uncapped pots.
Age of the Gods: Furious 4 is a five-reel, three-row slot with 20 configurable paylines. Volatility sits around the medium mark, for a more balanced hit pattern than some high-risk slots, and it has an internal max win of up to 10,000x.
The game draws on ancient mythology to build narratives into gameplay, such as the free spins bonus, which includes Furious features linked to the gods that can increase winning chances during bonus play.
The Age of the Gods progressive jackpot is activated via a pick-and-click mini-game, where matching coins awards one of four prize pots.
9. Robin: Nottingham Raiders | Peter & Sons
Max win multiplier: 121,500x
RTP: 96.07%
Rating: ⭐️⭐️⭐️⭐️☆
Robin: Nottingham Raiders is a follow-up to Robin Sherwood Marauders, where the legendary Robin Hood is reimagined in Peter & Son’s distinctive cartoon style on a wooden 5×4 reel set appearing in the streets of a medieval township.
This high-volatility adventure is one of the best slot games to win big, with a 96.10% RTP and a max win multiplier reaching an incredible 121,500x. The results are explosive as you spin the reels in the base game, collecting wilds to award bursts of stacked wins.
Scatter symbols landing in the base game can activate a progressive bonus game with 15 free spins, where filling the meter segments can award additional spins, roaming wilds, and bonus win multipliers.
10. Dead Riders Trail | Relax Gaming
Max win multiplier: 50,000x
RTP: 96.20%
Rating: ⭐️⭐️⭐️⭐️☆
Relax Gaming makes its second appearance in our top ten best payout casino games, this time in Dead Riders Trail, a 6×6 grid slot with up to 46,656 paylines and cascading reels.
Winning symbols remove stone blockers from behind the symbol positions, which is your gateway to entering the game’s various bonus rounds.
Dead Riders Trail offers an RTP of 96.20%, high volatility, and a max win potential of 50,000x, placing it firmly in the modern high-risk, high-reward category.
The theme follows the misadventures of a masked biker gang as they navigate gritty environments in search of ill-gotten gains and bonus features.
The Bonus Trail and Super Bonus Trail are progressive bonus rounds that feature reel modifiers and special symbols, offering further opportunities to try your hand at the game’s generous jackpot prize.
Best online casinos for playing high payout slots
Now that we’ve outlined some of the best payout slots, it’s time to focus on the most suitable online casinos to play them at, and what you should be looking for in a mobile casino operator.
That’s where our team of experts comes into play. We’re here to help you find the top online casinos in the UK to play the best-paying slot machines.
We do all the legwork, testing the leading sites in the country, and hold them up against our rigorous selection criteria to determine whether they tick all the right boxes.
Criteria for choosing the top online casinos
Finding suitable online casinos is not just about lobbies featuring the best gambling machines; it’s about the entire package, from licensing and payment options to transparency with game descriptions, responsible gambling tools, and more.
The following criteria are essential and form the backbone of our casino assessments:
1. UKGC licensing
Correct licensing is absolutely critical as it ensures you, as a player, are protected when gambling online. UKGC licensing ensures the casino operates legally under the UK Gambling Commission’s strict rules.
Seeing evidence of this clearly displayed on an operator’s website lets you know that, while playing at the casino, your funds are secure, and you are guaranteed fair play.
2. Responsible gambling tools
This point goes hand in hand with the above, as the provision of safer gambling tools is mandated under UKGC licensing.
These tools help you stay safe while playing online through features like setting deposit and loss limits in advance, setting reality checks to help you stay on track, and offering self-exclusion and cooling-off periods if you need to take a break.
3. Transparent RTP listings
Transparency with game descriptions and RTP listings is another key factor we look for, as slot games can appear with different RTP values at different casino sites.
Clear RTP displays that show down-rated game versions let you pick true high-payout slots for your strategy. Transparency builds trust and long-term value, so we try to avoid operators that fail to display such vital information.
4. Deep game catalogue from top studios
Having access to a broad selection of slots with diverse RTPs, volatility levels, and max win multipliers, etc., helps to ensure you can find the best payout slots tailored to your gaming style.
Whether you like to live life on the edge or believe that slow and steady wins the race, choice helps you get the best possible experience, as you’re more likely to find games that you enjoy playing. Plus, a well-stocked slots lobby is more likely to keep you coming back.
5. Fast withdrawals
The ability to withdraw your winnings quickly and efficiently always helps. Quick e-wallet payouts, like PayPal or Skrill, and straightforward KYC verification mean you can access your winnings fast and without delays.
Speedy, hassle-free withdrawals can reduce the temptation to gamble back profits.
6. Fair bonuses
We all love casino bonuses, but not all offers will suit every player. You should always read the bonus terms before claiming an offer to check for high wagering requirements or short validity periods, and to determine suitability.
Bonuses can extend your time playing and boost your bankroll, but always look out for clear terms to avoid fine-print traps.
7. Strong mobile UX
A strong mobile UX delivers slot play on smartphones and tablets, with intuitive touchscreen controls, fast load times, and crisp graphics matching desktop quality.
This matters increasingly to UK players, as more of us prefer playing on handheld devices. We test a variety of games on Android and iOS devices to gain the best possible insights.
Pay-by-Phone slots mean easy deposits, too.
8. Reliable customer support
Nothing says trustworthy quite like reliable customer support. The more options you have, the better, and features such as live chat and online knowledge bases can help resolve issues quickly.
We look out for 24/7 availability, UK-friendly phone numbers and operating hours, and detailed FAQs.
The best payout online casinos UK: what our recommendations offer
By showing our selection criteria, we provide an insight into what goes into our casino assessments and what is happening behind the scenes.
Our commitment to this process ensures we provide consistent results, meaning you get the advice you need. Our recommendations will help you find the following:
The best games catalogues
- Access to the best slot machines to play for high-value rewards
- Operators that provide full RTP game variants to maximise your returns
- Variety across volatility levels, payout potential, and bonus games
Jackpot specialists
- Separate casino lobbies dedicated to the leading jackpot slots
- Games linked to the highest-paying progressive networks like Age of the Gods, Jackpot King, and Mega Moolah
- Variety in jackpot types, including fixed internal jackpots, cross-game progressives, locally ringfenced jackpots, must-drops, and multi-tiered rewards
Fast-pay brands
- Same or next-day withdrawals
- Accept e-wallet cashouts
- Timely processing of KYC checks
- Low or zero withdrawal fees
Best value bonuses
- Casino bonuses with the lowest wagering requirements
- Long validity periods to ensure you have time to complete wagering before expiry
- Free spins on the best paying slot machines
- Transparency regarding game weighting
- Fair bonus terms and conditions
How to maximise your winnings on the best payout slots
When it comes to winning slot machines, the golden rule is to remember that online slots use RNG (random number generator) technology to produce outcomes that are completely random and cannot be influenced by outside factors.
The way to maximise your gaming outcome is through a combination of smart strategies and disciplined play. Start by using casino bonuses to boost your balance and get the most bang for your buck.
Many UK casino sites offer welcome packages, free spins, cashback, and other promos that help you extend your playtime without dipping further into your funds.
For example, a 100% deposit match bonus effectively doubles your starting bankroll, letting you spin high-volatility games for longer to seek out those high-value rewards.
Look for high RTP games with engaging bonuses, as the best slot machines to play should offer a balance of win potential and enjoyment. Slots like Starburst XXXtreme and Lil’ Devil deliver both statistical edge and fun features for better long-term returns alongside immersive mechanics.
Responsible gambling also plays a significant role in your winning strategy. Stick to betting within your means, set limits before you start playing, and avoid chasing losses.
If you manage your expectations and treat those 10,000x+ payouts as lottery-like chances, it will help to avoid frustration if things don’t go your way.
The best payout online casinos UK: bonuses & promotions
Casino bonuses can help extend your gaming session with freebies like bonus cash or free spins on selected slots, increasing your opportunities to hit those large value rewards. Below, we’ve listed the most common bonuses offered by online casino operators:
- Welcome bonus: Welcome bonuses reward new players for opening a new account. They might match your first deposit with bonus cash, offer free spins on specific slots, or offer a combination of the two. Check the bonus terms to learn how to claim the bonus and review the minimum deposit, validity period, and wagering requirements.
- Reload bonus: Reload bonuses reward returning players for additional deposits, usually by matching a percentage of your deposit with bonus funds. Usually, these are activated by depositing during promo periods or by entering bonus codes at the cashier.
- Free spins: Free spins let you play slots without risking your balance. They are usually assigned to specific slots or providers, and valued at the lowest bet possible for the game. They can be standalone or awarded as part of a bonus package, and can often have capped win conversions.
- Cashback: Cashback bonuses are refunds of a percentage of your net losses from a predefined period in the form of bonus funds. This must be wagered before cashing out, with typically lower requirements than other bonuses.
- No deposit bonus: No deposit bonuses give free cash or spins just for signing up, with no payment required. These are rare bonuses indeed, and usually low-value and for use on selected games with capped win potential.
- Loyalty programmes: Loyalty programmes offer tier rewards based on your gaming activity, rewarding players more handsomely the more they play. Rewards vary massively between operators, but typically require you to earn points through play that can then be redeemed for bonus funds, free spins, or other prizes.
Understanding volatility & bankroll management
The volatility of a slot determines its payout rhythm, directly impacting how you manage your funds when playing high-payout games. High volatility slots deliver sporadic, high-value rewards separated by long dry spells that can test your patience and your bankroll.
Low volatility options offer more frequent, lower-value wins and steadier sessions. They are more suited to casual players with smaller bankrolls who prefer minimal swings and quicker bonus awards.
Effective bankroll management is centred around smart stake sizing, ensuring you can endure a slot’s natural variance without churning through your balance and busting out.
Limiting your bets to 0.5-2% of your total session bankroll balances longevity with meaningful win potential. Going too low will drag out your session, and going too high risks rapid depletion during dry spells.
Segment your gaming sessions with strict weekly budgets, and never deviate from the plan.
Best slots to play vs. best paying slots: what’s the difference?
Getting the best possible online casino experience is about finding the right balance between the best payout slots and the best slots to play for enjoyment.
The best casino slot machines to play aren’t necessarily going to offer the best win potential, so it comes down to what matters the most to you as a player.
Consider your personal preferences and how they can guide you to the right games. The table below shows how various aspects compare between the two:
| Aspect | Best slots to play | Best paying slots |
| Main Focus | Player engagement, aesthetics, immersive gameplay | Highest RTP and maximum win potential |
| Player Appeal | Appeals to casual players seeking entertainment | A focus for strategic players looking to maximise returns |
| Key Metrics | Theme quality, bonus variety, art direction and positive mobile UX | Volatility-adjusted RTP, hit frequency, max win multipliers, high value jackpots |
| Risk Profile | Balanced gameplay and longer sessions that offer more value | Highly volatile games that offer big win potential |
Quick reference: matching goals to games
In the table below, we’ve matched the best slot machines with stated gameplay goals to help you narrow down your search for the best slot games to play for your needs:
| Play goals | Recommended slots |
| Long gaming sessions | Blood Suckers (NetEnt), Starmania (NextGen), Starburst (NetEnt) |
| Massive win potential | Mega Moolah (Games Global), Tombstone RIP (Nolimit City), Book of Dead (Play’n GO) |
| Frequent bonus triggers | Big Bass series (Pragmatic Play), Gonzo’s Quest (NetEnt), 9 Masks of Fire (Gameburger) |
Final thoughts on playing the best payout Slots
Determining the best slots to win requires analysis of various factors. First, determine your goals (value vs. big wins), then pick slot games based on RTP, volatility, and win potential that suit your preferences.
When you have found the best casino slot machines to play, use our toplist of approved operators to find the best online casino to start playing, and above all, have fun.
Frequently asked questions: best payout slots in the UK
Can you get different versions of the same slot with different RTP values?
Yes, many developers release games with variable RTPs, so you should always check the casino website for the RTP value before playing.
Do progressive jackpots lower a game’s RTP?
Typically, yes, games that feature progressive jackpots have lower RTPs, as a percentage of each stake contributes to the jackpot total.
What’s the difference between high RTP and high volatility in the best payout slots?
The difference comes down to the overall value (experience) versus the potential to hit big wins. Determining your priorities will help guide you in the right direction.
What’s the best time to play the highest paying slot machines?
The time of day has zero impact on your chances of winning online slot games, as they operate with RNG algorithms to ensure completely random outcomes.
Which casinos offer fast payouts?
Casinos that accept e-wallet payments such as PayPal, Neteller, or Skrill are often the quickest for payouts, so look for sites that offer these options.
How to find the best fast-pay casino sites?
Look for UKGC licensing, published withdrawal times, and solid user reviews to help guide you to the best fast-pay online casinos.
Simon has held senior content leadership positions at online casinos and sportsbooks for 20+ years. He leads a team of quality writers who produced trusted and authoritative iGaming content for casinos, sportsbooks, poker and bingo sites. Simon is CEO of Magic Word Media.
