Keeps the scoring program that ranks every slot here, and writes the lists that come straight out of it.
Updated
This page carries figures checked on the date above, and that window has now passed. Studios publish new RTP settings and casinos change their rules: re-check the sources at the foot of the page.
Twenty slots. Each one got here on the same four numbers, and none of them got here because a studio paid for it or because it's popular on streams.
This is the top of the 105 slots we scored from ten studios, sorted by Spin Score, with a limit of three per studio so one catalogue can't swallow the page. Without that limit Push Gaming would hold four of the top six. Every score comes from one program reading one data file, and the spec line on each card shows the inputs, so you can check the arithmetic yourself.
One thing before you scroll. Every slot below has a negative expected value. A 96.55% RTP means the game is built to keep about 3.45% of everything staked, averaged over millions of spins, and a single evening can land almost anywhere around that. The ranking tells you which games give back more in the long run and give you more to watch along the way. It can't tell you what a session will return. Nobody can.
At a glance
Top of the list
Razor Returns, Spin Score 8.7
What they share
Strong free spins: every slot here scores 7 or more on its bonus round
The catch
19 of the 20 are high or very high volatility, so long dry runs are normal
Check first
16 of the 20 list lower RTP settings a casino can choose
Play instead if...
You want a calmer game: see the beginners list
On this page
The ranking
Every slot we scored, in Spin Score order, at most 3 per provider. Spin Score = 40% RTP, 15% max win, 30% free spins round, 15% base game. How we score
The highest Spin Score of all 105 slots we scored, and no factor drags it down. Free spins open at x1, x5 or x25 depending on how many scatters start them, then mystery stacks nudge down to raise that multiplier, and Razor Reveal can still fire inside the round. The base game earns a 7 because Nudge and Reveal keeps things moving. The catch: 100,000x is Push Gaming's highest observed win, not a published cap, and the studio lists a 94.49% setting next to 96.55%. Push Bet adds 10% to every stake. Skip it.
How the score breaks down, and the fine print
Return to playerData · 40%8.6
Max winData · 15%10.0
Free spins roundEditors · 30%9.0
Base gameEditors · 15%7.0
What it is: A 5x5, 40-line sequel to Razor Shark with mystery stacks, a richer Razor Reveal feature, bonus buys and a Push Bet option.
Free spins round: Free spins start at x1, x5 or x25 depending on scatters, mystery stacks nudge to raise the multiplier, and Razor Reveal can fire inside the round.
Base game: Nudge and Reveal plus Razor Reveal with collectors, multipliers and converters give the base game regular features.
RTP, volatility and max win as Push Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
Its 96.83% top RTP is the best in this top 20, and that's what puts it level with its own sequel on 8.5 and ahead of it on the tie-break. An 8x8 grid of fruit where clusters of five or more pay and cascade away. In free spins, Jam Jar wilds wander the grid and their multipliers grow with every win they join, which is simple and works. The 19,998.5x max win is the biggest win Push Gaming has observed, not a hard cap. Look for 96.83% on the loading screen; there's a 94.25% version too.
How the score breaks down, and the fine print
Return to playerData · 40%9.5
Max winData · 15%8.4
Free spins roundEditors · 30%8.0
Base gameEditors · 15%7.0
What it is: An 8x8 cascading cluster-pays grid where clusters of five or more fruits pay and Jam Jar wilds carry growing multipliers.
Free spins round: Jam Jar wilds move around the grid in free spins and their multipliers grow with each win they join.
Base game: Cascades and the random Rainbow feature with giant fruits add action between bonuses.
RTP, volatility and max win as Push Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
Same 8.5 as the original. It sits one place lower only because ties go to the higher RTP, and 96.4% loses to 96.83%. What it gains is a bigger bonus: free spins lead into the Giga Jar feature, a large instant prize block with jar multipliers that levels up each time it comes back. Gold Vinyl collection and random Fruit Blast keep the base game busy. Push Gaming's highest observed win here is 50,000x, which maxes out our max win scale. Our record lists no bonus buy, and I don't miss it.
How the score breaks down, and the fine print
Return to playerData · 40%8.2
Max winData · 15%10.0
Free spins roundEditors · 30%9.0
Base gameEditors · 15%7.0
What it is: An 8x8 cluster-pays sequel where fruits pay in clusters of five or more, with instant prize tiles, wild jars and the Giga Jar feature.
Free spins round: Free spins lead into the Giga Jar feature, a large instant prize block with jar multipliers that boosts its level each time it returns.
Base game: Gold Vinyl collection, instant prizes and random Fruit Blast give the base game regular events.
RTP, volatility and max win as Push Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
One of only three slots in our data to score a full 10 on its bonus, and all three are Money Train games. The Money Cart is a three-respin hold-and-win round where Collector, Payer, Sniper and Necromancer symbols move values around, and the grid grows when reels fill. The base game is the weakness. Most spins are quiet, which is why it gets a 5 there. The 96.4% headline comes from SlotCatalog; Relax Gaming itself lists a 90% German setting. Max bet is 20, lower than most here. Our full guide covers the bonus symbols.
How the score breaks down, and the fine print
Return to playerData · 40%8.2
Max winData · 15%10.0
Free spins roundEditors · 30%10.0
Base gameEditors · 15%5.0
What it is: A 5x4, 40-line western slot built around the Money Cart bonus: a sticky-symbol respin round where special characters collect, add and multiply values.
Free spins round: The Money Cart bonus is a 3-respin hold-and-win round with Collector, Payer, Sniper and Necromancer symbols, and the grid grows when reels fill.
Base game: Two scatters trigger a respin feature with a building multiplier; outside that, base spins are mostly quiet.
RTP, volatility and max win as Relax Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
A 96.8% RTP and three free spins modes carry this one. You pick Old Saloon, High Noon Saloon or Train Heist, all built on sticky wilds with multipliers up to 16x and retriggers. The base game is the opposite: plain hits on 9 lines while you wait for scatters, and it scores a 3. NetEnt rates the volatility 9.9 out of 10. The max win needs care: NetEnt's Train Heist text says wins can reach 100,000x, but the stats box on the same page shows a 1,600x max payout. We use the feature text.
How the score breaks down, and the fine print
Return to playerData · 40%9.4
Max winData · 15%10.0
Free spins roundEditors · 30%9.0
Base gameEditors · 15%3.0
What it is: A 5x3, 9-line western slot. Three scatters award 12 free spins and a choice of three sticky-wild bonus modes with different multiplier rules.
Free spins round: Three free spins modes to choose from (Old Saloon, High Noon Saloon, Train Heist) built on sticky wilds and multipliers up to 16x, with retriggers.
Base game: The base game is mostly plain line hits on 9 lines while you wait for the scatters.
RTP, volatility and max win as NetEnt publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
The free spins carry it. Before they start, the Hot Seat lets you gamble your spin count up toward 50, and the round has an unlimited multiplier with unlimited retriggers. Dual Reaction cascades on up to 117,649 ways keep the base game moving, and Evolution's playin.com lists a 37.04% hit frequency. The 96.3% RTP is the lowest of BTG's three here, which costs it. Max win is 72,310x per playin.com. It's a licensed game-show title, so it isn't offered in every market.
How the score breaks down, and the fine print
Return to playerData · 40%7.9
Max winData · 15%10.0
Free spins roundEditors · 30%9.0
Base gameEditors · 15%7.0
What it is: A licensed game-show Megaways slot with up to 117,649 ways and cascading wins. Before free spins you can gamble the spin count in the Hot Seat.
Free spins round: Hot Seat gamble lets you play up to 50 free spins, which carry an unlimited multiplier and unlimited retriggers.
Base game: Megaways with Dual Reaction cascades gives regular chain wins in the base game.
RTP, volatility and max win as Big Time Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
I like how tight the RTP range is. Big Time Gaming lists 96.43% and 96.31%, so a casino can't shave much off. The bonus gives you a choice of two free spins types, and collecting Heartstopper symbols upgrades both. The base game is drier: Angel Wilds land on the middle reels and not much else happens, so it scores a 5. Max win is 100,504x according to playin.com, which rates the volatility 9.3 out of 10. Expect a grind between bonuses.
How the score breaks down, and the fine print
Return to playerData · 40%8.3
Max winData · 15%10.0
Free spins roundEditors · 30%9.0
Base gameEditors · 15%5.0
What it is: A 6x4, 4,096-ways slot themed on The Cult's song, with Lil Devil and Angel wilds. The bonus offers two free spins choices that Heartstopper collection can upgrade.
Free spins round: A choice of two free spins types, and collecting Heartstopper symbols builds toward enhanced versions of both.
Base game: Angel Wilds can land on the central reels; otherwise base spins are fairly dry.
RTP, volatility and max win as Big Time Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
The only slot in this top 20 below high volatility. Playin.com rates it 6.9 out of 10, which we map to medium-high. That makes it the one to look at if you want a strong bonus without the very long dry spells. Free spins come with a gamble wheel that can push the count up to 24, and an unlimited multiplier that rises with every cascade. The 24,236x max win is smaller than its neighbours, which is the factor holding it at 8.3. Feature Drop, the bonus buy, isn't offered in the UK.
How the score breaks down, and the fine print
Return to playerData · 40%8.2
Max winData · 15%8.7
Free spins roundEditors · 30%9.0
Base gameEditors · 15%7.0
What it is: A Megaways slot with up to 117,649 ways and cascading wins, set in a Mexican market. Feature Drop lets you buy free spins, which carry an unlimited win multiplier.
Free spins round: Free spins come with a gamble wheel to raise the spin count up to 24, and an unlimited multiplier that rises with each cascade.
Base game: Cascades and the extra reel give frequent small chains in the base game.
RTP, volatility and max win as Big Time Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
Another perfect 10 for the bonus. The last Money Cart adds the Arms Dealer, Upgrader, Unlocker and Reset, with more than 20 features in play, starting on 6x4 and unlocking rows. The 150,000x max win comes from Relax Gaming's own description. What holds it to 8.3 is RTP: 96.1% per SlotCatalog, and Relax lists a UK game ID ending in _92, which points to a 92% UK version. Bets top out at 6, so it suits smaller stakes even though the volatility is very high.
How the score breaks down, and the fine print
Return to playerData · 40%7.3
Max winData · 15%10.0
Free spins roundEditors · 30%10.0
Base gameEditors · 15%6.0
What it is: A scatter-pays slot that ends the Money Train series, with a Money Cart hold-and-win bonus starting on 6x4 and unlocking more rows.
Free spins round: The final Money Cart bonus adds the Arms Dealer, Upgrader, Unlocker and Reset, with more than 20 features in play.
Base game: A base game respin feature and the Arms Dealer, who can hand out features at any time, add some base action.
RTP, volatility and max win as Relax Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
The busiest base game on this list, scored 8. Fire Frames, Fire Reels, Enhancer Cells and Dead Patients fire constantly, and the 99,999x max win can land outside the bonus. Three free spins rounds plus a God Mode carry Dead Patient multipliers up to x9,999. Nolimit City calls the volatility Insane. The RTP is the problem: its page shows 96.06%, but Bigwinboard lists five settings going down to 84.01%. Check the info screen every time. Released March 2025.
How the score breaks down, and the fine print
Return to playerData · 40%7.2
Max winData · 15%10.0
Free spins roundEditors · 30%9.0
Base gameEditors · 15%8.0
What it is: The sequel to Mental, on 5 reels with 108 base ways that Fire Frames and Fire Reels split into more. Enhancer Cells add wilds, xSplits and xNudge wilds, and Dead Patients reveal multipliers up to x9,999.
Free spins round: Three free spins rounds plus a God Mode, with Dead Patient multipliers up to x9,999 that carry through the round.
Base game: Fire Frames, Fire Reels, Enhancer Cells and Dead Patients fire constantly, and the max win can land in the base game.
RTP, volatility and max win as Nolimit City publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
The third Money Cart scores 10 on its bonus thanks to persistent characters, the Shapeshifter, Absorber and Tommy Gun, that keep acting on every respin. There are four bonus buy levels, including a 500x persistent option, none of them in the UK. RTP is where it slips: 96.1% at best, with 94% and 90% settings listed, and a UK game ID ending in _92. The base game teases respins but most value sits in the bonus. Honestly, Money Train 2 has the better RTP for a similar experience.
How the score breaks down, and the fine print
Return to playerData · 40%7.3
Max winData · 15%10.0
Free spins roundEditors · 30%10.0
Base gameEditors · 15%5.0
What it is: A 5x4, 40-line sequel where the Money Cart hold-and-win bonus adds persistent symbols that keep acting on every respin.
Free spins round: Money Cart bonus with persistent characters, the Shapeshifter, Absorber and Tommy Gun, plus four bonus buy levels including a 500x persistent option.
Base game: Base game has some respin teases, but most value sits in the bonus.
RTP, volatility and max win as Relax Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
The base game scores 8 because xBomb wilds explode to raise the multiplier and reveal features hidden in ice blocks on most spins. Lucky Wagon Spins come in versions for 3 to 6 scatters plus an Evil Dwarf variant, with coins collecting values down each reel. Max win is 70,000x. The catch is the same as Mental 2: Nolimit City shows 96.05%, while Bigwinboard lists five settings down to 84.07%. Hit frequency is 22.18%, so plenty of spins pay nothing at all.
How the score breaks down, and the fine print
Return to playerData · 40%7.1
Max winData · 15%10.0
Free spins roundEditors · 30%9.0
Base gameEditors · 15%8.0
What it is: The third mining game, on a 6x6 grid with collapses. xBomb wilds explode to raise the multiplier and reveal features hidden in ice blocks.
Free spins round: Lucky Wagon Spins come in 3 to 6 scatter versions plus an Evil Dwarf variant, with coins that collect values down each reel.
Base game: xBomb wilds, Wild Mining and ice blocks hiding features act on most spins, with a gamble option on 2-scatter results.
RTP, volatility and max win as Nolimit City publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
The original still holds up at 8.1. Fire Frames split symbols to add ways on most spins and two Dead Patients reveal multipliers, so the base game earns a 7. The three free spins tiers pass Dead Patient multipliers to new symbols. How rare is the top prize? Nolimit City gives the 66,666x max win a probability of 1 in 18 million. RTP is 96.08% with a 94.2% setting per Bigwinboard. Read our Mental guide before you buy a bonus; prices run 80x to 1,000x.
How the score breaks down, and the fine print
Return to playerData · 40%7.2
Max winData · 15%10.0
Free spins roundEditors · 30%9.0
Base gameEditors · 15%7.0
What it is: A dark asylum slot on 5 reels where Fire Frames split symbols to add ways and Dead Patient symbols reveal large multipliers. Three free spins rounds escalate the same features.
Free spins round: Three free spins tiers where Dead Patient multipliers transfer to new patient symbols, plus a top tier that keeps the multiplier count from dropping.
Base game: Fire Frames split symbols on most spins and two Dead Patients reveal multipliers, so the base game does a lot.
RTP, volatility and max win as Nolimit City publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
Pragmatic's best score, and it beats the original Gates of Olympus mainly on max win: 15,000x against 5,000x. A 6x5 pay-anywhere grid with tumbles and multiplier symbols up to 1,000x that can land on any spin. Fifteen free spins add every multiplier to a running total. RTP is set by the casino, from 96.5% down to 94.5%, so look before you play. Bigwinboard gives a 125 max bet, which likely includes the ante option. Good if you like the original and want more ceiling.
How the score breaks down, and the fine print
Return to playerData · 40%8.5
Max winData · 15%7.9
Free spins roundEditors · 30%8.0
Base gameEditors · 15%7.0
What it is: A 6x5 pay-anywhere grid with tumbles and multiplier symbols worth up to 1,000x. Four or more scatters start 15 free spins with a running multiplier.
Free spins round: Fifteen free spins with a running total multiplier fed by multiplier symbols up to 1,000x, plus five more spins for three scatters.
Base game: Tumbles and random multiplier symbols from 2x to 1,000x can land on any base spin.
RTP, volatility and max win as Pragmatic Play publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
Three bonus rounds and they feel different from each other, which is why the free spins score 9. Duel at Dawn can stack several multiplier reels at once. VS symbols expand into multiplier wild reels in the base game, but plenty of spins pass with nothing, and Bigwinboard puts hit frequency at 19.3%. Hacksaw lists four RTP settings, from 96.38% down to 88.42%. That spread is the biggest warning on the card. Max win is 12,500x. More in our full guide.
How the score breaks down, and the fine print
Return to playerData · 40%8.1
Max winData · 15%7.6
Free spins roundEditors · 30%9.0
Base gameEditors · 15%6.0
What it is: A 5x5, 15-line western slot where VS symbols expand into wild reels carrying multipliers. Three bonus games can be triggered or bought: Great Train Robbery, Duel at Dawn and Dead Man's Hand.
Free spins round: Three different bonus rounds (sticky wilds, stacked duel reels, and a collect-then-showdown round) give real choice and the Duel at Dawn round can stack several multiplier reels at once.
Base game: VS symbols expand into multiplier wild reels in the base game, but many spins pass with no feature.
RTP, volatility and max win as Hacksaw Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
A 9 for the bonus. Two tiers collect reel multipliers up to 100x with refilling lives, and a Best of Bonus option plays the round three times and pays the best result. That's a clever twist, though it costs 200x or 500x to buy. Cranky Cat multiplier wilds land often in the base game. Max win is 20,000x and Hacksaw rates volatility 5 out of 5. The four RTP settings run from 96.27% to 88.28%, so check before you spin.
How the score breaks down, and the fine print
Return to playerData · 40%7.8
Max winData · 15%8.4
Free spins roundEditors · 30%9.0
Base gameEditors · 15%6.0
What it is: A 5x5, 19-line sequel where multiplier wilds multiply each other on shared lines. The bonus and Super Bonus collect reel multipliers with refilling lives, and buyers can pick a best-of-three version.
Free spins round: Two bonus tiers with reel multipliers up to 100x, plus a Best of Bonus option that plays the round three times and pays the best result.
Base game: Cranky Cat multiplier wilds land often and a random drop feature gives a taste of the bonus during normal play.
RTP, volatility and max win as Hacksaw Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
The oldest slot in this top 20, from July 2017, and it earns its place with a base game scored 8. Cascades raise a multiplier and three princess powers plus the Trinity respin can fire on any spin. Clearing the grid starts free spins where you pick the spin count and the princess. The 5,000x max win is the lowest here. Play'n GO's page lists no RTP, so the figures come from Bigwinboard: 96.5% at best, with four lower settings down to 84.5%.
How the score breaks down, and the fine print
Return to playerData · 40%8.5
Max winData · 15%6.0
Free spins roundEditors · 30%8.0
Base gameEditors · 15%8.0
What it is: A 5x5 cascading grid slot where matching symbols pay, a multiplier rises with each drop and three princesses alter the grid.
Free spins round: Clearing the grid gives free spins with a growing multiplier, and you choose the spin count and which princess power helps.
Base game: Cascading wins raise a multiplier, and three princess powers plus the Trinity respin fire in the base game.
RTP, volatility and max win as Play'n GO publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
The free spins score 9 for one reason: marked spots and their doubling multipliers, up to 128x, stay put for the whole round, so value builds spin after spin. In the base game the same spots reset after each spin. A 7x7 cluster grid with tumbles and a hit roughly every 2.9 spins per Bigwinboard. Very high volatility for a 5,000x max win is a poor trade on paper, and it's why the score stops at 7.9. RTP is set by the casino, from 96.5% to 94.5%.
How the score breaks down, and the fine print
Return to playerData · 40%8.5
Max winData · 15%6.0
Free spins roundEditors · 30%9.0
Base gameEditors · 15%6.0
What it is: A 7x7 cluster pays grid with tumbles. Winning symbols mark their spots, and further wins on marked spots add multipliers from 2x doubling up to 128x.
Free spins round: Ten to 30 free spins where marked grid spots and their doubling multipliers (up to 128x) stay for the whole round, so value builds spin after spin.
Base game: Tumbles and spot multipliers can build within a single base spin, though they reset after it.
RTP, volatility and max win as Pragmatic Play publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
The 25,000x max win lifts it above the original Sweet Bonanza. Four or more lollipops start 10 free spins where candy bomb multipliers up to 1,000x are added together at the end of each tumble. The bonus scores only 7 because it's the familiar round with bigger numbers. Bigwinboard puts the hit rate at about 1 in 2.33, so small tumble wins are common. Pragmatic offers 96.53%, 95.52% and 94.51%, and the casino picks.
How the score breaks down, and the fine print
Return to playerData · 40%8.6
Max winData · 15%8.8
Free spins roundEditors · 30%7.0
Base gameEditors · 15%6.0
What it is: A 6x5 pay-anywhere grid with tumbling wins. Four or more lollipop scatters start 10 free spins where candy bomb multipliers up to 1,000x apply to the spin's total win.
Free spins round: Ten free spins with candy bomb multipliers up to 1,000x that add together at the end of each tumble, plus five more spins for three lollipops.
Base game: Tumbles give chain wins in the base game, but the big multipliers are kept for the bonus.
RTP, volatility and max win as Pragmatic Play publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
No reels at all. You match five or more cubes of one colour on a 5x5 board that grows a cube in each direction with every consecutive win, up to 11x11, and corner X cubes become multipliers. Filling 50, 70 or 90 blocks in the bonus pays 500x, 2,500x or 7,000x. Hit frequency is only 15.68%. Hacksaw has no game page for it, so most figures come from Bigwinboard, including the 96.33% RTP and 11,000x max win. Odd, and a nice change.
How the score breaks down, and the fine print
Return to playerData · 40%8.0
Max winData · 15%7.4
Free spins roundEditors · 30%8.0
Base gameEditors · 15%7.0
What it is: A grid game with no reels: match five or more same-coloured cubes on a 5x5 board that grows up to 11x11 with each consecutive win. Corner X cubes become multipliers equal to the cluster size.
Free spins round: Wins in the chosen colour stay sticky, the grid keeps its size between spins, and filling 50, 70 or 90 blocks pays 500x, 2,500x or 7,000x.
Base game: Every win grows the grid one cube in each direction and corner X cubes turn into multipliers, so winning spins keep building.
RTP, volatility and max win as Hacksaw Gaming publishes them, checked on November 3, 2026. A casino may run a lower RTP setting: check the game’s info screen.
Demo buttons open the free-play version on the game studio’s own site: no deposit, no account. We are not paid for them. How we make money
How this list is made
Every slot gets a Spin Score out of 10: 40% RTP, 15% max win, 30% the editors' score for the free spins round and 15% for the base game. RTP uses the highest setting the studio publishes, on a scale where 94% or less scores 1 and 97% or more scores 10. Max win sits on a log scale from 500x (2 points) to 50,000x (10 points).
We sort all 105 slots by that score, break ties with the higher RTP, and stop each studio at three. The full method, with worked examples, is on how we score slots.
What the top 20 have in common
Bonus rounds, mostly. Every slot here scores at least 7 on its free spins, and 11 of the 20 hit our max win ceiling of 50,000x or more. RTPs are bunched tight, between 96.05% and 96.83%.
Then there's volatility. We don't score it, on purpose, because it's a preference and not a quality. But 19 of these 20 are high or very high volatility anyway. That isn't a coincidence: escalating multipliers and huge max wins are paid for with long runs of nothing. Extra Chilli Megaways is the one medium-high exception.
And 18 of the 20 sell a bonus buy somewhere. I'd skip it. Mental charges 80x your stake for its cheapest bonus and Fire in the Hole 3 lists Lucky Wagon Spins at up to 4,000x, all for one round whose RTP is still below 100%. Several of these games don't offer a buy in the UK at all.
What's missing, and why
Starburst scores 4.8, second from the bottom of our 105. It has no free spins round and an 800x max win, so two of four factors sink it. Book of Dead lands on 6.5 because its base game is plain lines until the scatters show up. The original Gates of Olympus scores 7.8, a fine number, but its 1000 version beats it on max win.
Razor Shark is the odd case. It scores 8.4, good enough for sixth, but Push Gaming already has three slots above it, and the cap is the cap.
Two studios are absent. Red Tiger's best is Gonzo's Quest Megaways at 7.2 and ELK Studios tops out at 7.0 with Tahiti Gold. Not bad games. Just not top 20.
Check this before you play any of them
The RTP on each card is the best version the studio publishes. Casinos choose which version they run, and 16 of these 20 games list at least one lower setting. Mental 2 goes as low as 84.01% per Bigwinboard. Money Train 2 has a 90% version for Germany. Open the game's info or rules screen, find the RTP line, and if it doesn't match the card, you're playing a different maths model from the one we scored.
Free demos are the cheap way to find out if you even like a game. Use them. And set a spend limit before you deposit anything, not after.
If this list looks too wild
It probably is, for a small budget. Very high volatility on a 5x4 grid means a 100-spin session can end with nothing to show. Our beginners list sticks to low and medium volatility, and the low volatility page explains what you give up for the smoother ride. If RTP is the only thing you care about, the highest RTP list sorts by that alone.
Frequently asked questions
What is the best online slot to play?
On our Spin Score it's Razor Returns from Push Gaming, at 8.7 out of 10. It has a 96.55% top RTP, a free spins round that starts at up to x25, and a busy base game. Best on paper still means a negative expected value, and it's high volatility, so it isn't the right pick for a small budget.
Which online slots pay out the most?
Over the long run, the ones with the highest RTP. In our data that's Blood Suckers at 98% and Wild Swarm at 97.03%, both on our highest RTP list. RTP only describes millions of spins, though. In a single session, any of these can pay back far less.
Do online slots have different RTPs at different casinos?
Often, yes. Studios publish several settings and the casino picks one. Of our 105 slots, 65 list at least one lower setting, and 24 have a setting under 90%. The game's info screen shows the one you're on.
Are high volatility slots better?
No. Volatility describes how wins are spread out, not how much comes back. High volatility means fewer, bigger wins and long dry runs. That's why we don't score it and show it as a filter instead. More in our volatility guide.
Can you win money playing slot demos?
No. Demos use play credits with no cash value. They're for learning how a game behaves before you decide whether to play it for real, or not at all.
Further reading
Official sources
Push Gaming: Razor Returns– RTP 96.55% and 94.49%, high volatility, highest observed win 100,000x, Push Bet; checked November 3, 2026
Relax Gaming: Money Train 2– Bets, 50,000x max win, 90% German RTP setting, Money Cart features; checked November 3, 2026
NetEnt: Dead or Alive 2– RTP 96.8%, volatility 9.9/10, hit frequency 30%, stats box max payout vs Train Heist text; checked November 3, 2026
Nolimit City: Mental– RTP 96.08%, 66,666x max win and its 1 in 18 million probability; checked November 3, 2026
