Best payout casino UK: the version check that decides what a thousand spins cost

Finding the best payout: the short version

• Check the version, not the casino. Providers ship the same title at several returns and nothing in the Commission’s rules obliges a casino to install the highest one. Book of Dead has been published at 96.21%, 94.25%, 91.25%, 87.25% and about 84.2%, so the identical game can cost £3.79 or £12.75 per thousand 10p spins.
• The information screen is the price tag. The return has to be available before you play, and it is the one number that tells you what the game charges. Open it on every new title and on every title you return to at a different site.
• At the top of the market the differences are small. Most headline versions sit between 96% and 97%, which is about a pound per thousand 10p spins between them. Published returns above 97% are rare: the highest in these sources is Blood Suckers at 98.00%, which costs £2.00 per thousand.
• Tables beat reels on price, by a long way. Blackjack to basic strategy keeps about 50p of £100 staked, baccarat’s banker bet £1.06 and a single-zero wheel £2.70, against £3.29 on the best-published version of a popular slot. The catch is pace, since reels take far more money per hour.
• Wagering is a payout term. A British licensee cannot ask more than 10x, which leaves a bonus cleared on a 96% game worth 60% of its face. A package licensed abroad asks 35x to 40x, which is past the break-even multiple of every version on this page.

One rule worth keeping: the cheapest game you can find is still a game that keeps something, every time it is played.

Checking what a game costs, call by call

Six calls, in order, before the first spin at a site you have not used. The whole thing takes about ninety seconds once you know where to look, and it is the only part of payout you control.

1. Open the information screen. It sits behind the “i” or the menu inside the game, and the Commission requires the return to be reachable before play begins. If you cannot find a figure at all, that is an answer in itself.
2. Compare it with the provider’s published default. This page lists them: 96.71% for Big Bass Bonanza, 96.38% for Wanted Dead or a Wild, 96.31% for Eye of Horus, 96.21% for Book of Dead, 96.22% for both Max Win Machine and Epic Ze Zeus. If the screen shows less, the casino has installed a lower copy.
3. Turn the gap into money. Multiply the difference by the stakes you expect to put through. At 10p a spin, a thousand spins is £100 of stakes, so each point of return is worth £1 and the arithmetic needs no calculator.
4. Check the second screen for the mechanic, not just the number. Volatility and the maximum win decide how the same return arrives. Book of Dead is published as high volatility with a 5,000x maximum; Big Bass Bonanza as medium-high with 2,100x. Two games at 96% feel nothing alike.
5. Read the bonus terms as a payout term. The wagering multiple and the game weighting decide what a promotion returns, and the version you clear it on decides whether the sum is positive at all.
6. Repeat it at the next site. The same title at two casinos is two different prices, which is the single most useful thing to know about payout and the thing no league table of casinos can tell you.

If only one of those gets done, make it the first. Everything else on the list is arithmetic you can do later; the number on the information screen is only visible while you are standing in front of the game.

What a thousand spins at 10p cost on each published version

A thousand spins at 10p is £100 of stakes, which makes the sum easy: the cost in pounds equals the share the game keeps, expressed as a percentage. Every figure in the table is the provider’s own published return, and every version named is one the provider lists for the game.

1,000 spins × £0.10 = £100 staked    £100 × (100% − 96.21%) = £3.79    £100 × (100% − 87.25%) = £12.75

Two things fall out of the table. The first is how narrow the top of the market is: from Big Bass Bonanza at £3.29 to Gonzo’s Quest at £4.03 is 74p per thousand spins, which over an evening is small change. The second is how wide the inside of one title can be. Book of Dead’s own ladder runs from £3.79 to £12.75, with the lowest version the provider lists, at about 84.2%, costing around £15.80 per thousand. Wanted Dead or a Wild runs from £3.62 to £11.58 on four published settings, and the 2025 Light and Wonder version of Rainbow Riches from £4.00 to £13.00 on five. Choosing the right game is worth pennies, and being handed the wrong copy of it is worth pounds.

Scale it to the stakes you actually play. At 20p a spin every figure doubles, at 50p it multiplies by five, and at the £5 ceiling a player aged 25 or over may stake, a thousand spins put £5,000 through the game, which turns Book of Dead’s gap between versions from £8.96 into £448. The same arithmetic in the other direction is why small stakes are the single cheapest way to spend an evening on reels: at 2p a spin, a thousand spins of the 87.25% copy cost £2.55.

Why one title arrives at two prices

The version system is not a secret and it is not a trick. Providers build a game once and ship it with a set of return settings, and the operator chooses which to install when it takes the game. There is no rule in the Commission’s standards requiring a casino to run the highest one, which is why the information screen rather than the game’s reputation is the thing to read.

Pragmatic Play, whose games it describes as certified or licensed in more than 30 jurisdictions, built Big Bass Bonanza in December 2020 at 96.71% with copies at 95.67% and 94.6%, and the series has grown to more than a dozen titles at returns from 96.07% to 96.53%. Play’n GO put Book of Dead out on 14 January 2016 at 96.21% and lists four lower settings beneath it. Hacksaw Gaming gives Wanted Dead or a Wild three settings under its 96.38% top, and its two August 2026 releases, Max Win Machine on the 6th and Epic Ze Zeus on the 18th, both open at 96.22% with lower copies down to 92.20% and 92.35%. Blueprint lists five versions each for Eye of Horus and Fishin’ Frenzy, and its British release Fishin’ Frenzy The Big Catch Gold Spins, dated 29 January 2026, starts at 95% rather than 96%, so even its best copy costs £5.00 per thousand 10p spins. Light and Wonder’s 2025 listing of Rainbow Riches for Britain and Europe spans 96% down to 87%.

Volatility is the other half of the picture and it is independent of price. Blood Suckers is published as low volatility at 98.00%; Dead or Alive 2 as high, at 96.80%, with a maximum of 100,000 times the stake; Bonanza at 96.0% with 26,000x; Extra Chilli at 96.19% with 16,877x; Divine Fortune at 96.59% with three progressive jackpots. Two games with the same return charge the same per pound staked over the long run and feel completely different over one evening, which the next section puts numbers on. The slots section goes through the games themselves, and the Big Bass series and the Pragmatic Play guide list the published figures title by title.

What a lower version does to £30 at 25p

A return percentage describes the long run and tells you nothing about an evening, so here is an evening. Four versions were run on this site’s own models: the “Book-style” model, built to Book of Dead’s published 96.21% return and 5,000x maximum, and the “Bass-style” model, built to Big Bass Bonanza’s published 96.71% and 2,100x, each also run at a lower published setting of the game it is named after. The real pay tables are not public, so these are models of the published figures rather than copies of the games.

Each line is 100,000 simulated sessions of a £30 balance at a flat 25p, running until the money could not cover another stake or 480 spins had passed. Thirty pounds covers 120 spins before anything is won back, so no balance can fail before then.

Read the 480-spin column first. On the top version of the gentler model, 42.1% of balances were still going at the end; on the low copy of the jumpier one, 21.0% were. Exactly half as many evenings lasted the distance, from the same £30 and the same stake. The share finishing above the £30 they started with falls the same way, from 22.7% to 13.4%, and the average cost of playing all 480 spins rises from £3.95 to £15.30, which is £120 of stakes meeting a house share of 3.29% and 12.75%.

The other reading is that volatility moves the figures almost as much as price does. The “Book-style” model at its published default, 96.21%, kept fewer balances alive to 480 spins than the “Bass-style” model did at 94.6%, which is a lower-paying version of a different game. A high-volatility design puts more of its return into rare outcomes, so the median evening is shorter even when the long-run price is better. If you want time on screen, the volatility class matters; if you want the lowest price per pound, the version does.

480 spins × £0.25 = £120 staked    £120 × 3.29% = £3.95    £120 × 12.75% = £15.30

The games whose price is printed in the rules

Slots are the only casino games where the price is a setting. At a table, the rules fix it exactly, there are no versions to hunt for, and the same game costs the same at every site running the standard rules. Per £100 of stakes, which is a thousand 10p spins or twenty £5 bets, the ladder looks like this.

Three practical notes. A live dealer changes nothing about the price. One zero among 37 pockets keeps 2.70% of every standard bet with a croupier at the wheel exactly as it does with software behind it, and what the live room alters is the pace, which is the other half of what an evening costs. Some live games publish no return at all, so none is quoted here: Lightning Roulette’s page gives the mechanic, where one to five numbers a round are struck with multipliers of 50x to 500x while an unmultiplied straight-up bet pays 29 to 1 instead of 35 to 1, but no percentage, and the same is true of MONOPOLY Live and of Infinite Blackjack with its four optional side bets. And side bets are where a cheap table stops being cheap, since a blackjack player taking 5% side bets alongside a 0.5% main game is paying nearer a slot’s price than a table’s. The live dealer guide goes through the tables and their limits.

One rule that trips people up: the stake ceilings of £5 and £2 a spin apply to online slots, which the rules define as reel-based casino games played online, and the Commission’s guidance says they do not reach roulette or blackjack. So a cheaper game can legally take a bigger stake per round, and the arithmetic of cost per hour has to count both the price and the money you put through it.

Why no casino can tell you its payout percentage

A casino-wide payout figure is an average of thousands of games weighted by what players actually staked on each, which means it moves with the customers rather than with the games. A site whose regulars prefer roulette at 97.30% will report a higher aggregate than an identical site whose regulars prefer slots, without a single game differing between them. That is why a published aggregate of 97% is compatible with running an 88% copy of a popular title, and why the figure is close to useless for choosing where to play.

The Commission does not publish a market-wide return either. What it does publish is the money. Its figures for January to March 2026, released on 21 May 2026, record £773m kept from online slots across 25.1 billion spins, which is about 3.1p a spin, over 202 million sessions averaging 15 minutes and 124 spins apiece, with £3.82 kept from a typical session. Those numbers tell you what the market charges in aggregate, not what any game returns, because the average stake behind them is not published.

The annual statistics of 17 September 2026 set the scale: of £8.3bn kept across remote casino, betting and bingo in the year to March 2026, remote casino accounted for £5.7bn and slots alone for £4.8bn. That is why almost every welcome offer you are shown is built around spins, and why the slot rulebook has moved faster than any other part of British gambling regulation.

The multiple at which a bonus stops paying

A bonus is a payout question wearing different clothes. If you play the wagering through in full, what is left is the bonus multiplied by one minus the multiple times the share the game keeps, and dividing one by that share gives the multiple at which the sum reaches zero. That break-even figure is the most useful number in any set of bonus terms, because it turns two separate clauses, the wagering and the game, into one answer.

1 ÷ 3.29% = 30.4x    1 ÷ 3.79% = 26.4x    1 ÷ 12.75% = 7.8x

£15 × (1 − 10 × 0.0329) = £10.07    £15 × (1 − 10 × 0.1275) = −£4.13

Three readings. First, the British ceiling of 10x, in force since 19 January 2026, keeps a bonus positive on any reasonable version: £15 cleared on a 96.71% game is worth £10.07 and the same bonus on a 96.21% game £9.32. Second, the version can undo that on its own. Clear the same £15 on an 87.25% copy and the formula turns negative at £4.13 below zero, because the break-even multiple of that version is 7.8x and the ceiling sits above it. Third, at the multiples printed in an offshore set of terms the answer is negative whatever you clear it on, since 35x is beyond even the 30.4x break-even of the highest-paying version here.

Two related points. No wagering at all keeps the whole of a bonus, which is the highest payout any promotion can have and the structure a couple of British brands are built on. And a bonus that has to be cleared on slots only, which is what an offshore package specifies, removes the cheap games from the calculation entirely: you cannot clear a slots-only requirement at a 99.5% blackjack table. The best casino bonuses guide runs every offer type through the same formula, and the 100% match guide covers how sticky and non-sticky bonuses differ.

The British product that publishes no payout at all

This is a bingo-led site, and bingo is the awkward case for a payout page. A bingo room does not publish a return and does not have to: the Commission’s technical standard RTS 3 lets a site set out how its prizes are allocated instead of quoting a figure. So there is no information screen to open, no version to check, and no provider default to compare against. Everything the version check gives you on a slot is simply absent.

What exists instead is the sector’s own arithmetic. In the year to March 2026, remote bingo took £882.2m of ticket money and operators kept £147.8m of it, so 83.25% came back to players as prizes and 16.75% stayed behind. Ten years earlier the prize share was 91.67%. That 16.75% is the honest figure to set against a slot’s 3.29% or 3.79%, and on a per-pound basis bingo is far dearer than any slot version in the table above except the lowest copies.

The reason an hour of bingo still costs less than an hour of reels is turnover rather than price. A player buying six 5p tickets in each of two dozen games has put £7.20 through in an hour; a player taking 25p spins at a steady pace puts £120 through in the same time. Price per pound and pounds per hour are different questions, and payout only answers the first. The bingo section prices rooms properly, with the draw simulated ball by ball.

One hybrid is worth a line here because it sits on the boundary. Slingo is a reel-based game, so it falls inside the online slot stake limits of £5 and £2 a spin while a bingo ticket does not, and its titles publish returns the way slots do rather than describing prize allocation the way bingo does. If you are choosing on payout and you like the bingo format, that published figure is the one thing in the family you can actually read, and the Slingo guide works through what the published numbers mean.

What the published facts about brands say about payout

No brand can be called the highest-paying, because payout is a property of the installed version and no operator publishes its whole library of settings. What published facts do tell you is which structures hand back more of a promotion, which groups share a jackpot pool, and which names you can verify before you start comparing games. Every British operator in this bracket is licensed by the Gambling Commission, which means the 10x ceiling, the stake limits and the spin-speed rules all apply to it.

On promotions, the clearest difference in the British market is between wagering and none. PlayOJO, operated by SkillOnNet, and MrQ, from Lindar Media, put no play-through on anything they hand out, so a win from a bonus arrives as cash with the whole of its return intact, usually in return for a smaller batch of spins. On the arithmetic above that is the structural maximum: 10x on a 96% game leaves 60% of a bonus, and nothing leaves 100% except nothing.

On jackpots, pooling changes where a game’s return goes rather than how much of it there is. Pink Casino, operated by LeoVegas Gaming PLC on Gambling Commission account 39198, runs a progressive shared across the LeoVegas network, which also carries LeoVegas itself, Bet UK and BetMGM, the last of those having opened here during 2023 using the licence and systems LeoVegas already had. A shared progressive diverts a slice of every stake into a pool that pays rarely and large, so the published return is still the published return and the shape of it is pushed further into the tail.

On the games themselves, one published fact is worth more than any marketing line. On 25 November 2025 Entain agreed to take the Big Bass titles into over 2,700 of its Ladbrokes and Coral shops, which it described as the series reaching a major operator’s retail estate for the first time. It added that every title in the family sits consistently among its top 20 games at both brands, and that Big Bass Splash was its strongest online slot in Britain through 2025. That tells you which games you are most likely to meet, which is exactly where checking the installed version pays off.

On verification, the footer is the shortcut. Grosvenor Casinos and Magical Vegas share one licence, Rank Interactive (Gibraltar) Limited, account 57924, checked on 10 October 2026, and Grosvenor also trades from premises on British high streets, as Betfred, Genting Casino and Admiral Casino from Novomatic do. Videoslots, All British Casino, Mr Vegas, Magic Red, Dream Vegas and Duelz each print their licensed company and Commission account number at the foot of every page, which the public register will confirm. Within Kindred, now part of FDJ United, 32Red leads with the casino and Unibet with the sportsbook; bet365, the privately owned Stoke-on-Trent group, and Betway both build casino welcomes on a deposit as a rule, as do Flutter’s Sky Bet, Betfair and Paddy Power, while Sky Vegas is that group’s casino-led name. None of those facts is a payout claim, and treating any of them as one would be a mistake.

Payout where nobody is checking

Everything above depends on a published figure being published, and on somebody being able to act if it is not what it says. At a casino licensed outside Great Britain neither of those holds. A welcome package from outside Britain comes from an operator licensed in Curaçao, Anjouan or Costa Rica, and its terms carry the offer, the wagering, the payment methods and the licence, with no return percentage for any game and no British regulator able to verify one.

The protections that shape payout at a licensed site are the ones missing. There is no 10x ceiling on bonus wagering, and the offshore terms ask 35x to 40x, with 30x to 60x ordinary across the sector. There is no stake ceiling per spin and no 2.5-second floor under one, so money can leave a balance as fast as the software allows. The warning that ended feature buy-ins for British customers does not reach them. And a complaint has nowhere to go: no eight-week deadline, no independent adjudicator, and a regulator with no jurisdiction.

The brands marketed to British players from those jurisdictions follow a pattern worth knowing. Five shopfronts, Mystake, Goldenbet, Rolletto, Donbet and Velobet, rest on one Curaçao company, Santeda International B.V., which makes them a single counterparty: absent from the British register, taking coins, and held to no wagering ceiling. Roobet and Gamdom, Curaçao casinos that grew out of trading game skins, hold no British licence either, and Rainbet runs on an Anjouan licence held by RBGAMING N.V. with coins at the centre of its cashier. Kinghills and NineWin are recent arrivals from networks of sister sites with no public record at all. A British player sending money to any of them has no regulator to appeal to and no bank able to reverse a coin payment, which the section on sites outside GamStop reviews brand by brand on published facts.

There is one honest point in the other direction. An offshore licence does not change a game’s published return: a 96.71% game is 96.71% wherever it runs. What changes is that nobody independent is checking which version was installed, and that the bonus terms attached to it are past the multiple at which a bonus can pay anything back.

Price a version, then price a bonus

The first calculator prices a session at any return. It opens on a thousand spins at 10p on Book of Dead’s published default of 96.21%, which comes to £3.79. Change the return to 87.25 and watch it reach £12.75, then put in your own stake and the figure from the information screen in front of you.

The second prices a bonus against the version you would clear it on. It opens on a £15 bonus at 10x cleared on Big Bass Bonanza’s published 96.71%, worth £10.07. Set the return to 87.25 to see the same offer fall to £4.13 below zero, or raise the multiple to 35 for the terms a casino licensed outside Great Britain carries.

Both give long-run averages. A single evening can land anywhere, which is what the simulated session table exists to show: on the figures there, even the best line left only 22.7% of balances above the £30 they started with.

Keeping the cost of a cheap game visible

A high published return is a lower price, not a safer product, and the arithmetic on this page says so plainly: every version in the table keeps something from every pound, so the expected result of playing is a loss whichever copy you find. The reason to do the version check is to stop paying three times over for the same entertainment, not to turn a loss into a gain.

The British rules help more than any return figure does. A licensed slot has shown your net position and the time you have played on screen since 31 October 2021, alongside at least 2.5 seconds between spins and no autoplay, no turbo and no celebration of a return at or below the stake. A spin may take at most £5 from a player aged 25 or over and £2 from anyone aged 18 to 24, which puts a ceiling on how fast money can leave. And every licensed site has had to prompt a new customer to set a deposit limit before the first payment since 31 October 2025.

If the cost has stopped being visible, the layers are the usual ones. Gamstop closes every licensed British site in one registration and has been compulsory for online licensees since 31 March 2020, though it has no reach over a casino licensed abroad. Your bank will refuse gambling payments on your card once the block is on, usually with a cooling-off period before it can be lifted. GamBan covers the sites Gamstop never will, device by device. And there is the National Gambling Helpline on 0808 8020 133, free, confidential and answered at any hour, with every tool gathered on our play safe page.

What sits behind each number

Published returns are the provider’s own, as listed for each game: Pragmatic Play for the Big Bass and Gates of Olympus families, Play’n GO for Book of Dead, Hacksaw Gaming for Wanted Dead or a Wild, Max Win Machine and Epic Ze Zeus, Blueprint for Eye of Horus and the two Fishin’ Frenzy titles, Light and Wonder for the 2025 Rainbow Riches listing, and NetEnt and Big Time Gaming for the rest. Where a provider publishes one figure, the table says so rather than inventing a ladder, and where a game’s page carries no return, none is quoted.

The cost of a thousand spins is arithmetic: 1,000 spins at 10p is £100 of stakes, and the cost is £100 multiplied by 100% minus the return, rounded to the penny. Table-game figures follow exactly from the rules, with a single zero and a double zero wheel, eight-deck baccarat, a 5% commission on winning banker hands and the tie paid at 8 to 1; the blackjack figure of about 99.5% assumes basic strategy on common six-deck rules and is an approximation, because tables differ and so do players. Crazy Time’s range is the provider’s published figure for its bet spots.

Simulated sessions come from two of this site’s own models. The “Book-style” model is built to Book of Dead’s published 96.21% return and 5,000x maximum, with a win on 19.1% of spins and its feature roughly every 195 spins; the “Bass-style” model is built to Big Bass Bonanza’s published 96.71% and 2,100x, with a win on 23.8% of spins and its feature roughly every 165. Both are models of published figures, since the real pay tables are not public. Each line ran 100,000 sessions of £30 at a flat 25p, stopping when the balance could not cover another stake or at 480 spins, with the share still spinning read at 240, 360 and 480.

Bonus values use B multiplied by one minus W times one minus the return, which is the value if the play-through is completed in full; a session that runs dry first keeps less. Break-even multiples are one divided by the share the game keeps. Official statistics are the Gambling Commission’s, from the quarterly slots release of 21 May 2026 and the annual statistics of 17 September 2026, with the bingo prize share computed from the remote bingo turnover and yield in the latter. Rules and dates are the Commission’s. Brand facts are limited to ownership, offer structure, register entries and published commercial announcements, and none of them is a payout claim for any brand.

Questions about payout

Next on your bingo card

• Casino sitesThe licence, the cashier and what each game keeps, in the order your money meets them
• SlotsThe games themselves, with the published returns and what a session costs
• Best casino bonusesEvery offer type put through one formula, wagering counted
• Live dealer casinosTables and game shows, their house edges and which publish no figure
• Big Bass slotsEvery title in the series with its published return and maximum win
• BingoWhere no return is published, and what the draw actually pays