Game guide
High RTP slots in 2026: how to find the best paying slot games in the UK
RTP explained plainly, a table of published RTPs for popular slots and the one check that matters: which version your casino runs.
High RTP slots are games whose return to player, the share of all stakes the game is designed to pay back over millions of spins, sits at the upper end of the range, roughly 96% and above. The catch is that many popular slots come in several RTP versions, so the best paying slot games in the UK are not just the right titles: they are the right titles running the right build at your casino.
Below is what RTP does and does not tell you, a table of published figures for well-known games and a simple way to check the number before you play.
On this page
What RTP means in practice
Amazon Slots' own guide gives a clear example: a slot with 96% RTP returns £96 for every £100 staked over its lifetime, but results in any single session are completely random. RTP is a long-run average across all players. It does not predict a session, it does not "catch up" after losses, and it does not tell you how often the game pays. That second job belongs to volatility: a low-volatility game pays small amounts often, a high-volatility game pays rarely but can pay more.
The gap between RTPs adds up over many spins. At the same total stake, a 96% game is designed to keep £4 per £100 over time and a 94% game £6, half as much again.
Published RTPs of popular slots
The figures below are the providers' default or published values. The volatility column comes from providers or databases, which sometimes disagree.
| Slot | Provider | Published RTP | Volatility |
|---|---|---|---|
| Big Bass Bonanza | Pragmatic Play | 96.71% | High |
| Gates of Olympus | Pragmatic Play | 96.50% | High |
| Sugar Rush | Pragmatic Play | 96.50% | High |
| Sweet Bonanza | Pragmatic Play | 96.48% | Medium-high |
| Eye of Horus | Blueprint Gaming | 96.31% (default) | Medium |
| Book of Dead | Play'n GO | 96.21% | High |
| Fishin' Frenzy | Blueprint Gaming | 96.12% (default) | High |
| The Greatest Catch | Evoplay | 96.09% | Medium-high |
| Starburst | NetEnt | 96.08% | Low |
| Cleopatra | IGT | 95.02% | Medium |
| Rainbow Riches | Barcrest | 95.00% | Medium |
| Mr. Vegas | Betsoft | 93.60% | Medium |
Even within this list the spread from top to bottom is more than three percentage points, and the classic pub-style games sit lower than most modern video slots.
The same slot, different RTP: why the version matters
Providers commonly supply one game at several RTP settings and let the operator choose. Blueprint publishes Eye of Horus builds at 96.31%, 94%, 93%, 92.04% and 90.25%, and Fishin' Frenzy at 96.12%, 94%, 93%, 92% and 90%. Play'n GO and NetEnt also note that lower builds of Book of Dead and Starburst exist. So two casinos can show the same game with the same graphics and a six-point difference in return.
The fix is to check the number yourself. In GB the RTP is normally in the game's help or information screen; Amazon Slots' terms say that in most cases the RTP for each game is listed within its information or help pages. Open the game, find the "i" or menu icon and look for "return to player" or "theoretical return". If the figure is lower than the provider's default, the casino has picked a lower build.
What "best paying slot sites" really means
No GB casino can change the odds of a certified game, but each one chooses which RTP builds to run, which games to feature and what terms to attach to bonuses. A site that runs default builds across its lobby will, over time, return more than one that runs lower versions of the same titles. That is a fair way to judge the best paying slot sites in the UK, and it is more useful than a headline "payout percentage". Our best payout casinos page covers how operators publish those figures.
RTP outside slots
Table games have their return fixed by the rules rather than by a build setting. Single-zero roulette has 37 pockets and pays 35 to 1 on a single number, which gives the house an edge of about 2.70%; the double-zero wheel has 38 pockets and roughly twice the edge. In baccarat the banker bet carries the smallest edge despite the commission. See our pages on online roulette and baccarat for the details.
RTP and GB rules
A high RTP does not change the rules on play. Online slots in Great Britain have a maximum stake of £5 per spin, or £2 if you are 18-24, spins cannot be faster than 2.5 seconds, and autoplay is banned. Since 19 January 2026 wagering on bonus funds is capped at 10x, but many offers still restrict which games count, and high-RTP titles are a common exclusion in bonus terms.
18+ only. A higher RTP lowers the expected cost of play; it does not make winning likely in any session. Our responsible gambling page covers limits and support.
UK-licensed casinos, ranked by our score
Order = score out of 10. Every operator holds a Gambling Commission licence.
| # | Casino | Score | Welcome offer and significant terms | Payments | Links |
|---|---|---|---|---|---|
| Place 1 |  Amazon SlotsJumpman Gaming Limited | Score: 7.7 out of 10, good | Chance to win up to 500 bonus spins on Starburst Significant terms 18+, new players, £10 min fund; bonus spins winnings subject to 10x wagering; max bonus conversion equal to lifetime deposits up to £250; only bonus wagers count |
| Visit Amazon Slots (opens the operator site in a new tab)Read the review: Amazon Slots |
| Place 2 |  Pub CasinoL & L Europe Limited | Score: 7.4 out of 10, good | 50 cash spins on Octobeer Fortunes after depositing and wagering £10 Significant terms Deposit and wager £10; activate before depositing; spins £0.20 each, winnings paid as cash, no max cash out; Skrill deposits excluded; spins expire in 48 hours |
| Visit Pub Casino (opens the operator site in a new tab)Read the review: Pub Casino |
| Place 3 |  LuckyMateAnakatech Interactive Limited | Score: 7.4 out of 10, good | 50 bonus spins on Big Bass Splash when you bet £10 on slots Code MATE50 Significant terms £10 min deposit; £10 in slot bets; 50 spins at £0.10 (£5 total); x1 wagering, £1 max bet contribution; £100 max cashout from winnings; 7-day expiry; selected payment methods only | Not listed | Visit LuckyMate (opens the operator site in a new tab)Read the review: LuckyMate |
| Place 4 |  Magical VegasRank Interactive (Gibraltar) Limited | Score: 8.1 out of 10, very good | 100 bonus spins after a £10 deposit and £10 stake Significant terms Min deposit £10 and £10 stake; Paysafecard excluded; 10x wagering; max win £200; spins on The Goonies Quest for Treasure Jackpot King |
| Visit Magical Vegas (opens the operator site in a new tab)Read the review: Magical Vegas |
| Place 5 |  Bella CasinoRank Interactive (Gibraltar) Limited | Score: 7.9 out of 10, good | 100 bonus spins on Kong 3 Even Bigger Bonus when you deposit and stake £10 Significant terms New players; min deposit £10 (Paysafecard excluded) and £10 stake on Kong 3 Even Bigger Bonus; 10x wagering; max win £200 |
| Visit Bella Casino (opens the operator site in a new tab)Read the review: Bella Casino |
| Place 6 |  Mecca GamesRank Interactive (Gibraltar) Limited | Score: 7.8 out of 10, good | £20 bonus and 50 bonus spins after a £10 deposit Significant terms Min deposit £10, Paysafecard excluded; £20 bonus 10x wagering on selected games, max win £50; 50 bonus spins on Kong 3 Even Bigger Bonus, 10x wagering, max win £50 |
| Visit Mecca Games (opens the operator site in a new tab)Read the review: Mecca Games |
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Questions readers ask
What is a good RTP for an online slot?
Around 96% or higher is at the upper end for a modern video slot. Many classic and jackpot games sit lower. Check the figure at your casino, because the same game can run at several settings.
Which slot has the highest RTP?
Among the popular games covered on this site, Big Bass Bonanza publishes the highest default figure at 96.71%. Your casino may run a different version, so check the game's info panel.
Can a casino change a slot's RTP?
It cannot alter a certified game, but it can choose which RTP build the provider supplies. That is why one title can show different figures at different casinos.
Does a high RTP mean I will win more often?
No. How often a game pays is set by its volatility. RTP is a long-run average across millions of spins and says nothing about a single session.