Best payout slots UK

Of our seven, Big Bass Bonanza has the highest default RTP at 96.71%, ahead of Gates of Olympus at 96.50%.

By Ryan Jessop. Last checked 5 October 2026.

Key takeaways

Of our seven, Big Bass Bonanza has the highest default RTP at 96.71%, ahead of Gates of Olympus at 96.50%.
RTP is how much; volatility is how unevenly.
Casinos can run lower versions.
Slots are capped at £5 a spin in Britain.

Short answer: Of our seven, Big Bass Bonanza has the highest default RTP at 96.71%, ahead of Gates of Olympus at 96.50%.

Payout and volatility

RTP is how much; volatility is how unevenly.

The numbers

Slot	Default RTP	Volatility	Max win
Big Bass Bonanza	96.71%	High	2,100x
Gates of Olympus	96.50%	High	5,000x
Book of Dead	96.21%	High	5,000x
Fishin' Frenzy	96.12%	Medium to high	5,000x
Starburst	96.09%	Low	500x
Fluffy Favourites	95.39%	High	5,000x
Sweet Bonanza	Varies by version (96.48% to 96.51% quoted)	High	21,100x

Check yours

Casinos can run lower versions.

In more detail

A difference of one point of RTP sounds small and is not: it is £1 in every £100 staked. Between the highest and lowest of our seven the gap is 1.32 points. Volatility decides how that return arrives. Big Bass Bonanza returns most and is highly volatile, so sessions vary widely; Starburst returns slightly less and pays small wins constantly.

Where to play

Ad 18+ only. We may earn commission from these links. Advertiser disclosure

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Read the Ladbrokes review Licence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.

Key terms on this page

Default RTP: The return a developer publishes for a slot's standard version; casinos may run a lower one.
Max win: The largest possible win on one spin, as a multiple of the stake.
Volatility: How a slot spreads its payouts. See volatility explained.

Keep reading: Online slots, Slot glossary, Play'n GO slots.

Something this page does not answer?

Email hello@bestslots.uk.com and we will answer.

Slot figures are developers' published defaults; the version at your casino can differ, so check the game's help screen. Offer terms dated 5 October 2026. Scores are desk-based. How we rate. 18+. Free help: 0808 8020 133 or safer gambling.

Play safely

Slots are fast, and they are designed so the house wins over time. Decide what the session is worth to you before you open a game, set a deposit limit, and stop when the money is gone. Free, confidential help is available from the National Gambling Helpline on 0808 8020 133. Our safer gambling page lists the tools and services.

Frequently asked questions

Which slots have the best payout?

Of our seven, Big Bass Bonanza has the highest default RTP at 96.71%, ahead of Gates of Olympus at 96.50%.

Are these slot sites licensed?

Yes, all five, by the Gambling Commission.

What is the maximum stake on UK slots?

£5 a spin, or £2 for ages 18 to 24.

Can I try slots free?

Usually, in demo mode after age verification.

Do I have to verify my identity?

Yes. UK casinos must verify age and identity before you play.

Can I set a spending limit?

Yes. Every licensed site offers deposit limits by day, week or month.

What if I have a complaint?

Use the casino's complaints process; after eight weeks you can go to its independent dispute resolution service, free.

Are the scores based on real play?

No. They are desk-based, from published terms and independent reviews.

Does commission affect the order?

No. Sites are ordered by our published scores.

Can I join more than one slot site?

Yes; take one welcome offer at a time and set a limit at each.

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