High RTP slots UK

RTP is the long-run price of a slot. These are seven of Britain's most played, ranked by it.

Ryan JessopBy Ryan Jessop. Last checked .

Key takeaways

  • Big Bass Bonanza leads at 96.71%.
  • Five have a confirmed default above 96%.
  • Casinos may run lower versions.
  • RTP is cost, not luck.

In brief: Big Bass Bonanza has the highest confirmed default RTP of the seven, at 96.71%.

Ranked by RTP

RankSlotDeveloperDefault RTPHouse edgeCost per £100 stakedVolatility
1Big Bass BonanzaPragmatic Play96.71%3.29%£3.29High
2Gates of OlympusPragmatic Play96.50%3.50%£3.5High
3Book of DeadPlay'n GO96.21%3.79%£3.79High
4Fishin' FrenzyBlueprint Gaming96.12%3.88%£3.88Medium to high
5StarburstNetEnt96.09%3.91%£3.91Low
6Fluffy FavouritesEyecon95.39%4.61%£4.61High

Sweet Bonanza is unranked: sources quote 96.48% and 96.51%.

Versions

SlotDefaultLower settings
Big Bass Bonanza96.71%95.67%
Gates of Olympus96.50%95.51%, 94.5%
Starburst96.09%Down to about 90%
Fluffy Favourites95.39%93.29%

RTP is not volatility

Starburst and Book of Dead return almost the same and feel nothing alike. See RTP and house edge.

Where to play

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

Coral Casino logo

Coral Casino 4.3 out of 5

Bet £10 on slots, get 100 free spins

No wageringFree spins

Claim at Coral (advert, opens in a new tab)18+. New customers. T&Cs apply.
Wagering
None
Minimum
£10
Time limit
48 hours to accept, then 7 days
Worked value
100 spins at £0.10 (£10 in spins)

Significant terms: 18+. New players only. Offer runs 01/10/2026 to 01/02/2027. Deposit (certain types excluded) and bet £10+ on slot games to get 100 free spins (selected games, £0.10 each, 48 hrs to accept, valid 7 days). No wagering on free spin winnings. Deposits by Neteller, PayPal, Paysafe, Skrill, prepaid cards and certain debit cards do not qualify. Restrictions and T&Cs apply. BeGambleAware.org

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

Ladbrokes Casino logo

Ladbrokes Casino 4.2 out of 5

Play £10 on slots, get up to 500 free spins

No wageringFree spins

Claim at Ladbrokes (advert, opens in a new tab)18+. New customers. T&Cs apply.
Wagering
None
Minimum
£10
Time limit
Claim daily for 10 days; each batch valid 7 days
Worked value
Up to 500 spins at £0.10 (up to £50 in spins)

Significant terms: 18+. New customers only, from 14/11/25 until further notice. Certain deposit methods excluded. Deposit and spend £10+ on slots for 50 free spins a day during the first 10 days after first deposit and registration (max 500, £0.10 each, selected games, claim before 23:59 each day, valid 7 days). No wagering. Prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers deposits do not qualify. Restrictions and T&Cs apply. BeGambleAware.org

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

PlayOJO logo

PlayOJO 4.2 out of 5

80 free spins, no wagering

No wageringFree spins

Claim at PlayOJO (advert, opens in a new tab)18+. New customers. T&Cs apply.
Wagering
None
Minimum
£10
Time limit
See offer terms
Worked value
80 spins at £0.10 (£8 in spins)

Significant terms: 18+. First deposit only. Minimum deposit £10. 80 free spins on Big Bass Bonanza, £0.10 each. No wagering requirements; winnings paid in cash. Cannot be used with any other offer. Only available to players who arrive through the designated offer link. Full T&Cs apply. BeGambleAware.org

Read the PlayOJO review Licence: Skill On Net Limited, UKGC account 39326. Offer checked 5 October 2026.

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Slots and lists: Jackpot slots UK, Big Bass Bonanza UK and Slot sites UK.

Offer terms dated 5 October 2026, from each casino's published conditions. Other casino details are reported by independent reviews. How we check. 18+. Free help: 0808 8020 133 or safer gambling.

Frequently asked questions

Which slot has the highest RTP?

Of these, Big Bass Bonanza.

What is a good RTP?

About 96%.

Can casinos change RTP?

They choose among versions.

Does high RTP mean more wins?

No.

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