Big Bass slots UK: the complete series guide

Daniel MarshEditor at CrashKingUpdated October 2026Editorial team

The Big Bass franchise is Pragmatic Play's most successful series of slots, with 33 titles spanning the original Big Bass Bonanza (2020) through the latest releases. The series includes classic slots, Megaways variants, seasonal titles, jackpot versions, and uniquely Big Bass Crash, the only provably fair crash game in the franchise.

Where to play Big Bass slots

These UK-licensed sites have Big Bass games. Offers are for new players. 18+. T&Cs apply.

See all sites →

Game lists checked 12 October 2026.

Betnero

4.4 Big Bass Score100% matchRead review

100% Casino Bonus Up To £50 + 50 Bonus Spins

Good to know: 10x wagering and a £1 max bet. Use your spins within 48 hours.

34 Big Bass games: Big Bass Bonanza, Bigger Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000, Big Bass Hold & Spinner Show 29 more

Get bonusUK licensed

18+. New UK customers. First deposit only. Min deposit £10. Code NERO100. BeGambleAware.org. Full T&Cs

Midnite

4.3 Big Bass Score

100 Free Spins

Good to know: Bet at least £20. No wagering on spin winnings. Use the spins within 7 days.

41 Big Bass games: Big Bass Bonanza, Bigger Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000, Big Bass Hold & Spinner Show 36 more

Get bonusUK licensed

18+. New UK customers. Bet £20 on eligible slots within 14 days of sign-up. No wagering. 7 day expiry. BeGambleAware.org. Full T&Cs

NetBet

4.0 Big Bass ScoreNo wagering

Bet £10, Get 100 Free Spins

Good to know: Bet £10 on slots to unlock them. Wins from the spins go up to £100.

40 Big Bass games: Big Bass Bonanza, Bigger Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000, Big Bass Hold & Spinner Show 35 more

Get bonusUK licensed

18+. New players. Opt in and wager £10 on slots. Max win £100. Spins expire in 7 days. BeGambleAware.org. Full T&Cs

Parimatch

4.0 Big Bass Score

Wager £20, Get 150 Free Spins

Good to know: Deposit and wager £20 to unlock the spins. Use them within 7 days.

35 Big Bass games: Big Bass Bonanza, Bigger Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000, Big Bass Hold & Spinner Show 30 more

Get bonusUK licensed

18+. New UK customers. Deposit and wager £20 within 7 days. No wagering on spins. 7 day expiry. BeGambleAware.org. Full T&Cs

About the Big Bass series

The Big Bass series is developed by Pragmatic Play and Reel Kingdom, and it launched in December 2020. Today, it includes 33 titles, with the core mechanic centered on a fisherman wild that collects money fish during free spins. Retriggers can also push multipliers up to 10x.

Over the past year, the series grew by 900% in search interest in the UK, showing how quickly it has become a fan favourite.

Every Big Bass slot: RTP, max win and volatility

Title	Released	RTP	Max win	Volatility	Type
Big Bass Bonanza	Dec 2020	96.71%	2,100x	High	Classic
Bigger Bass Bonanza	Sep 2021	96.71%	4,000x	Very High	Classic
Christmas Big Bass Bonanza	Dec 2021	96.71%	2,100x		Seasonal
Big Bass Bonanza Megaways	Mar 2022	96.07%	4,000x	Very High	Megaways
Big Bass Splash	Jun 2022	96.71%	5,000x	Very High	Classic
Bigger Bass Blizzard: Christmas Catch	Nov 2022	96.08%	4,000x	High	Seasonal
Big Bass Hold & Spinner	Jan 2023	96.07%	10,000x	Very High	Hold & Spin
Club Tropicana Big Bass Bonanza	Feb 2023	96.08%	4,000x	Very High	Classic
Big Bass Day at the Races	Apr 2023	96.07%	5,000x	Very High	Classic
Big Bass Amazon Xtreme	Jun 2023	94.99%	5,000x	Very High	Classic
Big Bass Halloween	Sep 2023	96.07%	5,000x	Very High	Seasonal
Big Bass Hold & Spinner Megaways	Oct 2023	96.08%	5,000x	Very High	Megaways
Big Bass CrashCrash Game	Nov 2023	95.50%	5,000x	N/A	Crash Game
Big Bass Christmas Bash	Nov 2023	96.71%	5,000x	High	Seasonal
Big Bass Bonanza 3 Reeler	Dec 2023	96.08%	5,000x	Very High	Classic
Big Bass Return to the Races	Jan 2024	96.08%	5,000x	Very High	Classic
Big Bass Bonanza 1000	Mar 2024	96.51%	20,000x	Very High	Classic
Big Bass Halloween 2	Sep 2024	96.07%	5,000x	Very High	Seasonal
Big Bass Secrets of the Golden Lake	Oct 2024	96.08%	5,000x	Very High	Classic
Big Bass Trophy Catch	Nov 2024	96.07%	5,000x	Very High	Classic
Big Bass Xmas Xtreme	Nov 2024	96.07%	10,000x	High (5/5)	Seasonal
Big Bass Splash Free Spins	2024	96.71%	5,000x	Very High	Classic
Big Bass Reel Repeat	Aug 2025	96.07%	5,000x	Very High	Classic
Big Bass Halloween 3	Oct 2025	96.07%	5,000x	Very High	Seasonal
Big Bass Christmas Frozen Lake	Nov 2025	96.07%	5,000x	High (5/5)	Seasonal
Big Bass It's a Whopper Jackpot Bonanza	Nov 2025	92.00%	5,000x	Very High	Jackpot
Big Bass Master Classic Jackpot Bonanza	Nov 2025	92.00%	5,000x	Very High	Jackpot
Big Bass Surf's Up Jackpot Bonanza	Nov 2025	92.00%	5,000x	Very High	Jackpot
Big Bass Splash 1000	Dec 2025	96.71%	25,000x	Very High	Classic
Big Bass 3 Little Fish	Jan 2026	96.07%	5,000x	Very High	Classic
Big Bass Raceday Repeat	Mar 2026	96.07%	5,000x	Very High	Classic
Big Bass Trophy Fishing	Apr 2026	96.07%	5,000x	Very High	Classic
Big Bass Football Bonanza	May 2026	96.50%	5,000x	Very High	Classic

Big Bass Bonanza

Released: Dec 2020

RTP: 96.71%

Max Win: 2,100x

Volatility: High

Type: Classic

Bigger Bass Bonanza

Released: Sep 2021

RTP: 96.71%

Max Win: 4,000x

Volatility: Very High

Type: Classic

Christmas Big Bass Bonanza

Released: Dec 2021

RTP: 96.71%

Max Win: 2,100x

Type: Seasonal

Big Bass Bonanza Megaways

Released: Mar 2022

RTP: 96.07%

Max Win: 4,000x

Volatility: Very High

Type: Megaways

Big Bass Splash

Released: Jun 2022

RTP: 96.71%

Max Win: 5,000x

Volatility: Very High

Type: Classic

Bigger Bass Blizzard: Christmas Catch

Released: Nov 2022

RTP: 96.08%

Max Win: 4,000x

Volatility: High

Type: Seasonal

Big Bass Hold & Spinner

Released: Jan 2023

RTP: 96.07%

Max Win: 10,000x

Volatility: Very High

Type: Hold & Spin

Club Tropicana Big Bass Bonanza

Released: Feb 2023

RTP: 96.08%

Max Win: 4,000x

Volatility: Very High

Type: Classic

Big Bass Day at the Races

Released: Apr 2023

RTP: 96.07%

Max Win: 5,000x

Volatility: Very High

Type: Classic

Big Bass Amazon Xtreme

Released: Jun 2023

RTP: 94.99%

Max Win: 5,000x

Volatility: Very High

Type: Classic

Big Bass Halloween

Released: Sep 2023

RTP: 96.07%

Max Win: 5,000x

Volatility: Very High

Type: Seasonal

Big Bass Hold & Spinner Megaways

Released: Oct 2023

RTP: 96.08%

Max Win: 5,000x

Volatility: Very High

Type: Megaways

Big Bass CrashCrash Game

Released: Nov 2023

RTP: 95.50%

Max Win: 5,000x

Volatility: N/A

Type: Crash Game

Big Bass Christmas Bash

Released: Nov 2023

RTP: 96.71%

Max Win: 5,000x

Volatility: High

Type: Seasonal

Big Bass Bonanza 3 Reeler

Released: Dec 2023

RTP: 96.08%

Max Win: 5,000x

Volatility: Very High

Type: Classic

Big Bass Return to the Races

Released: Jan 2024

RTP: 96.08%

Max Win: 5,000x

Volatility: Very High

Type: Classic

Big Bass Bonanza 1000

Released: Mar 2024

RTP: 96.51%

Max Win: 20,000x

Volatility: Very High

Type: Classic

Big Bass Halloween 2

Released: Sep 2024

RTP: 96.07%

Max Win: 5,000x

Volatility: Very High

Type: Seasonal

Big Bass Secrets of the Golden Lake

Released: Oct 2024

RTP: 96.08%

Max Win: 5,000x

Volatility: Very High

Type: Classic

Big Bass Trophy Catch

Released: Nov 2024

RTP: 96.07%

Max Win: 5,000x

Volatility: Very High

Type: Classic

Big Bass Xmas Xtreme

Released: Nov 2024

RTP: 96.07%

Max Win: 10,000x

Volatility: High (5/5)

Type: Seasonal

Big Bass Splash Free Spins

Released: 2024

RTP: 96.71%

Max Win: 5,000x

Volatility: Very High

Type: Classic

Big Bass Reel Repeat

Released: Aug 2025

RTP: 96.07%

Max Win: 5,000x

Volatility: Very High

Type: Classic

Big Bass Halloween 3

Released: Oct 2025

RTP: 96.07%

Max Win: 5,000x

Volatility: Very High

Type: Seasonal

Big Bass Christmas Frozen Lake

Released: Nov 2025

RTP: 96.07%

Max Win: 5,000x

Volatility: High (5/5)

Type: Seasonal

Big Bass It's a Whopper Jackpot Bonanza

Released: Nov 2025

RTP: 92.00%

Max Win: 5,000x

Volatility: Very High

Type: Jackpot

Big Bass Master Classic Jackpot Bonanza

Released: Nov 2025

RTP: 92.00%

Max Win: 5,000x

Volatility: Very High

Type: Jackpot

Big Bass Surf's Up Jackpot Bonanza

Released: Nov 2025

RTP: 92.00%

Max Win: 5,000x

Volatility: Very High

Type: Jackpot

Big Bass Splash 1000

Released: Dec 2025

RTP: 96.71%

Max Win: 25,000x

Volatility: Very High

Type: Classic

Big Bass 3 Little Fish

Released: Jan 2026

RTP: 96.07%

Max Win: 5,000x

Volatility: Very High

Type: Classic

Big Bass Raceday Repeat

Released: Mar 2026

RTP: 96.07%

Max Win: 5,000x

Volatility: Very High

Type: Classic

Big Bass Trophy Fishing

Released: Apr 2026

RTP: 96.07%

Max Win: 5,000x

Volatility: Very High

Type: Classic

Big Bass Football Bonanza

Released: May 2026

RTP: 96.50%

Max Win: 5,000x

Volatility: Very High

Type: Classic

Series updated regularly. New titles release approximately monthly. RTP figures shown at highest available setting.

Big Bass Crash: the franchise's only crash game

Big Bass Crash is the only title in the series that is not a slot. It is a provably fair crash game developed by Pragmatic Play, launched November 2023.

Instead of spinning reels, players set a multiplier and cash out before the fisherman dives. The core Big Bass visual identity carries through with the fishing theme and familiar symbols.

It is available at UK-licensed operators including Betnero, Midnite, NetBet, Parimatch, Sky Vegas, 888 Casino, bet365, MrQ, Casumo, Paddy Power, and William Hill.

Want a faster game? See where to play Big Bass Crash, which swaps the reels for a rising multiplier.

Read Our Full Big Bass Crash Review

Best Big Bass slots by feature

We ranked six Big Bass slots by RTP, max win and bonus features. See the full list on our Best Big Bass Slots 2026 page. For the festive games, see our Best Christmas Big Bass Slots.

Highest RTP

Big Bass Bonanza and Big Bass Splash sit at 96.71% RTP.

Biggest max win

Big Bass Splash 1000 has a 25,000x max win, and Big Bass Bonanza 1000 reaches 20,000x.

Best for Megaways

Big Bass Bonanza Megaways and Hold & Spinner Megaways are the standout options for Megaways fans.

Best jackpot version

Jackpot variants have 92% RTP, which is lower than standard versions. If you want the big jackpot story, factor in the RTP drop.

Where to play Big Bass slots in the UK

Every site below is UK licensed and has Big Bass slots. Most also carry Big Bass Crash, but game lists change. Check the site has the game you want before you sign up.

UK licensed sites onlyOffer terms read in fullSame scoring rules for every siteHow we rate operators

Midnite

4.3 Big Bass Score

100 Free Spins

Good to know: Bet at least £20. No wagering on spin winnings. Use the spins within 7 days.

41 Big Bass games: Big Bass Bonanza, Bigger Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000, Big Bass Hold & Spinner Show 36 more

Get bonusUK licensed

18+. New UK customers. Bet £20 on eligible slots within 14 days of sign-up. No wagering. 7 day expiry. BeGambleAware.org. Full T&Cs

NetBet

4.0 Big Bass ScoreNo wagering

Bet £10, Get 100 Free Spins

Good to know: Bet £10 on slots to unlock them. Wins from the spins go up to £100.

40 Big Bass games: Big Bass Bonanza, Bigger Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000, Big Bass Hold & Spinner Show 35 more

Get bonusUK licensed

18+. New players. Opt in and wager £10 on slots. Max win £100. Spins expire in 7 days. BeGambleAware.org. Full T&Cs

Parimatch

4.0 Big Bass Score

Wager £20, Get 150 Free Spins

Good to know: Deposit and wager £20 to unlock the spins. Use them within 7 days.

35 Big Bass games: Big Bass Bonanza, Bigger Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000, Big Bass Hold & Spinner Show 30 more

Get bonusUK licensed

18+. New UK customers. Deposit and wager £20 within 7 days. No wagering on spins. 7 day expiry. BeGambleAware.org. Full T&Cs

Sky Vegas

4.0 Big Bass Score70 free spins with no deposit

70 Free Spins + Deposit and Get 200 More

Good to know: Spend £10 to get the other 200. Use your spins within 7 days.

30 Big Bass games: Big Bass Bonanza, Bigger Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000, Big Bass Hold & Spinner Show 25 more

Get bonusUK licensed

18+. New Sky Betting and Gaming customers. Deposit and spend £10 for the extra 200 spins. No wagering on spin winnings. 7 day expiry. BeGambleAware.org. Full T&Cs

Unibet

3.9 Big Bass Score

300 Free Spins

Good to know: Stake £30 on slots to unlock the spins. Wins from the spins have 10x wagering. Use your spins within 48 hours.

38 Big Bass games: Big Bass Bonanza, Bigger Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000, Big Bass Hold & Spinner Show 33 more

Get bonusUK licensed

18+. New GB customers. Opt in and stake £30 on slots. 10x wagering on spin winnings. Spins expire in 48 hours. BeGambleAware.org. Full T&Cs

888 Casino

3.9 Big Bass Score

100% Bonus Up To £100

Good to know: Deposit at least £10. Wager the bonus 10 times within 5 days. Wins go up to £100.

21 Big Bass games: Big Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000, Big Bass Hold & Spinner, Big Bass Football Bonanza Show 16 more

Get bonusUK licensed

18+. New UK customers. Min deposit £10. 10x wagering within 5 days. Max win £100. BeGambleAware.org. Full T&Cs

bet365

Top pick3.9 Big Bass Score

Up To 500 Free Spins

Good to know: Deposit at least £10. No wagering on spin wins. Use your spins within 7 days.

37 Big Bass games: Bigger Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000, Big Bass Hold & Spinner, Big Bass Football Bonanza Show 32 more

Get bonusUK licensed

18+. New UK customers. Min deposit £10. No wagering on spin winnings. Spins expire in 7 days. BeGambleAware.org. Full T&Cs

MrQ

3.9 Big Bass Score

100 Free Spins

Good to know: Deposit £10 to unlock the spins. Use them within 48 hours.

21 Big Bass games: Big Bass Bonanza, Bigger Bass Bonanza, Big Bass Splash, Big Bass Amazon Xtreme, Big Bass Bonanza 3 Reeler Show 16 more

Get bonusUK licensed

18+. New UK customers. Min deposit £10. No wagering. Spins expire in 48 hours. BeGambleAware.org. Full T&Cs

Betfair Casino

3.8 Big Bass Score50 free spins with no deposit

50 Free Spins, Plus 50 More When You Deposit and Spend £10

Good to know: You get 50 spins when you sign up with code CASF51, with no deposit. Spend £10 on Jackpot King games for 50 more. Use them within 7 days.

29 Big Bass games: Big Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000, Big Bass Hold & Spinner, Big Bass Amazon Xtreme Show 24 more

Get bonusUK licensed

18+. New casino customers in the UK only. Register with code CASF51 and opt in. 50 free spins worth 10p on selected Jackpot King games. Spend £10 on eligible Jackpot King games for 50 more. E-wallet deposits do not count. Spins expire after 7 days. T&Cs apply. Full T&Cs

Casumo

3.8 Big Bass Score

50% Bonus Up To £100

Good to know: Deposit at least £20. Wager the bonus 10 times. Use it within 7 days.

32 Big Bass games: Big Bass Bonanza, Bigger Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000, Big Bass Hold & Spinner Show 27 more

Get bonusUK licensed

18+. New UK customers. Min deposit £20. 10x wagering on the bonus. Bonus valid for 7 days. BeGambleAware.org. Full T&Cs

Paddy Power

3.7 Big Bass Score60 free spins with no deposit

60 Free Spins + Get 200 More

Good to know: 60 free spins with no deposit. Bet £10 for 200 more. Use your spins within 7 days.

18 Big Bass games: Big Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000, Big Bass Amazon Xtreme, Big Bass Blast Show 13 more

Get bonusUK licensed

18+. New UK customers. Code PGCDE1. Deposit and bet £10 for 200 more spins. No wagering. 7 day expiry. BeGambleAware.org. Full T&Cs

William Hill

3.6 Big Bass Score

200 Free Spins

Good to know: Use code WHV200. Spin wins have 10x wagering and go up to £30. Use your spins within 72 hours.

26 Big Bass games: Big Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000, Big Bass Hold & Spinner, Big Bass Football Bonanza Show 21 more

Get bonusUK licensed

18+. New UK customers. Code WHV200. Min deposit £10. 10x wagering. Max win £30. Spins expire in 72 hours. BeGambleAware.org. Full T&Cs

Big Bass slots: frequently asked questions

How many Big Bass slots are there?

There are 33 Big Bass titles released by Pragmatic Play and Reel Kingdom as of 2026, with new titles releasing approximately monthly. The series includes classic slots, Megaways variants, seasonal titles, jackpot versions, and Big Bass Crash, the only crash game in the franchise.

What is the best Big Bass slot?

Big Bass Bonanza and Big Bass Splash are the most popular, both with 96.71% RTP. For maximum win potential, Big Bass Splash 1000 offers 25,000x max win, the highest in the series.

Are Big Bass slots available in the UK?

Yes. All Big Bass slots are available at UK-licensed casinos including Betnero, Midnite, NetBet and Parimatch. All titles listed on this page are playable for real money in the UK.

What is Big Bass Crash?

Big Bass Crash is the only non-slot title in the Big Bass series. It is a provably fair crash game where players set a cashout multiplier and try to exit before the fisherman dives. It is available at several major UKGC operators and has a 95.50% RTP.

What RTP do Big Bass slots have?

Most Big Bass slots have an RTP of 96.07% or 96.71%. The jackpot variants (It's a Whopper, Master Classic, Surf's Up) have a lower 92% RTP due to the progressive jackpot contribution.