Ultimate Guide to Big Bass Bonanza Slots: Reviews & Free Demos

34 Big Bass Slots Free Spins Offers - Updated April 2025

With Pragmatic Play’s Big Bass slots being so popular at slot and casino sites in the UK particularly, some games in the series are now available across UK arcades and bingo halls.

As a result, you’ll find many offering free spins when you sign up. These welcome offers consist of no deposit free spins, no wager free spins and when you deposit a certain amount (including a match deposit bonus).

Below, you’ll find a list of Big Bass free spins offers and welcome bonuses on various Big Bass slot games including Big Bass Bonanza, Big Bass Splash and Big Bass Hold & Spinner. Brace yourself, there are 34 to choose from!

Overview of the Big Bass Slot Series

The Big Bass slot range stands out for its fishing theme and ever-expanding range of games, which has consistently drawn players into its aquatic world. The series has grown significantly, marking its importance in Pragmatic Play's extensive portfolio. Each game offers unique features, maintaining the series' popularity and demonstrating the developer's commitment to innovation.

The Evolution of Big Bass Slots

The Big Bass series has seen more than a dozen releases since its inception, starting with the original Big Bass Bonanza in December 2020. Following its success, Pragmatic Play expanded the series to include variations like Big Bass Bonanza Megaways and Christmas-themed slots such as Big Bass Christmas Bash, showcasing the series' adaptability and appeal.

Big Bass Slots by Release Date

It all started on the 14th of December 2020 when Big Bass Bonanza was the first release in the series. It would take 276 days until 16th September 2021, for release two, Bigger Bass Bonanza, to appear. Since then, they have been coming at a more consistent rate.

Big Bass Bonanza Release Date Facts

• The longest period between Big Bass Releases is 276 between the first and second Big Bass games. 
• The shortest period between games was just 14 days with Big Bass Bonanza Megaways released on the 18th of November 2021 and Christmas Big Bass Bonanza released on the 2nd of December 2021. 
• 2024 saw the most games published, with a total of 7 releases. 
• 15 titles have been released on Mondays, with 10 landing on Thursdays. 

Big Bass Bonanza Max Wins Comparison?

What is the most you can win on Big Bass Bonanza? Well, that depends on the maximum win levels and the stake. here is a table with all the details on staking and max win levels.

Max win potential ranges from 2,100 x bet at the bottom end with the debut Big Bass Bonanza, Christmas Big Bass Bonanza and most recently Big Bass Halloween right up the largest Big Bass max win of 20,000 x bet available on Big Bass Bonanza 1000 and Big Bass Hold and Spinner Megaways.

The most you can win at minimum stake play on Big Bass Bonanza games is £4,000 from a 20p stake on Big Bass Hold and Spinner Megaways, and of course, that of course rises to some £5,000,000 if playing the maximum £250 stake in the UK. Imagine!

Big Bass RTPs (Return to Player)

Not all Big Bass slot games have the same return to player, with the range covering the highest at initial release of Big Bass Bonanza at 96.71% with the lowest in some of the more recent releases like Big Bass Amazon Xtreme and Big Bass Halloween.

Big Bass Volatility

Big Bass Bonanza, the original release in 2020, came with a self score of 4/5 (Medium-High) for volatility. Since then, only 4 further games have had that score with the remainder having the highest volatility score of 5/5. 

In my opinion, the difference is barely detectable and I'd be surprised if any slot player of any experience would be able to differentiate between one game or another.

Big Bass OLBG Ratings

Here at OLBG we write slot game reviews and score them out of 5 so, whenever a Big Bass game is reviewed it will be added to the table below. The highest so far is Bigger Bass Bonanza at 4.5/5 and the lowest so is Big Bass Halloween at 2.6/5.

Every Big Bass Slot Game

Here, we have the basic information of every Big Bass slot game released to date. To learn more about each game, click/press on the image to read the complete review from a team of online slots experts and play the free slot demos. 

25. Big Bass Bonanza 1000

Big Bass Bonanza 1000 Slot

Rating: 4/5

• RTP: 96.51%
• Max Win: 20,000x
• Volatility: Very High
• Stakes: 10p to £5
• Release Date: 24 April 2025

Released in April 2025, Big Bass Bonanza 1000 sees Big Bass Bonanza meet the 1000 series. Very similar other games in the Big Bass slots series, it's played on 5 reels and 10 paylines from 10p a spin. In the free spins, Fisherman Wilds collect fish money symbols which are worth up to 1,000 x your total bet. Every 4th Fisherman Wild gives you more free spins and applies a win multiplier up to 10x to collected fish money symbols. With a 96.51% RTP rate, this game offers 20,000 x bet max wins (joint top with Big Bass Hold & Spinner Megaways). 

24. Big Bass Return to the Races

Big Bass Return to the Races Slot

Rating: 2.8/5

• RTP: 96.07%
• Max Win: 5,000x
• Volatility: Very High
• Stakes: 10p to £5
• Release Date: 24 February 2025

Released in late February 2025, Big Bass Return to the Races isn't a sequel to Big Bass Day at the Races. It's a horse racing clone of Big Bass Secrets of the Golden Lake. With 5 reels and 10 paylines, it comes with a Free Spins feature where you pick from cards to play the regular free spins or the Gold Cup version. In the regular version, Wilds collect Horse Money values with every 4th Wild awarding extra free spins and increasing the Horse Money multiplier up to 10x. In the Golden Cup free spins, blanks, Wilds and Horse Money symbols land to increase your chances of landing the 5,000 x bet max wins available. 

23. Bigger Bass Splash

Bigger Bass Splash Slot

Rating: 3.3/5

• RTP: 96.5%
• Max Win: 5,000x
• Volatility: Very High
• Stakes: 10p to £5
• Release Date: 3 February 2025

Released in February 2025, you have the Bigger Bass Splash slot game. With 5 reels and 10 paylines, it has a party twist on the classic fishing theme but has all the same gameplay as Bigger Bass Bonanza and Big Bass Splash. With a 96.5% RTP rate and 5,000 times bet max wins, I would have hoped that Pragmatic Play went in a different direction to kick off 2025 in style. 

22. Big Bass Bonanza 3 Reeler

Big Bass Bonanza 3 Reeler Slot

Rating: 3.2/5

• RTP: 96.50%
• Max Win: 5,000x
• Volatility: High
• Stakes: 10p to £5
• Release Date: 16 December 2024

Released in December 2024, Big Bass Bonanza 3 Reeler is the first game in the series to have 3 reels and 5 paylines. With Money symbols, stacked symbols and a random Hook extra, there is the usual Free Spins feature where Wilds collect Money symbols and can award additional free spins and multipliers up to 10x. Max wins can reach 5,000 times your total bet. 

21. Big Bass Xmas Xtreme

Big Bass Xmas Xtreme Slot

Rating: 3.8/5

• RTP: 96.07%
• Max Win: 10,000x
• Volatility: High
• Stakes: 10p to £5
• Release Date: 18 November 2024

Released in November 2024, the Big Bass Xmas Xtreme slot shows the fisherman in Antarctica fishing in the ice on a Christmas adventure. The Free Spins feature is packed with exciting layers, including a picker feature, modifiers and a multiplier meter. Max wins can reach 5,000 times your total bet per free spin. 

20. Big Bass Halloween 2

Big Bass Halloween 2 Slot

Rating: 3.5/5

• RTP: 96.71%
• Max Win: 5,000x
• Volatility: High
• Stakes: 10p to £5
• Release Date: 21 October 2024

Released in October 2024, Big Bass Halloween 2 sees Pragmatic Play's favourite fisherman return, this turn with a chainsaw. This supercharged/horror sequel to Big Bass Splash features dead bass, infected bugs and a Free Spins feature with plenty of extras and modifiers. High volatility, the RTP rate is 96.71% and the max win potential is 5,000 times your total bet. 

19. Big Bass Vegas Double Down Deluxe

Big Bass Vegas Double Down Deluxe Slot

Rating: 3.5/5

• RTP: 96.5%
• Max Win: 5,000x
• Volatility: Very High
• Stakes: 10p to £5
• Release Date: 12 September 2024

Released in September, 2024, Big Bass Vegas Double Down Deluxe overhauls the colour scheme and Free Spins feature for the series. It features neon, Vegas-style imagery and two fishermen in the bonus round. Following Arthurian legend and Horse racing, fishing combines with yet another theme in this endless series of slots from Pragmatic Play. 

18. Big Bass Mission Fishin'

Big Bass Mission Fishin' Slot

Rating: 3.3/5

• RTP: 96.5%
• Max Win: 5,000x
• Volatility: Very High
• Stakes: 10p to £5
• Release Date: 17 June 2024

Released in May 2024, Big Bass Mission' Fishin has a spy/James Bond feel. With 5 reels and 10 paylines, it benefits from a high 96.5% RTP rate. The focus is on the Free Spins feature where there are plenty of modifiers which are selecting before playing the free spins. Wilds collect Money symbols and every 4th Wild retriggers the feature with extra free spins and a Money symbol multiplier up to 10x. Max wins can reach 5,000 times your total bet. 

17. Big Bass Bonanza Reel Action

Big Bass Bonanza Reel Action Slot

Rating: 3.4/5

• RTP: 96.5%
• Max Win: 2,100x
• Volatility: Medium to High
• Stakes: 10p to £5
• Release Date: 27 May 2024

Released in May 2024, Big Bass Bonanza Reel Action is a 5 reel, 10 payline game. Again, the main attraction is the Free Spins feature where Fisherman Wilds collect Fish Money values. With every 4th Fisherman Wild collected awarding more free spins and Fish Money multipliers, it comes with an above-average RTP rate of 96.5% and 2,100 times bet max wins. 

16. Big Bass Secrets of the Golden Lake

Big Bass Secrets of the Golden Lake Slot

Rating: 3.4/5

• RTP: 96.07%
• Max Win: 5,000x
• Volatility: Very High
• Stakes: 10p to £5
• Release Date: 8 April 2024

Released in April 2024, Big Bass Secrets of the Golden Lake is another hint at the future of Big Bass slot games. It combines the original concept with an Arthurian Legend twist. With Day at the Races' previous merging with horse racing, are we witnessing the roadmap where every theme is open game for Big Bass collaborations? I think so. 

15. Big Bass Day at the Races

Big Bass Day at the Races Slot

Rating: 4.1/5

• RTP: 96.07%
• Max Win: 10,000x
• Volatility: Very High
• Stakes: 10p to £5
• Release Date: 7 March 2024

Just in time for the Cheltenham Festival, Pragmatic Play merge Big Bass with horse racing for the Big Bass Day at the Races slot. A reskin of the Big Bass Amazon Xtreme game, I like how Pragmatic has managed to combine slots with what OLBG is known for (horse racing). High volatility, it comes with 10,000 times bet max win potential. 

14. Big Bass Floats My Boat

Big Bass Floats My Boat Slot

Rating: 2.8/5

• RTP: 96.07%
• Max Win: 5,000x
• Volatility: High
• Stakes: 10p to £5
• Release Date: 12 February 2024

Will the ideas ever end? The Big Bass series get an update in Big Bass Floats My Boat. There isn't a lot of difference in this game but it keep the series tripping along with the first Big Bass release of 2024. Max win potential can reach 5,000 times your total bet. 

13. Big Bass Christmas Bash

Big Bass Christmas Bash Slot

Rating: 3.3/5

• RTP: 96.71%
• Max Win: 5,000x
• Volatility: High
• Stakes: 10p to £5
• Release Date: 23 November 2023

Christmas is back with the Big Bass slot theme as Big Bass Christmas Bash was unleashed in time for the 2023 festive period. When you are feeling festive and want to inject some of that into your slot play, Big Bass Christmas Bash slot serves it up. It has a high 96.71% RTP rate, 5,000 times bet max wins and plenty of festive cheer. 

12. Big Bass Halloween

Big Bass Halloween Slot

Rating: 2.6/5

• RTP: 96.06%
• Max Win: 2,100x
• Volatility: Medium-High
• Stakes: 10p to £5
• Release Date: 23 October 2023

It has to happen, Pragmatic Play keeps coming with holiday season versions of the Big Bass slot classic and this time, its Halloween for a spooky fishing trip. I dreaded playing the Big Bass Halloween slot and it was exactly what I expected it to be. Basically, it's a spooky version of the original Big Bass Bonanza as it offers the same max win potential but a much lower RTP rate of 96.06%. 

11. Big Bass Hold & Spinner Megaways

Big Bass Hold & Spinner Megaways Slot

Rating: 4.2/5

• RTP: 96.70%
• Max Win: 20,000x
• Volatility: High
• Stakes: 20p to £5
• Release Date: 28 August 2023

My favourite Big Bass game to date, although a little less easy on the eye and a bit clunky, the extension to Big Bass Hold and Spinner Megaways was a masterstroke with double feature options. With a 96.7% RTP rate, it has 6 reels and up to 147,465 ways to win. Importantly, it's the highest paying Big Bass slot game with 20,000 times bet max wins. 

10. Big Bass Amazon Xtreme

Big Bass Amazon Xtreme Slot

Rating: 4.3/5

• RTP: 96.07%
• Max Win: 10,000x
• Volatility: Very High
• Stakes: 10p to £5
• Release Date: 19 June 2023

The first time I saw Pragmatic Play's fisherman go off track a little in the Big Bass series is in Big Bass Amazon Xtreme. Set in the Amazon guaranteeing extreme fishing action, this very high volatility slot game benefits from Money Symbols worth up to 1,000 x bet which are subject to a random multiplier up to 50x in the base game. In the Free Spins feature, there are random extras as well as 8 levels where you'll win extra free spins and a Money symbols multiplier up to 50x. This can lead to 10,000 times bet max wins. 

9. Big Bass Hold & Spinner

Big Bass Hold & Spinner Slot

Rating: 4/5

• RTP: 96.07%
• Max Win: 10,000x
• Volatility: High
• Stakes: 10p to £5
• Release Date: 27 March 2023

The Hold and Spinner mechanic in the Big Bass Hold & Spinner slot is a cracker with 2 bonus features offering a nice variation from what has been released previously. With a 96.07% RTP rate, the volatility is very high but it does come with big win potential of 10,000 times your total bet per spin. 

8. Club Tropicana

Club Tropicana Slot

Rating: 3.6/5

• RTP: 96.08%
• Max Win: 4,000x
• Volatility: High
• Stakes: 12p to £5
• Release Date: 9 February 2023

Released in February 2023, Club Tropicana isn't the name of Wham's iconic song but a party-inspired slot where cocktails, sunshine and big wins are guaranteed (see what I did there?). With 5 reels and 12 paylines, Pragmatic Play's favourite fisherman heads to a tropical island to become a cocktail maker. Sporting Aviator-style sunglasses, a Hawaiian shirt and a lot of chest hair, it's all about the free spins where Alan Wilds collect Money symbols for extra free spins and Money symbol multipliers. This can lead to 4,000 times bet max wins. 

7. Bigger Bass Blizzard

Bigger Bass Blizzard Slot

Rating: 3.4/5

• RTP: 96.08%
• Max Win: 4,000x
• Volatility: High
• Stakes: 12p to £5
• Release Date: 28 November 2022

Staying away from a specific Christmas version in 2022, Pragmatic Play just chucked in snow and lots of it in Bigger Bass Blizzard. With fluffy white stuff, it's a snowy reskin of the Bigger Bass Bonanza game. It comes with a 96.08% RTP rate though but with 4,000 times bet max wins. 

6. Big Bass Bonanza Keeping it Reel

Big Bass Bonanza Keeping It Reel Slot

Rating: 3.7/5

• RTP: 96.07%
• Max Win: 10,000x
• Volatility: High
• Stakes: 10p to £5
• Release Date: 24 October 2022

A few new features appeared in this October 2022 release of Big Bass Bonanza Keeping it Reel. With 5 reels and 10 paylines, the volatility is high but the RTP rate is 96.07%. To compensate, there are 10,000 times bet max wins on offer. One thing I like is that it's cheerful and upbeat compred to previous Big Bass slots. 

5. Big Bass Splash

Big Bass Splash Slot

Rating: 4/5

• RTP: 96.71%
• Max Win: 5,000x
• Volatility: High
• Stakes: 10p to £5
• Release Date: 23 June 2022

Released in June 2022, Big Bass Splash has the usual fishing theme but with a Wild West influence. With 5 reels and 10 paylines, it's not hugely different from its predecessors but it does offer a 96.71% RTP rate, high volatility and 5,000 times bet max wins. Alongside Big Bass Bonanza, Big Bass Splash is the most popular game in the series with many no wagering free spins offer on this game.  

4. Christmas Big Bass Bonanza

Christmas Big Bass Bonanza Slot

Rating: 3.2/5

• RTP: 96.71%
• Max Win: 2,100x
• Volatility: Medium
• Stakes: 10p to £5
• Release Date: 2 December 2021

Merry Christmas from Big Bass slots as we get the first Christmas version of the original Big Bass Bonanza game in Christmas Big Bass Bonanza. Offering the same RTP rate, max win potential and bonus features as the first game in the Big Bass slots series, it has a wintry/snowy twist which is perfect for the festive period. 

3. Big Bass Bonanza Megaways

Big Bass Bonanza Megaways Slot

Rating: 3.5/5

• RTP: 96.7%
• Max Win: 4,000x
• Volatility: Very High
• Stakes: 20p to £5
• Release Date: 18 November 2021

Launched in November 2021, Big Bass Bonanza Megaways was the first game in the series to use Big Time Gaming's Megaways mechanic. With 6 reels and 46,656 ways to win, it is very high on the volatility front and comes with a 96.7% RTP rate. With scatters, wilds, bonus rounds, free spins, multipliers, and cascading reels, it offers 4,000 times bet max wins.

2. Bigger Bass Bonanza

Bigger Bass Bonanza Slot

Rating: 4/5

• RTP: 96.71%
• Max Win: 4,000x
• Volatility: Very High
• Stakes: 12p to £5
• Release Date: 16 September 2021

Released on 16/9/2021, Bigger Bass Bonanza by Reel Kingdom was the first slot sequel of the series and offers very high volatility (5/5), a 96.71% RTP, and a max win of 4,000 times your total bet. Play with 5 reels and 12 paylines from 12p per spin, the focus is on the Free Spins feature where Fisherman Wilds collect Money symbol values. With multipliers up to 10x as well as additional free spins, there is a random Bazooka feature which adds Money symbols to the reels. 

1. Big Bass Bonanza

Big Bass Bonanza Slot

Rating: 4.2/5

• RTP: 96.71%
• Max Win: 2,100x
• Volatility: Medium to High
• Stakes: 10p to £5
• Release Date: 3 December 2020

Released in December 2020, Big Bass Bonanza was the slot game that kicked off the Big Bass series. With a high 96.71% RTP rate, this fishing-themed classic is all about the Free Spins feature. Playable from 10p per spin, this medium to high volatility game comes with 2,100 times bet max wins. 

Conclusion

Big Bass Bonanza has made a remarkable splash in the online slot market, showcasing Pragmatic Play's prowess in crafting engaging and dynamic games. The series' journey from the original Big Bass Bonanza to its latest iterations, including seasonal specials and innovative Megaways versions, underscores a commitment to evolution and player satisfaction (and milking it for all it's worth!). These games have not only enriched Pragmatic Play's diverse portfolio but have also set a high standard for thematic creativity and gameplay innovation in the industry.

The Big Bass Bonanza series stands as a testament to the developer's ability to adapt and expand upon a beloved theme, ensuring that each new release offers a fresh take on the fishing adventure that players have come to love. With its wide range of RTPs, volatility levels, and max wins, the series caters to a broad audience.

Cast your lines into the vibrant waters of Big Bass slot games at any slot site featuring Pragmatic Play games.

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