
Big Bass Bonanza Slot Demo
Developed by Pragmatic Play and released in 2020, Big Bass Bonanza is a fishing-themed slot game, with medium volatility and a 96.71% RTP, that transports you to an underwater world filled with fish, floats and rods. Check out its gameplay with our free demo and enjoy free spins and special features!
Our Verdict on Big Bass Bonanza Slot – 7.6/10
After our test, we would first recommend this slot to casual players, due to its medium volatility and 96.71% RTP, that will allow you to place low-risk bets. That said, high-rollers can also enjoy this game with exciting features like the Fisherman Wild that can significantly improve your winnings.
Although it stands out by its variety of winning combinations, 5 reels, and 10 paylines, the game still lacks in a few areas. With a few innovative features, more bonuses, and a few animations to create a lively gameplay, our rating could have gone way up!
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Feature Score
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RTP
96.71%
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Volatility
Medium
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Progressive jackpot
–
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Min. BET
£0.1
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Max. BET
£250

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Top 5 Reasons to Play Big Bass Bonanza Slot Demo
After testing this slot, we’ve identified some of the biggest reasons why you should play it.
- Medium volatility: Big Bass Bonanza’s medium volatility offers a balanced risk-reward system. You usually won’t have to wait too long for payouts while enjoying bonus rounds with multipliers and potential high rewards.
- Big Bass Bonanza’s RTP: 96.71% RTP is high and allows you to bet with low-risk. This makes this slot casual-friendly while still pleasing high-risk players.
- Range of bets: Another feature that will please both casual players and high-rollers is the possibility to bet each round from £0.10 to £250.
- Fisherman Wild: This feature allows you to boost your wins during classic spins and even more during free spins, adding to the excitement of the game.
- Increasing multipliers: The possibility of getting 2x, 3x and 10x multipliers during free spins by collecting several Fisherman Wild during free spins can significantly boost your winnings.
How to Play Big Bass Bonanza Slot
In order to enjoy the game to the fullest, you’ll need to understand its mechanics and recognize the symbols that will help you boost your winnings.
Playing Big Bass Bonanza: Step-by-Step Guide
Big Bass Bonanza is a 5×3 reel slot game with 10 different paylines. Its gameplay is quite simple and easy to comprehend. Here’s how a classic game works:
- Before your first spin, select the amount of coins you want to bet on each payline and the value of each coin. This will give you the total bet for your next spin. Please keep in mind that the minimum total bet per spin is £0.10, while the maximum is £250.
- Spin the wheel and see if you’ve won something.
- You can now adjust your bets, benefit from free spins if you were lucky enough to win some, and spin the wheel again.
Big Bass Bonanza Symbols and Features
In the game you’ll find many symbols. Most symbols work the same way: you’ll need to get 3, 4, or 5 of the same one in order to have a winning combination. But each symbol has a different value, so it’s important to identify which ones are the most valuable.
The first ones are card symbols. There are 5 of those: 10, J, Q, K and A, and are considered low-value symbols. If you get 3, 4, or 5 in a combination, you’ll get up to 10x your bet. Other symbols will boost your winnings even more. 3-5 fish in a combination will get you up to 20x your bet, while 3-5 dragonflies or tackle boxes can multiply it by 50x.
The two highest value symbols are fishing rods and floats, which can make you win respectively up to 100x and 200x your bet.
Aside from those classic symbols, you’ll be able to find Fish Scatter on your grid. They work the same as the others, but instead of money, they will give you 10, 15 or 20 free spins.
Finally, you might find a last symbol called Fisherman Wild. This one will replace any symbol in order to create a winning combination, but that’s not it. During free spins, the Fisherman Wild will collect all the values of money symbols that appear on the reels during those free spins. If you collect 4 Fishermen, you will get 10 more free spins and unlock a multiplier that will increase every 4 Wilds collected, up to 10x!

Big Bass Bonanza Slot Visuals and Theme
The game shares its visual identity with other games in the Big Bass series, such as Big Bass Splash. In Big Bass Bonanza, you are playing on 5 underwater reels, each one separated by a line of bubbles. In the background you’ll find algae and a deep blue color, and with each of your spins you’ll discover fishing rods, fish, and tackle boxes. While the visuals are polished and aligned with the theme, the game lacks some animation, both in the background and on the reels. Nothing that would get you out of the experience, but it’s always nice when the world enveloping a game seems more alive and immersive.
Regarding the soundtrack, Big Bass Bonanza comes with jolly and catchy music that will probably get stuck in your head for a few minutes after you exit the slot game.
Big Bass Bonanza RTP and Volatility Explained
The RTP (Return to Player) is the percentage of funds you will get back on average when playing a game. Big Bass Bonanza has a 96.71% RTP, which is considered quite high. It means that on average you will get £96.71 back for every £100 you bet. Please note that this percentage is an average, and therefore doesn’t mean you will always get this amount back.
The volatility describes the frequency and nature of the wins you can expect from a slot game. A medium volatility means medium wins at an average frequency.
The high RTP, combined with medium volatility, ensures you a comfortable experience, during which you shouldn’t be taking too high of a risk but shouldn’t expect to get as many big wins as in a high volatility slot.
Play Big Bass Bonanza Mobile on iOS and Android
With its simple gameplay and visuals, Big Bass Bonanza is perfect for mobile, whether you are on iOS or Android. You won’t even notice the difference between this version and the desktop one: fast loading time, smooth controls, responsive designs, and visuals that don’t suffer from the mobile transition. You can play Big Bass Bonanza on mobile without having to download a new app, directly going to your online casino on your browser.
Where to Play Big Bass Bonanza Slot in the UK
You will be able to play Big Bass Bonanza in many online casinos in the UK. Below you will find a list of casinos where this slot is available and bonuses that you will be able to claim.
See the key factors behind the iGN Rating for PlayOJO Casino:
- Safety Index = Excellent – PlayOJO ensures player safety with strong SSL encryption, a dedicated “Safer Gambling” section, and tools like Safe Mate, which tracks gambling habits and offers personalized tips. Additional features include child protection tools and playtime limit options, reinforcing its commitment to responsible gaming.
- Advantages: No wagering on bonuses, an extensive selection of over 5,000 games, daily Kickers promotions, and a comprehensive safer gambling section.
- Disadvantages: Limited table and live game options, and no deposit-matching welcome bonus.
Minimum deposit: £10
General number of games: 5000
Payment speed: up to 2 days
Free spins: Get 50 Free Spins (no wagering)
Get 50 Free Spins (no wagering)
See the key factors behind the iGN Rating for Leo Vegas Casino:
- Safety Index = Excellent – LeoVegas is fully licensed by the UKGC and MGA, ensuring strong security through SSL encryption, a thorough KYC process, and regular independent audits. With responsible gambling tools and 24/7 support, it stands out as one of the safest online casinos for UK players.
- Advantages: Over 4,000 high-quality games, a multi-award-winning brand since 2012, 24/7 live chat support, and access to the exclusive £20M+ LeoJackpot.
- Disadvantages: Limited payment options compared to competitors, no loyalty programme for UK players, and no phone support available.
Minimum deposit: £10
General number of games: 4000
Payment speed: Instant to 5 days
Free spins: 50 Free Spins
Get 50 Free Spins on Big Bass Splash by playing £10
Final Thoughts on Big Bass Bonanza Slot
Whether you’re looking for a fun game with low risk or some thrills and potential big payouts, this slot is perfect for you! Flexible betting options to fit everyone, high RTP and exciting features like the Fisherman Wild and the free spins will keep you entertained and add suspense to your gameplay.
The Big Bass Bonanza demo version is available at the top of the review, so you can try the game risk-free before playing with real money.