Big Bass Bonanza slot review and bonus guide
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Big Bass Bonanza at Garrisonbet Casino - what you need to know

Pragmatic Play's fishing-themed slot with free spins and money collection mechanics. RTP 96.71%, high volatility means bigger wins come less often.

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Big Bass Bonanza

Before you play Big Bass Bonanza

Ocean theme meets high volatility. Big Bass Bonanza is a fishing-themed slot on a 5-reel, 3-row grid where wins form across 10 paylines from left to right. Released in 2020, it combines ocean visuals with high volatility gameplay where wins arrive less often but can be much larger. The core mechanic centres on collecting money values during free spins, with a Fisherman Wild that appears only in the bonus round to land and gather those money symbols across the reels.

Who should play Big Bass Bonanza. This slot suits players with a taste for higher variance games and the bankroll to ride longer dry spells between wins. Bets range from £0.10 to £5, so you can pace your stake to your session length. The gameplay rewards patience through free spins rather than frequent base-game wins, making it a fit for those chasing a substantial bonus round rather than constant smaller payouts.

How do free spins work here? Free spins define how a round of Big Bass Bonanza plays out once you land them. Trigger 3 or more scatters to start, and you'll enter a special-reel mode where the Fisherman Wild collects money symbol values and retriggering adds more free spins and escalates the money multiplier with each collection milestone. This collecting mechanic stacks wins and pushes you toward the game's largest payouts during the bonus.

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Game Specifications

Read the core numbers here

You now understand what each specification controls in your game and how it shapes your play.

Pragmatic Play

DeveloperPragmatic Play
Return to Player96.71%
VolatilityHigh
Layout5x3

£10 500

Maximum Win Multiplex2 100
Top Win in Pounds£10 500
Release Date14/12/2020
Big Bass Bonanza round

From your bet to the final payout

What happens on the reels from the moment you place your stake until the round ends.

Bet from £0.10 to £5
You set your bet before each spin using the controls beneath the reels. The range runs from £0.10 to £5 per spin, letting you match your session budget to your play style.
Wins form on paylines
Matching symbols across the 10 paylines deliver payouts. Three or more of the same symbol—as few as two for the Lure—landing left to right from the first reel onwards will win you a prize according to the paytable.
Standard reels spin
The reels spin and stop on the 5x3 grid. During base game play, standard pay symbols and payline wins appear—the Fisherman Wild does not show here—until you either cash out or trigger the bonus.
Three scatters or more
Three or more Scatter symbols anywhere on the grid launch Free Spins: three scatters give you 10 spins, four give 15, and five give 20. The free spins round begins with special reels and collecting mechanics active.
Responsible gambling controls
Before you start playing, set limits on your account—deposit limits, loss limits or session reminders—through Garrisonbet Casino's responsible gambling tools to help control your play.
What the reels show

The fishing reels and bonus screens

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Unlock bigger payouts with retriggering multipliers

From trigger to multiplier escalation. Three or more scatters trigger free spins: 3 scatters awards 10 free spins, 4 scatters awards 15, and 5 scatters awards 20. During free spins, the Fisherman Wild appears on every reel and collects the value of any money symbol it lands next to. Every 4th Wild collected adds 10 more free spins and escalates the money multiplier. Up to 3 retriggerings are possible, with multipliers rising to x2, x3 and x10.

How you build wins before the bonus. The base game uses a 5x3 grid with 10 paylines running left to right from the leftmost reel. Only standard pay symbols land on these reels. The Fisherman Wild does not appear in the base game, so wins form from the regular symbol combinations alone until a scatter trigger arrives.

Explore the series

Which other Big Bass slot suits your play?

The games differ in RTP from 96.50% to 96.52%, and maximum wins range from 5000x stake to 25000x stake.

Big Bass Blast

RTP96.50%
Maximum winx5 000
Year2026

Big Bass Football Bonanza

RTP96.50%
Maximum winx5 000
Year2026

Big Bass Trophy Catch

RTP96.50%
Maximum winx5 000
Year2026
Practice without spending

Big Bass Bonanza: play free or for money

Test the slot free at Garrisonbet, then move to real money when ready.

Big Bass Bonanza demo mode
Spin the reels with no money at stake and no winnings to collect. The demo shows you exactly how the slot plays, how the free spins trigger and what the bonus round looks like.
Play the demo
Real money stakes here
Wager real money from £0.10 to £5 per spin and keep any wins you land. Every spin carries the same 96.71% RTP and the same chance of triggering free spins as the demo does.
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What to play next

What else plays like this at Garrisonbet Casino?

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The figures explained

What Big Bass Bonanza returns per 100 staked

RTP is a long-run average calculated over millions of spins across all players. The figure shown here applies only to the standard game. In any single session, results vary widely.

RTP 96.71% · Standard game

Your return per 100£96.71
What the house keeps£3.29
Big Bass Bonanza: UK rules

Your betting range and maximum win on these reels

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18+Know exactly what bets are allowed and what you can win at the highest stake
£5 → £10 500

Highest stake and top win

The maximum bet you can place on Big Bass Bonanza is £5, and at that stake your maximum possible win is £10 500.

No automatic spins allowed

Autoplay is not available on Big Bass Bonanza in the UK, so every spin requires your active choice to proceed.

Random results versus fixed numbers

Your bonus timing stays unknown. No player can predict when the bonus round arrives. Scatters may take dozens of spins to land, or they may appear in your first few. Each session is independent of the last.

Why one spin tells you nothing. The RTP figure shows what the game returns over hundreds of thousands of spins. Your session, your spin, your result is random. A high RTP does not mean you win today or next week.

The maximum is a ceiling. Big Bass Bonanza can pay up to 2100 times your stake. That ceiling exists, but it lands so rarely that most sessions never approach it. Plan your stake and your session limit without counting on reaching the maximum.

Big Bass Bonanza essentials

How does Big Bass Bonanza work?

You'll know how to trigger free spins, what makes this slot distinct, which bets you can place, and what volatility means for your session.

Why do free spins matter in Big Bass Bonanza?+
Free spins are triggered when three or more scatters land. You'll get 10 free spins for three scatters, 15 for four, or 20 for five. During free spins, the Fisherman Wild collects money symbol values on the reels, and landing a fourth wild adds 10 more free spins while boosting the multiplier.
Do I need to play Big Bass Bonanza instead of other Big Bass slots?+
Big Bass Bonanza is separate from other Big Bass games in the series. It has its own bonus round with the money collect feature and a maximum win of 2100x stake. Other Big Bass titles have different mechanics and maximum wins, so the choice depends on which gameplay you prefer.
How much can you bet on Big Bass Bonanza?+
You can stake between £0.10 and £5 per spin. Most players start with smaller bets like £0.40 or £0.50. At the example top bet of £0.50, your maximum possible win is £1,050 in a single session.
Do I need high volatility for Big Bass Bonanza?+
Big Bass Bonanza is a high volatility slot, meaning wins come less often but can be much bigger when they land. This suits players who can handle longer spins without payouts in exchange for the chance of substantial returns during free spins.

A slot is entertainment, not income

Budget before you play. Decide what you can afford to lose before you play. Set a budget in pounds and stick to it, treating any money wagered as the cost of your session, not money to win back.

Big Bass Bonanza teaches nothing about stopping. Big Bass Bonanza can deliver strong wins, but they do not mean you should play longer. Choose when you will stop before the first spin, and stop when you reach that point, whether you are ahead or behind.

Can limits protect your wallet? Your Garrisonbet Casino account gives you deposit limits and loss limits. Use them to cap what you spend in a day, week or month, and the game cannot take more than you decide.

Take a break when you need one. If the game stops being fun or you feel you are playing to chase losses, pause your account or self-exclude. GamCare, BeGambleAware and GAMSTOP all help.

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