Big Bass Bonanza is a fishing slot from Pragmatic Play, made with the studio Reel Kingdom, and the first game in what is now a long series of sequels. It plays on five reels, three rows and 10 lines. The part everyone plays it for is the free spins: fish symbols land carrying cash values of up to 2,000 times your bet, and every fisherman wild that lands collects all of them. Pragmatic publishes the RTP at 96.71%.

A large bass leaping from a misty lake at sunrise beside a wooden jetty with a fishing rod, landing net and tackle box
Every game in the series is built around the same catch: fish with cash values and a fisherman wild to collect them.

Big Bass Bonanza at a Glance

DeveloperPragmatic Play, with Reel Kingdom
Layout5 reels, 3 rows, 10 lines
RTP96.71%
Free spins10, 15 or 20 for 3, 4 or 5 scatters
Fish valuesUp to 2,000x your bet
Retrigger multipliers2x, 3x, then 10x
Stakes in Great BritainUp to £5 per spin (£2 for 18 to 24 year olds)

How the Big Bass Bonanza Free Spins Work

In the base game you are lining up symbols across the 10 lines, and the aim is to land scatters. Three, four or five scatters trigger 10, 15 or 20 free spins.

In the free spins, two symbols do all the work. Fish land with a cash value on them, and the fisherman is the wild: whenever he lands, he collects the value of every fish in view. A fisherman landing with a screen full of fish is where the big wins come from.

Retriggers and the multiplier

Every fisherman you land in the free spins is counted. Every fourth one retriggers the round with 10 more spins and a bigger multiplier on everything he collects: 2x after the first retrigger, 3x after the second and 10x after the third, which is the last.

Chart of the Big Bass Bonanza free spins retrigger ladder: 4, 8 and 12 wilds collected add 10 spins each and raise the multiplier to 2x, 3x and 10x
Twelve fishermen collected takes you to the 10x level, where each catch is worth ten times its face value.

The Big Bass Series

Pragmatic has released a long line of follow-ups. They share the fish, the fisherman wild and the 2x, 3x, 10x ladder, and change the extras around them. These are the best known, with the RTP Pragmatic publishes for each:

GameWhat is differentRTP
Big Bass BonanzaThe original; fish up to 2,000x96.71%
Bigger Bass BonanzaA bigger 4×5 grid; fish up to 4,000x96.71%
Big Bass Bonanza MegawaysMegaways reels; 3 to 6 scatters for 10 to 25 spins; fish up to 4,000x96.70%
Big Bass SplashUp to five random modifiers before the spins; fish up to 5,000x96.71%
Big Bass Bonanza 1000Fish up to 1,000x; a third scatter can be reeled in; wins up to 20,000x96.51%
Big Bass Splash 1000Splash modifiers; fish up to 1,000x96.52%
Big Bass Floats My BoatGrowing multipliers on the fish; an octopus turns symbols into fish96.07%
Big Bass Secrets of the Golden LakeTwo free spins rounds, picked from 12 cards96.07%

Big Bass Splash

The sequel most people search for in the UK. The free spins trigger the same way, 10, 15 or 20 spins for 3, 4 or 5 scatters, but before they start the game can add up to five modifiers, such as extra fish, extra wilds or extra spins. The fish go up to 5,000x, and the 2x, 3x, 10x retrigger ladder is unchanged.

Big Bass Bonanza Megaways

The original on Megaways reels. Three to six scatters award 10, 15, 20 or 25 free spins, the fisherman collects the fish, and every fourth fisherman adds 10 spins and the next multiplier.

The 1000 editions

Big Bass Bonanza 1000 and Big Bass Splash 1000 are named after their fish values, which run up to 1,000x. In Big Bass Bonanza 1000, when two scatters land a third can be reeled in to start the feature, and Pragmatic gives the top win as 20,000x the bet.

Big Bass Bonanza Demo and Free Play

Pragmatic Play’s own Big Bass Bonanza page runs a free demo of the game, and so do its pages for the sequels. A demo plays exactly like the real game, which makes it the easiest way to see how often the free spins come round and how far up the ladder a round tends to get before you stake money. In Great Britain, licensed casinos have to verify your age before you can play, even in demo mode.

Stake Limits in Great Britain

In Great Britain online slot stakes are capped by law: £5 per spin for players aged 25 and over and £2 per spin for 18 to 24 year olds. A British casino limits the bet range of every Big Bass game accordingly. Elsewhere, the limits depend on the country and the casino.

Where to Play Big Bass Bonanza Online

These operators reviewed here accept players from the UK and list Pragmatic Play among their game studios. Availability depends on where you live, so search the lobby for “Big Bass” to see which editions each one carries.

OperatorWelcome offerOur rating
Odin Fortune700% up to €4,000 + 700 free spins4.2Open Odin Fortune
Lussurio550% up to £2,960 + 400 free spins4.2Open Lussurio
iWild CasinoUp to 550% + 400 free spins4.8Open iWild Casino
1Red Casino225% up to €11,500 + 225 free spins over 3 deposits4.0Open 1Red Casino

Similar Games

For another fish-collecting slot, see Fishin’ Frenzy, where a fisherman reels in the fish in the free games too; for a live fishing game show, Ice Fishing. Our guides to online slots and scatter symbols explain how slot features work in general.

Playing It Sensibly

Chasing the 10x level can keep you spinning long after you meant to stop. Set a budget before you start, choose a stake that fits it, and stop when it is gone. Free, confidential support is available at BeGambleAware.org. 18+ only.

Also worth a look: Hacksaw Gaming, the studio behind Le Bandit, where a Rainbow turns every winning square into a coin.

Big Bass Bonanza: frequently asked questions

Who makes Big Bass Bonanza?

Pragmatic Play, which developed it with the studio Reel Kingdom. It has since been followed by a long series, including Big Bass Splash, Bigger Bass Bonanza and a Megaways version.

What is the RTP of Big Bass Bonanza?

Pragmatic Play publishes 96.71%. Big Bass Splash and Bigger Bass Bonanza are also listed at 96.71%, and Big Bass Bonanza Megaways at 96.70%.

How do you trigger free spins in Big Bass Bonanza?

Land three, four or five scatter symbols for 10, 15 or 20 free spins. During the round, the fisherman wild collects the cash value of every fish in view.

How does the multiplier work in Big Bass Bonanza?

Every fourth fisherman collected in the free spins adds 10 more spins and raises the multiplier: 2x after the first retrigger, 3x after the second and 10x after the third and last.

What is the difference between Big Bass Bonanza and Big Bass Splash?

Big Bass Splash can add up to five random modifiers, such as extra fish, wilds or spins, before the free spins begin, and its fish go up to 5,000x rather than 2,000x.

Can I play Big Bass Bonanza for free?

Yes. Pragmatic Play’s game page runs a free demo, and many online casinos offer a demo mode. In Great Britain the casino must verify your age first, even for the demo.

How many paylines does Big Bass Bonanza have?

Ten lines on five reels and three rows. Big Bass Bonanza Megaways uses the Megaways reel system instead.

What is the maximum bet on Big Bass Bonanza in the UK?

In Great Britain online slot stakes are capped at £5 per spin for players 25 and over and £2 for 18 to 24 year olds.

Fadi Hayek
Author & Casino Expert

After going through several successful experiences with several industry pioneers, Fadi Hayek has managed to excel in the world of content for online gaming by providing unique content for several projects that allowed him to obtain the necessary experience to launch his career. Last but not least, Fadi also holds several certificates, including but not limited to content marketing and iGaming.

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