Gwin77 Casino

Pragmatic Play · 2020

Big Bass Bonanza

Big Bass Bonanza is a high volatility fishing slot from Pragmatic Play on a 5x3 grid. This page walks you through its figures, modes and rules.

  • RTP 96.71%
  • Volatility High
  • Max win multiple x2,100
  • Grid size 5x3
Big Bass Bonanza

Big Bass Bonanza facts

From headline figure to what you actually get

Not sure what the numbers mean? Each figure below says what it does at your bet.

From headline figure to what you actually get
Game detailShown as
ProviderPragmatic Play
RTP96.71%
VolatilityHigh
Grid size5x3
Max win multiplex2,100
Max win in moneyA$525,000
Release date14/12/2020

Big Bass Bonanza, a reel that collects money

Pick a bet, press spin, and watch a fishing and ocean theme on a 5x3 grid with 10 paylines. Wins are read from the leftmost reel to the right, and two matching symbols on a payline are enough to pay. Symbols include the Lure, Rod and Reel, Dragonfly, Tackle Box and Fish, plus the card values 10, J, Q, K and A. Bets run from A$0.10 to A$250 on the same reels.

Choose to chase the bonus, because the Fisherman Wild appears once Free Spins start. Three or more Scatter symbols trigger the round, and each Wild that lands collects Money symbol values. Every fourth Wild collected adds 10 free spins and lifts the Money multiplier, with up to three retriggers. The base game uses standard symbols only, so the Wild stays out of normal spins.

Visual walkthrough

What does a win look like on the reels?

Many players wonder what the reels look like before they bet real money.

  • Win screen showing a line win on the 5x3 grid
    Win screen showing a line win on the 5x3 grid
  • Base game 5x3 grid with standard pay symbols only
    Base game 5x3 grid with standard pay symbols only
  • Free Spins round with Fisherman Wild on every reel
    Free Spins round with Fisherman Wild on every reel

Before the First Spin, Know Your Numbers

Choosing a stake means knowing the RTP: the share of money returned over time per A$100 staked. A single session can land above or below it. The version run here is in the game rules.

Payout settingRTPFactory set
Edition 196.71%Yes

Know the rules

Walk through these five steps from bet to bonus

After reading, you will have followed one full round from your bet to your session limit.

  1. Big Bass Bonanza stake range

    Choose a bet from A$0.10 up to A$250 when you sit down. The paytable on this page uses A$2, so compare payouts at that stake.

  2. Check the 10 paylines

    Follow each of the 10 paylines from the leftmost reel to the right. Two matching symbols in a row pay, and only standard pay symbols count here.

  3. Scatter symbols and standard pay symbols

    Keep an eye on the Scatter, because three or more of them start the free spins. The base game uses standard pay symbols only, with no Fisherman Wild.

  4. Fisherman Wild on every reel

    Land three or more Scatter symbols to start the free spins, and more Scatter symbols give more spins. Fisherman Wild then appears on every reel and collects MONEY symbol values.

  5. Set a stop before spinning

    Decide before the first spin how much you will stake and when you will stop. Volatility is high, so results can swing sharply.

Before the bonus triggers

Extra spins that build with each Wild

At Gwin77 Casino we list every bonus rule so you know the terms before you play.

Land three Scatter symbols

Three or more Scatter start the Free Spins. 3 Scatter gives 10 spins, 4 gives 15 and 5 gives 20. Fisherman Wild lands on every reel and collects Money values. Each 4th Wild adds 10 spins and raises the Money multiplier to x2, x3 and x10. Max 3 retriggers.

Base gameExtra spins

Big Bass Bonanza 10 paylines

Choose a bet and spin the 5x3 grid. Wins run across 10 paylines, left to right, starting from the leftmost reel. Only the standard pay symbols appear here, so Fisherman Wild stays out of the base game.

Game startStandard wins

Practice round

Should I try it first, before I sign in?

Afraid a practice round will drain your balance? The demo needs no money at all.

Pick the demo to watch the reels first, since it needs no money and pays nothing. Real play needs a Gwin77 Casino account and you must be 18+.

Play now

Bonus timing and single round outcome

Before you pick a bet, know that nobody can say how often the bonus round arrives in Big Bass Bonanza. The result of one session is random, whatever the RTP. The RTP describes the long run across many players, not the next hour at your table.

Before you rely on any return figure, check which RTP version Gwin77 Casino runs for this game. That version is shown only in the game rules, so read them rather than trusting a number from memory. Once you have it, you know exactly which return figure applies to your play.

Before you plan around the largest prize, keep in mind that the maximum win is a ceiling. Few rounds reach it, and nobody can say when one will. The ceiling is the most the game can pay for a bet, not a sum you can expect.

Beyond Big Bass Bonanza

Bigger Bass Splash and Gemhalla Xtreme

Five other reviewed slots, so you can settle which game fits your budget before you play.

When the session stops feeling fun

Players must be 18+. Support is available from the National Gambling Helpline on 1800 858 858, and BetStop is the national self-exclusion register you can join.

Bill money stays separate

Decide how much you can lose on Big Bass Bonanza before you open the game, and keep that amount separate from money you need for bills.

Stopping point before the spin

Choose your stopping point before the first spin, and keep to it even after a big win, since the next result is never known in advance.

When losses start to climb

Use the deposit and loss limits in your account before you play, and lower them if your spending starts to creep up.

Time for a break?

If Big Bass Bonanza stops feeling fun, step away for a while, or join the BetStop register to self-exclude.

National Gambling HelplineBetStop

Game facts

What does a 96.71 RTP mean for my money?

Useful before your first bet, once you want clear answers on free spins and RTP.

How do free spins start in Big Bass Bonanza?

Land three or more Scatter symbols on the grid to start free spins. Three Scatters give 10 free spins, four give 15 and five give 20. During free spins, Fisherman Wild appears on all reels and collects the Money symbol values it lands on.

How volatile is Big Bass Bonanza slot?

Big Bass Bonanza has high volatility. Wins tend to be less frequent but can be larger, so a session can go a long time without a big return. The maximum win is 2100x the bet, or A$21,000 at a bet of A$10.

What is the RTP of Big Bass Bonanza?

The single RTP version of this slot is 96.71%. RTP is a long-run average over very many rounds, so it says nothing about one session. Returns for one session can differ widely from that average.

How is Big Bass Bonanza different from Big Bass Splash 1000?

Five other versions share this series. Of them, this one has the highest RTP at 96.71%, while its maximum win of 2100x sits below the 5000x of four others and the 25000x of Big Bass Splash 1000. Pick the balance of RTP and top win that suits you.

Tessa Hollis

Senior editor with a background in online gaming compliance

I check every licence and company detail on this site against the regulator's record, and I test each page on a phone before it goes live.

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