Pragmatic Play's fishing-themed slot across five reels and four rows, where free spins trigger cash-collecting wilds and retriggers. Standard RTP 96.71%, high volatility.

5 reels, 12 paylines, wild in free spins. Bigger Bass Bonanza is a fishing-themed slot by Pragmatic Play set on a 5-reel, 4-row grid with 12 fixed paylines. The game sits on a pontoon amid water and tackles, with symbols including fishing boats, rods, lures and tackle boxes alongside card values. Released in 2021, it combines regular payline wins with a free spins bonus round where a fisherman wild appears. High volatility means wins arrive less often but can be significantly larger.
Patience needed between bonus rounds. This slot suits you if you're comfortable with longer spells between wins and can stake within its range: bets run from £0.12 to £5. The free spins mode is where most big wins happen, so you need patience for base game play. Players who prefer frequent small wins or tight budgets with minimal bet range may find the high volatility and bonus-heavy design less fitting.
Multipliers unlock through retriggering. Free spins drive the game. Land 3, 4 or 5 scatters to trigger 10, 15 or 20 spins. During free spins, the wild fisherman collects cash values from all money symbols on screen when it lands, and every fourth collected wild adds 10 more spins plus a multiplier (up to x10). The round caps at 4000 times your stake, which at the top example bet of £1 reaches £4,000.
Read moreThese are the numbers that shape how Bigger Bass Bonanza plays and what you can win.
You'll know what to choose before you spin and what to watch for after.
Catch multipliers every fourth wild. Three, four or five scatters award 10, 15 or 20 free spins. The fisherman wild appears only here, collects cash values from money symbols when it lands, and every fourth wild retriggers 10 more spins with a multiplier up to 10x. Your bonus round total is capped at 4000 times your stake.
How the standard round works. The base game runs a 5 by 4 grid with 12 paylines paying left to right from the leftmost reel. Money-valued fish symbols and regular symbols pay according to the paytable. Most symbols need three matches to win; the fishing boat pays from two symbols.
On this market, the highest bet you can place on Bigger Bass Bonanza is £5, at which your maximum possible win reaches £20,000.
Bigger Bass Bonanza does not offer autoplay on UK casino sites, so you must trigger each spin manually during your session.
The five games share the same high volatility but differ in RTP between 96.50% and 96.52%, and in maximum win from 5000x to 25000x bet.
RTP is an average across a vast number of spins over time. The 96.71% figure applies to the standard game, so for every 100 staked, you get back 96.71 on average.
See how the slot works and what free spins feel like before you stake any money.
Bigger Bass Bonanza bonus timing is random. The free spins round arrives by chance. No pattern or bet size controls when it triggers, and you cannot count on it within any set number of spins.
Does a loss mean a win is coming. Each session outcome depends on random chance, not on what happened before. Your next spin is independent, and the RTP is a long-term average, never a guarantee for one session.
Treat the maximum win as a rare ceiling. The £4,000 maximum win at £1 bet is a limit reached extremely rarely. You play knowing most rounds will fall far short of that ceiling.
Know what to expect before your first spin at this fishing-themed slot
Spend what you can lose. Decide how much you can afford to lose before your first spin. Set a budget that covers your session and stick to it, treating any money you stake as gone.
Bigger Bass Bonanza stops when you say so. Plan your exit point in advance, whether you've won or lost. Once you hit that point, close the game and walk away rather than chasing more spins.
Set limits on your account. Use your account's deposit limits and loss limits to enforce your spending plan automatically. These tools let you set a ceiling you cannot exceed during a session.
When gaming stops being entertaining. Take regular breaks or use self-exclusion if the game stops feeling like fun or if you're playing to recover losses. GamCare and BeGambleAware offer free support whenever you need it.
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