Everything worth having on this game is behind the third retrigger. The multiplier steps 2×, then 3×, then 10×, and only reaches the top of that ladder on the third retrigger — which is where the 2,100× ceiling lives. Offshore you can play it above the UK stake limit and, unlike the original, buy straight into the feature.
| Studio | Released | RTP (advertised) | Volatility | Layout | Max win |
|---|---|---|---|---|---|
| Pragmatic Play | 2020 | 96.71% | High | 5×3, 10 paylines | 2,100× |
What Big Bass Bonanza actually is
Reel Kingdom's fisherman collects money symbols and each retrigger adds ten more spins. The multiplier steps 2×, 3×, then 10× by the third retrigger.
How the UK version differs
Pragmatic publishes 96.71%, 95.67% and 94.67% builds of this game. Always open the paytable — the difference over a session is real money.
Pragmatic publishes this title in at least three configurations — 96.71%, 95.67% and 94.67% — and the operator loads whichever it chooses. Two points of spread on a game with a long, thin tail is the difference between a session that drifts and one that drains. These band figures are reported by operators and slot databases and have not yet been confirmed against a studio document, so treat them as the shape of the spread rather than exact settings. Check it in the game rather than on any review page, this one included: how to read the paytable.
The biggest family in slots
Reel Kingdom has extended this title further than any other modern slot brand, and the lobby search is genuinely confusing as a result. The games share the fisherman, the collect mechanic and the art, and diverge on the two things that decide a session: where the multiplier can appear, and how far the ceiling reaches.
| Version | Layout / engine | Max win | What actually changes |
|---|---|---|---|
| Big Bass Bonanza | 5×3, 10 paylines | 2,100× | The original, and the figures on this page. Multiplier only inside free spins, 2× / 3× / 10× across three retriggers. |
| Bigger Bass Bonanza | 5×4, 12 paylines | Varies | Taller grid and a different scatter count, so features arrive on a different rhythm. Not a reskin. |
| Big Bass Splash | 5×3, 10 paylines | 5,000× | The multiplier fisherman can land in the base game. Quieter ordinary play buys the higher ceiling. |
| Big Bass Bonanza Megaways | 6 reels, variable heights | Varies | Ways-based rather than payline-based. See Megaways slots not on GamStop for how the ways count behaves. |
| Hold & Spinner | 5×3 with hold-and-win | Varies | Replaces the free spins round entirely with a hold-and-win grid. The furthest structural departure in the family. |
| Floats My Boat, Keeping It Reel, Day at the Races | 5×3 variants | Varies | Structural rewrites that keep the branding. Each has its own feature rules. |
| Halloween, Christmas Bash, Xmas Xtreme | 5×3 variants | Varies | Seasonal builds that look like reskins and are separately certified games. |
The figures at the top of this page describe the original 2020 build and nothing else. Assume nothing carries across, even between two titles sitting next to each other in the same lobby from the same studio.
“Varies” means we have not confirmed it. Every title in these tables is separately certified, and studios ship most of them in more than one return configuration. We publish a figure only where this site can stand behind it, and the game's own information screen is the only place the loaded build appears — how to read the paytable.
Everything is in the third retrigger
The feature starts with ten free spins. Money symbols land carrying cash values; the fisherman collects every value on screen when he appears. So far it is the same idea as its rivals.
The part that matters is the retrigger ladder. Collecting four fishermen retriggers ten more spins and steps the multiplier up. It runs 2×, then 3×, then 10× — and that 10× only arrives after you have collected twelve fishermen across three retriggers.
That single fact explains the whole distribution. The 2,100× ceiling is not reachable in a first round; it needs the ladder climbed and high money values on screen at the top of it. Almost every ordinary feature you will ever see resolves at 1× or 2×, pays a modest amount and ends. The long thin tail on this game is not built from lucky spins — it is built from features that refused to stop.
What that means at the table. A feature that ends without retriggering is not an unlucky feature, it is the normal one. Judging the game by whether a round reached 10× is judging it by its tail, which is where almost none of your sessions will be.
A lower ceiling is not a worse game
Big Bass Bonanza tops out at 2,100× where its own sequel reaches 5,000×, and the number gets read as a downgrade. It is not, and understanding why is worth more than any other single idea on this page.
A slot's return is a fixed percentage. Raising the ceiling does not add money to the game — it moves money from the middle of the distribution into the tail. A 5,000× game funds its bigger maximum by paying less often and less generously in the ordinary rounds that make up almost all of your play.
So the original is the better game for a smaller bankroll and the sequel is the better game for chasing a number, at the same expected cost per spin. Neither is value; both are the same value delivered in a different shape. That choice — shape, not return — is the only real decision the family offers you.
The bonus buy, and what it actually buys
Offshore sites sell entry to the free spins round on this title. UK-licensed sites cannot, and have not been able to since 2021.
The price is set so the buy is not a bargain. A buy priced at 100× your stake has to return more than 100× on average to beat spinning into the feature normally, and studios do not build them that way — the edge is preserved and often slightly widened. What you are purchasing is time, not value: you skip the base game and go straight to the part of the machine that has the variance in it. Our bonus buy guide sets out the numbers.
On this game specifically there is a further wrinkle. Buying in gives you a first round at 1× — you are not buying the multiplier ladder, only the entry to it. Everything described above still has to happen from the bottom.
What The Reduced Build Of Big Bass Bonanza Costs You
Big Bass Bonanza is advertised at 96.71%. If the operator has loaded a lower configuration instead, this is the difference in pounds over a realistic run of play — change the inputs to match yours.
Configuration bands shown here are reported by operators and game databases; we have not yet read them off a studio document, so treat them as orientation rather than fact.
Worked example. Big Bass Bonanza at £2 a spin, 600 spins an hour for 10 hours is 6,000 spins and £12,000 staked.
| Configuration | Expected loss |
|---|---|
| 96.71% | −£395 |
| 96.50% | −£420 |
The lower build costs £25 more over the same play.
Open the full RTP cost calculator to compare any two configurations.
What A Session On Big Bass Bonanza Actually Looks Like
Almost every large result on Big Bass Bonanza comes from a retriggered free spins round, so the distribution below has a long thin tail and a very ordinary middle.
RTP describes the long run; it says nothing about an evening, which is what you are actually buying. Ten thousand sessions are simulated below at the advertised 96.71% — the spread is the answer, not the average.
Worked example. £200 played at £2 a spin for 1,000 spins is £2,000 of turnover — more than the bankroll, because winnings are staked again.
| Starting bankroll | £200 |
| Turnover if the money lasts | £2,000 |
| Expected cost of that turnover | −£66 |
Enable JavaScript to run ten thousand sessions and see the spread of outcomes rather than this single average.
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We rank by measured payout speed, not commission. Every operator above has been deposited into and withdrawn from with our own money, and the time recorded. See the method and the full test log.
Big Bass Bonanza — FAQ
How does the multiplier climb?
Which RTP build is the site running?
How is it different from Big Bass Splash?
Is the bonus buy worth taking?
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