Big Bass Bonanza slot by Pragmatic Play — game artwork
Pragmatic Play · The Big Bass series — this is the 2020 original, and our catalogue now holds 45 games descended from it

Big Bass Bonanza

Pragmatic Play publishes 96.71% for Big Bass Bonanza. SlotCatalog records 95.67% and flags the title as having configurable RTP ranges. That is a full percentage point, the operator chooses which build runs, and nothing on screen tells you which one you have.

Everything else is well documented for once. 2,100× the total bet, agreed three ways. 10, 15 or 20 free spins from 3, 4 or 5 scatters, wilds collecting every money symbol on screen, and a retrigger ladder of 2×, 3×, then 10× — all straight from the studio.

8.4/ 10
RTP 96.71%Volatility Medium to medium-high (no official rating)Paylines 10 fixedTop pay 2,100× total bet

Play Big Bass Bonanza Free

Free play · no signup · 18+

Use the demo for the feature, not the maths. Pragmatic ships this game in more than one RTP configuration, so what a demo cannot tell you is which one your casino runs. What it can show you is how rarely three scatters actually land, and what a free-spins round looks like when the wilds do not turn up — which is the honest half of a game everyone has seen clips of winning. This demo is part of our Pragmatic Play demo games library.

Big Bass Bonanza at a Glance

ProviderPragmatic PlayPublished by Pragmatic Play and developed by Reel Kingdom — the studio behind the whole Big Bass series. Pragmatic’s own site carries the game and the SlotsLaunch feed files it under Pragmatic Play; SlotCatalog credits Reel Kingdom as the developer and files it under that studio. Both are true, and it is worth knowing which name is on which part.
Layout5 × 310 fixed paylines
RTP96.71%

VolatilityMedium to medium-high (no official rating)

Top line pay2,100× total betNote the unit. Every Amusnet game on this site publishes its max win as a per-LINE figure that has to be divided by the payline count; this is a straight multiple of your TOTAL bet, so 2,100× means what it says. Three sources agree on it: SlotCatalog, VegasSlotsOnline, and the SlotsLaunch feed’s own cap divided by the maximum bet.
JackpotNoneThere is no progressive jackpot on this game, and we are not going to imply one. Neither Pragmatic’s page nor either database lists a jackpot, and SlotCatalog — which does tag a Progressive Jackpot on games that carry one — does not here. The money-symbol collect is a base game feature, not a network prize.

How Big Bass Bonanza Plays

Big Bass Bonanza is a 5-reel, 3-row game on 10 fixed paylines, published by Pragmatic Play and developed by Reel Kingdom. It arrived in late 2020, and it has since become one of the most cloned templates in the industry — our own catalogue holds 45 Big Bass and Bigger Bass titles, every one of them descended from this game.

The studio documents the feature properly, which is rarer than it should be. Pragmatic’s own page says it in full: “money symbols with values of up to 2,000× can land in the bonus game. 3, 4, and 5 scatters trigger the feature with 10, 15, 20 free spins, respectively, where wilds collect all visible money symbols. Every fourth wild retriggers the feature with 10 additional spins, first with a 2× multiplier, then a , and finally a 10× multiplier on the third retrigger.”

So the whole shape of the round is on the record: the trigger, the spin counts, the collect rule, the retrigger rule and the entire multiplier ladder. Compare that with the Amusnet games we usually review, where the official sheet names a feature and stops.

The wild is the fisherman. During free spins he does not just substitute — he collects every money symbol visible on the reels at that moment. Money symbols do nothing on their own; they sit there until a fisherman lands and sweeps them up. Four fishermen add ten more spins and step the multiplier up, so reaching that 10× top step needs twelve wilds inside one round.

SlotCatalog classifies the mechanic as the Fishin’ Frenzy family — its feature tags literally read “Big Bass Bonanza, Fishin Frenzy Mechanics”, alongside “Cash Collector”. That is the database’s classification rather than a statement about who licensed what, but it is a fair description of where the idea comes from.

The Story Behind Big Bass Bonanza

This is the first Pragmatic Play game we have reviewed, and it arrives with a problem we have been tracking across the EGT catalogue for weeks — in its sharpest form yet.

Pragmatic Play publishes 96.71%. SlotCatalog publishes 95.67%.

That is not a typo on either side and it is not a rounding difference. SlotCatalog flags the title with an RTP Ranges warning and tags the feature “RTP range”, which means the game ships in more than one return configuration and the casino decides which one to run. Pragmatic prints the top build on its own page. A database that samples live casinos recorded a different one.

We have flagged this on two recent reviews — Witches’ Charm and Action Money — but on both of those the databases still quoted the studio’s own figure, so the warning was theoretical. Here it is not. A full percentage point of house edge separates the two numbers, and nothing in the game tells you which one you are playing.

To put the size of it in context: a point of RTP is roughly the difference between the best and worst game in the entire Amusnet catalogue we have documented — Action Money at 96.94% against Lucky Hot at 95.32%. On this game that whole spread can sit between two casinos offering what looks like the same title.

None of which makes it a bad game. It makes it a game where the operator matters more than the game does, and that is worth knowing before you pick where to play it.

Symbols and Paytable

Pragmatic publishes no symbol table, and neither database fills it in. What follows is what the studio does establish, which for once is most of what matters.

The fisherman — wild, and the whole pointIn the base game he substitutes. In free spins he does something else entirely: he collects every money symbol currently visible on the reels. Nothing else banks them. The official description is explicit that this only happens during the feature.
Money symbols — up to 2,000×Fish carrying cash values, which land in the bonus round and sit inert until a fisherman collects them. Pragmatic states the ceiling on a single symbol as 2,000×. Read the next section for why that number is larger than it first looks.
The scatterThree, four or five of them award 10, 15 or 20 free spins — official, and stated as a straight mapping with no reel restriction published. Note that VegasSlotsOnline’s spec box claims this game has no scatter symbols, which is plainly wrong and contradicted by its own review text.
The fish, the tackle and the card ranksThe paying symbols. No source publishes their values, and Pragmatic does not print a paytable on the game page.
What nobody publishesSymbol pay values, hit frequency, the scatter’s own pay, and any official volatility rating. Pragmatic gives you the RTP and the feature, and that is the whole sheet.

Here is the arithmetic worth carrying away. The advertised money symbol tops out at 2,000×. The game’s maximum win is 2,100×. So the biggest single money symbol is worth about 95% of the entire cap — there is only around 100× of headroom above it. That 2,000× is not a rung on a ladder toward some much larger number; collecting one is very nearly the best the game can do.

Bonus Features

🎣

Wilds collect every money symbol on screen

The mechanic the whole series is built on. Money symbols land carrying cash values and do nothing until a fisherman wild arrives, at which point he sweeps up all of them at once. It means the round’s value is decided by wild timing rather than by symbol combinations — a screen full of money symbols is worth nothing until the fisherman shows up.

A published multiplier ladder: 2×, 3×, 10×

Every fourth wild retriggers the round with ten more spins and steps the multiplier up — 2× on the first retrigger, 3× on the second, 10× on the third. All of it is on Pragmatic’s own page. Worth doing the sum: the 10× step needs twelve wilds inside a single feature.

📈

2,100× total bet — and it is a total-bet figure

Unlike every Amusnet game on this site, whose max win is published per LINE and has to be divided by the payline count, this is a straight multiple of your whole stake. SlotCatalog and VegasSlotsOnline both state 2,100×, and the SlotsLaunch feed’s own cap divided by the maximum bet gives the same number.

But the RTP is configurable, and the gap is a full point

Pragmatic publishes 96.71%. SlotCatalog records 95.67% and flags the title as having RTP ranges. The operator chooses which build to run and nothing on screen reveals it. This is the single most important thing to know about the game, and it is the reason it does not score higher here.

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The original of 45 games in our catalogue

Big Bass Bonanza is the 2020 game that started the series. Our library now holds 45 Big Bass and Bigger Bass titles — Splash, Megaways, 1000, Halloween, Christmas, Boxing, Football and on. They share a look and a mechanic, not a maths model: each one publishes its own RTP and ceiling, so do not carry these figures across.

No jackpot — and that is worth saying out loud

Most of the reviews on this site end up explaining a progressive, because the EGT catalogue runs two of them: Amusnet’s four-level Jackpot Cards and EGT Digital’s Bell Link hold-and-win. Neither applies here.

Big Bass Bonanza has no progressive jackpot at all. Pragmatic’s page lists none, VegasSlotsOnline lists none, and SlotCatalog — which does tag “Progressive Jackpot” on games that carry one, and does so on plenty of titles in our library — does not tag it here.

The money-symbol collect can look like a jackpot round if you have only seen clips of it: cash values on the reels, a collect mechanic, a big number at the end. It is not one. Those values are fixed multiples of your own stake, paid by the game, capped at 2,100× your bet. There is no pooled prize, nothing accumulating across a network, and no random trigger.

The practical consequence is a good one. Everything this game can pay is inside the published RTP, so the 96.71% describes the whole product rather than the reels minus a jackpot contribution. That is not true of the Jackpot Cards and Bell Link games elsewhere on this site.

The Gamble Feature, Properly Explained

There is no gamble feature on this game, and no source lists one. That is a genuine difference from the Amusnet and EGT Digital catalogue, where a red-or-black card double-up is standard and appears in the studio’s own feature list on almost every title.

Nor is there a bonus buy. The SlotsLaunch feed sets the bonus-buy flag to zero for this game and VegasSlotsOnline’s spec box agrees. Plenty of the later Big Bass releases do sell feature entry — the original does not, and we would not assume otherwise from a sequel.

So what you see is what the game does: base spins, a scatter-triggered round, and a collect mechanic. No side bets, no doubling ladder, nothing bolted on. On a game whose return is already concentrated in one feature, that is arguably a mercy.

What we like

  • The studio documents the entire feature — trigger, spin counts, collect rule, retrigger rule and the full multiplier ladder
  • 2,100× is a total-bet figure, corroborated three separate ways, with no per-line arithmetic to unpick
  • No progressive, so the published RTP describes the whole game rather than the reels minus a jackpot share
  • 10 fixed lines on a 5×3 grid makes it one of the easier modern slots to read on a phone
What to watch

  • The RTP is configurable and the gap is a full point — 96.71% published, 95.67% recorded by a database sampling live casinos
  • Pragmatic publishes no volatility rating at all; the two databases that do disagree with each other
  • The 2,000× money symbol is 95% of the maximum win, so the advertised big number and the ceiling are nearly the same thing
  • No official release date, no paytable and no hit frequency from anyone

How Big Bass Bonanza Compares

Two comparisons are useful: how the RTP gap looks against the spread of a whole catalogue, and how a total-bet ceiling compares with the per-line figures used elsewhere on this site.

GameStudioRTP (published)LinesMax winEffective ceiling
Big Bass BonanzaPragmatic / Reel Kingdom96.71%10 fixed2,100× total≈2,100× total
Big Bass Bonanza (as recorded live)Pragmatic / Reel Kingdom95.67%10 fixed2,100× total≈2,100× total
Action MoneyAmusnet96.94%2010,000× per line≈500× total
Fruits KingdomAmusnet96.25%1010,000× per line≈1,000× total
Lucky HotAmusnet95.32%5750× per line≈150× total

The first two rows are the same game. That is the point of the table. One row is what the studio publishes, the other is what a database sampling live casinos recorded, and the difference between them is larger than the difference between two entirely different Amusnet machines.

Rows three and five bound the EGT catalogue we have documented: Action Money at 96.94% is the best return of the 44 official Amusnet spec sheets we have read, and Lucky Hot at 95.32% is the worst. The spread between them is 1.62 points. The spread between Big Bass Bonanza’s two published figures is 1.04. One game can cost you almost as much as picking the wrong game entirely.

The ceiling column is a fairer fight than it looks. 2,100× your total bet genuinely beats everything in the EGT catalogue — the best effective ceilings there are around 1,000×, and that is after dividing the headline per-line figure by the payline count. This game reaches roughly twice as far, and states it in the unit players actually bet in.

RTP, Volatility and Win Potential

The RTP of Big Bass Bonanza is 96.71% according to Pragmatic Play, printed under “Basic Game Info” on its official game page. VegasSlotsOnline states the same figure.

SlotCatalog states 95.67%.

That is a full percentage point of difference on the same game, and it is not an error. SlotCatalog flags the title with an RTP Ranges warning and tags the feature “RTP range”. Pragmatic, like several large studios, certifies more than one return configuration for a game and lets the operator choose which to deploy. The studio’s page advertises the top build. A database that records what is actually live at casinos found a lower one.

Neither source is lying, and that is exactly the problem. 96.71% is true of the game Pragmatic certified. 95.67% may be true of the game your casino installed. There is no indicator in the interface, no paytable note, and no way to tell from the demo, because a demo runs whatever build that operator is serving.

For scale: across the 44 official Amusnet spec sheets we have read for this site, the entire catalogue spans 95.32% to 96.94% — a range of 1.62 points from worst game to best. The gap between this one game’s two published figures is 1.04 points. Choosing the wrong casino for Big Bass Bonanza can cost you almost as much as choosing the wrong game altogether.

Volatility is the other gap. Pragmatic publishes no rating — unlike Amusnet, which prints an X-out-of-5 figure on every sheet and lets us compare titles directly. VegasSlotsOnline calls it “Medium”; SlotCatalog calls it “Med-High”. One step apart, both secondary, neither authoritative. In practice a 2,100× ceiling delivered through a scatter-triggered collect round does not behave like a medium game, whatever the label says: the return is concentrated in a feature you may not see for a long stretch.

Bets, Bankroll and Session Planning

Pragmatic publishes no bet range on the game page. Both databases give 0.10 to 250 and, unusually, they agree exactly — SlotCatalog and VegasSlotsOnline print the same minimum and maximum. That is firmer than the generic defaults we normally have to reject, but it is still not the studio’s number, and the live range is set per casino.

The 10 lines are fixed, so there is no line selector and no variance dial. Your only choice is stake size, which makes bankroll planning simple: the ceiling is a flat 2,100× whatever you stake, with no per-line arithmetic to unpick first.

Where this game does need thought is session length rather than stake size. Everything worth having is inside the free-spins round, and the round is worth what the wild timing makes it worth — money symbols sitting on the reels pay nothing until a fisherman lands. That means the distribution has a long flat middle: plenty of triggered rounds that collect two or three small values and end. Plan for the rounds that do nothing, not for the one in the clips.

Playing Big Bass Bonanza on Mobile

SlotCatalog records the game as JS/HTML5 at 13.7 MB, so it runs in a phone browser with no download.

A 5×3 grid with ten fixed lines is about as readable as a modern slot gets on a small screen, and the feature helps: the thing you are watching for is a fisherman landing anywhere, not whether a symbol sits on an active payline. Money values are printed on the fish themselves, so the round stays legible even at phone size.

Five Things to Know Before You Spin

  1. Ask which RTP build your casino runs. Pragmatic publishes 96.71%; a database sampling live casinos recorded 95.67%. On this game that question is worth more than any strategy.
  2. Money symbols pay nothing until a wild lands. A screen full of cash values is worth zero if no fisherman turns up before the spins run out. That is the whole variance of the round.
  3. The 10× step needs twelve wilds. Four wilds per retrigger, three retriggers to reach it. Knowing that stops the ladder feeling closer than it is.
  4. Read 2,100× as a total-bet figure. It is not a per-line number like the Amusnet games on this site, so there is nothing to divide — but it also means the advertised 2,000× money symbol is 95% of the cap on its own.
  5. Do not carry these numbers to the sequels. We hold 45 Big Bass titles in the catalogue and each publishes its own RTP and ceiling. Splash, Megaways and 1000 are different games.

Where to Play Big Bass Bonanza for Real Money

Big Bass Bonanza is one of the most widely distributed slots in the market, so finding it is not the problem — finding it at the right return is. This game ships in more than one RTP configuration and the operator chooses, so ask which build a casino runs before you deposit. The casinos below are the ones we have checked for licence, terms and payout speed.

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Who Big Bass Bonanza Is For

Play it if you want the mechanic that defined a generation of slots, in its original and cleanest form. The feature is fully documented by the studio, the 2,100× ceiling is real and stated in total-bet terms, there is no jackpot skimming the RTP, and the board is simple enough to follow on a phone. If you have played any of the 45 descendants in our library, this is the one they are all copying.

Skip it if you cannot find out which RTP build your casino is running — or take that question seriously enough to ask before depositing. A full point is a lot to give away on a game you could play elsewhere for less. Skip it too if you want a documented volatility figure before you commit, because Pragmatic does not publish one and the two databases that do cannot agree.

Big Bass Bonanza FAQ

What is the RTP of Big Bass Bonanza?
Pragmatic Play publishes 96.71% on its own game page, and VegasSlotsOnline agrees. However, SlotCatalog records 95.67% and flags the title as having configurable RTP ranges, which means the game ships in more than one return build and the casino chooses which to run. A full percentage point separates the two figures and nothing in the game tells you which one you are playing.
What is the maximum win in Big Bass Bonanza?
2,100× your total bet. SlotCatalog and VegasSlotsOnline both state it, and the SlotsLaunch feed’s own cap divided by the maximum bet gives the same number. Note it is a total-bet multiple, not the per-line figure the Amusnet games on this site publish, so there is nothing to divide.
How do the free spins work?
Three, four or five scatters award 10, 15 or 20 free spins. During the round, money symbols land carrying cash values and pay nothing until a fisherman wild appears — he then collects every money symbol visible on the reels. Every fourth wild retriggers the round with ten more spins and raises the multiplier: 2×, then 3×, then 10×. All of that is stated on Pragmatic’s own page.
How many wilds do you need for the 10× multiplier?
Twelve, inside a single feature. Four wilds trigger each retrigger, and the 10× arrives on the third one, so 4 + 4 + 4. The multiplier ladder stops there — no higher step is published.
Does Big Bass Bonanza have a jackpot?
No. There is no progressive jackpot on this game. Neither the studio nor either database lists one, and SlotCatalog does tag a progressive on games that have one. Everything the game can pay sits inside the published RTP, which is not true of the Jackpot Cards and Bell Link games elsewhere on this site.
Who actually made Big Bass Bonanza?
It is published by Pragmatic Play and developed by Reel Kingdom, the studio behind the whole Big Bass series. Pragmatic’s site carries it and the SlotsLaunch feed files it under Pragmatic Play; SlotCatalog credits Reel Kingdom as the developer. Both descriptions are accurate — they refer to different roles.
Is there a bonus buy?
Not on this game. The SlotsLaunch feed sets the bonus-buy flag to zero and VegasSlotsOnline agrees. Several of the later Big Bass releases do sell feature entry, but the 2020 original does not.
How volatile is Big Bass Bonanza?
Pragmatic publishes no volatility rating at all, which is a real gap compared with Amusnet’s X-out-of-5 figures. VegasSlotsOnline calls it Medium and SlotCatalog calls it Med-High. In practice a 2,100× ceiling delivered through one scatter-triggered round concentrates the return in a feature you may wait a while to see.

Our Verdict

8.4/ 10

A great feature, and a question you have to ask before you play it

Big Bass Bonanza earns its reputation. The collect mechanic is genuinely well designed — money symbols that sit there taunting you until a fisherman turns up is a better piece of tension engineering than most bonus rounds manage — and Pragmatic documents the whole thing openly, from the 10/15/20 spin mapping to the 2×/3×/10× retrigger ladder. After weeks of reviewing games whose studios publish a feature name and nothing else, that transparency is worth saying out loud. The 2,100× ceiling is a total-bet figure too, roughly double the best effective ceiling in the whole EGT catalogue we have documented.

Then there is the number that should decide where you play it. Pragmatic publishes 96.71%. SlotCatalog, which samples live casinos, records 95.67%, and flags the game as having configurable RTP ranges. Both can be true at once, because the operator picks the build. A full percentage point is close to the entire spread between the best and worst game in a catalogue of forty-four — and here it sits inside one title, invisible.

We rate it 8.4. The feature, the documentation and the ceiling would carry it higher. What holds it back is that the most important number on the page is the one you cannot verify from your seat, and that Pragmatic publishes no volatility rating to go with it.

One last thing worth knowing: this is the original. Our catalogue now holds 45 Big Bass and Bigger Bass titles, and they share a look and a mechanic rather than a maths model. Splash, Megaways, 1000 and the rest each publish their own RTP and their own ceiling. Do not carry these figures across — and if a casino shows you one of the sequels, check its numbers separately.

Similar Pragmatic Play Slots

The rest of the series, and where this game sits against the catalogue we review. The Big Bass titles below are playable demos on our hub — we have not reviewed them, and each publishes its own maths.

Read our Bigger Bass Bonanza review

Reviewed · 5×4 and 12 lines, 4,000×
Bigger Bass BonanzaRead the review →
Read our Big Bass Splash review

Reviewed · 5,000×, the highest ceiling in the series
Big Bass SplashRead the review →
Read our Big Bass Bonanza Megaways review

Reviewed · 46,656 ways, same 4,000× ceiling
Big Bass Bonanza MegawaysRead the review →
Read our Action Money review

Reviewed · 96.94%, the best RTP we have documented
Action MoneyRead the review →

Or browse every game we have rated in the EGT slot reviews hub.

Play responsibly — 18+.