Big Bass Bonanza started life in 2020 as Pragmatic Play’s answer to Fishin’ Frenzy — and promptly out-bred it. Thirty-eight official sister slots later, this is the fastest-growing family in UK casinos — a 39th, Big Bass Vegas 1000, is already announced for September 2026. If you're after slots like Big Bass Bonanza, here’s every boat in the fleet compared: Splash, Megaways, Bonanza 1000, Splash 1000 and the rest, with RTPs, max wins and release order.

Where to Play Big Bass Slots

Every Big Bass Bonanza version at a glance

All Reel Kingdom games, published through Pragmatic Play. Two things stand out against rival families: the RTPs hold remarkably steady at the strong end of the industry (operators can select lower versions, so always check your casino’s paytable), and the release cadence — nothing else in UK slots ships this often.

GameReleasedRTPMax winVolatility
Bigger Bass Bonanza16 Sep 202196.71%4,000xHigh
Big Bass Bonanza Megaways18 Nov 202196.70%4,000xHigh
Big Bass Splash23 Jun 202296.71%5,000xHigh
Keeping it Reel24 Oct 202296.07%10,000xHigh
Hold & Spinner27 Mar 202396.07%10,000xHigh
Bigger Bass Blizzard28 Nov 202296.08%4,000xHigh
Amazon Xtreme19 Jun 202396.07%10,000xHigh
Secrets of the Golden Lake8 Apr 202496.07%5,000xVery high
Big Bass Bonanza 100024 Apr 202596.51%20,000xVery high
Big Bass Splash 10008 Dec 202596.52%25,000xVery high

RTP and max win confirmed directly against each game’s own listing on pragmaticplay.com — checked 6 July 2026. Reel Kingdom titles ship in multiple operator-selectable RTP versions (typically the default shown here, plus lower 95.x%/94.x% builds), which makes paytable-checking more important in this family than any other on this site.

All Big Bass Bonanza versions compared, thirty-eight boats and counting
Five years, thirty-plus boats: the heart of the fleet at a glance.

Every Big Bass sister slot, reviewed

In release order, because with this family the chronology is the story — each boat fixes or escalates the one before it.

1. Bigger Bass Bonanza

Nine months after the original, the first sequel did the obvious thing well: a fourth row, twelve paylines, and more scatters in the pool, making the all-important free spins noticeably easier to reach. It’s the original with the friction sanded off — and for many regulars it quietly replaced the 2020 game as their default cast. Pragmatic’s own listing confirms a 96.71% RTP and a 4,000x max win, both matching the original’s strong default.

Bigger Bass Bonanza base game
Bigger Bass: the four-row grid that made retriggers routine.

2. Big Bass Bonanza Megaways

November 2021’s entry licensed Big Time Gaming’s engine and let the reels breathe — up to 46,656 ways with a 96.70% published default. The fisherman still collects every cash fish on screen; there are simply far more screens for the fish to hide in. The family’s first proof it could wear other studios’ engines without losing its accent.

Big Bass Bonanza Megaways free spins
Megaways: six reels of water, one very busy fisherman.

3. Big Bass Splash

June 2022, and the moment the family found its modern shape. Splash added a feature-buy menu, dynamite scatters, and a 5,000x ceiling at a 96.71% default — and became arguably the most-streamed slot in Britain for a year. If the original is the family’s birthplace, Splash is its capital city.

Big Bass Splash free spins
Splash: the bonus that colonised every UK streaming channel.

4. Big Bass: Keeping it Reel

The engineers’ favourite. October 2022’s entry changed one rule with outsized consequences: the fisherman-wild multipliers persist through the whole bonus instead of resetting, so every extra wild compounds on the last. Sessions swing harder, and the late-bonus maths can turn genuinely silly. Pragmatic’s own page confirms a 96.07% RTP — the lowest default in the family so far — against a 10,000x ceiling. The thinking angler’s Big Bass.

Big Bass Keeping it Reel free spins
Keeping it Reel: multipliers that refuse to reset.

5. Big Bass Bonanza: Hold & Spinner

December 2022 grafted the hold-and-win format onto the franchise: land the money symbols, lock them, respin the rest. It plays closer to a Gold Blitz-style collector than a classic Big Bass, which is exactly why it earns its place — it catches the players the main line doesn’t.

Big Bass Bonanza Hold & Spinner feature
Hold & Spinner: the fisherman tries the respin business.

6. Bigger Bass Blizzard — Christmas Catch

The family’s December tradition, and the best of its seasonal line. Blizzard reskins Bigger Bass in snow, adds festive money symbols, and returns to lobby front pages every winter like a migratory bird. Mechanically familiar; commercially unstoppable.

7. Big Bass Amazon Xtreme

March 2023 took the boat up-river: piranha symbols that devour the low pays (leaving richer reels behind) and a jungle take on the escalating-multiplier bonus. It’s the family’s most aggressive redesign of its own basics, and the entry critics tend to rate above its fame.

Big Bass Amazon Xtreme gameplay
Amazon Xtreme: piranhas thinning the paytable in real time.

8. Big Bass Secrets of the Golden Lake

February 2024’s entry is the family in its baroque phase — golden fish, lake-spirit upgrades, and layer upon layer of collection mechanics on the familiar chassis. Gorgeous to look at, and a good test of whether you find the modern additions delicious or busy.

Big Bass Secrets of the Golden Lake gameplay
Golden Lake: the fleet’s most decorated vessel.

9. Big Bass Bonanza 1000

Pragmatic’s own launch release quotes Irina Cornides, the studio’s Chief Operating Officer: “Big Bass Bonanza 1000 combines two of Pragmatic Play’s most popular slots series, pairing everyone’s favourite fisherman with 1,000x max money symbols and wins of up to 20,000x.” Released 24 April 2025, it gave the original the “1000” treatment Pragmatic first applied to Gates of Olympus: same game on the surface, substantially wilder distribution underneath, with the top fish rescaled toward a 1,000x-per-symbol logic. It exists for one kind of player, says so honestly, and closes the loop — the family’s first game, rebuilt for the players its own success created.

Big Bass Bonanza 1000 gameplay
Bonanza 1000: the 2020 original, re-armed for 2025.

10. Big Bass Splash 1000

Released 8 December 2025, this is the franchise’s current record holder and the natural sequel to both Splash and Bonanza 1000 at once — the “1000-series” treatment applied to the game that already had the biggest mainline ceiling. Pragmatic’s own launch release, again quoting COO Irina Cornides, states: “Our Big Bass collection and supercharged ‘1000’ series of slots are popular with players across all demographics. Big Bass Splash 1000 augments both with bonus game modifiers, enhanced multipliers of up to 1,000x, and a massive 25,000x max win.” RTP sits at 96.52% by Pragmatic’s own listing, Very high volatility, and that 25,000x cap is the highest published figure anywhere in the family — a full ten times the original 2020 game’s ceiling.

Close cousins outside the family

The bloodline runs backwards to Blueprint’s Fishin’ Frenzy — the 2014 game whose fisherman-collects-fish formula Reel Kingdom borrowed and industrialised. Games Global’s Fishin’ Pots of Gold and Blueprint’s own Big Catch Bass Fishing fish the same waters. The genre now has three dynasties; this one just publishes fastest.

The complete family tree

Thirty boats and counting — the fleet beyond the nine reviewed:

GameIn one line
Big Bass Christmas BashThe other December edition, closer to the original’s maths
Big Bass Halloween / Halloween 2 / 3The October ritual to Blizzard’s December one
Big Bass Day at the RacesFisherman meets race-day crossover
Big Bass Return to the RacesThe sequel lap
Big Bass Boxing Bonus RoundThe sports-crossover experiment, gloves on
Big Bass Football BonanzaMatch-day edition for tournament summers
Bigger Bass SplashSplash’s own bigger-grid sequel
Big Bass Splash 1000The 1000-series treatment applied to Splash
Big Bass Floats My BoatLater entry with boat-based modifiers
Big Bass Mission Fishin’Objective-driven variant
Big Bass Reel Repeat / Raceday RepeatRepeat-spin mechanics on the chassis
Big Bass Blast / 3 Reeler / Master ClassicFormat experiments, from compact reels to retro styling
Christmas Big Bass BonanzaThe original’s own December cut — a separate game from Christmas Bash
Big Bass Xmas Xtreme / Bigger Bass Blizzard Christmas CatchTwo more December boats — the festive shelf runs four deep
Big Bass Hold & Spinner MegawaysThe respins hybrid re-rigged on Megaways reels
Big Bass Surf’s UpThe beach-season edition
Big Bass It’s a WhopperBuilt around outsized fish values, as the name promises
Big Bass Trophy Catch / Trophy FishingThe competition-angling pair
Big Bass Vegas Double Down DeluxeThe Strip-flavoured remix
Big Bass 3 Little FishThe fry get top billing for once
Big Bass Reel ActionAnother format experiment on the familiar chassis
Big Bass BingoThe brand’s leap out of slots entirely, into bingo rooms
Jackpot Bonanza editionsProgressive-jackpot builds of several titles
Big Bass Vegas 1000 (announced)Confirmed for release 24 September 2026 — not live yet

Reel Kingdom ships several entries a year, so treat this list as a snapshot — checked 6 July 2026.

Every Big Bass game in release order

Pulling together the dates already verified in the comparison table above, plus a handful more confirmed directly against Pragmatic Play’s own newsroom, here is the family in the order it actually shipped. This covers the twenty releases with a specific date attached; the rest of the thirty-boat-plus family tree above ships without a publicly dated announcement, so those are left out here rather than guessed at.

DateGameSource
December 2020Big Bass BonanzaThe original — quick facts above
16 Sep 2021Bigger Bass BonanzaFirst sequel, verified in the comparison table above
18 Nov 2021Big Bass Bonanza MegawaysVerified in the comparison table above
2 Dec 2021Christmas Big Bass BonanzaPragmatic Play’s own newsroom, 2 Dec 2021
23 Jun 2022Big Bass SplashVerified in the comparison table above
24 Oct 2022Keeping it ReelVerified in the comparison table above
28 Nov 2022Bigger Bass Blizzard (Christmas Catch)Verified in the comparison table above, confirmed by Pragmatic Play’s own newsroom
27 Mar 2023Hold & SpinnerVerified in the comparison table above
19 Jun 2023Amazon XtremeVerified in the comparison table above
28 Aug 2023Big Bass Hold & Spinner MegawaysPragmatic Play’s own newsroom, 28 Aug 2023
7 Mar 2024Big Bass Day at the RacesPragmatic Play’s own newsroom, 7 Mar 2024
8 Apr 2024Secrets of the Golden LakeVerified in the comparison table above
17 Jun 2024Big Bass Mission Fishin’Pragmatic Play’s own newsroom, 17 Jun 2024
Sep 2024Big Bass Vegas Double Down DeluxePragmatic Play’s own newsroom, Sep 2024
18 Nov 2024Big Bass Xmas XtremePragmatic Play’s own newsroom, 18 Nov 2024
Feb 2025Big Bass Return to the RacesTrade press coverage, Feb 2025 — not independently confirmed on Pragmatic Play’s own newsroom
24 Apr 2025Big Bass Bonanza 1000Verified in the comparison table above
10 Jun 2025Big Bass Boxing Bonus RoundPragmatic Play’s own newsroom, 10 Jun 2025
8 Dec 2025Big Bass Splash 1000Verified in the comparison table above
24 Sep 2026 (announced)Big Bass Vegas 1000Confirmed for release, not live yet — see the family tree above

Dates cross-checked against Pragmatic Play’s own game pages and newsroom articles at pragmaticplay.com — checked 10 July 2026. Titles without a confirmed announcement date are listed in the complete family tree above rather than dated here.

The original Big Bass Bonanza: quick facts

ProviderReel Kingdom, published by Pragmatic Play
First releasedDecember 2020
Layout5 reels × 3 rows, 10 fixed paylines
RTP96.71% default (operator-selectable lower versions exist)
VolatilityHigh
StakesFrom 10p a spin
Main featureFree spins: fisherman wilds collect all fish values, with retrigger multipliers up to 10x
Max win2,100x stake

✓ Facts checked 3 July 2026

The family DNA: the catch, upgraded

Reel Kingdom took Fishin’ Frenzy’s one perfect idea and added the two ingredients that define this family.

The fisherman wild that collects

As in the elder game, fish land carrying cash values and the fisherman gathers every one on screen. The upgrade: here he’s a wild, so he pays his way even when the nets are empty.

The retrigger ladder

The family’s signature. Collect enough fisherman wilds during the bonus and you don’t just retrigger — you climb: +10 spins with a 2x multiplier on the fish, then 3x, then 10x. Every Big Bass session is really a question of how far up this ladder you get, and every sequel remixes exactly this climb (Keeping it Reel makes it persistent, Amazon Xtreme feeds it piranhas, 1000 steepens the whole staircase).

The escalation business model

The third ingredient isn’t a mechanic, it’s a schedule: seasonal editions every October and December, a crossover most summers, and a heavier-calibre remix every year or so. No other family treats its own catalogue as a release calendar quite like this.

Big Bass Bonanza free spins with the fisherman wild
The original bonus: fisherman wilds, fish values, and the ladder that started it all.

The maths: strong defaults with an asterisk

At its published default the family is among the best-paying mainstream slots in the UK — 96.71% on the original and Splash beats almost everything in the Rainbow Riches or Age of the Gods stables. The asterisk: Pragmatic ships operator-selectable RTP versions, and plenty of UK sites run the 95% or 94% builds. Same game, same fish, quietly different deal — the in-game info screen tells you which version you’re holding, and in this family that check is worth thirty seconds every single time.

Expected average cost per 100 spins at the 96.71% default:

Stake100 spins stakedExpected average cost (3.29%)
10p£10£0.33
£1£100£3.29
£5£500£16.45

✓ Calculated from the published 96.71% default RTP — checked 3 July 2026

High volatility means real sessions live far from these averages — the ladder pays rarely and hard. Budget like it’s fishing: most days, the water wins. Our responsible gambling tools are the life jacket.

History and legacy

In December 2020, Reel Kingdom — a small studio publishing through Pragmatic Play — released what looked like a straightforward tribute to Blueprint’s six-year-old Fishin’ Frenzy. What happened next reshaped UK slots: the imitation out-shipped, out-marketed and eventually out-grew the original. Bigger Bass within a year; Megaways within two; then Splash, which streaming culture adopted as a house game and turned into a phenomenon.

The family has since released at a pace no rival matches — seasonal editions on a fixed calendar, sports crossovers, engine borrowings, and now the 1000-series remixes. Where Fishin’ Frenzy aged into an institution, Big Bass turned itself into a production line.

Why this franchise still matters

Because it proved the fastest route to owning a genre is to publish relentlessly inside it. Big Bass took someone else’s mechanic and built the industry’s most disciplined release machine around it — a new boat for every season, every audience and every volatility appetite. Slot families used to be back-catalogues; this one behaves like a live service. The rest of the industry has spent five years learning to copy the copier.

Beyond the reels: seasons, sports and jackpot waters

The seasonal calendar

Halloween in October, Blizzard or Christmas Bash in December — the family’s seasonal editions are as reliable as supermarket mince pies, and lobbies promote them the same way. No other slot franchise has annualised itself so completely.

The sports crossovers

Day at the Races, Boxing Bonus Round, Football Bonanza: whenever Britain watches sport, the fisherman sells a tie-in. They’re light remixes, but they mark how far the brand has drifted from being merely a slot toward being a mascot.

Jackpot Bonanza

Several titles ship in Jackpot Bonanza builds with progressive tiers attached — the family’s answer to Blueprint’s Jackpot King editions of its rival. Same trade as ever: a slice of RTP for a ticket to a shared pot.

Who makes it, and is it licensed?

Reel Kingdom is a subsidiary studio publishing exclusively through Pragmatic Play, which is why every Big Bass title carries Pragmatic branding in casino lobbies and runs under Pragmatic’s own regulatory approvals rather than a separate licence of its own. Pragmatic Play (Gibraltar) Limited holds UK Gambling Commission account 56015, confirmed via the Commission’s public register.

What players say

Big Bass discourse splits by generation of player. Streamers and their audiences treat Splash and the 1000-series as canon and rate the family for its ceiling-chasing bonuses; longer-memoried players grumble that it’s Fishin’ Frenzy with a marketing department. Two complaints recur with real substance: the operator-selectable RTP versions (players discovering their casino runs the 94% build feel legitimately stung) and sequel fatigue — even fans struggle to say what separates boat twelve from boat fifteen. Nobody, notably, complains about the core loop. The ladder still lands.

The biggest Big Bass wins

The ceilings tell the family’s story in numbers: 2,100x on the 2020 original, 5,000x on Splash two years later, 20,000x on 2025’s Bonanza 1000, and 25,000x — the current family record — on December 2025’s Splash 1000. At Splash’s cap, a £1 spin pays £5,000 — and the retrigger ladder means the biggest recorded community wins overwhelmingly come from deep bonus runs at 10x, not lucky base hits. This is also the most-streamed slot family in Britain, so its biggest wins are unusually well documented; here’s a real Splash session for the flavour:

Third-party player recording, embedded for illustration — their water, not typical, not ours.

The best Big Bass Bonanza slot for your bankroll

If you want…PlayWhy
The definitive modern entryBig Bass SplashThe family at its peak, 5,000x on tap
The gentlest introductionThe 2020 originalCleanest version of the loop
Compounding chaosKeeping it ReelMultipliers that never reset
Maximum waysMegaways46,656 of them at 96.70%
A different format entirelyHold & SpinnerRespins instead of spins
The deep endBonanza 1000 or Splash 1000The rebalanced heavy-calibre builds
DecemberBigger Bass BlizzardThe ritual, refined

Mechanic contrasts outside Big Bass Bonanza

Vikings Go, Templar Tumble and Action Bank do not share Big Bass Bonanza’s fishing lineage. They are contrast picks for sticky-wild progression, maximum-volatility mystery reveals and a pub-style bank bonus. Big Bass remains the collection-free-spins choice, where fisherman wilds gather the visible fish values.

SeriesChoose them if…Choose Big Bass Bonanza if…
Vikings Go (Yggdrasil Gaming)You'd rather have medium-high volatility, closer to The Vikings Go Berzerk sticky-wild featureA high-volatility session centred on Fisherman wilds collect all fish values suits you better
Templar Tumble (Relax Gaming)A maximum (5/5)-volatility session built around Mystery Reveal appeals moreYou're after Reel Kingdom's take instead — Fisherman wilds collect all fish values
Action Bank (Barcrest — now part of Light & Wonder)A medium-volatility session built around The Big Bank Bonus appeals moreYou'd rather have high volatility, built around Fisherman wilds collect all fish values

Use this table to compare feature structure, not theme. For genuinely close fishing alternatives, follow Fishin’ Frenzy and Big Catch Bass Fishing in Related research below.

Our verdict on the original

Sister Slots score: 8/10 — the borrowed idea that built an empire.

Features8/10 — the retrigger ladder is the genre’s best single upgrade
Win potential7/10 — 2,100x is honest for the era, dwarfed by its own children
Design7/10 — clean, warm, built to be understood at a glance
Playability9/10 — ten lines, 10p, and a bonus everyone chases the same way

Play the original if you want the loop at its purest and a strong default RTP. Pick a sister slot if you’ve outgrown it — that’s what the fleet is for, and the fleet knows it.

Big Bass FAQs

How many Big Bass games are there?

Thirty-plus official titles and rising, including seasonal editions, sports crossovers, bingo spin-offs and 1000-series remixes — Reel Kingdom ships several new entries a year.

What is the RTP of Big Bass Bonanza?

96.71% at the published default — but Pragmatic ships operator-selectable versions around 95% and 94%, so check the in-game info screen at your casino.

Is Big Bass Bonanza the same as Fishin’ Frenzy?

No — it’s Reel Kingdom’s 2020 take on the fishing formula Blueprint’s Fishin’ Frenzy established in 2014. Different developers, different families, same beloved mechanic. See our head-to-head comparison for exactly how the two stack up.

Which Big Bass game has the biggest max win?

Big Bass Splash 1000, at 25,000x stake — Pragmatic’s own December 2025 launch release confirms the figure, a full ten times the 2020 original’s 2,100x ceiling.

Who makes Big Bass Bonanza?

Reel Kingdom, a studio that publishes exclusively through Pragmatic Play — which is why the games carry Pragmatic branding in lobbies.

What is the retrigger ladder?

Collect four fisherman wilds during the bonus and you gain ten more spins with the fish values multiplied — 2x, then 3x, then 10x on successive climbs. It’s where the family’s biggest wins live.

Why does my casino’s version pay differently?

Pragmatic offers each game in several RTP builds and the operator chooses. The game’s info screen shows the exact figure your casino runs.

Are Big Bass slots fair?

Yes — Pragmatic Play is licensed by the UK Gambling Commission and the games use independently tested RNGs with published RTP versions.

Related research: Map the studio in Pragmatic Play families, compare mechanic definitions in Features, then read the related Fishin’ Frenzy and Rainbow Riches families.

Sources & Verification

Primary sources checked 6 July 2026: Pragmatic Play’s own game pages for RTP, max win and feature data across the family, including Bigger Bass Bonanza, Big Bass Splash, Big Bass Bonanza 1000 and Big Bass Splash 1000; Pragmatic Play’s own press releases for exact release dates and executive quotes, including the Big Bass Bonanza 1000 launch and Big Bass Splash 1000 launch; the UK Gambling Commission’s public register (Pragmatic Play (Gibraltar) Limited, account 56015); and Pragmatic Play’s own games catalogue for cross-checking the full 38-game family list and release dates for entries outside the nine reviewed in depth.

Paul Miller

· Slots Editor

Paul edits Sister Slots’ UK slot-family guides. He researches provider histories, mechanics and published game data, checking material claims against provider sources and relevant public records. Unless a page states a dated hands-on method, it reflects documented editorial research rather than real-money play. More about Paul →