Reel Kingdom Slots: Every Big Bass Bonanza Game Ranked

One studio, one fisherman, five of the UK’s twenty most-played slots. Reel Kingdom is the quietest giant in British gaming: a small team founded in 2019 that publishes everything exclusively through Pragmatic Play, says almost nothing about itself, and happens to have created Big Bass Bonanza — the game that has sat at or near the top of the UK most-played charts since 2021 — plus the ever-expanding fleet of sequels around it. Because its games ship under Pragmatic Play’s UK-licensed entities, every one of them is legally available at British casinos. Our verdict: 7/10. Here’s every Big Bass game ranked, the maths trend the sequels hide, and what little can actually be verified about the company.

Where to Play Reel Kingdom Slots

Reel Kingdom at a glance

The essentials on Britain’s most-played studio you’ve never heard of.

✓ Facts checked against the UKGC public register (accounts 46683 and 56015), reelkingdom.com’s own footer and games list, and Pragmatic Play’s official release announcements — 12 July 2026

UK availability: fully supplied, via Pragmatic

Reel Kingdom has never held a UKGC licence in its own name and doesn’t need one: every game is distributed through Pragmatic Play’s platform and supplied to British operators under Pragmatic’s licensed entities — Arrise Solutions (Malta) Ltd, account 46683 on the register and active since 2017, alongside Pragmatic Play (Gibraltar) Ltd, account 56015, the entity reelkingdom.com itself cites in its footer. In practice this means Reel Kingdom titles are as legally and widely available in the UK as any Pragmatic slot — which is to say, on virtually every licensed casino in the country. Big Bass Bonanza went straight to the top of the UK most-played rankings on release and the franchise has kept as many as five titles in the national top twenty since.

The essential Reel Kingdom slots

A catalogue this focused ranks differently: it’s less “the studio’s range” than one idea refined a dozen times. Specs below are from Pragmatic Play’s official game pages, and the RTPs quoted are the maximum configuration — Pragmatic offers operators lower settings, so check the paytable on the site where you play.

1. Big Bass Bonanza (2020)

The origin. Ten lines, 96.71% RTP at top configuration, a 2,100x ceiling — modest numbers that hide the most influential UK slot of the decade. The fisherman wild collects every money symbol on screen during free spins, four wilds add ten more spins and step the multiplier up, and that loop proved so compulsive it rewired what British players expect from a bonus round. Went straight to number one in the UK on release in December 2020 and has barely left the charts since.

2. Big Bass Splash (2022)

The fan favourite of the sequels — same 96.71% top RTP as the original but a 5,000x ceiling and a tournament-fishing dress-up, with bigger money values in the pool. For many players this, not the original, is now the default Bass.

3. Bigger Bass Bonanza (2021)

The first sequel did exactly what it says: five reels became five-by-four, ten lines became twelve, and the ceiling roughly doubled to 4,000x at the same 96.71%. The free-spins retrigger ladder is unchanged — which is the point.

4. Big Bass Bonanza Megaways (2021)

The franchise borrowed Big Time Gaming’s engine for its wildest variant — up to 46,656 ways at 96.70%, with the fisherman collect mechanic intact under the shifting reel heights. The most volatile ride of the early era.

5. Big Bass — Hold & Spinner (2022)

The first maths reset — a respin-based money collect bolted onto the formula, a 5,000x ceiling, and the quiet arrival of the 96.07% RTP band that every sequel since has shipped with.

6. Big Bass Amazon Xtreme (2023)

The fisherman goes jungle — 96.07%, but the ceiling jumps to 10,000x, the franchise’s biggest to that point. Piranhas, dynamite fishing and the most aggressive volatility profile in the family.

7. Fishin’ Reels (2021)

The other fishing game — a gentler, non-Bass take at 96.50% with a more classic free-spins structure. Proof the studio can work outside its own franchise, even if the theme stayed on the water.

8. Excalibur Unleashed (2023)

The rare non-fishing release: Arthurian legend at 96.05% with a 5,000x ceiling. A competent progressive-multiplier slot that mostly demonstrates how completely the Bass defines this studio — it’s the catalogue’s footnote, not its second act.

Reel Kingdom vs its rivals

The comparison that matters is Blueprint’s Fishin’ Frenzy: the fisherman-collects-cash idea existed before Big Bass, and UK players had been hammering it for years. What Reel Kingdom did was take that formula, add the retrigger-and-multiplier ladder, and out-execute the original so thoroughly that the imitator now defines the genre. Meanwhile Pragmatic Play is less a rival than a symbiont — its distribution reach made the Bass ubiquitous, and the Bass repays it as Pragmatic’s biggest UK calling card.

The Big Bass dynasty in depth

The 96.71% originals

Big Bass Bonanza, Bigger Bass Bonanza, Big Bass Splash and Christmas Bash all share the flagship maths — 96.71% at top configuration — and the purest version of the collect-and-retrigger loop. This is the core canon.

The engine experiments

Big Bass Bonanza Megaways (96.70%) grafts the formula onto BTG’s variable reels; Hold & Spinner (96.07%) adds a respin collect; Pompeii Megareels Megaways (96.00%) goes double-grid with a 10,000x ceiling. Each keeps the fisherman, changes the chassis.

The themed sequels

Amazon Xtreme, Day at the Races, Halloween — the modern production line, all at 96.07%, all pushing ceilings to 10,000x while trimming a two-thirds of a percentage point off the RTP. One idea, seasonal costumes, slightly worse maths.

Signature mechanics & technology

Everything rests on one loop. Money symbols land carrying cash values; the fisherman wild collects every visible value when he appears in free spins; every fourth wild awards ten extra spins and steps the win multiplier up — 2x, 3x, then to 10x depending on the title. It’s a compulsion engine of rare purity: always another wild to chase, always a bigger multiplier one retrigger away. Technically the games are Pragmatic Play deliveries — same client, same HTML5 stack, same operator integrations — which is why they run flawlessly on every UK site. The studio’s engineering contribution is restraint: while rivals stack six mechanics per game, Reel Kingdom ships the same clean, legible screen every time and lets the maths ladder do the work.

Reel Kingdom slots RTP: what the numbers actually say

There’s a clear trend line, and it points down. The 2020–22 core — Big Bass Bonanza, Bigger, Splash, Christmas Bash — ships at 96.71% top configuration; everything since Hold & Spinner sits at 96.00–96.07%. In exchange the ceilings climbed, from 2,100x on the original to 10,000x on Amazon Xtreme, Pompeii and Day at the Races — the classic trade of long-run value for headline volatility. Two caveats: these are maximum configurations, and Pragmatic supplies operators with lower RTP settings, so the same game can pay materially less depending on the casino — check the in-game paytable. And chasing the retrigger ladder is exactly the sort of play where session limits earn their keep.

A short history of Reel Kingdom

The company behind Reel Kingdom

Almost aggressively private. The studio names no founders, publishes no team page, and disclosures go no further than “industry veterans from the land-based and AWP world” — which the games themselves corroborate: the Bass loop is pub-machine psychology executed with digital polish. Corporate ownership is undisclosed; what’s verifiable is the arrangement, not the org chart — every game publishes exclusively through Pragmatic Play, reelkingdom.com cites Pragmatic Play (Gibraltar) Ltd in its own footer, and no independent distribution exists. You’ll find affiliate pages asserting a Big Time Gaming connection; we found no verifiable source for that beyond the licensed Megaways engine, and we don’t repeat it. Where the profits flow is, frankly, unknowable from public records — and we’d rather say so than invent a story.

Licensing & fairness: the honest picture

Reel Kingdom’s regulatory position is simple: it borrows Pragmatic Play’s, wholesale. UK supply runs under Arrise Solutions (Malta) Ltd — UKGC account 46683, active since 2017 — and Pragmatic Play (Gibraltar) Ltd, account 56015, with the games certified through the same testing pipeline as the rest of Pragmatic’s catalogue. For players this is a genuinely good deal: full UKGC protections, GAMSTOP integration, dispute routes, the lot. The transparency cost sits at the corporate layer, not the player layer — you know exactly which licence protects your bet, and almost nothing about who banks the result. Given how many studios manage the reverse, we’ll take this arrangement.

Which Reel Kingdom slot should you play?

Our verdict on Reel Kingdom

All Slot Providers score: 7/10 — the most commercially important boutique studio in UK slots, scored up for execution and availability, down for a one-trick catalogue and the quiet RTP erosion across its sequels.

Reel Kingdom suits anyone who wants the defining UK slot experience of the 2020s with full licensed protections. Look elsewhere if you value catalogue breadth — Pragmatic Play proper or Blueprint offer far more variety around the same fishing waters.

Every featured Reel Kingdom slot, ranked

RTPs are Pragmatic Play’s published maximum configurations, checked 12 July 2026; operators may run lower settings. Max wins are total-stake multipliers.

How this page was researched

Primary sources: the UK Gambling Commission public register (Arrise Solutions (Malta) Ltd, account 46683; Pragmatic Play (Gibraltar) Ltd, account 56015 — both checked 12 July 2026); reelkingdom.com’s own footer and games list; Pragmatic Play’s official game pages and release announcements for every RTP, ceiling and date. Where ownership or founder claims couldn’t be verified — and mostly they couldn’t — we’ve said so rather than repeated affiliate lore. Spotted an error? Tell us and we’ll fix it with a note.

Reel Kingdom FAQs

Who owns Reel Kingdom?

Publicly, nobody knows — the studio discloses no ownership, and no filing we could verify names its backers. What’s certain is the exclusive publishing arrangement with Pragmatic Play, whose Gibraltar entity the studio’s own website cites.

Are Reel Kingdom slots available at UK casinos?

Yes, everywhere — the games are supplied under Pragmatic Play’s UKGC-licensed entities (accounts 46683 and 56015), so any UK site carrying Pragmatic carries the Bass.

Is Big Bass Bonanza a Pragmatic Play game?

It’s a Reel Kingdom creation published exclusively through Pragmatic Play — Pragmatic handles distribution, certification and the platform; the design is Reel Kingdom’s.

What’s the best Big Bass game?

For maths, the 96.71% originals — Big Bass Bonanza, Bigger, or Splash. For ceilings, Amazon Xtreme and Day at the Races reach 10,000x at a lower 96.07%.

How does the Big Bass mechanic work?

Money symbols carry cash values; in free spins the fisherman wild collects every visible value; each fourth wild awards ten more spins and raises the multiplier — 2x, 3x, up to 10x depending on the title.

Did Reel Kingdom copy Fishin’ Frenzy?

The fisherman-collect concept came first in Blueprint’s Fishin’ Frenzy. Reel Kingdom added the retrigger-and-multiplier ladder — the refinement that turned a solid formula into the UK’s dominant franchise.

Why do newer Big Bass games pay less?

Every sequel since Hold & Spinner (2022) ships at 96.00–96.07% top configuration versus the originals’ 96.71% — traded for bigger advertised ceilings. Operators can also run lower settings on any title.

Is there a Big Time Gaming connection?

Only a licensed one: Big Bass Bonanza Megaways uses BTG’s Megaways engine under licence, as hundreds of slots do. Claims of a deeper corporate link circulate on affiliate sites without a verifiable source.