Reel Kingdom slots are the games behind the Big Bass series, starting with Big Bass Bonanza in December 2020. The studio releases its games through Pragmatic Play, so most lobbies show Pragmatic’s name. This page explains the fisherman collect mechanic in pounds, maps the Big Bass family by RTP and max win, and covers the studio’s other games.
Reel Kingdom made Big Bass Bonanza, released on 14 December 2020, and the Big Bass series grew from it.
Its games are distributed by Pragmatic Play, so casinos often list them under Pragmatic’s name.
The signature mechanic: in free spins, a fisherman wild collects the cash values shown on fish symbols.
Several titles run at a top RTP of 96.71%, but lower versions exist, so check the help screen.
Best known for
The Big Bass series
Distribution partner
Pragmatic Play
Breakthrough game
Big Bass Bonanza (14 December 2020)
Signature mechanic
Fisherman wild collects fish cash values
Common top RTP
96.71% on several titles
Who makes Reel Kingdom slots?
Reel Kingdom is a slot studio best known for one thing: fishing. Its breakthrough was Big Bass Bonanza, released on 14 December 2020, which turned into one of the most widely played slot series in the UK. The studio works with Pragmatic Play, which distributes its games to casinos. Reel Kingdom’s own website links straight to Pragmatic, and casino lobbies usually file its titles under Pragmatic Play.
That arrangement causes a lot of confusion. If you search a lobby for Reel Kingdom you may find nothing, while a search for Big Bass brings up a whole row of games. They are the same family; only the label differs. Reel Kingdom also makes non-fishing games, including Floating Dragon, Emerald King and Return of the Dead.
How the Reel Kingdom fisherman collect works
The idea that made the Big Bass games stand out is simple. During free spins, fish symbols land with cash values printed on them, shown as amounts tied to your stake. A fisherman symbol acts as a wild, and when one lands it collects the value of every fish on screen. It is a cash collect mechanic in its purest form.
Here is how one spin can pay, at a £1 stake:
Symbol on screen
Value shown
Running total
Fish 1
£2.00
£2.00
Fish 2
£5.00
£7.00
Fish 3
£0.50
£7.50
Fisherman wild lands
Collects all fish
£7.50 paid, plus any line wins
The values here are illustrative; the game’s paytable shows the real ones. In the original Big Bass Bonanza, collecting fishermen also moves you through levels that add extra free spins and raise a multiplier on what the fishermen collect. The exact steps vary between sequels, so read each game’s rules. Our guide to cash collect slots compares this mechanic across studios.
Fish without a fisherman pay nothing, and a fisherman with no fish collects nothing. Most free-spin rounds include plenty of both outcomes.
The Big Bass family: RTP, volatility and max win
The Big Bass games below are the Reel Kingdom series as they appear in UK lobbies, usually credited to Pragmatic Play. Figures are the verified ones we hold for each game.
The Big Bass series shows how a studio can keep the same theme while changing the maths underneath. The original caps at 2,100× stake; the 1000 versions reach 15,000× and 20,000×. At a 10p stake, that is the difference between a £210 ceiling and a £2,000 ceiling.
A higher ceiling is not a free upgrade. To pay more at the top, a game usually pays less often lower down, which is why most later titles are rated high or very high volatility. The max win is also a cap, not a target: very few players ever see it. If steady play matters more to you than the ceiling, Big Bass Vegas 1000, rated medium, or Big Bass Halloween, rated medium-high, sit at the gentler end of the family. Our page on what max win means goes further.
Reel Kingdom RTP versions in pounds
Several Big Bass games are published in more than one RTP version, and the casino chooses which to run. Bigger Bass Bonanza is the clearest case, at 96.71%, 95.67% or 94.62%. Here is what that means over 1,000 spins at 10p, which is £100 staked:
At 96.71%, the expected cost is about £3.29.
At 95.67%, it is about £4.33.
At 94.62%, it is about £5.38.
That is a gap of about £2 per £100 staked, for an identical-looking game. In one session, luck swamps it. Over a year of play, it doesn’t. Open the help screen at each casino you use; our guide to slot RTP versions explains how to spot which version you have.
Reel Kingdom slots beyond Big Bass
Reel Kingdom’s other games show the same taste for clear features on a 5×3 grid. Floating Dragon, released in 2021, moves the formula to an Asian dragon-boat theme and is listed at a 96.71% default RTP, high volatility and a 5,000× stake max win. Emerald King and Return of the Dead are also Reel Kingdom titles; we don’t hold verified figures for them, so check their help screens. Floating Dragon is a good fit for anyone browsing dragon slots.
UK rules on Big Bass and Reel Kingdom games
Many Big Bass games offer a feature buy in other markets, but feature buys are not offered to players in Great Britain, so in the UK you reach the free spins only by landing scatters. UK versions also follow the 2.5-second minimum spin, ban autoplay and turbo, and cap stakes at £5 a spin for players aged 25 and over or £2 for 18 to 24. Demo play is available only after age verification. Our bonus buy slots page explains why the buy option is missing.
Reel Kingdom slots: pros and cons
Advantages
A simple, satisfying collect mechanic that is easy to follow
Top RTPs of 96.71% on several titles
A wide spread of max wins, from 2,100× to 20,000×
Medium options within a mostly high-volatility series
Drawbacks
Lower RTP versions of several games exist
Most titles are high or very high volatility, with long gaps between features
Many sequels play similarly, so variety is limited
Games are often listed under Pragmatic Play, which can make them hard to find by studio name
Where to play Reel Kingdom slots, and an offer on Big Bass Bonanza
The closest partner match for this page is PlayOJO, whose welcome offer is built around Reel Kingdom’s best-known game. New UK customers (excluding Northern Ireland) aged 18+ who make a first deposit of at least £10 get 80 free spins on Big Bass Bonanza, each worth 10p, so £8 of spins in total, with no wagering: winnings are paid in cash. Terms apply. For context on how it compares, see our no wagering free spins page.
Open an account at PlayOJO as a new UK customer aged 18 or over (Northern Ireland is excluded).
Make a first deposit of at least £10, using a payment method the terms allow.
Find the 80 free spins, valued at 10p each, on Big Bass Bonanza.
Play the spins; any winnings are paid as cash with no wagering.
Set a deposit limit in your account settings before you carry on playing.
Ladbrokes and Coral also offer welcome free spins on selected games after a £10 slot spend; check which games are included in their terms.
PlayOJO’s welcome offer is 80 free spins on Big Bass Bonanza for new UK customers (excluding Northern Ireland) who deposit £10 or more: 10p spins, no wagering. 18+, terms apply.
Coral and Ladbrokes are both run by LC International Limited (Entain). If you already hold an account with one Entain brand, you may not be able to open a new account with another; check the terms before signing up.
Significant terms: 18+. New UK customers (excluding Northern Ireland). First deposit only. Minimum deposit £10. 80 free spins on Big Bass Bonanza, £0.10 each. No wagering requirements; winnings paid in cash. Cannot be used with any other offer. Only available to players who arrive through the designated offer link. Full T&Cs apply. GamCare.org.uk
Read the PlayOJO reviewLicence: Skill On Net Limited, UKGC account 39326. Offer checked 5 October 2026.
Significant terms: 18+. New customers only, from 14/11/25 until further notice. Certain deposit methods excluded. Deposit and spend £10+ on slots for 50 free spins a day during the first 10 days after first deposit and registration (max 500, £0.10 each, selected games, claim before 23:59 each day, valid 7 days). No wagering. Prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers deposits do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read the Ladbrokes reviewLicence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.
Significant terms: 18+. New players only. Offer runs 01/10/2026 to 01/02/2027. Deposit (certain types excluded) and bet £10+ on slot games to get 100 free spins (selected games, £0.10 each, 48 hrs to accept, valid 7 days). No wagering on free spin winnings. Deposits by Neteller, PayPal, Paysafe, Skrill, prepaid cards and certain debit cards do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read the Coral reviewLicence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.
18+. Gambling should be entertainment that costs money, not a way to make it. Set a deposit limit before you play: how to set limits. Free, confidential help: National Gambling Helpline 0808 8020 133.
Frequently asked questions
Is Big Bass Bonanza made by Reel Kingdom or Pragmatic Play?
Big Bass Bonanza was made by Reel Kingdom and is distributed by Pragmatic Play, which is why most casino lobbies show it under Pragmatic’s name. It was released on 14 December 2020 and became the start of the Big Bass series. The arrangement is common in the industry: a smaller studio builds the game and a larger supplier delivers it to casinos. For players it makes no practical difference beyond where you look in the provider filter. Read the full Big Bass Bonanza review for the game itself.
What is the best Big Bass slot?
There is no single best Big Bass slot, because the series is built to suit different budgets and tastes. The original Big Bass Bonanza has a 96.71% RTP and a 2,100× max win; Big Bass Splash keeps the 96.71% and lifts the cap to 5,000×; Big Bass Bonanza 1000 reaches 20,000× at 96.51%. If you want gentler swings, Big Bass Vegas 1000 is rated medium. Choose by volatility first, then RTP. Our fishing slots page compares the series with other fishing games.
How does the Big Bass fisherman feature work?
The fisherman feature works during free spins: fish symbols land showing cash values, and when a fisherman wild lands it collects the value of every fish on screen. At a £1 stake, fish worth £2, £5 and 50p would pay £7.50 to one fisherman. In the original game, collecting fishermen also unlocks extra spins and a rising multiplier on collected values. The details vary between sequels, so read the help screen. Our cash collect glossary entry explains the mechanic more generally.
What RTP do Reel Kingdom slots have?
Several Reel Kingdom slots run at a top RTP of 96.71%, including Big Bass Bonanza, Bigger Bass Bonanza, Big Bass Splash and Floating Dragon. Others sit a little lower, such as Big Bass Hold & Spinner at 96.07% and Big Bass Halloween at 96.04%. Some games also exist in lower versions, for example 95.67% and 94.62% for Bigger Bass Bonanza, and the casino decides which one it runs. Always check the help screen; our guide on how to find a slot’s RTP shows where.
Can you buy the bonus on Big Bass slots in the UK?
No, you can’t buy the bonus on Big Bass slots in the UK, because feature buys are not offered to players in Great Britain. In other markets several Big Bass games include a buy option, but the British versions only trigger free spins when enough scatter symbols land on the reels. That keeps the cost of reaching the feature tied to normal spins. Our page on whether you can buy bonuses on UK slots explains the background to the rule.
What is the highest max win in the Big Bass series?
The highest max win among the Big Bass games we hold verified figures for is 20,000 times the stake, on Big Bass Bonanza 1000. Big Bass Vegas 1000 reaches 15,000×, and Big Bass Hold & Spinner and Big Bass Amazon Xtreme reach 10,000×. At a 10p stake, 20,000× would be £2,000. Max wins are caps, not likely outcomes: very few sessions come anywhere near them, and higher caps usually come with higher volatility. Our high max win slots page explains the trade-off.
Does PlayOJO give free spins on Big Bass Bonanza?
Yes, PlayOJO’s welcome offer is 80 free spins on Big Bass Bonanza for new UK customers aged 18 or over, excluding Northern Ireland. You need to make a first deposit of at least £10. Each spin is worth 10p, so the package is worth £8 in spins, and there is no wagering: any winnings are paid as cash. Terms apply, so read them before depositing. Our PlayOJO review covers the site’s slot lobby and payment options in more detail.
What other games has Reel Kingdom made?
Beyond the Big Bass series, Reel Kingdom has made Floating Dragon, Emerald King and Return of the Dead. Floating Dragon, released in 2021, is listed at a 96.71% default RTP, high volatility and a 5,000× stake max win, and uses an Asian dragon-boat theme. We don’t hold verified figures for Emerald King or Return of the Dead, so check their help screens before playing. As with the fishing games, lobbies often credit them to Pragmatic Play. Read our Floating Dragon review for more.
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