Reel Kingdom casino games

Reel Kingdom casino games are the slots behind the Big Bass series, released to casinos through its distribution partner Pragmatic Play. Its breakthrough, Big Bass Bonanza, launched on 14 December 2020 and introduced the fisherman wild that collects cash values from fish symbols. This page covers the studio's games, RTP versions, UK rules and the one partner offer built on a Reel Kingdom title, checked 5 October 2026.

Key takeaways

  • Reel Kingdom makes the Big Bass series and distributes its games through Pragmatic Play.
  • Big Bass Bonanza (14 December 2020) lists a 96.71% RTP and a 2,100x max win in our slot data.
  • Several Reel Kingdom titles come in 96.71%, 95.67% and 94.62% versions, so check the help screen.
  • PlayOJO's welcome offer gives 80 free spins on Big Bass Bonanza (10p each, £10 minimum first deposit, no wagering; 18+, terms apply).
  • In the UK, stakes are capped at £5 (25+) or £2 (18–24), with no autoplay and no feature buy.
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

Reel Kingdom casino games: the studio behind Big Bass

If you've seen a cartoon angler hauling fish across a slot screen, you've seen Reel Kingdom's work. The studio is best known for the Big Bass series, which grew from a single December 2020 release into one of the most recognisable slot franchises in UK lobbies. Its other titles include Return of the Dead, Emerald King and Floating Dragon.

Reel Kingdom doesn't sell to casinos directly. Its games are distributed by Pragmatic Play, which is why many lobbies and review sites list them under Pragmatic Play's name. That split causes plenty of confusion, so the next section untangles it before we get into the games themselves.

Pragmatic Play is Reel Kingdom's distribution partner. In practice, Reel Kingdom develops the games and Pragmatic Play delivers them to casinos through its own platform and commercial deals, often with Pragmatic branding in the lobby. Pragmatic Play's website (opens in a new tab) lists the Big Bass titles alongside its in-house games.

How a Reel Kingdom game reaches you
StageWhoWhat it means for you
Design and mathsReel KingdomSets the features, paytable and RTP versions
DistributionPragmatic PlayWhy the game may be filed under Pragmatic Play in a lobby
OperationYour UK-licensed casinoChooses the RTP version and holds your money
RegulationGambling CommissionSets the technical standards the GB version must meet

Because of this arrangement, later Big Bass sequels are often credited to Pragmatic Play, and our own slot data credits several of them that way. On this page we only attribute games to Reel Kingdom where our studio facts confirm it.

The fisherman collect mechanic, step by step

The mechanic that made Big Bass Bonanza famous is simple to follow, which is a big part of its appeal. The exact numbers vary between titles, so treat this as the general pattern and read the help screen for specifics.

  1. In the base game you spin a five-reel grid looking for line wins and scatter symbols.
  2. Landing enough scatters triggers a round of free spins.
  3. During the free spins, fish symbols land showing cash values, expressed relative to your stake.
  4. When the fisherman wild lands at the same time, it collects the value of every fish on screen.
  5. Collecting a set number of fishermen adds more free spins and raises the multiplier applied to later collections.
  6. The round ends when the spins run out, and the total is added to your balance.

The design concentrates value in the feature. Base-game spins mostly return small line wins or nothing, so how a session goes depends heavily on whether, and how well, the free spins land. That's typical of high-volatility slots, and every Reel Kingdom title in our data is rated high.

Reel Kingdom slots and their published figures

The table shows Reel Kingdom titles for which our slot data holds figures. Return of the Dead and Emerald King are also Reel Kingdom games, but we don't have verified figures for them.

Reel Kingdom slots: RTP, layout and max win
SlotRTPVolatilityLayout and linesMax winReleased
Big Bass Bonanza96.71%High5 × 3, 10 paylines2,100x14 December 2020
Bigger Bass Bonanza96.71% (95.67% and 94.62% versions exist)High5 × 4, 12 fixed paylines4,000x2021
Floating Dragon96.71% (default)High5 × 3, 10 fixed paylines5,000x2021

The repeated 96.71% is the studio's common top RTP. It's the best version, not the only one, and that difference matters more than most players realise.

96.71% or 94.62%: why the RTP version matters

Many slots are supplied in several RTP versions, and the casino picks one. The game looks identical either way; only the long-run return changes. Here's what the three published Bigger Bass Bonanza versions mean on £100 of total stakes, for example 500 spins at 20p.

Long-run cost of £100 staked by RTP version
RTP versionExpected returnExpected cost
96.71%£96.71£3.29
95.67%£95.67£4.33
94.62%£94.62£5.38

The gap between the best and worst version is about £2.09 per £100 staked, a rise of roughly 64% in the long-run cost. Over a single session the luck of the draw swamps that difference, but across months of play it adds up. Our guide to checking slot RTP shows where the figure appears; UK casinos must make it available in the game.

Big Bass max wins in pounds at UK stakes

Reel Kingdom's max wins are modest next to some studios' six-figure multipliers, which reflects a design aimed at frequent features rather than one-in-millions outcomes. Converted to pounds, the max win depends entirely on your stake:

  • Big Bass Bonanza, 2,100x: £210 at 10p, £4,200 at £2, £10,500 at £5.
  • Bigger Bass Bonanza, 4,000x: £400 at 10p, £8,000 at £2, £20,000 at £5.
  • Floating Dragon, 5,000x: £500 at 10p, £10,000 at £2, £25,000 at £5.

These are ceilings, rarely reached. The £2 figures are the most anyone aged 18–24 could stake under the £2 slot stake limit, in force since 21 May 2025.

PlayOJO's 80 free spins on Big Bass Bonanza

Of our five partner offers, only one is built on a Reel Kingdom game. PlayOJO gives new UK customers (excluding Northern Ireland) 80 free spins on Big Bass Bonanza when they make a first deposit of at least £10. The spins are worth 10p each, so the package is £8 of play. There's no wagering, so anything the spins win is paid as cash. It's 18+, only available through the designated offer link and can't be combined with other offers.

What's it worth? At Big Bass Bonanza's 96.71% RTP, £8 of spins has a long-run expected return of about £7.74, but 80 spins is a tiny sample, so the real result could be a few pence or several pounds. Treat it as a way to try the game, not a source of income. Our pages on 80 free spins and Big Bass Bonanza free spins compare it with similar deals.

  1. Use PlayOJO's designated offer link; the spins aren't available through other routes.
  2. Register, confirm you live in the UK outside Northern Ireland and complete age and identity checks.
  3. Set the financial limit you'll be prompted for, a requirement since 31 October 2025.
  4. Make a first deposit of at least £10.
  5. Open Big Bass Bonanza; the 80 spins play at 10p each.
  6. Any winnings go to your cash balance with no wagering attached.

You can confirm PlayOJO's operator, Skill On Net Limited, on its Gambling Commission register entry (account 39326) (opens in a new tab).

How UK rules shape Reel Kingdom games

Big Bass games sold in other markets sometimes include options that the GB versions don't. At UK-licensed casinos you won't see a feature buy, so free spins come only from scatters landing in normal play; our bonus buy page explains the background. The Gambling Commission's online slots stake limit guidance (opens in a new tab) caps each game cycle at £5 for players aged 25 and over, from 9 April 2025, and £2 for 18 to 24-year-olds, from 21 May 2025. Since 31 October 2021, slots have had no autoplay and a minimum of 2.5 seconds per spin.

Finding Reel Kingdom casino games in a UK lobby

Because the games travel under Pragmatic Play's distribution, the quickest route is usually to search the title. Try "Big Bass" in the search bar to see every version a casino carries, then check which studio the information screen credits. Some lobbies have a Reel Kingdom filter; many fold it into Pragmatic Play. Our casino lobby guide explains filters and search in more detail, and the online slots page covers slot lobbies more widely.

Playing the Big Bass games within a budget

Big Bass games are quick to learn and easy to keep playing, which is exactly why a plan helps. Decide a session amount, choose a stake that gives you enough spins, and stop when it's spent. Deposit limits can be lowered instantly at any UK casino, and the free National Gambling Helpline, 0808 8020 133, is open around the clock.

Where to play Reel Kingdom casino games

PlayOJO's offer, described above, is the only partner promotion tied to a Reel Kingdom title. Coral and Ladbrokes run broader slot offers on selected games, which may or may not include Big Bass titles. All three were checked on 5 October 2026; 18+ and terms apply.

  • Coral: new players deposit (some methods excluded) and bet £10 or more on slots for 100 free spins at 10p each on selected games, which is £10 of spins. No wagering on winnings; 48 hours to accept and 7 days to use. PayPal, Skrill, Neteller, Paysafe, prepaid cards and certain debit cards don't qualify. Runs 1 October 2026 to 1 February 2027.
  • Ladbrokes: new customers deposit and spend £10 or more on slots for 50 free spins a day for 10 days, up to 500 at 10p each (£50 of spins) on selected games. No wagering; claim by 23:59 daily; 7 days to use. Deposits made with prepaid cards, PayPal, Paysafe, Neteller, Skrill or Moneybookers won't count.

Coral and Ladbrokes share an operator, so check the terms before joining both.

Ad 18+ only. We may earn commission from these links. Advertiser disclosure

PlayOJO is the direct match: its 80 free spins are on Big Bass Bonanza, a Reel Kingdom game. Coral and Ladbrokes give 10p spins on selected games, which may not include Reel Kingdom titles. 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.

PlayOJO logo

PlayOJO 4.2 out of 5

80 free spins, no wagering

No wageringFree spins

Claim at PlayOJO (advert, opens in a new tab)18+. New customers. T&Cs apply.
Wagering
None
Minimum
£10
Time limit
See offer terms
Worked value
80 spins at £0.10 (£8 in spins)

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 review Licence: Skill On Net Limited, UKGC account 39326. Offer checked 5 October 2026.

Coral Casino logo

Coral Casino 4.3 out of 5

Bet £10 on slots, get 100 free spins

No wageringFree spins

Claim at Coral (advert, opens in a new tab)18+. New customers. T&Cs apply.
Wagering
None
Minimum
£10
Time limit
48 hours to accept, then 7 days
Worked value
100 spins at £0.10 (£10 in spins)

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 review Licence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.

Ladbrokes Casino logo

Ladbrokes Casino 4.2 out of 5

Play £10 on slots, get up to 500 free spins

No wageringFree spins

Wagering
None
Minimum
£10
Time limit
Claim daily for 10 days; each batch valid 7 days
Worked value
Up to 500 spins at £0.10 (up to £50 in spins)

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 review Licence: 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 deposit 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 is a Reel Kingdom game distributed by Pragmatic Play. Reel Kingdom developed it and released it on 14 December 2020, while Pragmatic Play handles getting it into casinos, which is why many lobbies list it under Pragmatic Play. Both names can appear in the game or the lobby, depending on the casino. What matters more for you is the RTP version the casino has chosen, shown in the game's help screen. See our Big Bass Bonanza free spins page for related offers.

What is the RTP of Big Bass Bonanza?

Our slot data lists Big Bass Bonanza at 96.71%, which is also the most common top RTP across Reel Kingdom's titles. Some Reel Kingdom slots, such as Bigger Bass Bonanza, are also supplied in 95.67% and 94.62% versions, and a casino may choose any version it has been supplied. The figure that applies to you is the one in the game's information screen at your casino. At 96.71%, the long-run cost is about £3.29 per £100 staked. Our RTP explainer covers what the number means.

What does the fisherman do in Big Bass games?

The fisherman is a wild symbol that, during free spins, collects the cash values shown on any fish symbols on screen at the same time. Collecting a set number of fishermen usually adds more free spins and raises a multiplier on later collections, though the exact steps vary by title. In the base game the fish values aren't collected, so most of the game's value sits in the feature. That's why results swing so much. Our slot bonus rounds guide explains features more generally.

Which casino offers free spins on Big Bass Bonanza?

Among our partners, PlayOJO offers 80 free spins on Big Bass Bonanza to new UK customers outside Northern Ireland. You need to make a first deposit of at least £10 via the designated offer link; the spins are 10p each, and winnings are paid as cash with no wagering. The offer is 18+ and can't be combined with others; it was checked on 5 October 2026. Our PlayOJO page has more on the casino, and the no wagering free spins page compares similar offers.

What is the max win on Reel Kingdom slots?

In our slot data, Big Bass Bonanza lists a 2,100x max win, Bigger Bass Bonanza 4,000x and Floating Dragon 5,000x. At a 10p stake those caps are worth £210, £400 and £500. They're ceilings for a single round and are rarely reached. Max wins at Reel Kingdom are lower than at some extreme-volatility studios because the design puts more weight on regular features. Casinos may also set their own payout caps, so read the terms. Our max win guide explains more.

Are there other Reel Kingdom games besides Big Bass?

Yes. As well as the Big Bass series, Reel Kingdom's titles include Return of the Dead, Emerald King and Floating Dragon. Floating Dragon lists a 96.71% default RTP, high volatility and a 5,000x max win in our slot data; we don't hold verified figures for the other two. Many later Big Bass sequels are credited to Pragmatic Play in lobbies and databases, so check the game's information screen to see which studio is named. Our providers hub lists other studios.

Can I buy the free spins feature on Big Bass Bonanza in the UK?

No. Versions of Big Bass games supplied to UK-licensed casinos don't include a feature buy, so you can only reach the free spins by landing scatters in normal play. Versions sold elsewhere sometimes do, which is why some videos and reviews mention it. No official Commission rule or date confirms a formal ban, so we describe it as how games are supplied to Great Britain. Our bonus buy page explains what is confirmed.

What's the most I can stake on Big Bass games?

At UK-licensed casinos the most you can stake on any online slot, including Big Bass games, is £5 per spin if you're 25 or over, a limit in force since 9 April 2025. If you're aged 18 to 24, the cap is £2 per spin, since 21 May 2025. The limit applies to the whole game cycle, so any extra stake within a cycle counts towards it. The game's own minimum and maximum may be lower. Our £5 slot stake limit page explains the rule.

Are the 80 PlayOJO spins worth claiming?

They can be a reasonable way to try Big Bass Bonanza, as long as you'd be happy with the £10 deposit as spending money anyway. The 80 spins at 10p are worth £8 of play, and at a 96.71% RTP the long-run expected return is roughly £7.74, though one batch of 80 spins can land far above or below that. No wagering means winnings are cash. It's 18+ and terms apply. Read are free spins worth it for a wider view.

Why do Big Bass slots feel so streaky?

Because most of their value is concentrated in the free spins feature, where the fisherman collects fish values. The base game mostly produces small line wins or nothing, so long runs without the feature are normal and don't mean one is due. Every Reel Kingdom title in our slot data is rated high volatility. That suits short, budgeted sessions better than chasing a feature. Our article on high or low volatility explains the trade-off.

Sources

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