Big Bass Bonanza vs Big Bass Splash is a rare comparison where the RTP, volatility rating, grid and line count are identical: 96.71%, high, 5×3 and ten lines. The real difference is the ceiling, 2,100x against 5,000x, plus the extra random modifiers Splash adds around the fisherman free spins.
Identical listed RTP (96.71%), so the long-run average cost per spin is the same on both.
Big Bass Splash's 5,000x cap is more than double Big Bass Bonanza's 2,100x.
Both pay mainly through free spins where a fisherman wild collects cash values on fish.
Splash adds random modifiers around the bonus; Bonanza keeps the simpler original design.
PlayOJO's 80 no-wagering free spins (18+, first deposit of £10+, terms apply) are played on Big Bass Bonanza.
RTP
96.71% (both)
Volatility
High (both)
Layout
5×3, 10 paylines (both)
Max win
2,100x vs 5,000x
Developer listed
Reel Kingdom vs Pragmatic Play
Big Bass Bonanza released
14 December 2020
Big Bass Bonanza vs Big Bass Splash: what actually differs
Big Bass Bonanza launched on 14 December 2020 and turned Reel Kingdom, working with distributor Pragmatic Play, into the studio behind the biggest fishing series in UK online slots. Big Bass Splash is one of the many follow-ups. If you line up the specification sheets, almost everything matches: the same return to player, the same volatility label, the same five-by-three grid and the same ten paylines.
So the useful question isn't which one pays more on average; on the listed figures they pay the same. It's how that average is distributed. Splash allows a much higher maximum and layers extra random events on top of the familiar bonus. Bonanza keeps the original, cleaner structure with a lower cap. The rest of this page works through what that means in pounds. The comparison hub lists other pairings.
Specifications of both fishing slots
Big Bass Bonanza vs Big Bass Splash specifications
Big Bass Bonanza
Big Bass Splash
Developer (as listed)
Reel Kingdom, distributed by Pragmatic Play
Pragmatic Play
RTP
96.71%
96.71%
House edge
3.29%
3.29%
Volatility
High
High
Grid and lines
5×3, 10 paylines
5×3, 10 paylines
Max win
2,100x stake
5,000x stake
Core bonus
Free spins with fisherman wild collecting fish values
Same core, plus random modifiers
Released
14 December 2020
Check the game's help screen
When two games share an RTP and a volatility label, the max win and the bonus design become the main ways to tell them apart. A higher cap with the same RTP means more of the return is reserved for rare, very large outcomes, which usually leaves a little less for everyday results.
How the fisherman collect works in both
Both games are built on a cash collect idea. Fish symbols carry cash values shown on them, expressed as multiples of your stake. Those values are only gathered by the fisherman, a wild symbol that appears in the free spins. When a fisherman lands on the same spin as fish, he collects every fish value on screen.
Worked example at a 50p stake
A free spin shows three fish carrying values of 2x, 5x and 10x the stake, plus one fisherman.
At 50p, those values are £1, £2.50 and £5.
The fisherman collects all three: £8.50 is added to the round total.
Any line wins from the same spin are paid as normal, with the fisherman substituting as a wild.
The fisherman also counts towards the next retrigger level, explained below.
In Big Bass Bonanza, every fourth fisherman collected retriggers the feature with ten more spins and raises the multiplier applied to later collections: 2x, then 3x, then 10x. That climb is where the 2,100x ceiling is reached. Splash keeps the same collect-and-level idea, so the example above works the same way there.
Spin counts, fish values and level details can differ between versions. The help screen in your casino describes the exact rules for the game in front of you.
What Big Bass Splash adds to the formula
Splash's main change is a set of random features triggered around the free spins. The game's rules describe modifiers that can, for example, add extra fishermen or fish to a round, which raises the potential of that particular bonus. They're random: you can't choose them or make them more likely, and their effect is already built into the 96.71% RTP.
These modifiers, together with the higher cap, are why Splash can produce larger outcomes than Bonanza. They don't make it cheaper to play. Because both games return the same average, a larger share of Splash's return sits in its strongest rounds, so typical rounds can feel thinner by comparison.
Big Bass Bonanza vs Big Bass Splash: cost per 100 spins
With identical RTPs, the long-run average cost is the same on both games. The table below shows it per 100 spins. These are house edge averages; an actual session on a high-volatility game will usually finish well away from them, in either direction.
Average cost of 100 spins at 96.71% RTP (both games)
Stake
Total staked
Average cost (both games)
10p
£10
32.9p
20p
£20
65.8p
50p
£50
£1.65
£1
£100
£3.29
£2
£200
£6.58
£5
£500
£16.45
A useful consequence: if you are choosing between the two on value, there is no difference to find. Choose on the style of play you prefer, and remember that casinos can run lower RTP settings than the listed figure. The game's information screen shows the one in use; see where to find RTP on UK slots.
Max win in pounds at UK stake limits
UK players aged 25 and over can stake up to £5 per spin on online slots, and players aged 18 to 24 up to £2, under the limits described in the Gambling Commission's stake limit guidance (opens in a new tab). Here is what each game's cap means at common stakes.
Max win at common UK stakes
Stake
Big Bass Bonanza (2,100x)
Big Bass Splash (5,000x)
10p
£210
£500
25p
£525
£1,250
£1
£2,100
£5,000
£2 (18–24 limit)
£4,200
£10,000
£5 (25+ limit)
£10,500
£25,000
Both caps are reached only at the top level of a free spins round with high-value fish, so they are very rare. The difference in the table is about how high the variance reaches, not how much either game tends to return.
Big Bass Bonanza and PlayOJO's 80 free spins
Big Bass Bonanza is the game PlayOJO's welcome offer is played on: 80 free spins at 10p each for new UK customers (excluding Northern Ireland) aged 18+, after a first deposit of at least £10, with no wagering, so winnings are paid as cash. Terms apply, and the offer can only be claimed through the designated link.
The spins have a face value of 80 × 10p = £8. At 96.71% RTP the long-run average return on £8 of spins is about £7.74, but 80 spins on a high-volatility game is a very small sample. Most sets of 80 spins won't trigger the free spins at all, some will return a few pounds and a few will return much more. It is a way to try the game, not a source of income. For more on this type of offer, see no-wagering free spins and our Big Bass Bonanza free spins page.
Where both sit in the Big Bass series
The Big Bass name now covers a long list of slots, each changing one or two things about the original. A few that are useful for comparison:
Our fishing slots guide explains how the genre grew, including Blueprint's Fishin' Frenzy, which used a fisherman collect feature too.
UK design rules on both Big Bass slots
At UK-licensed casinos both games follow the online game design rules in force since 31 October 2021: no autoplay, a minimum of 2.5 seconds per spin, no turbo or slam-stop, no win celebrations for returns equal to or below the stake, and a constant display of balance and net position. Pragmatic Play (opens in a new tab) distributes both games, and its international versions often list a bonus buy; slots supplied to Great Britain come without one, so the free spins can only be reached by landing scatters. See UK slot game design rules.
At 2.5 seconds a spin, 100 spins take at least about four minutes. At 50p, that is £50 staked in a few minutes, which shows why a budget and a time limit are worth setting before you start.
Fishing slot myths
"Fish without a fisherman means he is due." Each spin is independent. Fish landing without a collector is part of the design and says nothing about the next spin.
"Splash pays more because the max win is bigger." The average return is the same 96.71%; the bigger cap is balanced elsewhere in the maths.
"Raising the stake after a dry run makes the bonus more likely." Stake size doesn't change trigger chances; it only scales wins and losses.
"A big win means the game has gone cold." No slot remembers its past results.
PlayOJO's 80 no-wagering free spins on Big Bass Bonanza are listed first because they match this page most closely (18+, new UK customers excluding Northern Ireland, first deposit of £10 or more, 10p spins, terms apply). Coral offers 100 free spins at 10p each on selected games after you bet £10 on slots, with no wagering on the winnings; Ladbrokes gives up to 500 free spins over ten days after you play £10 on slots. Neither promises Big Bass Splash, so search the casino's lobby; game availability changes. All offers are 18+ and terms apply.
Set a deposit limit first, and remember help is free: the National Gambling Helpline on 0808 8020 133 is run by GamCare (opens in a new tab) and open around the clock.
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 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.
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.
18+. Gambling should be entertainment that costs money, not a way to make it. Decide a budget before you play: plan a slot budget. Free, confidential help: National Gambling Helpline 0808 8020 133.
Frequently asked questions
Is Big Bass Splash better than Big Bass Bonanza?
Neither is better on value, because both list a 96.71% RTP, so the long-run average cost per spin is identical. Big Bass Splash has the higher ceiling at 5,000x against 2,100x and adds random modifiers around the free spins. Big Bass Bonanza keeps the simpler original design. Choose Splash if you prefer more extreme possible outcomes and Bonanza if you prefer the cleaner feature. Our Big Bass Splash page covers the game in full.
Do Big Bass Bonanza and Big Bass Splash have the same RTP?
Yes, both are listed at 96.71%, which works out at an average cost of about £3.29 for every £100 staked over the long run. Casinos can offer lower RTP settings of some Pragmatic Play and Reel Kingdom games, so the figure on your screen may differ. Open the game's information screen to see it. Our guide on how to find a slot's RTP explains where the number is printed.
What is the max win on Big Bass Bonanza?
Big Bass Bonanza caps wins at 2,100 times the stake. That is £210 at 10p, £2,100 at £1, £4,200 at the £2 limit for 18 to 24-year-olds and £10,500 at the £5 limit for over-25s. The cap is reached only at the top multiplier level of the free spins with valuable fish, which is very rare. Big Bass Splash's cap is 5,000x. See our max win caps explainer.
How does the fisherman work in Big Bass Bonanza?
The fisherman is a wild that appears during free spins and collects the cash values shown on every fish symbol on screen. In Big Bass Bonanza, every fourth fisherman collected retriggers the round with ten more spins and raises the multiplier on later collections to 2x, then 3x, then 10x. He also substitutes for ordinary symbols on lines. Our cash collect feature page explains this mechanic across different slots.
Can I play Big Bass Bonanza with free spins?
Yes, PlayOJO's welcome offer gives new UK customers aged 18+ (excluding Northern Ireland) 80 free spins on Big Bass Bonanza after a first deposit of at least £10. The spins are worth 10p each and have no wagering, so winnings are paid as cash. The offer can't be combined with others and must be claimed through the designated link; terms apply. Our 80 free spins page explains this kind of offer.
Which Big Bass slot has the biggest max win?
Of these two, Big Bass Splash's 5,000x is the bigger cap, more than double Big Bass Bonanza's 2,100x. Other games in the series have their own caps; Bigger Bass Bonanza, for example, lists 4,000x. A higher cap doesn't mean a higher average return, since both games here share a 96.71% RTP. Our question page what slot has the biggest max win? compares caps across many games.
Is there a bonus buy on Big Bass Splash in the UK?
No, the versions of Big Bass Splash at UK-licensed casinos are supplied without a bonus buy, so the free spins start only when enough scatter symbols land. International versions of Pragmatic Play games often include one, which is why you may see it in videos filmed outside Great Britain. Other UK design rules also apply, such as no autoplay and a minimum 2.5-second spin. Read more on bonus buy in the UK.
How much does 100 spins on Big Bass Bonanza cost?
At 10p a spin, 100 spins is £10 staked and the long-run average cost at 96.71% RTP is about 33p; at £1 a spin it is about £3.29 from £100 staked. Big Bass Splash costs the same on average. Real sessions vary far more than that, because most of the return comes from free spins that may not land in 100 spins. Try our slot cost calculator for other stakes and spin counts.
Are Big Bass slots good for small budgets?
They can be played at low stakes, but both are high volatility, so a small budget can run out before any free spins arrive. Playing at 10p gives 100 spins for £10, which is a reasonable sample but no assurance of a bonus. A lower-volatility game spreads small wins more evenly. Set a deposit limit and accept the budget as the cost of playing. Our bankroll guide shows how to size stakes against a budget.
Who makes Big Bass Bonanza and Big Bass Splash?
Big Bass Bonanza is made by Reel Kingdom and distributed by Pragmatic Play, which is how it reaches most casinos. Big Bass Splash is listed under Pragmatic Play. Reel Kingdom's breakthrough was Big Bass Bonanza in December 2020, and its signature mechanic is the fisherman wild collecting fish cash values. Pragmatic Play, founded in 2015, is licensed by the Gambling Commission. Read more on our Reel Kingdom provider page.
Gambling can be addictive. Free, confidential help is available 24 hours a day from the National Gambling Helpline on 0808 8020 133. Visit GamCare.org.uk and GamCare, or block yourself from all UK-licensed gambling sites with GAMSTOP.
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