A fisherman, a lake full of cash-carrying fish and a free spins round that gets more generous the longer it runs. Big Bass Splash is Reel Kingdom’s 2022 take on its own hit series, with random boosts before the bonus and a 10x multiplier for the luckiest anglers.
By Judy Herzog, updated
Play out a free spins round. Fishermen collect the fish on screen, and every fourth one lifts the multiplier.
10 free spins, £1 stake. Press Cast.
Fish values and odds here are invented to show how collecting works; the game uses its own.
All four casinos are licensed by the UK Gambling Commission, and Big Bass Splash is in each of their lobbies. Two of them go further: the free spins from William Hill Vegas and BetMGM are played on Big Bass Splash itself.
200 free spins
Spins on Big Bass Splash
100 free spins
£100 match bonus
200 free spins
Spins on Big Bass SplashOffers as of 5 November 2026. Wagering on UK bonuses has been capped at 10x since 19 January 2026. Check the full terms at each casino.
This is a five-reel, three-row slot with ten fixed lines that pay from left to right. In the base game it is a straightforward line slot with fish symbols carrying cash values; everything interesting happens once you reach free spins.
Compared with the original Big Bass Bonanza, Splash adds random modifiers before the bonus, extra end-of-spin features and a much bigger top multiplier of 10x.
The Hooked Bass scatter can land on any reel. Three give 10 free spins, four give 15 and five give 20. When a spin stops with exactly two, the game sometimes steps in: either the reels holding scatters slide down one position while the others spin again, or a hook pulls a reel upward to reveal a third scatter. It does not always work, but it means near misses are not always over.
In free spins the fisherman wild joins the reels. Every time he lands, he collects the cash value of every fish showing. Two fishermen on the same spin each collect the full amount.
Fishermen are also counted. Every fourth one you collect retriggers the round with 10 more spins and moves you up a level, which multiplies all future fish collections:
Three retriggers is the maximum, so a full round can reach level four. That final 10x is what makes long bonuses in Big Bass Splash so valuable compared with earlier games in the series.
Before free spins begin, the game can add between none and five modifiers: more fish on the reels, more fishermen, more dynamite, hooks and bazookas, a start at level two, or two extra spins (which also add two spins to every retrigger). During the round, three random features can rescue a spin:
Lands fish with cash values at random spots when a fisherman is on screen.
Pulls a reel up to bring a fisherman into view when there are fish but no wild.
Blasts the non-wild symbols and replaces them when a fisherman lands with no fish to collect.
Line wins as multiples of your total stake.
| Symbol | 2 | 3 | 4 | 5 |
|---|---|---|---|---|
| Fishing truck | 0.5x | 5x | 20x | 200x |
| Rod | – | 3x | 15x | 100x |
| Dragonfly | – | 2x | 10x | 50x |
| Tackle box | – | 2x | 10x | 50x |
| Fish | – | 1x | 5x | 20x |
| A, K | – | 0.2x | 2.5x | 10x |
| Q, J, 10 | – | 0.2x | 1x | 5x |
The default RTP is 96.71%, among the higher figures for a Pragmatic Play release. Two lower versions exist, 95.67% and 94.60%, and some British casinos use them, so open the game’s rules before you play. Volatility is high: independent testing finds a winning spin roughly one time in seven and free spins about once in 113 spins.
Wins are capped at 5,000x the stake. Reaching it needs a long bonus at the 10x level with big fish on screen, which is why the odds are put at around 1 in 3 million.
With free spins arriving roughly once every hundred-odd spins, a demo session of a few hundred spins should show you at least one or two bonuses. Watch how often the round reaches the second level; it is the clearest sign of how hard the game is to push to its big multipliers.
Big Bass Splash runs in mobile browsers on iOS and Android with no app needed. The reels fill the screen in landscape and the controls move to the side; in portrait the layout stacks, keeping the spin button within easy reach.
Big Bass Splash keeps the simple fishing formula and makes the bonus deeper. The pre-bonus boosts and the 10x top level give free spins real range, from a disappointing handful of fish to a round that keeps retriggering. The base game, though, is as plain as ever.
Reel Kingdom, a studio based in Cardiff, built it, and Pragmatic Play distributes it. It came out in June 2022 as the fifth game in the Big Bass series.
Land three, four or five Hooked Bass scatters for 10, 15 or 20 free spins. With exactly two scatters, the game may respin some reels or hook a reel upwards to try to reveal a third.
The fisherman is a wild that appears only in free spins. When he lands, he collects the cash value of every fish on the screen.
Every fourth fisherman you collect adds 10 more spins and raises the multiplier on fish values: 2x after the first retrigger, 3x after the second and 10x after the third.
Before the round starts, up to five random boosts can be added: more fish, more fishermen, more dynamite, hooks and bazookas, a start at level two, or two extra spins.
The default version returns 96.71%. Casinos can also run 95.67% or 94.60%, and the game’s information screen shows which you are playing.
5,000x your stake. Independent testing puts the odds of reaching it at about 1 in 3 million spins.
No. The 100x bonus buy exists in other countries but is switched off for British players, along with autoplay and quick spin.
Bonus-driven slots can go a long time between rewards. Set a budget and a time limit, use the tools in your casino account, and never increase stakes to chase free spins.
Worried about how much you play? Ring 0808 8020 133, the National Gambling Helpline, any hour of any day at no cost, or find advice from GamCare and BeGambleAware.
Play Big Bass Splash at a UK-licensed casino, starting with the free demo if you like.
Play Big Bass SplashWilliam Hill Vegas: 200 spinsOn Big Bass Splash when you stake £10. 18+, T&Cs apply.
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