Big Bass Bonanza is the fishing slot that started a whole series, and the game UK casinos use more than almost any other for free spins. This review explains how the Big Bass Bonanza slot pays, what its RTP and volatility mean for your budget, and where to find free spins on it.
Big Bass Bonanza is a 5×3, 10-line fishing slot from Pragmatic Play and Reel Kingdom, released in 2020, with a 96.71% RTP, high volatility and a 2,100× max win. Three to five scatters give 10, 15 or 20 free spins, where fisherman wilds collect the cash values on fish symbols and every fourth fisherman adds 10 spins and a 2×, 3× and then 10× multiplier. 31 UK casinos give free spins on it, 12 with no wagering; the best is 80 Free Spins, no wagering at PlayOJO. It suits players who like one clear bonus round and a modest top win.
2020 Big Bass BonanzaPragmatic Play
| Provider | Pragmatic Play (Reel Kingdom) |
|---|---|
| Released | 2020 |
| RTP | 96.71% |
| Volatility | High |
| Max win | 2,100× |
| Layout | 5×3, 10 paylines |
| Stake in the UK | Up to £5 a spin (£2 if you are 18 to 24) |
| Bonus buy | Not available in Great Britain |
| Free spins offers | 31 at UK casinos, 12 with no wagering |
Facts from the studio and our slot catalogue. RTP is the headline figure; UK casinos can run lower versions, shown in the game's info screen.
Set a budget and a stake. We work out the average cost of play at the game's 96.71% RTP. Real sessions swing well above and below this average.
The Big Bass Bonanza slot is a 5×3 game with 10 fixed paylines. Wins pay from left to right, and all ten lines are always in play, so the only choice you make is the stake. The Big Bass Bonanza paytable is short: fishing kit, a tackle box, a rod, a dragonfly lure and a float, plus the usual card ranks. Fish symbols carry a cash value printed on them, and in the base game they pay only as ordinary symbols.
That simplicity is the point. There are no cascades, no ways-to-win grid and no side games. Almost everything interesting happens in one feature, the free spins round, and the base game mostly keeps you going until you reach it. The game was made by Reel Kingdom and is distributed by Pragmatic Play, which is why you find it in the Pragmatic section of most UK casino lobbies.
Three, four or five scatters start Big Bass Bonanza free spins, with 10, 15 or 20 spins respectively. During the round, the fisherman is a wild that does two jobs. It substitutes for other symbols, and every time it lands it collects the cash values of all the fish on screen at that moment. Pragmatic Play says fish values can reach 2,000× the stake.
The feature builds through retriggers. Each fisherman you land is counted, and every fourth one adds 10 more free spins and raises the multiplier on collected fish values: 2× after the first retrigger, 3× after the second and 10× after the third. A good round collects fishermen steadily so the multiplier climbs while fish keep landing. A poor round lands fish but few fishermen, and pays very little. That gap between rounds is the main reason the game is rated high volatility.
The Big Bass Bonanza RTP is 96.71%, the figure Pragmatic Play publishes for the game. That is above the average of the slots in our catalogue, which is about 96.1%. Over a very large number of spins, the game pays back about £96.71 for every £100 staked. On £1,000 of total stakes, the average cost would be about £33.
Two cautions apply. RTP is a long-run average, so one session can end far above or below it. And casinos can run lower RTP versions of many Pragmatic Play games; the figure your casino uses is in the game rules, which you reach from the menu inside the slot. Check it before you play, especially if you plan to play for a while. Our budget calculator above shows the average cost at 96.71% for any stake.
The Big Bass Bonanza max win is 2,100× your stake, so £2,100 on a £1 spin or £10,500 at the £5 UK maximum. That ceiling is modest next to newer releases that advertise 20,000× or more, including later games in the same series. It keeps results in a narrower range than many high-volatility slots, but the game is still high volatility: free spins can take a long time to arrive, and some rounds end with only a few small fish collected.
In practice, most of the value sits in the feature, and reaching the maximum needs the 10× multiplier with large fish values on screen. Treat the 2,100× figure as the top of the range, not a target.
Big Bass Bonanza free play means the demo version, which uses play credits instead of money. You can play a Big Bass Bonanza demo at UK licensed casinos, but only after you register and pass the age check: UK rules do not allow free-play slots without age verification. A demo shows you how often scatters land and how the retrigger ladder works, using play credits. It cannot tell you how the real-money version will pay in your session, because every spin is random.
In Great Britain the stake is capped at £5 a spin for players aged 25 and over and £2 for players aged 18 to 24. Each spin lasts at least 2.5 seconds, and autoplay, turbo spins and bonus buy are not available. Big Bass Bonanza never had a bonus buy in its original version, so UK players get the same game as elsewhere, played one spin at a time. The game screen also has to show your net position for the session.
Big Bass Bonanza started a long run of sequels from Reel Kingdom and Pragmatic Play. Big Bass Splash keeps the 10-line layout and the fisherman collector but raises the max win to 5,000× and adds up to five random modifiers before the free spins. Big Bass Bonanza 1000 lifts the ceiling to 20,000×, and Big Bass Amazon Xtreme lets you choose modifiers and reaches 10,000×. All of them share the same 96% to 97% RTP range and high volatility. If you like the original's simplicity, start here; if you want a bigger top win, the newer versions trade some of that simplicity for it.
Big Bass Bonanza is one of the two most common games for UK free spins offers. 31 of the offers in our database name it, and 12 of those pay the winnings with no wagering, including PlayOJO, LiveScore Bet, Dream Jackpot. The cards below show the best of them. Big Bass Bonanza free spins no deposit offers are rare: nearly all need a £10 deposit and often a £10 stake on slots. Before you claim, check the spin value, which is usually 10p, any cap on winnings and how long the spins last; some offers give only a day or two. Our Big Bass free spins page lists every offer on the series.
Big Bass Bonanza is worth playing if you want a straightforward slot with one feature you can follow. The 96.71% RTP is high for a mainstream game, the rules are easy, and free spins offers on it are everywhere in the UK. The downsides are the long waits for the feature and a top win that will feel small if you are used to newer releases. It is a good first slot for free spins offers, and a fair choice for longer sessions at small stakes, as long as you accept that most rounds will be quiet.
There is no way to make sure you win on Big Bass Bonanza: every spin is random and the RTP is fixed by the game version. No method changes the odds, but a few habits make your money last. Pick a stake that gives you enough spins to reach the feature: on a £50 budget, 20p to 50p a spin is more sensible than £2. Use a free spins offer where you can, because spins on this game are cheap to give away and common. Check the RTP version in the game rules. And set a deposit limit before you start; the National Gambling Helpline is free on 0808 8020 133 if you ever need it.
These UK licensed casinos give free spins on Big Bass Bonanza to new customers. The best offers come first: no wagering before wagering, then by casino score.
18+ T&Cs. New customers. Deposit £10 to get 80 spins worth 10p each on Big Bass Bonanza. Winnings paid as cash, no wagering.
18+ T&Cs. New customers. Deposit £10 and wager £10 on slots within 24 hours of registering for 100 spins on Big Bass Bonanza. Spins worth 10p, valid 72 hours. Winnings paid as cash.
18+ T&Cs. New customers. Deposit £20+ within 72 hours of registering and wager £20 on Big Bass Bonanza for 20 spins. No wagering; winnings paid as cash. Spins valid for 24 hours. Skrill and Neteller deposits do not qualify.
See all 31 offers with Big Bass Bonanza spins →
Big Bass Bonanza next to its own sequel, the older fishing slot it borrowed from, and a popular high-volatility alternative.
| Big Bass Bonanza | Big Bass Splash | Fishin' Frenzy | Book of Dead | |
|---|---|---|---|---|
| Provider | Pragmatic Play | Pragmatic Play | Blueprint Gaming | Play'n GO |
| Released | 2020 | Not stated | 2014 | 2016 |
| RTP | 96.71% | 96.71% | 96.12% | 96.21% |
| Volatility | High | High | High | High |
| Max win | 2,100× | 5,000× | 5,000× | 5,000× |
| Layout | 5×3, 10 paylines | 5×3, 10 lines | 5×3, 10 paylines | 5×3, 10 lines |
| Free spins offers | 31 | 52 Best | 2 | 19 |
| Best offer | 80 Free Spins, no wagering PlayOJO | 50 Free Spins, no wagering LeoVegas | £30 Bonus + 50 Free Spins BetVictor | 200 Free Spins on Book of Dead Kwiff |
96.71%, according to Pragmatic Play. Casinos can run lower versions, so check the game rules at your casino.
2,100× your stake, which is £10,500 at the £5 UK maximum stake.
Land 3, 4 or 5 scatters for 10, 15 or 20 free spins.
Yes. Most of the value comes from the free spins round, which can take a while to arrive.
Reel Kingdom made the game, and Pragmatic Play distributes it.
Yes. 31 UK casino offers in our database give spins on it, 12 with no wagering.
