Big Bass Bonanza is the fishing slot that launched a whole family of sequels. Reel Kingdom built it, Pragmatic Play publishes it, and it arrived in December 2020 with a deliberately plain setup: five reels, three rows and ten fixed paylines. There is no cascade, no cluster mechanic and no jackpot. Almost everything interesting happens inside one free spins round, where a fisherman wild reels in the cash values attached to fish on the screen.
This review covers how the game plays, which RTP figure to trust, what the maximum win really means in pounds, how often the bonus is likely to land, and whether the slot is still worth your time now that the series has grown so large. We checked the provider’s own rules screen and RTP statement first, then compared them with independent reviews.
Big Bass Bonanza at a glance
| Detail | What we found |
|---|---|
| Provider | Reel Kingdom, published by Pragmatic Play |
| Layout | 5 reels, 3 rows, 10 fixed paylines, wins pay left to right |
| RTP | 96.71% (stated on Pragmatic Play’s game page and in the in-game rules). UK casinos can run different settings, see the RTP section |
| Volatility | Described as medium-high to high by most reviewers. The in-game rules screen uses a generic low volatility label, see the volatility section |
| Max win | 2,100x your total stake (stated in the in-game rules) |
| Stake range in the game rules | 0.10 to 250 in unrestricted markets. UK casinos apply their own caps, see below |
| UK max stake | £2 for ages 18 to 24, £5 for ages 25 and over |
| Free spins trigger | 3, 4 or 5 scatters award 10, 15 or 20 free spins |
| Hit frequency | Not officially published. OLBG lists about 1 in 7.7 spins, see the hit frequency section |
| Bonus buy | None shown in the demo |
How to play and stakes
Pick a total stake, press spin and match symbols from the leftmost reel across adjacent reels. Ten fixed lines are always active, so the stake you choose is the stake you pay. Only the highest win on each line counts, and wins on several lines are added together.
The game’s own rules screen lists a minimum stake of 0.10 and a maximum of 250 for the unrestricted version. That top figure does not apply to UK players. The UK Gambling Commission caps slot stakes at £2 for 18 to 24 year olds and £5 for those aged 25 and over, so on a UK-licensed site you will see a lower ceiling. Individual casinos can also set tighter limits of their own.
Here is what common UK stakes mean for the headline numbers:
| UK stake per spin | Top fish symbol line win (200x) | Max win cap (2,100x) |
|---|---|---|
| £0.10 | £20 | £210 |
| £1 | £200 | £2,100 |
| £2 | £400 | £4,200 |
| £5 | £1,000 | £10,500 |
Autoplay and turbo spins appear in the global demo, but UK rules restrict fast-play features, so a UK casino version will feel slower.
RTP: which figure to trust
Pragmatic Play’s game page lists an RTP of 96.71%, and the in-game rules in the demo say the same (“the theoretical RTP of this game is 96.71%”). That is the headline version and it sits above the average for the industry.
It is not guaranteed that your casino runs it. Pragmatic Play allows operators to choose lower settings, and some independent sites report 95.67% and 94.5% versions of this game. We could not confirm those lower figures on the provider’s page, so treat them as reported rather than verified. The practical advice is simple: open the game information screen at your own casino and read the RTP stated there, because UK casinos can run different RTP settings from the one in the demo.
RTP is a long-run average over a very large number of spins. It says nothing about a single session, which can finish well above or well below it.
Volatility
Reviewers disagree on the label. Most independent sites place Big Bass Bonanza at medium-high or high, around 4 out of 5, and OLBG’s series guide lists it as medium-high. The in-game rules page in the demo, however, shows a “low volatility” badge with a generic explanation, which does not match how the game plays or how most reviewers rate it.
In practice the profile is bonus-led. The base game pays small, regular amounts, and the bulk of the return comes from free spins that can swing a long way in either direction. Expect quiet stretches. Pick a stake that lets you ride them out, because the game gives you few big hits outside the bonus.
Max win
The in-game rules cap a free spins round at 2,100x your total stake. When the total reaches that level, the round ends immediately, the win is paid and any remaining free spins are forfeited. At a £5 stake that is £10,500, and at £1 it is £2,100.
By the standards of newer slots, 2,100x is modest. The trade-off is that the figure is reachable far more often than the top prizes of games advertising tens of thousands of times the stake. One independent source puts the probability of the maximum win at around 1 in 3.88 million spins, but that is a third-party calculation and Pragmatic Play does not publish it, so use it as a rough guide only.
Features and bonus rounds
Money symbols
Fish symbols pay as ordinary high-value symbols in the base game, and they also carry a cash value. According to the rules, each fish takes a random value of 2x, 5x, 10x, 15x, 20x, 25x, 50x or 2,000x your total stake. Those values only matter once the free spins begin.
Free spins
Three scatters trigger 10 free spins, four trigger 15 and five trigger 20. Scatters can land on all reels. During the feature the fisherman wild appears and substitutes for everything except the scatter.
The fisherman wild
Every wild that lands collects the values of all fish money symbols visible on the screen. If several wilds land together, each one collects the same fish, so a busy screen of fish with a couple of wilds is the picture you are waiting for.
Retriggers and multipliers
Each fourth wild collected during the round retriggers the feature. It adds 10 more free spins and raises the multiplier applied to money collection: 2x for the first retrigger, 3x for the second and 10x for the third. The extra spins are played after the current batch ends, and the multiplier applies to them. After the third retrigger the feature cannot retrigger again. This ladder is what gives the game its upside, and the 10x level is the route towards the cap.
Random fish
When only one wild is on the screen at the end of a free spin, extra fish money symbols can drop into random positions. It is a small safety net that keeps a feature from drying up completely.
Symbols and paytable
The table below shows five, four and three of a kind as multiples of your total stake, worked out from the in-game paytable in the demo. Exact payouts in your casino are shown in its own paytable.
| Symbol | 5 of a kind | 4 of a kind | 3 of a kind |
|---|---|---|---|
| Float (top symbol, also pays for 2) | 200x | 20x | 5x (2 pay 0.5x) |
| Fishing rod | 100x | 15x | 3x |
| Dragonfly | 50x | 10x | 2x |
| Tackle box | 50x | 10x | 2x |
| Fish (money symbol) | 20x | 5x | 1x |
| A, K, Q, J, 10 | 10x | 2.5x | 0.5x |
The wild (the fisherman) only appears in free spins and the scatter is a separate fish-themed symbol. Neither pays in the same way as the line symbols.
Win rate and hit frequency
Pragmatic Play does not publish a hit frequency for Big Bass Bonanza, so there is no official figure. The nearest named independent source is OLBG’s Big Bass series guide, which lists a hit rate of about 1 in 7.7 spins (roughly 13%) and a free spins frequency of about 1 in 113 spins. SlotPal’s existing guide to hit rates in Big Bass and Eye of Horus uses the same OLBG data, so the numbers stay consistent across the site.
Other sites quote different values. One review site gives about 13%, while another claims about 32%, with no method shown for either. We have not used those. Treat any hit rate as an estimate: no figure here is a promise about what you will see in a session.
Is Big Bass Bonanza enjoyable?
SlotPal’s verdict comes from the game’s mechanics, the provider’s published rules and independent data, rather than from a long personal play session, so read it as an analysis and not a diary.
The appeal is clarity. There are no layered side features to learn, and the free spins round is easy to follow: look for fish, hope for wilds, and watch the multiplier climb. The base game is the weak point. Wins are small and the pace is slow, which makes the bonus feel like the only reason to be there. If you enjoy long waits punctuated by one tense feature, it works. If you want constant action, it will feel repetitive.
Verdict: a well-built, simple bonus-led slot that earns its place as the series’ foundation, but the quiet base game and a modest 2,100x cap mean it suits patient, low-stake players better than anyone chasing a huge win.
How we checked the figures
- RTP and feature rules: Pragmatic Play’s Big Bass Bonanza page and the in-game rules screen in the demo.
- Stake range, paytable and 2,100x cap: the in-game rules screen (global demo).
- Hit frequency and bonus frequency: OLBG, as used in SlotPal’s hit rate guide. Not officially published.
- Alternative RTP settings: reported by third-party sites, not confirmed on the provider page.
- UK stake caps: UK Gambling Commission rules for online slots.
Pros and cons
Pros
- Simple, easy-to-learn layout with ten fixed paylines
- 96.71% headline RTP is above the industry average
- Retrigger and multiplier ladder gives the free spins real tension
- Low minimum stake keeps it accessible
- Reachable max win compared with ultra-high-cap slots
Cons
- Quiet, repetitive base game
- 2,100x max win is modest by modern standards
- Long dry spells between free spins
- Casinos may run lower RTP settings
- Volatility labels disagree between the in-game rules and reviewers
Frequently asked questions
What is the RTP of Big Bass Bonanza?
The provider’s page and the in-game rules state 96.71%. Some operators run lower versions, so check the information screen at your own casino.
Is Big Bass Bonanza high volatility?
Most reviewers rate it medium-high to high because the return depends heavily on the free spins. The demo’s rules screen shows a generic low volatility badge, which is why it is best to judge by how the game pays rather than the label.
What is the maximum win?
2,100x your total stake, according to the in-game rules. At a £5 stake that is £10,500. Once the round reaches that level it ends and any remaining free spins are lost.
What are the minimum and maximum stakes for UK players?
The rules screen lists 0.10 to 250, but UK casinos cap slot stakes at £2 for ages 18 to 24 and £5 for ages 25 and over. The minimum on UK sites is usually £0.10.
How do I trigger the free spins?
Land three, four or five scatters to receive 10, 15 or 20 free spins.
What does the fisherman wild do?
During free spins it collects the values of all fish money symbols on the screen. Every fourth wild collected retriggers the feature with 10 more spins and a higher multiplier.
How high can the multiplier go?
Money collection is multiplied by 2x after the first retrigger, 3x after the second and 10x after the third. After that the feature cannot retrigger again.
How often does the bonus trigger?
Pragmatic Play does not publish this. OLBG lists about 1 in 113 spins for the free spins feature, and that is a third-party estimate.
Is there a bonus buy?
The demo does not show a bonus buy option. Check the menu at your casino, because availability depends on the operator and the market.
Can I play Big Bass Bonanza for free?
Yes, the demo above uses play money. It runs on a global server and shows dollars, and a UK casino version uses pounds and may play slightly differently because of UK rules.
Is Big Bass Bonanza still worth playing now there are so many sequels?
It remains the cleanest version of the idea. Sequels such as Big Bass Splash add modifiers and others raise the maximum win, but this one is the simplest place to understand the series.
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