Play the Big Bass Mission Fishin’ demo for free
Try the Big Bass Mission Fishin’ demo below before you read the review. It is a free slot you can play for free with no real money at stake, so it is a safe way to try before you play for real. 18+ only.
Big Bass Mission Fishin’ is a Pragmatic Play slot released in June 2024, set on a night-time covert fishing mission instead of the sunny riverbank of the first game. It uses the familiar five reel, three row, ten payline format and gives you a choice of two bonuses: a free spins round with a climbing multiplier, or a hold-and-win round called Stack the Cash. You can play the Big Bass Mission Fishin’ demo for free at the top of this page.
This review covers the RTP versions reported, the disputed volatility rating, the 5,000x maximum win in pounds, both bonus rounds, a hit frequency that only one source gives, and where the sources disagree. For a more opinionated take on which bonus to pick, read our Big Bass Mission Fishin’ guide.
Big Bass Mission Fishin’ at a glance
| Detail | Figure |
|---|---|
| Provider | Pragmatic Play |
| Released | 17 June 2024 (one source gives only 2024) |
| Layout | 5 reels, 3 rows, 10 fixed paylines |
| RTP | 96.50% (96.07%, 95.50% and 94.50% also reported) |
| Volatility | High (sources say medium, high and very high) |
| Maximum win | 5,000x the stake |
| Stakes | From 10p, with a top stake reported at £250 |
| Free spins | 10, 15 or 20 for 3, 4 or 5 scatters |
| Other bonus | Stack the Cash hold-and-win, 4 respins |
| Hit frequency | 13.12% (one source, unconfirmed) |
Overview
The series stays the same at its core. A fisherman wild collects the cash values on fish, and the money symbols can pay out large multiples of the stake. What changes here is the choice. Before a bonus you can take the classic free spins round or go for Stack the Cash, so the game plays like two different slots depending on which bonus you pick.
The spy theme runs through the free spins round. You choose from a set of modifiers before the spins begin, which is why the game feels more like a mission briefing than the earlier titles.
How to play and stakes
It is played on five reels and three rows with ten fixed paylines. Wins pay from left to right. Sources give a minimum stake of 10p and a top stake of £250, and one source reports an ante bet that raises the stake by 50%. Another source says standard play stops at £5 and a higher range needs an adjustment, so the limits you see depend on the casino.
Landing three or more scatters triggers the bonus. You then choose between the free spins round and Stack the Cash.
RTP and the versions you may meet
The headline figure is 96.50%. Two sources list three versions, 96.50%, 95.50% and 94.50%, and another lists 96.07%. Operators can choose which version to run, so the figure in the game information at your casino is the one that applies to you. A lower version costs you more over time on every pound staked, so it is worth checking before you play for real.
Volatility
The sources do not agree. One says medium, our own hands-on guide says high and another source says very high. We treat it as a high-swing slot. A quiet base game with rare large bonuses means a short session can tell you little, and the demo is the safest way to feel that for yourself.
Max win and what it is worth in pounds
Every source gives the same cap: 5,000x the stake. In pounds that depends on what you stake.
| Stake | 5,000x win |
|---|---|
| 10p | £500 |
| 50p | £2,500 |
| £1 | £5,000 |
| £5 | £25,000 |
| £10 | £50,000 |
The cap is the same however you reach it. In the free spins round the top multiplier of 10x is where the biggest wins are most likely to sit.
Free spins and the multiplier trail
Three, four or five scatters award 10, 15 or 20 free spins. Before the spins begin you pick a modifier from a set of choices. Two examples reported are starting on the second level of the trail and adding two extra spins to the start. One source says there are six modifiers in all, and another describes them as top secret files.
During the round the wild collects the values on money symbols. Every fourth wild collected awards 10 extra free spins and moves the multiplier up a level, from 2x on level two to 3x on level three and 10x on level four.
Stack the Cash
The alternative bonus is a hold-and-win round. You start with four respins, and coin symbols that land carry random values from 1x to 25x the stake. Bomb symbols double coin values when they land, according to two sources. It is a very different feel from the free spins round, with the tension coming from the respin counter and not from a climbing multiplier.
Symbols and paytable
One source lists the low-paying symbols, the card ranks 10 to A, at between 0.2x and 10x the stake. The higher-paying themed symbols, tackle boxes, harpoons, dragonflies and speedboats, are listed at between 2x and 200x. Fish symbols pay between 1x and 20x. The wild is the big bass and the scatter is the fisherman.
Hit frequency and win rate
Only one source gives a hit frequency, 13.12%. That would mean roughly one spin in eight returns something. We could not confirm the figure with Pragmatic Play, so we show it as unconfirmed. Combined with the high volatility rating it fits a game where many spins return nothing and the bonus carries most of the value.
Is Big Bass Mission Fishin’ enjoyable? Our verdict
It suits players who like the Big Bass formula but want a decision to make. The choice of bonus is the main addition, and it gives the game some replay value, especially once you have tried both bonuses in the demo. It will frustrate anyone who wants frequent small wins, because the base game can be quiet.
Pros and cons
Pros
- A choice between free spins and Stack the Cash.
- A multiplier trail that climbs to 10x in free spins.
- A 5,000x maximum win.
Cons
- The base game can be quiet.
- Sources disagree on RTP, volatility and the bonus buy.
- Lower RTP versions are reported.
Big Bass Mission Fishin’ FAQ
What is the RTP of Big Bass Mission Fishin’?
Sources disagree. One lists 96.07%. Others list 96.50%, with lower versions of 95.50% and 94.50%. Operators can choose which version to run, so check the game information at your casino.
How volatile is Big Bass Mission Fishin’?
Our own hands-on guide calls it high, one source says very high and another says medium. The sources do not agree, so treat it as a high-swing slot and expect long quiet spells.
What is the maximum win on Big Bass Mission Fishin’?
5,000x the stake, which every source agrees on. At a 10p stake that is £500 and at a £1 stake it is £5,000.
What are the stakes on Big Bass Mission Fishin’?
Sources give a minimum of 10p and a top stake of £250. One source says standard play stops at £5 and a higher range needs an adjustment, so check the stake limits at your casino.
How does the free spins bonus start?
Landing 3, 4 or 5 scatters awards 10, 15 or 20 free spins. Before the spins begin you pick a modifier, such as starting on a higher level or adding extra spins.
How do the multipliers work in free spins?
The wild collects the values on money symbols. Every fourth wild collected awards 10 more spins and moves the multiplier up a level, from 2x to 3x and then 10x.
What is Stack the Cash?
A hold-and-win bonus you can choose instead of free spins. You start with four respins and coin symbols carry values from 1x to 25x the stake. Bomb symbols double coin values, according to two sources.
Is there a bonus buy on Big Bass Mission Fishin’?
One source lists a feature buy at 100x the stake. Another review does not mention one. Check whether it is offered where you play, as availability can differ.
How often does Big Bass Mission Fishin’ pay?
One source gives a hit frequency of 13.12%. We could not confirm that figure with Pragmatic Play, so treat it as unconfirmed.
Can I play the Big Bass Mission Fishin’ demo for free?
Yes. The Big Bass Mission Fishin’ demo at the top of this page is free to play and uses no real money. It is for over-18s only. A short demo session tells you little about the long-run return that the RTP describes.
Is there a free play version of Big Bass Mission Fishin’ for UK players?
The free demo above is the free play version, so you can try before you play for real. Check the game information at your casino for the RTP version and stake limits that apply to you.
Is this the same article as your Big Bass Mission Fishin’ guide?
No. This page covers the figures and mechanics. Our Big Bass Mission Fishin’ guide is a hands-on take on which bonus to pick.
How we checked the figures
- Release date, RTP versions, volatility, hit frequency, stakes and both bonus rounds: OLBG, FishingSlots and PokerNews game pages, compared for conflicts and read on 4 October 2026.
- Features, modifiers and the multiplier trail: also checked against our own Big Bass Mission Fishin’ guide.
- Where sources disagree we say so. The Pragmatic Play game page was not used for any figure, so none is confirmed with the studio.
- Maximum win in pounds is 5,000 multiplied by the stake.
