
| Game developer | Pragmatic Play |
| Progressive Jackpot | |
| Configurable winlines | |
| Free spins | |
| Autoplay | |
| Quickspin feature | |
| Gamble feature |
| Bonus buy | |
| Number of winlines | 10 |
| Layout | 3-3-3-3-3 |
| Min bet | $0.1 |
| Max bet | $250 |
| Release date | June 2024 |
| Last update | 16 Jul 2025 |
Play Big Bass Mission Fishin demo slot online for fun. Enjoy free casino games in demo mode on Casino Guru. Expert review included.

Head to sea with this cool spy-tech fishing slot. Swim with a mechanical fish as you enjoy the game’s high volatility and decent RTP (96.5%).
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Big Bass Mission Fishin is a slot machine by Pragmatic Play. According to the number of players searching for it, Big Bass Mission Fishin is not a very popular slot. Still, that doesn't necessarily mean that it's bad, so give it a try and see for yourself, or browse popular casino games.
To play for free in demo mode, just load the game and press the 'Spin' button. You can learn more about slot machines and how they work in our online slots guide.
Big Bass Mission Fishin is a fishing-themed slot with a high-tech feel. The combination of a nighttime setting and radar-green color scheme give this fishing trip the feel of a spy thriller as much as a gentle trip upon the briny blue.
This slot will appeal to the kind of player who likes to go fishing but feels they need more James Bond-style gadgets to bring with them.
The neat imagery of this slot is done in a clean, semi-realistic cartoon style with images on the reels of high-tech fishing gear, dragonflies, mechanical fish, and — for some reason — a grappling hook.
The winning animations are fairly simple, but this is offset by many small background animations that liven things up. Bubbles rise in the background as fish swim between the seaweed forests and waves rise and fall above the reels.
The soundtrack music is a compelling movie theme that fits the atmosphere of the slot very well. Win and spin sounds and animations combine together to do a decent, if rather generic job. In a slot with such a complete world, the win and spin sounds could have been themed better.
However, overall the audio-visual elements of this slot are excellent.
Big Bass Mission Fishin slot has 5 reels with 3 rows and 10 win lines.
The base game has two settings. A Basic Setting where the player simple puts a wager on each win line (i.e. 10x the players bet per line) coming up, and the Ante Bet Setting in which the player bets an additional 5x their bet per line (i.e. 15x the players bet per line).
In the Ante Bet setting the chance to win Free Spins is increased by having more Scatters on the reels.
Usually, the player has the option to buy directly into the Free Spin bonus. However, you cannot buy into the Free Spin bonus while you have the Ante Setting active.
The maximum win on any given round is capped at 5,000x the player’s bet.
The Wild symbol substitutes for all other symbols. The one exception is the Scatter symbol.
The Scatter symbol pays out for three or more Scatters anywhere on the reel.
When the player wins with the Scatter symbol, they also trigger the Bonus Feature. Players can then choose which bonus feature they would like. Either the Free Spin Bonus or the Stack The Cash Bonus.
At the start of the Free Spins Bonus, a random modifier is chosen. These modifiers do things like adding certain symbols to the reel, increasing the starting level of the Free Spins Bonus, or starting the bonus with two extra spins.
During the Free Spins Bonus, the Fish symbols — all of which have a randomized money value — become Money symbols. When Money symbols are active, the player can win the value of those symbols by landing a Scatter symbol on the same spin as a Money symbol. When this happens, the Scatter symbol collects the value on all the money symbols.
There are several levels, with additional features and rewards at each level. The level is increased by landing enough Scatter symbols.
Stack The Cash changes the reels more significantly. The reels are replaced with just two symbols, Coins and Blanks. The player receives a spin counter that starts at four. When a Coin symbol lands in a spin, the spin counter resets.
The Coin symbols have a randomized value between 1x and 25x the player's bet per spin.
When the spin counter hits zero, the player wins all the value of the coins on the reels and the feature ends.
To further enhance the feature, when the player fills a reel, the value of the coins is banked and the reel is emptied. Additionally, random multipliers can land on the reels, when they do, the multiplier is applied to all the coins on that reel.
The return to player of Big Bass Mission Fishin is 96.5%. This is a bit higher than our yardstick for average of roughly 96%.
The range of bets on the site we tested ran from a minimum bet per spin of $/£/€0.10 up to a maximum of $/£/€250.00 per spin.
Big Bass Mission Fishin is a high-volatility slot, making it a good match for our preferred slot machine strategies. Our slot strategies target the highest possible volatility and RTP.
This is a cool, high-tech fishing-themed slot with some great visuals, a solid soundtrack, and a fun setting.
The combination of a better-than-average RTP and high volatility make this a great game for any player who follows our slot strategies.
Overall, this slot is one we can definitely recommend you take a bite at.
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