
| Developer | Pragmatic Play |
|---|---|
| Release date | December 2020 |
| Theme | Fishing |
| Reels x rows | 5x3 |
| Paylines | 10 fixed |
| RTP | 96.71% |
| Other RTP versions | 95.67%, 94.02% |
| Volatility | Medium-high |
| Max win | 2,100x |
| Hit frequency | 13% |
| Bet range | 0.10 to 250 (varies by market) |
Big Bass Bonanza is the fishing slot that launched one of the biggest series in online casino history. Built by Reel Kingdom and released by Pragmatic Play in December 2020, it swaps scatter pays for a classic 5×3 reel set with 10 fixed paylines, and saves all its excitement for a free spins round where a fisherman reels in cash prizes.
Game Information
How Big Bass Bonanza plays
Wins pay left to right across 10 fixed paylines. The base game is simple: low-paying card symbols, higher-paying fishing gear, and fish symbols that carry a random cash value. In the base game, those fish values don’t pay on their own. They only matter once the bonus starts.
That makes the base game fairly quiet. Wins land on roughly 13% of spins, which is low, so expect long stretches of small or no wins between bonuses.
Free spins
Three, four or five scatter symbols trigger 10, 15 or 20 free spins. In the bonus, the fisherman wild comes into play. Every time he lands, he collects the cash value of every fish on the reels.
Each fisherman is also collected on a meter. Every fourth one retriggers 10 more free spins and raises a multiplier on collected fish: 2x after the first retrigger, 3x after the second, and 10x after the third. Reaching that final 10x stage is where the biggest wins come from.
Max win and RTP
The maximum win is capped at 2,100x the stake, modest by modern standards. In return, the game is easier to follow, and wins in the bonus are more predictable than in pay-anywhere multiplier slots. The default RTP is 96.71%, one of the higher figures in Pragmatic’s range, but casinos can also run 95.67% or 94.02% versions. Check the game’s information screen before you play for real money. For real-money play, start with our guide to online casinos in 2027.
Who it suits
Big Bass Bonanza suits players who like a traditional reel layout and a bonus round that builds in clear steps. The 2,100x cap means it’s not the game for chasing life-changing wins. If that’s what you want, the pay-anywhere multiplier games like Gates of Olympus or Sweet Bonanza have a far higher ceiling.
FAQ
What is the max win on Big Bass Bonanza?
2,100 times your stake. The odds of reaching it are roughly 1 in 3.9 million spins.
What is the RTP of Big Bass Bonanza?
96.71% by default. Casinos can also run 95.67% or 94.02% versions.
How do you trigger free spins in Big Bass Bonanza?
Land three, four or five scatters for 10, 15 or 20 free spins.
How do the multipliers work in Big Bass Bonanza?
Every fourth fisherman wild collected in free spins retriggers 10 spins and raises the multiplier on fish values to 2x, then 3x, then 10x.
18+ only. Free demos use play money. If you play for real money, set a limit first. Responsible gambling.



