Big Bass Boom Slot Demo by Pragmatic Play
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Written by Secod on 01-10-2024 · Updated on 23-10-2026
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Big Bass Boom by Pragmatic Play Slot Overview
Big Bass Boom by Pragmatic Play keeps the fisherman Wild of Big Bass Bonanza, who collects fish Money symbols during Free Spins on 10 paylines, and adds what the original never had: 0 to 5 random modifiers drawn before each round, from More Fish to Start from Level 2. Colourful underwater scenery and oversized fishing symbols frame the reels.
During Free Spins, fisherman symbols collect fish values and build towards retriggers with rising collection multipliers. Random dynamite, hook and bazooka effects add further variety, while medium volatility accompanies a maximum win of 5,000x the bet. Try the free demo on BonusTiime without an account or deposit.

Big Bass Boom Slot Specifications
Big Bass Boom uses a fixed 5×3 grid and 10 paylines. This Pragmatic Play slot runs with a 2.00% house edge when using Buy Free Spins.
RTP (Return to Player)
The theoretical RTP is 97.97% in the base game and 98.00% when using Buy Free Spins. These are the figures in the rules of the version tested, a Stake exclusive; Pragmatic Play publishes no page for Big Bass Boom, so no other RTP is documented for it.
Volatility
Medium volatility keeps the pacing balanced, with steady hits and room for larger swings.
Max Win
The maximum win is capped at 5,000x the bet.
Big Bass Boom Slot Features

Big Bass Boom packs Free Spins, Money Symbols, Wild collection, retrigger levels, and random dynamite, hook, and bazooka effects into a feature-heavy fishing setup.
Money Symbol
The fish-paying symbols also act as Money Symbols during Free Spins. Each one carries a random value from 2x to 5000x total bet, and every collected value feeds the round’s total. This mechanic gives the bonus its main scoring system.
Free Spins
Hit 3 or more Scatter symbols to start Free Spins. Three scatters award 10 spins, four award 15 spins, and five award 20 spins. Before the round begins, 0 to 5 modifiers are randomly selected: More Fish, More Fisherman, More Dynamites, Hooks and Bazookas, Start from Level 2, and +2 Spins, which adds 2 spins at the start and 2 more to every retrigger.
Wild
The fisherman is the Wild symbol. It appears on all reels during Free Spins and substitutes for every symbol except Scatter. During the feature, each Wild also collects all Money Symbol values on the screen, and all collected WILDs stay tracked until the round ends.
Retriggers
Every 4th collected Wild retriggers Free Spins, awards 10 more spins, and advances the collection multiplier. The multiplier reaches 2x on the second level, 3x on the third level, and 10x on the fourth level. After level four, the feature cannot retrigger again.
Buy Free Spins
This feature lets you purchase the Free Spins round directly from the base game.
- Buy Free Spins: x100 the bet; starts Free Spins instantly.

Where to Play Big Bass Boom by Pragmatic Play
Big Bass Boom is a Stake exclusive and can only be played on Stake.com through the Stake Engine: Stake is currently the only casino offering Pragmatic Play content for this title.
Only on StakeStake: play Big Bass Boom with €30 free for a €20 deposit
8.9/10 BonusTiime score
- BonusTiime exclusive€30 free for a €20 deposit
- Wageringx1 on the €30
- Min deposit€20
- AvailabilityStake only
- Game studios672
Big Bass Boom Slot Review
Big Bass Boom uses the familiar fishing setup, but its identity comes from the underwater art, oversized symbols, and the way the fisherman, fish, and gear sit inside the reel space. The bright underwater backdrop and cartoon styling keep the slot easy to read, while the Big Bass label makes the series link obvious.
The strongest point is the bonus structure. Free Spins add random modifiers before the round starts, then the fisherman collects fish values and builds retrigger levels through collected Wilds. That gives the slot more movement than a basic fishing reskin, although the base game still leans heavily on waiting for scatters or the buy option.
Big Bass Boom features a collection multiplier that can climb during the Free Spins round, while the 5,000x cap gives the bonus a clear ceiling. The medium volatility keeps it workable, but the game stays more mechanical than inventive, even with the added modifier system.
Big Bass Boom Slot FAQ
How Do You Trigger Free Spins?
Big Bass Boom triggers Free Spins when 3 or more Scatter symbols land. Three scatters award 10 spins, four scatters award 15 spins, and five scatters award 20 spins. The bonus can also start from the base game through the buy feature, which launches it instantly for a fixed cost.
What Does The Buy Feature Cost?
The Buy Free Spins option costs x100 the bet. It starts the Free Spins round straight away, and the triggering spin can show 3, 4, or 5 Scatters. This gives direct access to the bonus without waiting for a natural scatter hit during normal play.
What Is The Maximum Win?
Big Bass Boom has a 5,000x maximum win. The rules say the round ends immediately if a Free Spins round reaches that cap, and any remaining spins are forfeited. That makes the top payout a fixed ceiling, rather than an open ended bonus climb.
Can You Play The Demo For Free?
Yes, the free demo is available on this BonusTiime page. You can play without a deposit or account, which makes it easy to test the 5 by 3 setup, the bonus trigger, and the buy feature before committing any cash balance.
How Does The Signature Collection Mechanic Work?
During Free Spins, the fisherman Wild collects all values from Money Symbols on the screen. Each collected Wild stays tracked until the round ends, and every 4th Wild retriggers the feature with 10 extra spins. The collection multiplier then rises across the later levels.

Before specialising in SEO and editorial strategy, Secod spent thousands of hours streaming and testing slot games extensively. This high-volume gameplay experience allows him to analyse volatility patterns, bonus frequency, feature depth and provider mechanics with accuracy. Every slot review he produces reflects genuine testing experience rather than theoretical summaries.
Quick Infos
- RTP97.97% – 98.00%
- VolatilityMedium
- Max Win5,000x
- ProviderPragmatic Play
- SeriesBig Bass
- Min / Max Bet€0.10 – €1,000
- Grid5×3
- Paylines10
- House Edge2%
- Release Date24-10-2024
- Free SpinsYes
- AutoplayYes
- Gamble FeatureNo
- Available on MobileYes
- Bonus BuyYes
- FeaturesWild Symbol, Scatter Symbol, Random Features, High RTP, Wild Multipliers, Symbol Collection, Bonus Buy, Medium Volatility
- ThemesFishing, Underwater Treasure, Action and Adventure
Stake game stats
as of 4 Aug 2026- Bets (all-time) 503M
- Bets (last 28 days) 56.3M
- Wagered (all-time) $449M
Shorter windows
- Bets (last 24 hours) 1.87M
- Bets (last 7 days) 22.1M
- Wagered (last 24 hours) $375K
- Wagered (last 7 days) $3.94M
- Wagered (last 28 days) $12.6M
Biggest wins on Stake
- $1,561,638 977× 13 Apr 2025
- $1,358,304 756.20× 7 Nov 2024
- $1,085,425 986.70× 24 Jan 2025
Biggest multipliers on Stake
- 5,000× $207 30 Jul 2026
- 5,000× $219 29 Jul 2026
- 5,000× $282 29 Jul 2026
Source: Stake, figures as of 4 August 2026
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