Big Bass Bonanza by Pragmatic Play — Full Review
Big Bass Bonanza, developed by Reel Kingdom for Pragmatic Play and released in December 2020, is a 5-reel, 3-row fishing-themed slot with 10 fixed paylines. It launched what has become the largest slot franchise in iGaming history — as of March 2026, the Big Bass series comprises 37 games, including Big Bass Splash, Big Bass Bonanza Megaways, Big Bass Vegas, and dozens of seasonal and regional variants.
The game's core innovation is the Fisherman Wild collection mechanic: during Free Spins, Fisherman Wild symbols "catch" all visible Money Fish on the grid, collecting their random cash values. Collecting enough Fishermen triggers a multiplier progression system (1x → 2x → 3x → 10x) that multiplies all subsequent Money Fish catches.
Big Bass Bonanza stands apart from the scatter-pays games that dominate Pragmatic Play's portfolio. Where Gates of Olympus and Sweet Bonanza use 6x5 grids with tumble mechanics and multiplier orbs, Big Bass Bonanza uses the classic 5x3 format with 10 paylines — mechanically closer to Book of Dead than to its own publisher's scatter-pays lineup.
The game's concept draws directly from Blueprint Gaming's Fishin' Frenzy (~2014) but modernizes it with improved graphics, the multiplier progression system, and Buy/Ante features. The result was so successful that Pragmatic Play built an entire franchise around it — more titles than any other single slot concept in online gambling history.
What Are the Key Numbers for Big Bass Bonanza?
| Metric | Value |
|---|---|
| Developer | Pragmatic Play |
| RTP | 96.71% (96.71% / 95.67% / 94.50%) |
| Volatility | High |
| Max Win | 2,100x |
| Grid | 5x3 |
| Paylines | 10 fixed paylines |
| Min Bet | $0.10 |
| Max Bet | $250.00 |
| Game Type | Video Slots |
| Year | 2020 |
| Hit Frequency | 13.0% |
The 3.29% house edge means Big Bass Bonanza keeps $3.29 of every $100 wagered across millions of spins. This is a mathematical certainty built into the certified paytable — no strategy, timing, or bet pattern changes it. For context, the industry average for video slots is approximately 3-5% house edge, placing Big Bass Bonanza in the competitive range at 96.71% RTP.
Big Bass Bonanza's 96.71% RTP is the highest default in this comparison — a 3.29% house edge versus 3.50% for Gates of Olympus, 3.51% for Sweet Bonanza, and 3.62% for Wanted Dead or a Wild. Over 10,000 spins at $1, that saves $21.00 compared to Gates of Olympus and $33.00 compared to Wanted Dead or a Wild. Small per-spin, but meaningful over extended play.
— Galaxy of Slots Editorial Team
How Does Big Bass Bonanza Actually Work?
Big Bass Bonanza uses a 5x3 grid (15 positions) with 10 fixed paylines. Wins are evaluated left to right, requiring 3+ matching symbols on a payline. The base game plays like a standard 5-reel slot — Money Fish symbols are visible but cannot be collected until Free Spins activate.
Base Game
Standard 5x3 reel spins with 10 paylines. Money Fish symbols form winning payline combinations in the base game (paying 1x, 5x, 20x for 3, 4, 5 symbols), but their cash values cannot be collected — the collection mechanic only activates during Free Spins. The Fisherman Wild symbol does not appear in the base game; it is exclusive to Free Spins.
Free Spins — Fisherman Wild Collection
When Free Spins trigger (3+ Scatter symbols), the collection mechanic activates:
- Money Fish appear with random cash values (2x to 2,000x your bet)
- When a Fisherman Wild lands, he "catches" ALL visible Money Fish on the grid
- The total catch value (sum of all Money Fish) is paid as a single win
- If a Fisherman lands with no Money Fish visible, a Dynamite feature can generate Fish
Multiplier Progression
Collecting Fisherman Wilds during Free Spins triggers a 4-level progression system:
| Level | Fishermen Collected | Multiplier | Bonus |
|---|---|---|---|
| Level 1 | Start | 1x | — |
| Level 2 | 4 total | 2x | +10 Free Spins |
| Level 3 | 8 total | 3x | +10 Free Spins |
| Level 4 | 12 total | 10x | +10 Free Spins |
The multiplier applies to Money Fish collection only (not to regular payline wins). Reaching Level 4 (10x) is the path to the 2,100x max win. Note the jump from 3x to 10x at Level 4 — this is the critical threshold that transforms a mediocre bonus into a significant payout.
Core Features
- Fisherman Wild Collection
- Money Fish Values (2x-2,000x)
- Multiplier Progression (1x/2x/3x/10x)
- Free Spins (10/15/20)
- Buy Feature (100x)
- Ante Bet (+50%)
What Does Each Symbol Pay in Big Bass Bonanza?
All payouts below are per total bet (assuming 10 lines active).
High-Pay Symbols
| Symbol | 2-of-a-kind | 3-of-a-kind | 4-of-a-kind | 5-of-a-kind |
|---|---|---|---|---|
| Float/Bobber | 0.5x | 5x | 20x | 200x |
| Fishing Rod | — | 3x | 15x | 100x |
| Dragonfly | — | 2x | 10x | 50x |
| Tackle Box | — | 2x | 10x | 50x |
| Fish (regular) | — | 1x | 5x | 20x |
Low-Pay Symbols
| Symbol | 3-of-a-kind | 4-of-a-kind | 5-of-a-kind |
|---|---|---|---|
| A / K / Q / J / 10 | 0.5x | 2.5x | 10x |
Special Symbols
- Fisherman Wild: substitutes for all symbols; during Free Spins, collects all visible Money Fish
- Hooked Fish Scatter: 3/4/5 trigger 10/15/20 Free Spins
- Money Fish: carry random cash values (2x-2,000x bet) during Free Spins only
How Do Free Spins Trigger and Pay?
Free Spins trigger when 3, 4, or 5 Hooked Fish Scatter symbols land on the reels:
- 3 Scatters: 10 Free Spins
- 4 Scatters: 15 Free Spins
- 5 Scatters: 20 Free Spins
The trigger frequency is approximately 1 in 183 spins without Ante Bet, or 1 in 113 spins with Ante Bet active. This makes Big Bass Bonanza one of the most frequent bonus triggers among popular high-volatility slots — comparable to Book of Dead (1/177) and dramatically more frequent than Gates of Olympus (1/448) or Sweet Bonanza (~1/451).
At $0.10/spin without Ante: average cost to bonus = $18.30. With Ante ($0.15/spin): $16.95.
During Free Spins, the game transforms: Money Fish carry cash values, Fisherman Wilds collect them, and the multiplier progression system activates. Additional Fisherman collections at levels 4/8/12 award +10 extra Free Spins each, potentially extending the bonus significantly.
The 2,100x max win is lower than many popular slots — Sweet Bonanza (21,175x), Wanted Dead or a Wild (12,500x), and even Book of Dead (5,000x) all have higher ceilings. But the combination of high RTP (96.71%), frequent triggers (1/183), and the visual satisfaction of the collection mechanic explains the franchise's massive commercial success.
The Fisherman Wild collection mechanic created a new sub-genre in online slots. Before Big Bass Bonanza, the "collection during Free Spins" concept was limited to Hold & Spin features. Big Bass Bonanza made the collection the entire bonus structure — and the market responded: 37 franchise variants by 2026, making it the largest slot series ever produced. The mechanic works because it creates a clear, visual goal: see Fish, catch Fish, level up Fisherman. No abstract multiplier math required.
— Galaxy of Slots Editorial Team
Are the Buy Feature and Ante Bet Worth Your Money?
Big Bass Bonanza offers both a Buy Feature and an Ante Bet — notably, the Ante Bet is +50% (not +25% like most Pragmatic Play slots).
Buy Free Spins (100x bet)
- Cost: 100x your total bet ($10 at $0.10 base bet)
- Effect: Instantly triggers Free Spins (equivalent to natural 3-scatter trigger)
- Availability: Banned in UK, Sweden
Ante Bet (+50%)
- Cost: +50% added to every bet ($0.10 → $0.15)
- Effect: Increases scatter frequency — trigger improves from ~1/183 to ~1/113
- RTP: Approximately unchanged
- Important: This is +50%, not the +25% used by Gates of Olympus, Sweet Bonanza, and Sugar Rush. The higher cost reflects the more aggressive scatter frequency boost.
The Ante Bet nearly doubles your trigger frequency at +50% cost. Combined with the already-frequent base trigger rate (1/183), the Ante Bet version produces bonuses roughly every 113 spins — more than 3x more frequent than Gates of Olympus with Ante (~1/224).
What Does the Math Mean for Your Bankroll?
Big Bass Bonanza has the highest default RTP in this comparison at 96.71% — a 3.29% house edge. This is measurably better than Gates of Olympus (3.50%), Sweet Bonanza (3.51%), and Wanted Dead or a Wild (3.62%).
The practical impact:
- At $0.10/spin: expected loss per 1,000 spins = $3.29 (vs $3.50 for Gates of Olympus)
- Average cost to first bonus = $18.30 (without Ante) — among the cheapest of any high-volatility slot
- The frequent triggers (1/183) and low min bet ($0.10) make Big Bass Bonanza one of the most session-friendly slots for smaller bankrolls
The trade-off is the 2,100x max win — the lowest ceiling of any game reviewed here. Sweet Bonanza (21,175x) offers 10x the ceiling, Dead or Alive 2 (111,111x) offers 53x, and even Gates of Olympus (5,000x) doubles it. Big Bass Bonanza is designed for steady collection gameplay, not astronomical ceiling payouts.
For players who love the fishing mechanic but want higher win potential, the franchise variants are the answer: Big Bass Splash offers 5,000x max, Big Bass Bonanza Megaways adds the Megaways engine.
Where Do the Wins Actually Come From?
Big Bass Bonanza has a distinctive probability profile: very low hit frequency (13%) combined with very frequent bonus triggers (1/183).
- Hit frequency: ~13% — roughly 1 in 7.7 spins produces a return (the lowest among games in this review)
- Free Spins trigger (no Ante): ~1 in 183 spins
- Free Spins trigger (with Ante): ~1 in 113 spins
- Max win (2,100x) probability: approximately 1 in 3.88 million spins
The 13% hit frequency means 87% of spins produce no return at all. This is significantly lower than Book of Dead (29%), Gates of Olympus (28.82%), or Sweet Bonanza (22.27%). The game is designed around its bonus round — the base game is essentially a waiting phase between Fisherman Wild collection sessions.
This creates a unique playing rhythm: long dry stretches in the base game (7-8 spins between any return) punctuated by relatively frequent bonus rounds where the collection mechanic provides visual engagement even when the payout is modest.
Bankroll Scenario Table
| Bankroll | Bet Size | Bets per Bankroll | Expected Loss per 100 Spins | Avg Spins to First Bonus | Cost to First Bonus |
|---|---|---|---|---|---|
| $50 | $0.20 | 250 | $0.66 | ~183 | $36.60 |
| $100 | $0.20 | 500 | $0.66 | ~183 | $36.60 |
| $100 | $0.50 | 200 | $1.65 | ~183 | $91.50 |
| $100 | $1.00 | 100 | $3.29 | ~183 | $183.00 |
| $200 | $1.00 | 200 | $3.29 | ~183 | $183.00 |
| $500 | $2.00 | 250 | $6.58 | ~183 | $366.00 |
| $1,000 | $5.00 | 200 | $16.45 | ~183 | $915.00 |
Expected loss assumes 96.71% RTP (3.29% house edge). "Cost to First Bonus" is the average expected wagering ($bet × 183 spins) — actual results vary enormously due to High volatility. See our slot glossary for term definitions.
The 2,100x max win is the elephant in the room. It is objectively low compared to Sweet Bonanza (21,175x), Wanted Dead or a Wild (12,500x), or even the same publisher's Gates of Olympus (5,000x). But Big Bass Bonanza was never designed for ceiling chasers. It was designed for players who enjoy the journey — the collection, the multiplier progression, the Fisherman catching fish. The franchise's commercial success proves that not every player optimizes for maximum possible payout.
— Galaxy of Slots Editorial Team
How Does Big Bass Bonanza Compare to the Competition?
Big Bass Bonanza occupies a unique niche: fishing-themed collection mechanic on a classic 5x3 grid with the highest default RTP in this comparison.
| Feature | Big Bass Bonanza | Book of Dead | Sweet Bonanza | Gates of Olympus |
|---|---|---|---|---|
| Developer | Pragmatic / Reel Kingdom | Play'n GO | Pragmatic Play | Pragmatic Play |
| Year | 2020 | 2016 | 2019 | 2021 |
| Grid | 5x3 | 5x3 | 6x5 | 6x5 |
| Win Mechanic | 10 Paylines | 10 Paylines | Scatter Pays | Scatter Pays |
| RTP | 96.71% | 96.21% | 96.49% | 96.50% |
| Volatility | High (4/5) | High | High (4/5) | High (5/5) |
| Max Win | 2,100x | 5,000x | 21,175x | 5,000x |
| Hit Frequency | 13% | 29% | 22.27% | 28.82% |
| Bonus Trigger | 1/183 | 1/177 | 1/451 | 1/448 |
| Key Mechanic | Fisherman Collection | Expanding Symbol | Multiplier Bombs | Multiplier Orbs |
| Ante Bet | +50% | None | +25% | +25% |
| Franchise Size | 37 games | 18+ | 16+ | 4 |
What Sets Big Bass Bonanza Apart?
- Highest RTP — 96.71% is the best default in this comparison, giving a 3.29% house edge. You lose $3.30 less per $1,000 wagered compared to Wanted Dead or a Wild (96.38%).
- Collection mechanic — The Fisherman Wild catching Money Fish is a fundamentally different experience from multiplier orbs, bombs, or expanding symbols. It adds a tangible "hunting" feel to the bonus round that no abstract multiplier system can replicate.
- Frequent bonuses — At 1/183, Big Bass Bonanza triggers Free Spins almost as often as Book of Dead (1/177) and 2.4x more often than Gates of Olympus (1/448).
- Largest franchise in iGaming — 37 games (and counting) means players can find Big Bass variants for every preference: Megaways, higher max wins (Splash at 5,000x), seasonal themes, and more.
Are Big Bass Bonanza Predictor Apps Real?
Big Bass Bonanza's popularity has made it a frequent target for YouTube "strategy" videos and fake prediction apps.
"Big Bass Bonanza Strategy to Get 10x Multiplier"
The multiplier progression (1x → 2x → 3x → 10x) is determined by how many Fisherman Wilds land during Free Spins, which is entirely controlled by the RNG. No bet pattern, spin timing, or strategy affects Fisherman Wild appearance frequency. Collecting 12 Fishermen for the 10x multiplier is a random outcome.
"Big Bass Predictor App" / "Money Fish Value Hack"
These do not exist. Money Fish cash values are determined by the RNG at the moment they appear. No external app can predict or influence these values. "Predictor" and "hack" apps targeting Big Bass Bonanza's large player base are scams designed to steal personal data or money.
Variable RTP Warning
Big Bass Bonanza has three RTP configurations: 96.71% (default), 95.67%, and 94.50%. While even the lowest version (94.50%) has a reasonable 5.50% house edge, the difference from default is significant — $22.10 more lost per $1,000 wagered. Check the in-game info screen to verify your casino's version.
Fake APKs and Unlicensed Sites
Big Bass Bonanza is commonly featured in fake mobile APKs promising "guaranteed wins" or modified versions. These are malware. The real game is only available through licensed casinos that contract with Pragmatic Play directly. Always verify the casino's license before playing.
Common Myths Debunked
- "The game decides in advance how much your bonus will pay" — False. Each spin within Free Spins is independently determined by the RNG. Money Fish values, Fisherman Wild appearances, and all outcomes are generated in real-time, not pre-determined.
- "Bigger bets get bigger Money Fish values" — The Money Fish value range (2x-2,000x of bet) is the same at all bet sizes. Bet size scales the absolute payout amount but not the multiplier distribution. A $0.10 bet has the same chance of a 2,000x Money Fish as a $250 bet.
- "Big Bass Splash is always better because of higher max win" — Big Bass Splash (5,000x max) has additional features (Dynamite, Bazooka, Hook modifiers) but the same 96.71% RTP. Higher max win means more extreme variance. For straightforward collection gameplay without bonus-round modifiers, the original is often more consistent.
- "The +50% Ante Bet is a trap because it costs more than other games" — The +50% Ante Bet is more expensive per spin than the +25% Ante in Gates of Olympus or Sweet Bonanza, but the trigger improvement (1/183 → 1/113) is proportionally stronger. RTP remains approximately unchanged. It is mathematically neutral, not a trap.
- "The Fisherman always catches the lowest value fish" — The Fisherman catches ALL visible Money Fish simultaneously, not selectively. If three fish with values 5x, 50x, and 500x are on the grid, the Fisherman collects all three (555x total before multiplier). The perception of "low catches" comes from confirmation bias and the fact that low-value Money Fish are statistically more common than high-value ones.
Who Is Big Bass Bonanza Actually For?
Big Bass Bonanza is designed for players who enjoy collection-based mechanics with frequent bonus rounds and the highest default RTP in this comparison.
Choose Big Bass Bonanza if:
- You prefer the tangible satisfaction of "catching" prizes over abstract multiplier systems
- You want the highest default RTP available (96.71% — lowest house edge in this comparison)
- You prefer very frequent bonus triggers (1/183 without Ante, 1/113 with Ante)
- You enjoy the fishing theme and want access to 37 franchise variants for different experiences
- You prefer classic 5x3 grids over modern 6x5 or 7x7 layouts
Consider alternatives if:
- Higher max win: Sweet Bonanza (21,175x), Wanted Dead or a Wild (12,500x), or Dead or Alive 2 (111,111x)
- Enhanced fishing: Big Bass Splash (5,000x max, additional modifiers like Dynamite and Bazooka) or Big Bass Bonanza Megaways
- Multiplier systems: Gates of Olympus (tumble + accumulating orbs 2x-500x) or Sweet Bonanza (tumble + multiplier bombs 2x-100x)
- Classic expanding symbol: Book of Dead — similar 5x3 format, similar bonus frequency (1/177), plus Gamble Feature
- Extreme volatility: Dead or Alive 2 (111,111x max, 3 selectable bonus modes including High Noon Saloon with sticky multiplier wilds)
Other Pragmatic Play Games
Explore more guides from Pragmatic Play:
- Gates of Olympus — 96.50% RTP, High volatility, 5,000x max win
- Gates of Olympus 1000 — 96.50% RTP, Very High volatility, 15,000x max win
- Sweet Bonanza — 96.49% RTP, High volatility, 21,175x max win
- Sugar Rush — 96.50% RTP, Very High volatility, 5,000x max win
- Sweet Bonanza 1000 — 96.53% RTP, Very High volatility, 25,000x max win