Five reels and three rows stack up a fishing scene with a horror and zombie twist. Ten paylines run left to right, and a win needs at least two matching symbols on one of them. Fish symbols carry a random money value on every spin, so the figure changes each time the reels stop. The symbol set includes Zombie Van, Axe, Backpack and the card symbols A, K, Q and J.
Three or more SCATTER symbols start the bonus, and Super Free Spins can too. Two WILD FISHERMAN trackers sit above and below the reels, one blue and one red. Each WILD picks up the money value of visible fish. Every fourth WILD of one colour in a meter adds spins and raises the multiplier. Dynamite Spin and Hook random events can also strike.
Big Bass Halloween 3
Check these figures before your first spin, when comparing the RTP and top win.
| What it means | In plain terms |
|---|---|
| Game provider | Pragmatic Play |
| RTP | 96.50% |
| Volatility | High |
| Grid | 5x3 |
| Maximum win, times bet | x5,000 |
| Top win in money | A$1,875,000 |
| Release date | 15/10/2025 |
Five stages in order
The usual worry is not knowing what each bet and feature does before the first spin.
Each spin of the 5x3 grid starts with the bet, set from A$0.10 up to A$375. Examples here use A$1 and A$5, and the Ante Bet adds 1.5x to each stake.
Matching symbols landing on a payline from the leftmost reel form a win. Two matching symbols are enough to pay, as the paytable below shows.
Fish symbols show random MONEY values on every spin, visible but not collectible in the base game. Money Collect and Multiplier come into play once Free Spins begin.
Landing three, four or five SCATTER symbols starts Free Spins with 15, 20 or 25 spins. Buy Free Spins is the paid route instead, at 100x the total bet.
Every spin takes the chosen bet from the balance, wins or not. Set the budget before the first spin, because how often Free Spins arrive cannot be known in advance.
Each buy costs a multiple of the bet, so at A$5 the Free Spins buy is A$500 and the Super Free Spins buy is A$1,500.
| Paid extra | Price | RTP |
|---|---|---|
| Buy Free Spins at 100x | x100 · A$500 | – |
| Buy Super Free Spins 300x | x300 · A$1,500 | – |
Return to player is the share of each stake the game pays back over time, counted per A$100 staked. The version Betbolt runs is shown in the game rules.
| RTP setting | RTP | Factory setting |
|---|---|---|
| Variant 1 | 96.50% | Yes |
Game screens
A common worry is not recognising the WILD FISHERMAN trackers during a round.
Bonus rules
Not sure how the bonus starts, or how the WILD meters count?
Three, four or five SCATTER symbols land and bring 15, 20 or 25 spins. Blue and red WILD FISHERMAN trackers flank the reels. Each WILD collects the visible MONEY values. Every fourth WILD of one colour adds 10 spins and lifts the multiplier from 1x to 2x, 3x and 10x.
Base GameBonus spins
Three or more SCATTER symbols land and start Super Free Spins with the same rules as Free Spins. Retriggering needs only three WILD FISHERMAN of any colour across both trackers combined, not four of one colour per meter. Total wins are capped at 5000x the total bet.
Base GameSuper bonus spins
Spins land on a 5x3 grid, with 10 paylines running left to right. Fish symbols show random MONEY values on every spin. They are visible but not collectible in this mode.
Game lobby10 paylines
Demo Mode
Most players wonder whether a practice round will cost them any money at all.
Each demo spin runs on the reels with no money in play and pays nothing. Real spins need a Betbolt Casino account and a player of legal age (18+).
Play for moneyReels stop at random on every spin, so nobody can know in advance how often the Free Spins round comes in Big Bass Halloween 3. One session can bring it early or late. The result of a session is random, whatever the RTP shows.
Each spin on the reels runs on one RTP version, but the reels never show which one. Which version Betbolt Casino runs is shown only in the game rules, so open them before your first spin and check the RTP listed there.
Winning symbols on the reels can add up to x5,000 the bet, and that is the ceiling of the game. The ceiling is reached very rarely. Nothing on the reels tells you when a session will get there, so treat it as the limit of the maths, not a target.
Play is for adults aged 18+ only. For help in Australia, call the National Gambling Helpline on 1800 858 858, or self-exclude with BetStop, the national self-exclusion register.
Decide the amount you can afford to lose before the first spin, and keep it separate from bills and rent.
Pick your stopping point before the session starts, and keep it even after a big win from the Free Spins.
Set deposit and loss limits in your account before the reels start, so a cap is already in place when you bet.
Take a break when the spins stop being fun, and self-exclude through BetStop if the urge to chase returns.
Also reviewed
This block settles which other slots this site reviews, so you can compare before you play.
Big Bass Halloween 3
The worry most players bring is about cost and odds, so this block answers both plainly.
Each spin on the reels returns 96.50% of the stake over a very long run, so A$100 staked comes back as A$96.50 on average. This slot has one RTP version. A short session can end well above or below that figure.
Buying from the left panel gives you Free Spins at 100x the total bet, or Super Free Spins at 300x. At the top example bet of A$5 those cost A$500 and A$1,500. Turning on the Ante Bet at 1.5x disables the buy.
Three, four or five SCATTER symbols on the reels award 15, 20 or 25 free spins. Each extra SCATTER adds five spins to the start, so the count of symbols decides how long the mode runs.
Spins on the reels can pass with small wins before a larger one lands. High volatility means results swing more than in a low volatility game, and how often the free spins come cannot be known in advance.
Big Bass Halloween 3 has a maximum win of x5,000 the bet, and its 96.50% RTP matches Big Bass Blast, Big Bass Football Bonanza and Big Bass Trophy Catch. Big Bass Splash 1000 differs most, with 96.52% RTP and a maximum win of x25,000.
Start at the minimum stake of A$0.10 and read the paytable, which lists payouts for the A$1 bet. Watch a few base game rounds to see how the Fish symbols show random MONEY values before you raise the stake.
Content editor and former player support team leader
I write and check the responsible gaming section and the verification steps a player goes through, so each answer matches what the account screens show.
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