Fatter Fish Festival Slot Review
Five tin cans sit strung along a mossy ledge above the reels, each with a little fish poking out, one of them gold. The frame below is lashed together from wooden poles and green rope, weeds growing along the bottom rail, like a fisherman’s raft that sank and stayed. It’s a cheerful sort of shipwreck.
Fatter Fish Festival hides a slot with real moving parts inside that splashing cartoon. Where most collector games deal you the same round every time, this one deals you a different one depending on which reels the Fisherman lands on, and that single twist is the whole reason to cast a line here. It comes from Wishbone, a studio that keeps returning to the water, and the tackle box is genuinely full.
It runs on a 5×4 grid with 20 fixed paylines, a 96.25% RTP and medium volatility, with stakes from 0.20 to 40.00. Wishbone’s other work includes Poseidon’s Rage, Splash of Gold and Kingfisher On Wheels, so the water is familiar territory for them.
Base Game & Features
This is a straightforward payline slot underneath the paint. Wins run left to right across 20 fixed lines, and the number of lines can’t be adjusted. If multiple winning combinations land on a single payline, only the highest pays, and payline wins and bonus wins can both arrive on the same spin.

Nothing here is exotic, which leaves the symbols to do the talking. The premium end of the paytable is all fishing tackle, and the values are modest at the top:
- Boat – 5 pays 5x, 4 pays 1x, 3 pays 0.5x your bet
- Fishing Rod – 5 pays 4x, 4 pays 0.8x, 3 pays 0.4x
- Lure – 5 pays 3x, 4 pays 0.6x, 3 pays 0.3x
- Worm Can – 5 pays 2x, 4 pays 0.4x, 3 pays 0.2x
- A, K, Q, J, 10 – 5 pays 1x, 4 pays 0.2x, 3 pays 0.1x
Those are small numbers, and they say plainly that the paytable isn’t where this game keeps its money. The bonus round is.
Wild symbols substitute for everything except scatters and special symbols, and they can form their own winning combinations too. It’s a standard wild with no extras attached.
The Fisherman is the scatter, and it’s the symbol the whole game bends around. Scatters can land on any reel, and five of them anywhere award the maximum win of 6 000x the bet outright, in which case the bonus doesn’t trigger.
That 6 000x is also the ceiling on everything else: any bonus round that reaches it ends there and pays the cap. Total payout on any spin is the sum of all payline wins, and bonus wins sit on top of that.

Hit frequency sits at 28.84%, so roughly three spins in ten produce something. With medium volatility and a paytable this flat, those hits will mostly be small change while you wait for the Fisherman to show up.

Fatter Fish Festival Bonus Spins & Reel Enhancements
When a scatter lands, it can trigger that reel’s Feature. The scatters on reels 1, 2, 4 and 5 each carry a unique Enhancement, and reel 3 holds the Super Feature.
Trigger one or more of the four standard Features in a single spin and you get 10 Bonus Spins for the first, plus 3 more for each extra Feature triggered, with those Enhancements applied from the off. During Bonus Spins, Fish symbols land as Value Symbols worth anywhere from 0.20x to 1,000x your bet, and the scatter turns Collector, gathering every value in view. Which values you actually bank depends on which Enhancements are running.
Each Enhancement has a starting value and a cap, and the Special symbols that land during the round decide where in that range you finish:
- Multiplier (reel 1) – starts x2, climbs to x5, multiplies every Value Symbol at collection
- Adder (reel 2) – starts 1x stake, climbs to 5x stake, adds its value to every Value Symbol
- Super Feature (reel 3) – all Enhancements active, with a chance to raise their values first
- Spreader (reel 4) – starts 1, climbs to 5, adds adjacent Value Symbols at collection
- Respin (reel 5) – each Heart is a chance, and the Collect symbol locks the grid in place
Multiplier Enhancement – Reel 1
Starts at x2 and upgrades by 1 for every Special X symbol that lands, up to x5. It multiplies the value of each Value Symbol at collection, so a full stack of fish through a x5 multiplier is where the big numbers live.
Adder Enhancement – Reel 2
Starts at 1x and adds 1x your stake for every Special + symbol, capped at 5x the stake. That value gets added to every Value Symbol collected, which matters most when a lot of small fish are in view.
Super Feature – Reel 3
The reel 3 scatter switches everything on at once. All Enhancements run for the duration, and before the Bonus Spins begin there’s a chance to increase the Enhancement values. It’s the round the rest of the game is building towards, and once it’s triggered nothing can retrigger.
Spreader Enhancement – Reel 4
Starts at 1 and upgrades by 1 per Special symbol, to a maximum of 5. When a Collect symbol appears, this Enhancement adds extra Value Symbols to positions adjacent to those already in view, over regular symbols only.
Line wins pay first, then the Collector takes everything, new fish included. The added symbols never land over other Value Symbols or Collectors.
Respin Enhancement – Reel 5
Heart symbols each add a chance to the display, with the first awarded automatically when the Feature triggers. When a Collect symbol lands, it and all Value Symbols stick while the remaining positions spin independently.
Any new fish sticks too; every spin that lands nothing burns a chance. The Respin ends when the Hearts run out or every position fills, and there are no paylines active while it runs. After it finishes, the number of chances resets to where the last session started.

Enhancements that aren’t active on entry can still trigger mid-round, awarding 3 extra Bonus Spins each. Once a Feature is active it can’t trigger again in that round, and once the Super Feature fires, no Features retrigger at all. All bets during the bonus match the triggering spin.
Our Honest Verdict
Overall Rating: 7.6/10
Playing this is a long, splashy wait for a bonus round that arrives wearing a different outfit each time. That’s the reason to choose it: no two rounds here are the same game, and landing the Super Feature feels like an event rather than a re-skin.
The Enhancement system is the strength. Making the round you get depend on which reels the Fisherman hit is a genuinely clever bit of design, and the Respin, with everything sticking and the Hearts burning down, is the best of the five.
The weakness is everything either side of it. The base paytable pays 5x for five boats, so the spins between bonuses are near-silent, and the 6 000x cap sits low for a game whose Value Symbols run to 1,000x. The ceiling will arrive exactly when the round is finally going well.
It suits players who like a collector with moving parts and don’t mind fishing for a while between bites. Anyone after a base game that pays its way while they wait should cast elsewhere, but there’s plenty in this particular tin.
Fatter Fish Festival FAQs
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What is the RTP of Fatter Fish Festival?
96.25%. That’s the total expected return, so it’s the figure to quote rather than any base-only number. -
Is Fatter Fish Festival high volatility?
No, it’s a medium volatility slot, with a hit frequency of 28.84%, so wins land fairly regularly even if most of them are small. -
How do you trigger the Bonus Spins in Fatter Fish Festival?
The Fisherman scatter opens it, and that symbol can appear on any reel. Triggering one or more of the standard Features in a single spin awards 10 Bonus Spins, plus 3 more for every extra Feature that landed in the same spin. -
What does the Super Feature do in Fatter Fish Festival?
It’s the reel 3 scatter, and it activates all four Enhancements at once for the Bonus Spins, with a chance to increase the Enhancement values before the round begins. Once it’s triggered, no Features can be retriggered. -
Can the Bonus Spins retrigger in Fatter Fish Festival?
Yes, partially. Enhancements that weren’t active on entry can trigger during Bonus Spins, awarding 3 extra spins each, though a Feature can’t trigger twice in the same round, and nothing retriggers once the Super Feature is live. -
What is the maximum win on Fatter Fish Festival?
6 000x your bet. Five scatters anywhere in the base game award it outright, and it’s also the cap on any Bonus Spins round, which ends the moment the limit is reached. -
What are the betting limits on Fatter Fish Festival?
Stakes run from 0.20 to 40.00 per spin across the game’s 20 fixed paylines on a 5×4 grid. -
Who makes Fatter Fish Festival?
Wishbone. Their other titles include Poseidon’s Rage, Splash of Gold and the Kingfisher series. Fatter Fish Festival’s release date is 10 December 2025.

