Oros Gaming

Big Mouth Fishin

Slots Video Slots Nature Fish Sea Pirate

Fishing slot connecting line wins, respins, and jumbo symbols

SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals, and it cannot be bought.

How this score is built

RTP

96.08%

return to player

Volatility

Medium volatility

variance

Max win

5,000×

top multiplier

Min bet

$0.10

per spin

Reels

25 lines

Player rating

4.6 ★

1 votes

DEMO Play free, no signup

Oros Gaming

Embed on your site

4.6 / 5

1 ratings

User ratings are shown separately from the Slot Score unless stated otherwise.

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Payouts & RTP9/10

RTP 96.08% → 9.0/10

Volatility8/10

medium → 8.0/10

Win Potential7.4/10

x5000.00 (5000×) → 7.4/10

Features10/10

20 features → 10.0/10

Game Mechanics6.4/10

f=20 r=5 p=25 → 6.4/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.1–50 (×500) → 6.0/10

Provider Reputation7.5/10

provider avg 7.5 → 7.5/10

Popularity2.5/10

synthetic proxy → 2.5/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Cite this score

SlotRanker Score: 73 — Big Mouth Fishin by Oros Gaming

https://slotranker.com/oros-gaming/big-mouth-fishin#score

How to cite

Slot Summary

Released on October 31, 2023, Big Mouth Fishin combines Oros Gaming's fishing premise with two distinct departures from its 25-payline base game. Fish symbols lead toward a Link Win respin sequence, while bobbers open Free Spins with a recurring 3x3 Mega Symbol. A Win Booster provides another route toward the respin feature, giving the slot several ways to shift from line wins into collection play.

How It Plays

The base game presents 5 reels and 25 paylines, with Wild Symbols and fish appearing often enough to keep the two feature routes visible during ordinary spins.

The decisive split is between collecting at least 6 fish for Link Win and landing 3 bobbers for Free Spins, so different symbols pursue different outcomes.

Theme & Atmosphere

Fish, Nature, and Sea themes define the setting through angling rather than underwater fantasy, keeping the focus on catches, equipment, and prize fish.

Pirate elements add a treasure-seeking edge, but the tone remains closer to a casual fishing trip than a story-led voyage across the open sea.

Nature Fish Sea Pirate

Features & Win Potential

Link Win uses a Hold and Win structure: 3 initial respins are awarded, and each newly landed fish resets the remaining-spin count.

The Win Booster adds more fish to the reels, while Sticky Wilds and the 3x3 Mega Symbol create different forms of persistent reel coverage.

Bonus & Free Spins

Three bobbers activate Free Spins, and a 3x3 Mega Symbol appears on every free spin. Link Win instead starts from 6 or more fish and uses resetting respins.

Spec sheet

Big Mouth Fishin at a glance.

Identity

Slot nameBig Mouth Fishin

StudioOros Gaming

Released10/31/2023

Math

SlotRanker Score73

RTP96.08%

VolatilityMedium volatility

Max win5,000×

Bet range$0.10 – $50.00

Player rating4.6 / 5 · 1 votes

Format

Reels5

Paylines25

Layout5x3

Expected average based on this slot's 96.08% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$1.57

Cost per session$1.57

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

How long could a bankroll last on Big Mouth Fishin? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Bankroll ($)Bet per spin ($)Speed

Volatility tier: Medium

Running simulation…

How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (Medium). The model is calibrated so the average return equals this slot's published RTP (96.08%), with wins capped at its top multiplier (5,000×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Where to play Big Mouth Fishin

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Compare Big Mouth Fishin with other games

	Big Mouth Fishin Score 73This game	Kingfisher of the Caribbean Score 77	Cash Falls Island Bounty Score 74	Monkeys Go Bananas MultiMax Score 71	Big Bass Hold and Spinner Megaways Score 89
Identity
Studio	Oros Gaming	Wishbone Games	Light & Wonder	Yggdrasil Gaming	Reel Kingdom
Released	10/31/2023	2/3/2025	5/3/2023	5/23/2024	8/28/2023
Math
RTP	96.08%	96.25%	95.92%	94%	96.7%
Volatility	Medium volatility	Medium volatility	High volatility	High volatility	High volatility
Max win	5,000×	6,000×	21,025×	10,000×	20,000×
Format
Reels	5	5	5	5	6
Layout	5x3	5x3	5x4	5x3	6x7
Paylines	25	20	4608	243	147456
Min bet	0.1	0.2	0.1	0.1	0.2
Max bet	50	40	10	10	250
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	—	✓	—	✓	✓
Bonus game	✓	✓	—	—	✓
Respins	—	✓	—	—	✓

Every number is shown as a delta against Big Mouth Fishin.

Comparing against

Big Mouth Fishin

Oros Gaming

RTP

96.08%

Max win

5,000×

Score

Kingfisher of the Caribbean

+ Multiplier+ Respins

Cash Falls Island Bounty

Monkeys Go Bananas MultiMax

+ Multiplier− Bonus Game

Big Bass Hold and Spinner Megaways

+ Multiplier+ Respins

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