Thunderkick

Big Fin Bay

RARE Slots Video Slots Fish Action & Adventure Sea

Play Big Fin Bay slot by Thunderkick for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.

Only 0.06% of slots combine Expanding Reels and Mystery Symbols.

SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals or paid placement.

How this score is built

RTP

96.14%

return to player

Volatility

High volatility

variance

Max win

15,040×

top multiplier

Min bet

$0.10

per spin

Reels

5040 lines

Player rating

4.8 ★

11 votes

DEMO Play free, no signup

Thunderkick

Embed on your site

4.8 / 5

11 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 96.14% → 9.0/10

Volatility9/10

high → 9.0/10

Win Potential8.4/10

x15040.00 (15040×) → 8.4/10

Features10/10

18 features → 10.0/10

Game Mechanics7.4/10

f=18 r=6 p=5040 → 7.4/10

Context signals (tie-breakers)

Layout5/10

6x4 → 5.0/10

Bet Flexibility2/10

0.1–1 (×10) → 2.0/10

Provider Reputation7/10

provider avg 7.0 → 7.0/10

Popularity7.5/10

synthetic proxy → 7.5/10

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: 81 — Big Fin Bay by Thunderkick

https://slotranker.com/thunderkick/big-fin-bay#score

How to cite

Spec sheet

Big Fin Bay at a glance.

Identity

Slot nameBig Fin Bay

StudioThunderkick

Released3/17/2021

Math

SlotRanker Score81

RTP96.14%

VolatilityHigh volatility

Max win15,040×

Bet range$0.10 – $1.00

Player rating4.8 / 5 · 11 votes

Format

Reels6

Paylines5040

Layout6x4

Expected average based on this slot's 96.14% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$1.54

Cost per session$1.54

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 Fin Bay? 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: High

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 (High). The model is calibrated so the average return equals this slot's published RTP (96.14%), with wins capped at its top multiplier (15,040×).

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.

Compare Big Fin Bay with other games

	Big Fin Bay Score 81This game	Broadsiders Score 86	Catch 22 - Frozen Fortune Score 86	Lucky Barrel Tavern Score 86	Net Gains Score 84
Identity
Studio	Thunderkick	Massive Studios	Realistic	Belatra Games	Relax Gaming
Released	3/17/2021	1/27/2025	12/5/2024	6/27/2024	12/6/2022
Math
RTP	96.14%	96.62%	96.13%	96.14%	96.1%
Volatility	High volatility	—	Medium/High	High volatility	High volatility
Max win	15,040×	30,000×	12,000×	12,000×	15,000×
Format
Reels	6	7	6	6	6
Layout	6x4	7x7	6x5	6x4	6x4
Paylines	5040	Cluster Pays	4096	Pay Anywhere	4096
Min bet	0.10	0.10	0.10	0.00	0.10
Max bet	1.00	100.00	10.00	0.00	60.00
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	—	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	—	✓	✓	✓	✓
Bonus game	—	—	✓	—	—
Respins	✓	—	✓	—	—

Every number is shown as a delta against Big Fin Bay.

Comparing against

Big Fin Bay

Thunderkick

RTP

96.14%

Max win

15,040×

Score

+ Multiplier− Respins

Catch 22 - Frozen Fortune

+ Multiplier+ Bonus Game

+ Multiplier− Wild− Respins

+ Multiplier− Respins

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