Spinberry

Tuna Overload

Fishing slot with multiplier collection and a one-shot feature replay

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

93.25%

return to player

Volatility

—

variance

Max win

1,000×

top multiplier

Min bet

$0.10

per spin

Reels

10 lines

Player rating

4.5 ★

4 votes

DEMO Play free, no signup

Spinberry

Embed on your site

4.5 / 5

4 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 & RTP5/10

RTP 93.25% → 5.0/10

Volatility8/10imputed

imputed medium (unknown) → 8.0/10

Win Potential6/10

x1000.00 (1000×) → 6.0/10

Features7.5/10

9 features → 7.5/10

Game Mechanics5.9/10

f=9 r=5 p=10 → 5.9/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility8/10

0.1–250 (×2500) → 8.0/10

Provider Reputation5.3/10

provider avg 5.3 → 5.3/10

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: 57 — Tuna Overload by Spinberry

https://slotranker.com/spinberry/tuna-overload#score

How to cite

Slot Summary

Taking a Free Spins result or surrendering it for one replay is Tuna Overload's sharpest decision. Spinberry sets that choice beside a fisherman who collects visible tuna multipliers, a Bonus Bet that raises both stake and feature odds, and direct Bonus Buy access. The 93.25% RTP is notably central to the proposition, since the x1000 ceiling and ten-line format otherwise present a compact fishing slot.

How It Plays

Regular wins form from left to right across ten fixed paylines. Wilds substitute for ordinary symbols, while the fisherman and tuna values create a separate collection result.

Reel 'Em In activates when the fisherman appears with tuna multipliers. Their displayed values are summed, multiplied by the current stake, and paid together.

Theme & Atmosphere

Fish and Sea imagery frame the mechanic as a catch, making the fisherman a functional character rather than a purely decorative symbol on the reels.

The fishing subject also clarifies the collection idea: visible tuna carry values, and the fisherman converts the entire catch into one calculated award.

Fish Sea

Features & Win Potential

Wild and Scatter Symbol roles separate regular combinations from Free Spins entry. Multiplier values then shift attention from line payouts toward the fisherman collection event.

The Risk/Gamble game adds a post-win choice outside the fishing mechanic, while Respins apply specifically after the completed Free Spins feature.

Free Spins Multiplier Scatter Symbol Wild Symbol Respins Bonus Buy Bonus Bet Random multiplier Risk/Gamble (Double) game

Bonus & Free Spins

Three, four, or five Scatter Symbols award ten, 15, or 20 Free Spins. The fisherman collection remains active throughout those spins.

Bonus Bet doubles the stake and improves the Free Spins chance. Bonus Buy offers direct entry, while the later Respins choice can replace the completed result.

Spec sheet

Tuna Overload at a glance.

Identity

Slot nameTuna Overload

StudioSpinberry

Released9/17/2024

Math

SlotRanker Score57

RTP93.25%

Max win1,000×

Bet range$0.10 – $250.00

Player rating4.5 / 5 · 4 votes

Format

Reels5

Paylines10

Layout5x3

Features

Themes

Expected average based on this slot's 93.25% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$2.70

Cost per session$2.70

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 Tuna Overload? 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: Mediumassumed — not published for this slot

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 (93.25%), with wins capped at its top multiplier (1,000×).

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 Tuna Overload

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Casino availability depends on where you play from. We only show casinos that accept players from your country.

Compare Tuna Overload with other games

	Tuna Overload Score 57This game	Big Bass Hold and Spinner Megaways Score 89	Jawsome Score 89	Freaked Out Fish Score 88	Razor Returns Score 87
Identity
Studio	Spinberry	Reel Kingdom	Massive Studios	Blue Guru Games	Push Gaming
Released	9/17/2024	8/28/2023	3/8/2025	9/26/2024	7/4/2023
Math
RTP	93.25%	96.7%	96.65%	96.02%	96.55%
Volatility	—	High volatility	High volatility	High volatility	High volatility
Max win	1,000×	20,000×	50,000×	30,000×	100,000×
Format
Reels	5	6	6	7	5
Layout	5x3	6-9-9-9-9-6	6x6	7x7	5x5
Paylines	10	147456	Cluster Pays	0	40
Min bet	0.1	0.2	0.2	0.15	0.2
Max bet	250	250	100	45	100
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	—	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	✓	✓	✓	✓	✓
Bonus game	—	✓	—	—	✓
Respins	✓	✓	—	—	—

Every number is shown as a delta against Tuna Overload.

Comparing against

Tuna Overload

Spinberry

RTP

93.25%

Max win

1,000×

Score

Big Bass Hold and Spinner Megaways

+ Bonus Game− Respins

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