Spinberry

Extreme Tuna Overload

Spinberry fishing slot focused on sticky tuna collection

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

93.17%

return to player

Volatility

—

variance

Max win

1,000×

top multiplier

Min bet

$0.10

per spin

Reels

4608 lines

Player rating

3.6 ★

12 votes

DEMO Play free, no signup

Spinberry

Embed on your site

3.6 / 5

12 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 93.17% → 5.0/10

Volatility8/10imputed

imputed medium (unknown) → 8.0/10

Win Potential6/10

x1000.00 (1000×) → 6.0/10

Features10/10

16 features → 10.0/10

Game Mechanics8.7/10

f=16 r=5 p=4608 → 8.7/10

Context signals (tie-breakers)

Layout5/10

3x4x4x4x5 → 5.0/10

Bet Flexibility8/10

0.1–250 (×2500) → 8.0/10

Provider Reputation5.3/10

provider avg 5.3 → 5.3/10

Popularity0/10

synthetic proxy → 0.0/10

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: 59 — Extreme Tuna Overload by Spinberry

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

How to cite

Slot Summary

Arriving in 2025, Extreme Tuna Overload pairs a low 93.17% RTP with a compact x1000 ceiling, making its fishing feature system more important than raw top-end scale. Spinberry uses Cascading wins and sticky tuna symbols to create repeated collection attempts, then changes the rules during Free Spins by leaving the tuna locked for the round. The staggered grid keeps that collection chase visually tied to individual reels.

How It Plays

Cascading wins remove successful symbol groups and allow replacements to fall into the staggered grid, creating another chance within the same paid spin.

Tuna Link holds each landed tuna for three spins. Filling a complete reel collects the tuna values, so attention shifts from ordinary matches to reel completion.

Theme & Atmosphere

The Sea setting treats Fish as value-bearing targets rather than background decoration, making the fishing premise directly relevant to how prizes are collected.

Animals appear mainly through the tuna chase, while boats and fishing characters establish a working ocean setting instead of a broad tropical postcard.

Animals Fish Sea

Features & Win Potential

Sticky Symbols create a short collection window in the base game, while Cascading results can open new positions around tuna already held on the grid.

Respins and Multipliers extend the collection idea, and the optional Bonus Bet introduces a more direct route to gathering visible tuna values.

Free Spins Multiplier Scatter Symbol Wild Symbol Cascading Respins Bonus Game Multiway (+1024)Symbols collection (Energy)Additional Free Spins Bonus symbols Avalanche Bonus Bet Free Spins Multiplier Risk/Gamble (Double) game Sticky Symbols

Bonus & Free Spins

Free Spins remove the regular pay symbols and hold landed tuna until the round ends, concentrating the feature on collection rather than standard Cascading combinations.

Completed reels can gain a Free Spins Multiplier, and Additional Free Spins may extend the time available for more sticky tuna to enter the grid.

Spec sheet

Extreme Tuna Overload at a glance.

Identity

Slot nameExtreme Tuna Overload

StudioSpinberry

Released3/16/2025

Math

SlotRanker Score59

RTP93.17%

Max win1,000×

Bet range$0.10 – $250.00

Player rating3.6 / 5 · 12 votes

Format

Reels5

Paylines4608

Layout3x4x4x4x5

Features

Themes

Expected average based on this slot's 93.17% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$2.73

Cost per session$2.73

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 Extreme 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 (93.17%), 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 Extreme 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 Extreme Tuna Overload with other games

	Extreme Tuna Overload Score 59This game	Freaked Out Fish Score 88	Razor Returns Score 87	Fish Prawn Crab Bonanza Score 87	Bass Cash Christmas X UP Score 87
Identity
Studio	Spinberry	Blue Guru Games	Push Gaming	Advant Play	Alchemy Gaming
Released	3/16/2025	9/26/2024	7/4/2023	7/29/2024	11/25/2024
Math
RTP	93.17%	96.02%	96.55%	97.02%	96.2%
Volatility	—	High volatility	High volatility	Medium/High	High volatility
Max win	1,000×	30,000×	100,000×	20,000×	—
Format
Reels	5	7	5	6	5
Layout	3x4x4x4x5	7x7	5x5	6x4	5x5
Paylines	4608	0	40	25	10
Min bet	0.1	0.15	0.2	0.1	0.1
Max bet	250	45	100	10	20
Features
Progressive	—	—	—	—	—
Wild symbol	✓	—	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	✓	✓	✓	✓	✓
Bonus game	✓	—	✓	✓	✓
Respins	✓	—	—	—	✓

Every number is shown as a delta against Extreme Tuna Overload.

Comparing against

Extreme Tuna Overload

Spinberry

RTP

93.17%

Max win

1,000×

Score

− Wild− Bonus Game− Respins

Fish Prawn Crab Bonanza

Bass Cash Christmas X UP

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