NetEnt

Finn and the Swirly Spin

RARE Slots Video Slots 3D Slots Fantasy Action & Adventure Magic Gems Star Clover Treasure Cartoon Leprechaun Lucky Dragon Irish

First Finn series slot with a persistent spiral-grid unlock system

Only 0.03% of slots feature Swirly Spin.

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

96.62%

return to player

Volatility

Low volatility

variance

Max win

—

top multiplier

Min bet

$0.10

per spin

Reels

5 lines

Player rating

4.9 ★

16 votes

DEMO Play free, no signup

NetEnt

Embed on your site

4.9 / 5

16 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 96.62% → 9.0/10

Volatility6/10

low → 6.0/10

Win Potential—

no data

Features10/10

21 features → 10.0/10

Game Mechanics5.5/10

f=21 r=5 p=5 → 5.5/10

Context signals (tie-breakers)

Layout5/10

5x5 → 5.0/10

Bet Flexibility8/10

0.1–200 (×2000) → 8.0/10

Provider Reputation7.2/10

provider avg 7.2 → 7.2/10

Popularity5.2/10

search demand p61 + proxy blend (70/30) → 5.2/10

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: 75 — Finn and the Swirly Spin by NetEnt

https://slotranker.com/netent/finn-and-the-swirly-spin#score

How to cite

Slot Summary

A taste for low-volatility play, persistent unlocks, and an unconventional grid is the clearest reason to choose Finn and the Swirly Spin. NetEnt sends winning symbols around a spiral 5x5 layout, where avalanches move the Free Spins Key toward the center and successful combinations can create or explode Wilds. The title began the Finn series and turns accumulated keys into a choice among four free-spin modes, giving its lighter math profile a continuing objective.

How It Plays

Every grid position belongs to a spiral path. Winning symbols are removed, and the surviving symbols follow the arrows toward lower-numbered spaces before replacements arrive.

Wild behavior changes the removal pattern. A win without a Wild creates one, while a contributing Wild explodes and clears the positions immediately above, below, and beside it.

Theme & Atmosphere

Finn and the Swirly Spin mixes Irish, Leprechaun, Clover, Lucky, Magic, Dragon, and Treasure themes through a cartoon fantasy centered on Finn and his key.

Its separate free-spin destinations give the setting several distinct fantasy locations, while the persistent key connects those places to the main grid rather than simple scene changes.

Fantasy Action & Adventure Magic Gems Star Clover Treasure Cartoon Leprechaun Lucky Dragon Irish

Features & Win Potential

Four Random bonus symbols can alter a settled grid by adding Wilds, removing symbols, creating a guaranteed line, or transforming lower-paying symbols before wins are evaluated.

The Symbols collection system records keys across sessions. Each completed trip to the center adds a key, which opens further Free Spins Mode Choosing options.

Bonus & Free Spins

Reaching the center with the Free Spins Key awards a Bonus Game and presents the currently unlocked free-spin modes. Each mode applies a different Random Feature.

The initial mode needs one collected key, while later choices require additional keys. The key meter persists after the game closes, preserving access already earned.

Spec sheet

Finn and the Swirly Spin at a glance.

Identity

Slot nameFinn and the Swirly Spin

StudioNetEnt

Released11/1/2017

Math

SlotRanker Score75

RTP96.62%

VolatilityLow volatility

Max win—

Bet range$0.10 – $200.00

Player rating4.9 / 5 · 16 votes

Format

Reels5

Paylines5

Layout5x5

This game is searched most in United Kingdom, United States, and Finland.

Expected average based on this slot's 96.62% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$1.35

Cost per session$1.35

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 Finn and the Swirly Spin? 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: Low

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 (Low). The model is calibrated so the average return equals this slot's published RTP (96.62%), 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 Finn and the Swirly Spin

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Compare Finn and the Swirly Spin with other games

	Finn and the Swirly Spin Score 75This game	Gold O'Plenty Score 76	Charms and Treasures Score 58	Book of Fortune Clover Score 63	Irish Crown Score 77
Identity
Studio	NetEnt	High 5 Games	Betsoft	Clawbuster	Pragmatic Play
Released	11/1/2017	3/10/2022	4/27/2023	2/13/2025	12/30/2024
Math
RTP	96.62%	96%	94.03%	95%	96.52%
Volatility	Low volatility	High volatility	High volatility	Medium volatility	Medium volatility
Max win	—	10,174×	1,414×	10,000×	5,000×
Format
Reels	5	5	5	5	5
Layout	5x5	5x3	5x3	5x3	5x3
Paylines	5	20	50	10	20
Min bet	0.1	0.2	0.25	0.1	0.2
Max bet	200	400	200	20	5
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	—	✓	✓	✓
Multiplier	—	✓	—	—	—
Bonus game	✓	✓	—	—	✓
Respins	—	—	—	—	✓

Every number is shown as a delta against Finn and the Swirly Spin.

Comparing against

Finn and the Swirly Spin

NetEnt

RTP

96.62%

Max win

—

Score

+ Multiplier− Scatter

Book of Fortune Clover

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01How does the Swirly Spin mechanic work?

After a win, contributing symbols disappear and the remaining symbols move along the grid’s numbered spiral path. New symbols then enter the empty positions.

02How are free spins triggered?

Wins and avalanches move the persistent Free Spins Key toward the center. Free spins begin when the key reaches that position after the avalanches finish.

03What choices are available during free spins?

The game offers four free-spin modes linked to its Random Features. Accumulated keys determine which modes are unlocked for selection.

04What is the RTP of Finn and the Swirly Spin?

NetEnt publishes an RTP of 96.62% for Finn and the Swirly Spin.

Series