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Finn and the Swirly Spin Slot Review
NetEnt4.0/5 · Great
Reviewed by Brett Chatz, Senior Casino Reviewer · Updated July 2026 · 18+Ad disclosure: we may earn a commission when you visit a casino through our links. Commissions never influence rankings or scores — here's how we make money. 18+.
Play Finn and the Swirly Spin Slot Free Demo
Finn and the Swirly Spin Slot is NetEnt's whimsical 2017 release that threw out everything we thought we knew about slot grids. Instead of symbols falling from above, they spiral inward from the outer edges of a 5x5 grid toward a central drain point. It's genuinely different. With an RTP of 96.62%, medium volatility, and a max win of 500x your stake, this is a slot that prioritizes creative mechanics over massive payout potential. Try the free demo above to see the swirl in action before committing real money.
A Slot That Chose Charm Over Carnage — And That's Either Perfect or a Dealbreaker
Finn and the Swirly Spin is the slot equivalent of a warm pub with a fiddle player in the corner. It's cozy. It's inventive. And it absolutely will not blow your bankroll to smithereens in either direction. If you need 10,000x potential to feel alive, close this tab immediately. This game caps at 500x, and most sessions will land somewhere far below that ceiling. But here's who should stay: anyone fatigued by hypervolatile slots that eat 200 spins without a pulse. If you enjoyed the cluster-style creativity of NetEnt's Aloha! Cluster Pays or the Irish-themed gentleness of Rainbow Riches Megaways but wished it were calmer, Finn is your territory. The spiral mechanic alone makes it worth experiencing at least once.
How It Actually Plays
Forget paylines. Symbols enter from the top-left corner and swirl clockwise around the 5x5 grid toward the center. When you land a winning combination (clusters of matching symbols), those symbols vanish and remaining symbols continue their spiral journey inward. New symbols fill the gaps from the outside. This is NetEnt's take on avalanche mechanics, but the spiral movement means winning symbols can trigger chain reactions that shift everything toward the center.
The center position is key — literally. A key symbol can appear, and when wins push it to the center drain, it unlocks one of four random features: Starfall Wilds, Irish Luck, Lava Lair, or Golden Pot. Each has its own mini free spins round with distinct characteristics. The math here is straightforward: medium volatility means you'll get frequent small-to-mid wins. Sessions feel active. You're rarely staring at dead spins for long stretches. But the 500x max win means even your best rounds feel like solid doubles rather than life-changing multipliers. A big hit typically comes from chaining multiple avalanche wins within a single spin, especially during free spins with enhanced features.
The Bonus Round
The bonus triggers when you collect enough keys during base game play. Keys appear on the grid as special symbols, and when avalanche wins push a key to the center drain point, you enter one of four free spins bonus modes. In our testing, key collection triggered a bonus feature roughly every 80-100 spins, though this varies significantly.
The four bonus rounds escalate in potential: Starfall Wilds adds random wilds, Irish Luck provides horizontal/vertical wild lines, Lava Lair transforms symbols into wilds and destroyers, and Golden Pot is the premium round with the highest win ceiling. You typically unlock them sequentially. Each round gives you a set of free spins where the enhanced features fire more frequently. Payouts during bonus rounds in our sessions ranged from 15x to around 180x, with most landing in the 30-70x range. Don't expect fireworks — expect a steady, satisfying bump.
What 100 Spins Looks Like
- Starting balance: £100 at £1 stakes
- Spins 1-25: Frequent small wins from avalanche chains. Balance at £94. Nothing dramatic, but the spiral kept things moving.
- Spins 26-50: A key reached the center on spin 33, triggering Starfall Wilds. Bonus paid 42x. Balance jumped to £128.
- Spins 51-75: Dry patch with scattered 2-5x wins. Balance drifted to £109.
- Spins 76-100: Another key collection near spin 88. Irish Luck bonus paid 28x. Ended at £119.
- Final balance: £119 — a 19% profit.
- Without the bonuses, we'd have ended at roughly £67. The base game bleeds slowly, and those feature rounds are essential for staying afloat.
- Biggest single-spin win: 42x during Starfall Wilds bonus.
- Dead spins (zero return): Roughly 35 out of 100.
Is It Worth Playing?
- Play if: You want a genuinely unique mechanic that doesn't exist in other slots. You have a £50-£200 session bankroll at low-to-mid stakes and you'd rather grind steady returns than chase a single monster hit.
- Play if: You're a UK players fan of Irish-themed slots but tired of the same old five-reel format.
- Skip if: You need max win potential above 1,000x to stay interested. 500x is the hard ceiling here.
- Skip if: You prefer high-volatility slots where one spin can return your entire session's losses. Finn doesn't work that way.
How It Compares
| Slot | Volatility | Max Win | Key Difference |
|---|---|---|---|
| Finn and the Swirly Spin | Medium | 500x | Unique spiral grid with key collection mechanic |
| Aloha! Cluster Pays | Medium | 500x | Cluster pays on standard grid, simpler but similar RTP |
| Rainbow Riches Megaways | High | 12,000x | Far higher ceiling but much more volatile sessions |
| Leprechaun Goes to Hell | Medium-High | 1,280x | Darker Irish theme, higher max win, more aggressive variance |
| Finn's Golden Tavern | Low-Medium | 500x | The sequel — similar spiral, even lower volatility |
Strategy Tips
- Prioritize session length over bet size. With a 500x cap, betting huge won't unlock hidden potential. Keep stakes at 1-2% of your bankroll per spin so you survive long enough to trigger multiple bonus rounds.
- Understand the key path. Watch where keys land on the spiral. Wins near the key's position push it closer to center. You can't control this, but understanding it helps you appreciate when you're close to a trigger.
- Don't chase the Golden Pot round. It's the hardest to unlock and while it pays best, the other three features still deliver meaningful returns. Avoid the casino bonus mistakes of extending sessions beyond your budget chasing one specific outcome.
- Use this slot to clear wagering requirements. Medium volatility and 96.62% RTP make it a reasonable choice for working through a welcome bonus. The steady return rate won't nuke your bonus balance in 50 spins.
- Test on mobile first. The spiral mechanic actually looks better on portrait-mode screens. Check our recommended mobile casinos for smooth performance.
Where to Play Finn and the Swirly Spin Slot
You'll find Finn at most reputable NetEnt-powered operators. We recommend checking our best slots sites for verified casinos carrying this title with fair terms. If you're new and want to try it risk-free, look for a no deposit bonus that allows NetEnt slots. For fast cashouts when you do win, stick to our vetted fast payout casinos — nobody wants to wait five days for a 200x win.
The Bottom Line
Finn and the Swirly Spin is the most inventive medium-volatility slot NetEnt ever made, even if it won't make you rich. The spiral mechanic genuinely changes how you watch and think about each spin. The 500x max win is modest by 2024 standards, but in 2017 this was bold design work, and it still holds up as a satisfying, low-stress session slot. If you value creativity and consistent play over raw power, Finn deserves a spot in your rotation.
Key Stats
- Provider: NetEnt
- RTP: 96.62%
- Volatility: Medium
- Max Win: 500x
- Reels: 5x5 grid
- Bet Range: £0.01 – £200
- Features: Wilds, free spins, spiral reel, star wild, random features, key collection, avalanche
Responsible Gambling
Gambling should be entertainment, not income. Set a session budget before you start and stop when you reach it — win or lose. If you feel your play is becoming difficult to control, visit our responsible gambling page or contact BeGambleAware.org for free, confidential support.
Where to play Finn and the Swirly Spin Slot
Finn and the Swirly Spin Slot FAQ
How does the spiral reel mechanic work in Finn and the Swirly Spin?
Instead of symbols dropping from above, they enter the 5x5 grid from the top-left corner and swirl clockwise toward the center. When winning clusters are removed, remaining symbols continue spiraling inward and new symbols fill from the outside edges, creating chain reactions similar to avalanche mechanics but with a unique rotational flow.
What are the four bonus rounds in Finn and the Swirly Spin?
The four bonus rounds are Starfall Wilds (random wilds added to the grid), Irish Luck (horizontal and vertical wild lines), Lava Lair (symbols transformed into wilds and destroyers), and Golden Pot (the premium round with the highest payout potential). They are unlocked through the key collection mechanic during base play.
What is the maximum win in Finn and the Swirly Spin Slot?
The maximum win is 500x your total stake. This is modest compared to many modern slots, reflecting the game's medium volatility profile. Big wins typically come from chaining multiple avalanche wins during free spins rounds rather than from a single symbol combination.
How often does the bonus feature trigger in Finn and the Swirly Spin?
In our testing, the bonus feature triggered approximately every 80-100 spins, though this can vary considerably between sessions. The trigger relies on a key symbol being pushed to the center drain point of the spiral grid through avalanche wins, which adds an element of anticipation to base game play.
Is Finn and the Swirly Spin suitable for bonus wagering requirements?
Yes, it's a reasonable choice for clearing wagering requirements. The 96.62% RTP is above average, and the medium volatility means your bonus balance is less likely to be wiped out quickly compared to high-volatility slots. However, always check the specific casino's terms to confirm NetEnt slots are eligible and contribute fully to wagering.
