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Finn and the Swirly Spin by NetEnt overview
NetEntβs take on the swirl-style grid game keeps the tension of a classic slot, but replaces fixed paylines with adjacent matches. On the 5×5 board, three or more matching symbols in a straight line, either vertically or horizontally, create a win. Low symbols include stone spades and wooden hearts, with horseshoes, clovers, and acorns paying more. The large ruby is the standout, rewarding the biggest line wins, including 50x for five matching rubies in a row. The game targets a medium volatility profile with an RTP around 96 percent, so it balances steady cascades with the potential for hot runs within a single spin.
| Slot Title | Finn and the Swirly Spin |
| Software Provider | NetEnt |
| Type | Video Slot |
| Theme | Irish, Magic, Adventure |
| Release Date | November 2017 |
| RTP | 96.62% |
| Volatility Level | Low to Medium |
| Hit Frequency / Hit Rate | Not specified |
| Maximum Win / Multiplier | 500x |
| Jackpot Type | None |
| Payout Structure | Cluster Pays |
| Reels & Paylines | 5 Reels, 5 Rows, Spiral Pattern |
| Game Mechanics | Avalanche Feature, Spiral Spin |
| Bonus Features | Free Spins, Random Features |
| Special Symbols | Wild Substitutions |
| Autoplay / Turbo Mode | Autoplay Available |
The game is built for smooth play on both desktop and mobile, with crisp animations and fast cascades. Session flow is driven by the spiral path and the key objective, so even short play windows feel eventful. If you prefer games that can string multiple wins into a single spin and build toward feature rounds, Finnβs format is designed for that rhythm. Random features can trigger during play to nudge the grid, including Starfall Wilds, which drop additional wild stars, Dragon Destroy, which clears symbols to ensure progress, Irish Luck, which creates a guaranteed straight-line win, and Magic Transform, which upgrades low hearts and spades to mid or high symbols. These nudges often help the key advance, even when the initial layout looks quiet.
How to play Finn and the Swirly Spin slot
This contemporary slot trades old-school reels and paylines for a 5×5 grid where wins form in straight lines. When a win lands, the symbols involved disappear and a star appears. Each star acts as a wild, then explodes, removing adjacent symbols and creating space for new icons to swirl in from the bottom left. That chain reaction can continue several times within a single paid spin, which is where much of the gameβs momentum comes from. Pick a stake that suits your bankroll, and remember that no deposit spins usually use a fixed bet level that you cannot adjust.
A key mechanic runs through every spin. At the start of each round, a key is frozen in ice in the bottom-left corner. Each time wins clear symbols and the spiral shifts, the key advances along its path. Your aim is to help the key reach the keyhole in the centre of the grid. When it gets there, Finn travels to a free spins world. Keys also track your progress towards higher-tier free spin modes, so chaining smaller wins is often just as valuable as landing a single big line. In many casinos, key progress is tied to the selected stake, so changing bet size can present a fresh key track. At SA sites this may vary by operator.
As for symbol values, smaller line wins usually come from the spades and hearts, while mid-tier payouts appear with horseshoes, clovers, and acorns. The ruby delivers the top line rewards, and lining up five in a row is where that symbol shines. Because the grid counts straight-line connections only, a tight cluster of matching symbols does not pay by itself unless it forms one or more distinct lines. Wild stars substitute for regular pay symbols but do not replace the key, and their explosions can set up the next cascade.
Example
You land three acorns in a horizontal line near the lower left. They disappear, a star appears and explodes, clearing tiles around it. The grid swirls new icons in, the key jumps a few spaces towards the centre, and another three-of-a-kind connects at the top. Just like that, within one spin youβve advanced the key twice and opened up the board for the next cascade.
Tip
Watch the tiles that sit directly ahead of the keyβs path. Clearing those lanes, even with smaller wins, often moves the key further than chasing a single high-symbol line that is off the spiral. It is a lekker way to build momentum without taking big swings.
Free spins
Finn and the Swirly Spin offers four free spin destinations. You unlock higher levels by gathering keys, and each world layers in a distinct modifier. Lower-tier rounds are more accessible and consistent, while higher-tier rounds tend to remove low symbols or lock in wilds for bigger, swingier potential. Choose based on how many keys you have and the style of play you prefer that session. When no deposit spins trigger the bonus, you can usually choose from the destinations you have already unlocked on that stake.
The Star Bar
This is the first free spin offer most players encounter. It awards seven free spins with two or more wild stars added to the reels automatically. The extra stars help trigger more line wins and explosions, which can push the key along again during the round. Expect a steadier hit rate here, making it a good entry point while you collect more keys. It suits players who prefer volume and consistent cascades over peak payouts.
The Lava Lair
Unlocked with four keys, Lava Lair grants three free games where normal wilds are replaced by sticky wilds, and the Dragon Destroy feature is present. Sticky wilds remain in position, so cascades can connect through the same lane repeatedly. This setup can create long chains from a single trigger, but outcomes vary more since there are fewer spins. It is best when you want concentrated potential and do not mind higher variance within the bonus.
The Lucky Mug
Nine keys open Lucky Mug, delivering four free games with the Irish Luck feature guaranteed to trigger. Irish Luck adds a full line of matching symbols, ensuring at least one straight-line win to kick-start cascades. The preloaded line often clears a path near the key, so it is a strong pick if you like rounds that manufacture a win even when the grid looks cold. It also helps if you prefer a middle ground between stability and upside.
Golden Pot
At 16 keys, Golden Pot transforms all heart and spade symbols into higher-value icons with the Magic Transform feature. With low symbols gone, there is more room for premium lines and stars to chain. This is the most volatile of the four, since fewer low symbols mean fewer small buffers, but the upgrade can produce standout sequences when cascades catch. Choose it when you have the keys and want maximum upside, accepting that some rounds may fizzle quickly.
Pitfall
No deposit free spins often come with wagering requirements, a max cashout, and a set bet value per spin. Check those details before you start so you know exactly how your Finn free spins convert to withdrawable cash. If anything is unclear, most SA casinos will clarify on live chat in no time.
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Erik King
Editor in Chief - Zamsino.com
I always loved gambling and probably always will, spending my time reviewing gambling sites to help people save time.
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Last updated 07/11/25 by Erik King