Free demo with play-money credits. No download, no sign-up.
- Maker: NetEnt
- RTP: 96.62%
- Lines: Wins for 3 or more matching symbols in a row, across or down
- Volatility: Low to medium
Finn and the Swirly Spin is a NetEnt slot from 2017 starring a leprechaun named Finn. It does not have reels in the usual sense. The symbols sit on a five-by-five grid and follow one long spiral path that winds from the outside of the grid around and around to the center.
A key symbol travels along that spiral. Every win clears symbols and lets the ones behind them slide closer to the middle. Get the key all the way there and you unlock free spins. It is an online game with no casino floor history, and the demo here is the complete version.
Finn and the Swirly Spin Quick Facts
| Game maker | NetEnt |
|---|---|
| Released | 2017 |
| Reels | 5×5 spiral grid |
| Paylines / ways to win | Wins for 3 or more matching symbols in a row, across or down |
| RTP (payback) | 96.62% |
| Volatility | Low to medium |
| Top prize | 300x the bet, per NetEnt (review sites quote more) |
| Bet range | 0.10 to 200 per spin (some sites cap at 100) |
| Bonus round | Four free spin rounds unlocked by collecting keys, with 2 to 7 spins each |
| Free demo | Yes. No download, no sign-up |
How Finn and the Swirly Spin Works
The grid holds 25 symbols. A win is three or more of the same symbol next to each other in a straight line, either across or down. You pick a total bet, listed from 0.10 to 200 per spin, and there are no paylines to choose. Hearts and spades are the low symbols, and the game also has wild symbols that stand in for the others.
After a win, the winning symbols are destroyed and the rest slide along the spiral toward the center to close the gap. NetEnt calls this an avalanche. If the move creates a new win, it pays and the process repeats. The key symbol moves with everything else, so a run of wins is what carries it to the middle of the grid.
The RTP is 96.62%. RTP, or return to player, is the share of all bets a slot pays back over a very long time. Volatility is rated low to medium, which means frequent small wins and few large ones. NetEnt lists the top win at 300 times the bet, a low figure next to most modern slots, though some review sites quote a higher number.
Finn and the Swirly Spin Bonus Features
Starfall Wilds
A random feature in the main game that places two to five or more wild symbols on the grid at random positions. The new wilds can then complete wins.
Dragon Destroy
A random feature in which a dragon burns away a random number of symbols. The remaining symbols slide along the spiral to fill the gaps, which sets up a fresh avalanche.
Irish Luck and Magic Transform
Irish Luck adds a full line of one symbol, across or down, which gives you a matching row. Magic Transform turns every spade and heart symbol into a higher-paying symbol.
Free spins
Free spins start when the key sits in the center once the wins stop. Each trigger adds a key to your meter. Keys unlock four rounds: Star Bar at 1 key with 7 spins, Lava Lair at 4 keys with 3 spins, Lucky Mug at 9 keys with 4 spins, and Golden Pot at 16 keys with 2 spins.
Good to Know Before You Play
- Each free spin round is paired with one of the random features: Starfall Wilds in Star Bar, Dragon Destroy in Lava Lair, Irish Luck in Lucky Mug, and Magic Transform in Golden Pot.
- Your key count is saved. NetEnt says the meter does not reset when you close the game.
- The free spin rounds are short, between two and seven spins, so do not expect long bonus sessions.
- The listed top win is modest. This game suits players who like steady small wins more than a chase for one huge prize.
Play Finn and the Swirly Spin for Real Money
The demo on this page uses play money, so nothing you win or lose is real. If you want to play slots for real money, the Play for Real button takes you to an online casino we have reviewed. Game line-ups differ from casino to casino, so look for Finn and the Swirly Spin or a similar NetEnt game in its lobby.
You can also compare our best real money casinos, or the sweepstakes casinos that are legal in most states.
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Finn and the Swirly Spin FAQ
Can I play Finn and the Swirly Spin for free?
Yes. The demo on this page runs on play-money credits, with no download and no sign-up. You can spin as long as you like to see how the spiral and the key work. The credits have no cash value and cannot be cashed out.
What is the RTP of Finn and the Swirly Spin?
The RTP of Finn and the Swirly Spin is 96.62%, according to NetEnt and the review sites we checked. RTP is the share of all bets the game pays back over a very long time, not a forecast for a single session.
How do you trigger the bonus in Finn and the Swirly Spin?
Get the key symbol to the center of the spiral. Wins clear symbols and pull the key inward, and if it sits in the middle when the wins stop, free spins start. The first round, Star Bar, gives 7 spins.
How do you unlock all the free spin rounds in Finn and the Swirly Spin?
Every time you trigger free spins you earn one key. Star Bar opens with 1 key, Lava Lair with 4, Lucky Mug with 9, and Golden Pot with 16. The key meter is saved between sessions, according to NetEnt.
Last updated: October 2026 · Reviewed by the SweepWiz Editorial Team · Editorial policy
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