Aurora Storm at a glance
Aurora Storm is a Yggdrasil slot released on 8 October 2026, with a cosmic theme built around the Northern Lights. Yggdrasil's pitch is that space keeps its mysteries until the aurora arrives, and the bonus round is billed as the eye of the storm.
The mechanics are compact. The game plays on a 5×4 grid with 10 paylines that pay both ways, its Wilds expand and stick for a respin, and a bonus round starts when Scatters land on all three middle reels. Yggdrasil's description names no other features, so those three ideas are the game.
On the provider's scale the volatility sits at MEDIUM-HIGH, so wins are expected to come less often and in bigger pieces than in a gentler game. That matters for how a short demo session will feel.
Aurora Storm RTP, volatility and max win
Yggdrasil publishes four RTP settings for Aurora Storm: 90.5%, 92%, 94% and 96%. The site running the game picks the version, so check the rules screen for the figure in use; 96% is the top setting, not a guarantee.
Volatility is rated MEDIUM-HIGH and the hit frequency is 25.43%, which works out at roughly one winning spin in four over a long run. Some of those hits will return less than the stake, so the hit rate measures how often something lands, not profit.
The max win is listed as €496,600 and the maximum multiplier as X 5,653.3. The two figures do not line up as a simple multiple of the €100 top bet (that sum would be €565,330), and the provider's page does not explain why, so the in-game rules are the place to confirm the cap at your stake.
At the €1 default bet, X 5,653.3 would equal €5,653.30. That is a worked example of the multiplier, not a separate published figure.
A 5×4 grid where lines pay both ways
Yggdrasil describes the playing area as a 5×4 grid: five reels of four symbols, 20 positions in all. Its spec table records the same layout as 4 reels and 5 rows, but the description's mention of three middle reels confirms five reels across.
There are 10 paylines and they pay both ways. A line can pay from the left edge of the grid towards the right and from the right edge towards the left, so a combination does not have to start on reel one to count. With only 10 lines, paying in both directions gives each line two chances to connect.
Expanding Wilds and the sticky respin
The Wild is the base game's main event. When one lands, it expands by a random number of positions, horizontally, vertically or both, and the game awards a respin with the expanded Wilds locked in place as Sticky Symbols.
The direction of growth matters. A Wild that grows vertically fills more of its own reel, and because every payline crosses each reel once, the more of a reel it covers, the more of the 10 lines it touches. A Wild that grows horizontally spreads along its row into neighbouring reels instead, which helps the lines that follow that row.
Yggdrasil's page does not say how far a Wild can grow, whether a new Wild landing during the respin expands too, or whether it earns a further respin. Those are the first things to watch in the demo, because they decide whether one Wild means a single respin or the start of a chain.
The eye of the storm bonus round
The bonus round, which Yggdrasil calls the eye of the storm, is triggered by Scatter symbols landing on all three middle reels. On a five-reel grid that means reels two, three and four each need a Scatter in the same spin.
Beyond the trigger, the provider's page gives no rules for the round: no spin count, no multipliers and no description of how the Wilds behave inside it. Read the bonus rules in the demo before forming a view of what it pays.
There is no bonus buy in the description or the spec table, so as far as Yggdrasil's page shows, the round is reached through the Scatter trigger alone.
Bet range and session pace
Bets run from €0.1 to €100 a spin, with €1 as the listed default. The top of the range is a thousand times the bottom, so the same game covers very small and very large stakes.
Read together, the 25.43% hit frequency and the MEDIUM-HIGH rating describe a game where about three spins in four return nothing. A short demo session can look quiet even when the game is behaving exactly as its spec sheet says, so judge it over a longer run.
What to check in the Aurora Storm demo
Yggdrasil's own demo build runs in euro play money, which makes it the simplest way to answer the questions the game page leaves open.
Start with a Wild. Note how far it stretches, whether it grows along its reel, its row or both, and whether the locked Wilds earn more than one respin. Then read the paytable to see which symbols pay most along the 10 lines, and whether a line that connects from both sides pays twice.
When Scatters land on reels two, three and four, watch what the eye of the storm round contains and how it ends. Finally, check the RTP line in the rules screen, which shows which of the four versions the demo is running.
More Yggdrasil slots
More Yggdrasil games covered on Slotscritic: 9 Orbs of Gold, Buffalo Horizon, Turbo Gold Deluxe GigaBlox™, Spooky Kabuki, Vikings Go To Hollywood WildFight™ RushingWilds™ and Wolf of London.
FAQs
What is the RTP of Aurora Storm?
Yggdrasil publishes four RTP settings for Aurora Storm: 90.5%, 92%, 94% and 96%. The site offering the game decides which one it runs, so you may meet a version below 96%. The rules or help screen inside the game states the RTP of the build you are playing, so check it before staking anything.
What is the max win on Aurora Storm?
Yggdrasil lists Aurora Storm's max win as €496,600 and its maximum multiplier as X 5,653.3. The two figures are not a straight multiple of the €100 top bet, and the provider's page does not explain the difference, so confirm the cap for your stake in the in-game rules. At the €1 default bet the multiplier equals €5,653.30.
How do the Wilds work in Aurora Storm?
When a Wild lands in Aurora Storm it expands horizontally, vertically or both by a random number of positions. The game then awards a respin with the expanded Wilds locked in place as Sticky Symbols. Yggdrasil's page does not say whether further Wilds during the respin extend the feature, so the demo is the place to see that.
How do you trigger the Aurora Storm bonus round?
The bonus round is triggered by landing Scatter symbols on all three middle reels, which on the 5×4 grid are reels two, three and four. Yggdrasil calls it the eye of the storm but does not publish the round's rules on its game page, so the spin count and any extras are shown only in the in-game help.
Is there an Aurora Storm demo?
Yes. Yggdrasil runs a free demo of Aurora Storm in euro play money, so you can watch the expanding Wilds, the sticky respin and the Scatter trigger without staking anything. It is also the quickest way to read the paytable and bonus rules, which the provider's own game page leaves out.
