Wolf of London: A Grid That Grows by Moonlight

Wolf of London is a Yggdrasil video slot released on 17 September 2026, set in fog-covered Victorian streets lit by lanterns, with a werewolf waiting in the shadows. Yggdrasil rates it MEDIUM-HIGH volatility and puts the max multiplier at X 3,095.

The mechanics are built in two layers. Rising Moon symbols make the grid taller one row at a time, and crystals collected along the way unlock a Free Spins round that adds a Super High Paying Werewolf symbol to the reels.

Yggdrasil lists four features on its spec sheet: Collectible Crystals, Collection Free Spins, Expanding Reels, Free Spins. Its description adds that the game has two Free Spins features and a head start for new players, without explaining the second of those.

Yggdrasil lists the RTP as 90.5%, 92%, 94%, 96%, so four versions of the game exist, spread across five and a half points. The RTP printed in the rules screen of the game you open tells you which one is running.

Volatility is rated MEDIUM-HIGH and the hit frequency is 20.3%, about one winning spin in five on the provider's figure. That pairing points to a game where most spins return nothing and the expanding grid and Free Spins carry the bigger results.

The max win is listed as €386,875, alongside a max multiplier of X 3,095. Yggdrasil's page for Wolf of London does not publish a bet range, so the stake behind the cash figure is not stated there. The multiplier is the more useful number when comparing it with other slots.

The Rising Moon is the base mechanic. Yggdrasil says each Rising Moon symbol that lands expands the reels by 1 row, growing the grid from 5×4 up to 5×7, so three moons are enough to reach the full size.

Each extra row adds five more positions for symbols to line up across, which is how the grid creates bigger wins. Yggdrasil does not say whether the expanded grid stays in place between spins, resets after a win or only applies within a feature, and that detail changes how much a single moon is worth.

The spec sheet lists 1,024 under lines. Yggdrasil does not explain whether that count changes as the grid grows from four rows to seven, so check the paytable for how wins are counted on a taller grid.

Crystals are the long game in Wolf of London. Yggdrasil says collecting all of them unlocks Collection Free Spins: 5 Free Spins in which a Super High Paying Werewolf symbol, matching the crystal colour, is added to every reel set.

The wording ties the Werewolf that appears to the colour of the crystals. Beyond that, Yggdrasil does not say how many crystals or colours there are, how a crystal is collected, or whether the collection carries over between sessions. Those are the questions that decide how often Collection Free Spins arrive.

The appeal of the round is clear from the rule itself. Adding a top-paying symbol to every reel set for five spins raises the chance of that symbol lining up, which is where the Werewolf earns its Super High Paying label.

Yggdrasil's description promises two Free Spins features, and the spec sheet lists both Free Spins and Collection Free Spins. Only the collection round is described, so the trigger, spin count and rules of the standard Free Spins are not published on the provider's page.

The same description mentions a head start for new players. Yggdrasil does not say what that is or how it works, so this page does not guess. If it matters to you, the game's help screen is where it will be explained.

Several standard figures are missing from Yggdrasil's page. There is no bet range, no minimum or maximum stake, and no bonus buy: the game type is listed simply as Slot, so this review does not claim a feature purchase exists.

The layout figures also need care. The spec sheet gives reels as 4 and rows as 5, while the description talks about a 5×4 grid growing to 5×7. Yggdrasil does not reconcile the two, so the demo is the quickest way to see the grid's real starting shape.

Yggdrasil lists desktop, Apple and Android support and a long list of languages, including German, French, Japanese, Korean and Chinese.

Yggdrasil hosts a Wolf of London demo that runs on play credits, and it fills most of the gaps above. Start with the RTP stated for the version you have loaded, then the stake range.

Next, watch what happens after a Rising Moon lands: whether the extra row survives the next spin and how the win count changes on a taller grid. Then look at the crystal collection, how many crystals are needed and whether progress is shown on screen. Finally, find the trigger for the standard Free Spins and the explanation of the head start.

A demo session cannot confirm a 20.3% hit frequency, but it will show how often the grid grows and how far the crystal meter moves in normal play.

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What is the RTP of Wolf of London?

Yggdrasil lists the RTP of Wolf of London as 90.5%, 92%, 94%, 96%, so four versions of the game exist. The rules screen of the game you open states which RTP is running, and that is the figure to rely on. Volatility is rated MEDIUM-HIGH and the hit frequency is given as 20.3%.

What is the max win on Wolf of London?

Yggdrasil lists a max win of €386,875 and a max multiplier of X 3,095 for Wolf of London, and its description calls the top prize 3,095x. The provider's game page does not publish a bet range, so it does not say which stake the cash figure is based on. The bigger wins are tied to the expanding grid and the Free Spins features.

How do the Rising Moon symbols work?

Yggdrasil says each Rising Moon symbol that lands expands the reels by 1 row, growing the grid from 5×4 up to 5×7. That means three moons take the grid to its full size. The provider does not say whether the extra rows stay in place after the spin, so check the paytable or the demo for that rule.

What are Collection Free Spins in Wolf of London?

Collection Free Spins are unlocked by collecting all the crystals. Yggdrasil says the round gives 5 Free Spins with a Super High Paying Werewolf symbol, matching the crystal colour, added to every reel set. The provider does not publish how many crystals are needed or how they are collected, which the game's help screen should explain.

Is there a Wolf of London demo?

Yes. Yggdrasil hosts a Wolf of London demo that runs on play credits. It is the easiest way to see what the provider's page leaves out: the bet range, whether the expanded rows stay between spins, how many crystals unlock Collection Free Spins, what triggers the standard Free Spins and which RTP version you have loaded.