Book of Medusa by Spinomenal — rules and features

About the game

How Book of Medusa works

01Grid, symbols and game feel

Book of Medusa is a Book game on a 5x3 grid with 10 bet lines (PER LINE 0,01, total stake 0,10 in the session; balance around 5.000 in FUN). The theme is Greek with moss-covered brooches and ruins.

The high symbols are a marble statue of a philosopher/Zeus figure, a helmet, a golden shield and a root amphora, while K, Q, J, 10 and A make up the lows. The book itself (Book of Medusa) is both WILD and scatter. In the session there were repeated line wins of 0,05 and one of 0,20.

02Scatter/wild, free spins and profile

The information panel was read directly: the WILD symbol is also a scatter and counts like any symbol. 3 or more scattered WILDs pay 3 = x2, 4 = x25 and 5 = x250 and trigger 10 free spins, and scatter wins are added on top of the regular line wins.

During free spins the same per-line bet applies as in the round that triggered them, and a special symbol expands according to the Book formula. The game also has a BUY button to purchase the feature directly; the price is shown in the buy dialog. RTP and max win did not appear in the screenshots and are confirmed in the game's paytable.

Sorted on Olympus

Themes & features

Themes

Ancient civilizations Books Greece Helmets Medusa Mythology Shields Treasures

Features

Book of mechanic Bonus buy Cheats tool Expanding symbols Free spins Scatter symbols Wild

The rule set

Game rules

Base game

The game runs on a 5-3 reel set with 10 paylines. The published return is —, and the volatility is listed as —.

Book of mechanic

A symbol acts as both scatter and wild, and in free spins a special symbol is chosen that can expand to cover entire reels.

Bonus buy

The bonus round can be bought directly for a fixed amount of the stake instead of waiting for scatters. The price is shown in the game's buy window — and some operators turn the feature off.

Cheats tool

The game has a built-in panel of optional features that the provider calls cheats. What each option does is stated in the game's info panel.

Free spins

The scatter symbols trigger a round of free spins. The number of spins and the required number of scatters are shown in the game's info panel and can vary slightly between operators.

Scatter symbols

The scatter symbol pays regardless of position and counts toward the bonus round.

The Wild symbol

Wild substitutes for regular symbols and helps complete wins. It normally does not replace scatter and bonus symbols.

18+ · Play for entertainment, and set limits before you play. If you need help: stopspillet.dk / 70 22 28 25 — or self-exclude via ROFUS.

The numbers behind the game

Key figures and payouts

Key figures	Value in our catalog data
RTP according to catalog data	Not disclosed
Volatility	Not disclosed
Max win	Not disclosed
Ways to win	10
Reel set	5-3
Min. indsats	0,1 €
Max. bet	100 €
Win frequency	Not disclosed
Provider	Spinomenal
Released	6. januar 2026

The exact multiplier values per symbol count appear in the game's info panel and can vary with stake and operator. We reproduce only figures from our catalog data — not our own measurements in the game.

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