Golden Grimoire Demo Slot by Netent Free Play

Golden Grimoire is an online Slot from Netent.

Quick Facts

- Layout: 5 reels x 4 rows

- Paylines: 40 fixed

- Key mechanics: Mystery Symbol Transformation, Sticky Mystery Symbols, Free Spins

- Special symbols: Golden Grimoire (Mystery Symbol), Golden Skull (Wild), Keyhole (Scatter)

How the Game Plays

Golden Grimoire by Netent transports you into a dimly lit sorcerer's chamber filled with ancient artifacts, flickering candles, and a portal to the stars. The action takes place on a 5x4 grid featuring high-value gems protected by mystical creatures—including spiders, snakes, and krakens—alongside glowing card suit icons. Winning combinations are formed by landing three or more matching symbols across any of the 40 fixed paylines. The atmosphere is heavily focused on the occult, with ambient soundscapes that build tension as symbols stack and transform across the reels.

Mystery Symbol Transformation Explained

The central feature of this slot revolves around the Golden Grimoire, a magical book that acts as a mystery symbol. When these books land on the third, fourth, or fifth reels during the base game, they transform into a randomly selected symbol (including Wilds). If the transformed symbol matches the symbol on the leftmost reel of the same row, every symbol between them on that row transforms into the matching symbol. If the book transforms into a Wild golden skull, all symbols to its left on that row automatically become Wild, regardless of the symbol on the first reel.

Free Spins Explained

Landing three keyhole Scatter symbols on reels 1, 3, and 5 triggers 8 free spins. During this bonus round, the mystery book symbols can appear on reels 2 through 5, significantly increasing the chances of triggering a transformation. Furthermore, every mystery book that lands during the free spins feature becomes a Sticky Mystery Symbol, remaining locked in position for the duration of the round and transforming into a new symbol on every subsequent spin.

Click the Play for Free button to load the Golden Grimoire demo, test its features and payouts and decide if it is a game you enjoy.