Enter the sorcerer's tower in Golden Grimoire by NetEnt and see if you can snatch generous cash prizes through Mystery Symbols, which come as standard in the base game and sticky in the bonus feature. You can also capture free spins where wild symbols can begin to appear on the reels.

Our Verdict:

The Golden Grimoire slot game from NetEnt delivers a compelling playing experience thanks to its use of powerful Mystery Symbols which can transform the reels to display a selection of matching symbols and create one or more wins. With spins of 20p and higher, you can also trigger the Free Spins Bonus where the Golden Grimoire can conjure up sticky Mystery Symbols including sticky wilds!

The Golden Grimoire slot also comes with an appealingly-high RTP of 96.44, and there are up to eight thousand coins to be won on every spin.


Golden Grimoire comes with forty fixed paylines that allow you to create winning combinations from left-to-right across the reels.

The graphics are first-class, and they depict a wizard's study which is located high up in a tower and offers an extraordinary view of the night sky through its observatory-style window.

As candles flicker within the darkened room, a variety of mysterious objects can be seen. They include ancient spell books, pentagrams, bottles of magical potions, and voodoo dolls. To add to the suspense, a surging orchestral soundtrack plays while the reels are in motion, and the flames on the candles flicker in the unseen breeze.

The paytable symbols in the Golden Grimoire slot that can help you win prizes include skulls, precious gems, spades, diamonds, clubs, hearts, keyholes, and spell books. There is two buttons either side of the Spin button that allows you to place the max bet or enable Auto-Play, and to the left of them, there are other buttons that increase and decrease the coin value and bet level. You can also choose to mute the music and sound effects if you wish.

Wild Symbol:

The wild symbol in the Golden Grimoire slot game is only ever seen in the Free Spins Bonus. It's represented by the Skull, and it can be used to substitute for any symbol apart from the scatter when it's possible to make a winning combination.

Bonus Features:

Golden Grimoire offers you two bonus features, each of which can be triggered in a different way.

To receive Mystery Symbols, at least one Spell Book must be present on the reel set. Once activated, the feature waits until the spin is finished before turning all Mystery Symbols into a matching random symbol. As the wild is only available during the Mystery Symbols Feature, you could be lucky enough to see the Skull wild as a result of the symbol transformation process.

If the wild is chosen as the Mystery Symbol, all symbols between it and Reel 1 transform into matching symbols. If the Mystery Symbol is not a wild, the symbols between it and Reel 1 only become identical symbols if the adjacent row of Reel 1 is also showing the chosen transformed symbol.

Three scatter symbols award the Free Spins Bonus in the Golden Grimoire slot where you get eight free games with sticky Mystery Symbols.