Golden Grimoire is a NetEnt slot with a supernatural twist. You can play it with a minimum and maximum of 20p and £400 respectively, and there's the opportunity to score up to two hundred times your bet on each free spin in the bonus game. Mystery Symbols have the potential to award stacked wilds and other symbols too.

Our Verdict:

If you enjoyed playing the Magic Portals slot by NetEnt, you're sure to love Golden Grimoire as it also uses a sorcery theme. But, instead of portals helping you transform the symbols in between, the Golden Grimoire slot can turn ordinary symbols into wilds, and other symbols through the Mystery Symbols Feature.

You'll be on the edge of your seat in the Free Spins Bonus where the Mystery Symbols become sticky to aid you in your hunt for bigger prizes. And, if the wild is chosen as the Mystery Symbol, who knows how much you could win?


The voiceover in the video release following up to the launch of the game states that "Mystery and magic await you in the Golden Grimoire – the enigmatic, brand-new NetEnt slot," and once you've played it, we're sure you'll agree that it's just as enigmatic as it promises!

A sorcerer's tower is the location that's used for the Golden Grimoire slot game, and dramatic orchestral music and the sound of wind howling around the tower provides plenty of suspense.

Look around you, and you'll notice strange incantations written on the tower's walls, books of spells, burning candles, and potion bottles. And, in the centre of them all is a round window looking up into the night sky with the semi-transparent five-by-four reel set in front of it.

The paytable symbols include precious gems that are set with the legs of insects, skulls, spell books, keyholes, and playing card suits. There are forty fixed paylines, and you can adjust the size of your stake using the Coin Value and Bet Level buttons at the bottom of the Golden Grimoire screen.

Wild Symbol:

Golden Grimoire slot features a wild symbol which is the Skull, and it can substitute for all symbols apart from the scatter when it's possible for it to form a winning combination. However, the wild is only present during the Mystery Symbol Feature.

Bonus Features:

The Free Spins Bonus in the Golden Grimoire slot is triggered with three scatter symbols (N.B., the Keyhole), and it awards eight free spins. During the Free Spins Bonus, the Mystery Symbols become sticky so that they remain in view for the entire duration of the bonus.

The Mystery Symbol Feature is an integral part of the Golden Grimoire slot game, and it's activated when at least one Spell Book appears on the reels. At the end of every spin, any Spell Book (which is referred to as the Mystery Symbol) that's present on the screen automatically transforms into a randomly selected paytable symbol which can also include the Skull wild symbol. Plus, if the selected symbol is identical to the one showing on corresponding row on the first reel, any symbols between them are transformed as well.