Tome of Mystery opens in a sunlit temple archive, its shelves crowded with scrolls and jars between two colossal painted columns. Turquoise braziers glow near the floor, and a lapis console runs under a plain, dark grid. My total bet was FUN 2, with close to FUN 100,000 available.
Theme and Gameplay
Gold pharaoh masks, turquoise ankhs and jewelled blue scarabs join an Explorer on the premium side, and ornately engraved card letters with inset gems rank lower. Rich lapis and gold tones run through everything, giving this a more polished look than many games in this crowded genre.
Slot Features
Matching icons pay consecutively from reel 1, and a line only pays its largest win. A line made only of Books pays like the highest-value icon.
Three Books award 10 spins with a 2x scatter win, four give 15 with 15x, and five-plus give 20 with 50x. One paying symbol gets picked at the start and remains selected throughout. Any reel holding that symbol or a Book fills up completely.
The expanded grid then pays by total count anywhere, instead of along fixed paylines, and those amounts join the original line and scatter wins. One to five full reels hold 3, 6, 9, 12 or 15 selected symbols, with the top ladder rising from 0.2645x to 7.314x. Further Books award more spins at the same tiers, keeping your symbol, and a feature can reach 200 spins altogether.
RTP and Win Potential
Bonus Buy costs 19.04x and starts the bonus directly, but the rules estimate its return at just 84.98%, separate from the normal-spin figure. That’s a low figure for any slot feature. No guaranteed prize comes with the 5,000x cap, which covers all free spins within a round.
My Thoughts On This Slot
The Book formula is familiar, and this version executes it with care. Those long possible free spins runs add some extra appeal, as does the attractive temple artwork.
Anyone who has played a dozen of these won’t find many surprises, and the buy price hides a weak return.
