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RTP Book of Mystery by JDB Gaming is a 5-reel slot with 10 fixed lines and an RTP of 96.42%. The demo version lets players play for free and review the core rules before deciding whether to practice before playing for real money.
The game draws on an ancient Egypt theme, with the golden book acting as a WILD symbol. A key feature is the FREE SPIN bonus, which can award up to 100 spins. During free spins, the Mystery symbol may expand randomly, changing the screen layout and creating the chance of a larger payout.
Bet sizes range from 0.1 to 0.5, keeping the stake options simple in this Book of Mystery slot review. The full-screen Mystery feature is linked to a maximum 5,000X win, making the bonus round the main focus for players looking at the game's mechanics and special symbols in the demo version.
