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RTP Book of Secrets Extra Dice by SYNOT Games is a five-reel, ten-payline online slot built around an ancient manuscript theme. The game uses 10 symbols and includes a maximum win of 6,525x the bet, with RTP listed between 85.11% and 97.93% depending on the version.
The main feature is the Free Spins bonus. Three or more scattered Wild symbols trigger 10 free spins, and each bonus round adds an extra symbol to the reels for the duration of the feature. A Buy Feature is also available for instant access to Free Spins.
This page is intended for the demo version, where players can play for free and practice before playing for real money. The slot review focuses on the game mechanics, scatter Wild triggers, bonus access, and the structure of the bonus round.
