Book of Books

Book of Books is a high-volatility video slot from Yggdrasil Gaming, built on a 5-reel format with up to 40 paylines and a big panel layout. The game includes expanding symbols, an expanding symbol multiplier and powerups that support the free spins feature. The maximum multiplier reaches x10,000, while the stated maximum win is €500,000.

The slot’s main bonus structure centres on a collect feature that powers up the free spins game. During the bonus round, players can see up to 10 expanding symbols, with retriggers also available. Book of Books was released in March 2023 and lists an RTP of 96.1%, with a 54.8% BG RTP version noted in the specification.

A demo version is available, allowing players to play for free and practice before playing for real money. The game uses a 3-row layout, accepts bets from €0.10 to €50, and carries a high hit frequency of 33.26%.