Book of Books

The game "Book of Books" by Yggdrasil is a video slot that focuses on a mysterious medieval order called the Peregrin, who guard the "Book of Books." The main structure consists of 5 reels and 3 rows with 10 fixed paylines, which can expand to 5×4 or 5×5, offering 20 or 40 lines during the free spins round. When 2 Scatter symbols appear in the main game, the PowerUp Collection is activated, which stores a random PowerUp for the next free spins round: it can be additional spins, an extra expanding symbol, or an expanding multiplier (x1 or x2). If three or more Scatters are present, the free spins round is triggered. The location of the Scatters determines the size of the grid: three Scatters create a 5×3 board, four create a 5×4, and five create a full 5×5. The free spins start with seven spins, and all PowerUps collected in the main game are applied in this round. During the free spins, a random expanding symbol is selected on each spin; if this appears enough on the screen, it expands across the entire reel, generating special payouts. Wild symbols complete all normal combinations except for the Scatter. There is a Golden Bet option that increases the bet and improves the chances of triggering the free spins round. In some countries, there is also a bonus buy option available to access the free spins directly with predefined elements regarding the number of Scatters and the size of the grid. The maximum possible winnings can reach up to 10,000 times the bet.

You can try it for free in demo mode or play it for real money.