“Book of” slots are high-volatility games built around a Book symbol that acts as both wild and scatter. Land 3+ Books to trigger free spins; one symbol is selected to expand and pays anywhere it lands, with possible re-triggers.
Expect fewer base-game hits and bigger bonus bursts. Here you can play top “Book of” titles in demo or for real money. Winz supports crypto and fiat payments, fast withdrawals, and offers zero-wagering bonuses.
Most “Book of” slots follow a simple 5×3 reel layout with 10 paylines, though some modern versions expand this. The Book symbol substitutes for all others and also triggers free spins when three or more appear. At the start of the bonus, one regular symbol is chosen to expand and cover full reels when it lands, paying on any line position.
Many newer releases add twists like multiple expanding symbols, higher paylines, bonus buy options, or progressive multipliers, but the core mechanic: high-risk spins chasing a lucrative free spins round - remains the same.
It refers to a slot style where the Book symbol acts as both a wild and a scatter, triggering free spins with expanding symbols. The format was popularized by Novomatic’s Book of Ra.
Many have RTPs around 96%, but Book of 99 by Relax Gaming stands out with a 99% RTP, making it unique among high-volatility titles.
Yes. At Winz Casino you can play all “Book of” slots using Bitcoin, Ethereum, Litecoin, and other supported coins, as well as fiat currencies.
Absolutely. You can try most titles for free at Winz to learn the mechanics before switching to real-money play.
Book of Dead by Play’n GO is one of the top picks among players, thanks to its high volatility, modern graphics, and big win potential.