Book of Skull

“Book of Skull” by Kagaming is a video slot with a 5-reel by 3-row grid featuring 20 fixed paylines. The theme is dark and mysterious, with horror atmospheres, skulls, ancient tomes, and magical artifacts, all set against a sinister purple background. The symbol “Book of Skull” acts as both a Wild, substituting for other symbols to form winning combinations, and as a Scatter: three or more appearing trigger the free spins round. During the Free Spins, a standard symbol is randomly chosen to become an “expanding symbol”: when it appears on the reels during the bonus, it expands to cover the entire reel, increasing the chances of winning across all paylines. There are also multipliers that can boost winnings, although they are not always active in every feature. A Bonus Buy option to directly purchase the Free Spins round is not available; it must be activated through the Scatter. The game supports autoplay, allowing the reels to spin automatically for a predetermined number of spins. Bets start from a low minimum value and can rise to higher limits, suitable for both players who bet modestly and those who prefer to wager larger amounts.

You can play it for real money.