Book of Jam

“Book of Jam” is a video slot game developed by Thunderspin featuring five reels, three rows, and ten paylines. Inspired by classic fruit slots, the theme highlights colorful fruits and nostalgic symbols grown in a garden. The lightning star-shaped Wild symbol appears only on the 2nd, 3rd, and 4th reels, substituting for regular paying symbols to facilitate winning combinations. The Scatter symbol is called “Jam Recipe Book,” and landing three, four, or five Scatters triggers 10, 15, or 20 free spins.

When the free spins begin, a randomly selected special symbol becomes the Expanding Symbol; if this symbol appears on at least three different reels, it covers that reel completely, creating opportunities for bigger wins. During the free spins, Bonus symbols (purple fruit stain symbols) appear on the 1st, 3rd, and 5th reels; these symbols award extra free spins and increase the Super Bonus counter value. When five Bonus symbols are collected, a Pick’em style Super Bonus Game starts after the Free Spins end. In this game, players choose from five jars; multipliers can be won here, and total winnings are calculated by multiplying the base bet.

In the Pick’em Super Bonus Game phase, some jars contain multipliers while others are empty; if a wrong jar is selected, the game ends. The highest multiplier values can be up to 300 times. The game features a multiplier offering capability as well as High Volatility, which can affect the frequency of wins. The maximum win potential is capped at 1,000 times the bet amount.

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