Developer 
Lines Book Of Wild by 1spin4win is a 5-reel slot built around the familiar Book mechanic, with 10 paylines and a wildlife theme. The Book symbol serves as both Wild and Scatter, while the game carries 97.4% RTP and high volatility, with bets from €0.1 to €50 and a maximum multiplier of x5,000.
The bonus feature is triggered by collecting 3, 4, or 5 Scatter symbols, which awards 10, 15, or 20 free spins. During the bonus round, a randomly selected symbol becomes Expanding, increasing its presence across the reels and shaping the outcome of the feature. The game also records a hit rate of 3.42, reflecting its streak-based structure.
This page offers the demo version of Book Of Wild so players can play for free and practice before playing for real money. The slot is presented near the launcher for a quick review of its rules, symbols, and bonus spins before starting a session.
