Developer 
Lines Book of Nibiru by 1spin4win is a Book-of style slot with an Egyptian setting, 5 reels and 10 paylines. The game has a 97.4% RTP, high volatility, a minimum bet of €0.1 and a maximum stake of €50. Its mechanics centre on Scatter symbols, Wilds and a bonus feature linked to special symbol collection.
Three Scatter symbols trigger 10 bonus spins, four Scatters award 15 bonus spins, and five Scatters unlock 20 bonus spins. Each bonus round includes a random Expanding symbol, which can affect symbol coverage during free spins. The stated maximum multiplier reaches x5,000, giving the game its higher-risk structure.
The demo version is available for players who want to play for free and practice before playing for real money. Book of Nibiru can be used to test the bonus spins, Wild symbol behaviour and overall slot pace before placing wagers in the full game.
