Book of Oil, a slot from Endorphina, presents Buy Feature, Free Spins, and Wilds as core mechanics. Built on a 5-3 layout with 10 paylines, the game uses a theme centered on oil extraction, barrels, and money imagery. The visual design aligns with industrial and financial motifs, while mechanics are described as standard within the producer's portfolio.
Mechanics and terms are complemented by Scatter symbols that trigger features, while Wilds substitute for other symbols. Free Spins can retrigger, and Additional Free Spins may extend the round. The Buy Feature enables direct access to a Free Spins round, and the Risk/Gamble (Double) option provides a wager-based path to increased winnings. Thematic elements include a barrel motif, orange subject, money, oil, and extraction of oil. Definitions: Free Spins are a bonus round granting additional spins; Scatter symbols trigger features. In practice, players may encounter varied pacing across sessions.
Top Win: x72; RTP: 96%; Max Bet: USD 50; Min Bet: USD 0.01. Volatility is described as Medium.
