Age of the Gods Norse: Book of Dwarves is a 5-reel, 50-payline slot game developed by Playtech Origins. The game is themed around Norse mythology, specifically focusing on dwarves and their legendary craftsmanship. The game features a high volatility, meaning wins are less frequent but potentially larger. The RTP is set at 94.11%, which is slightly below average. The game’s main attraction is its bonus feature, which includes expanding symbols and free spins. Players can trigger free spins by landing three or more scatter symbols, and during the bonus round, a randomly chosen symbol will expand to cover a 3×3 area, increasing the chances of forming winning combinations.