Rise of Merlin is a 5-reel, 10-payline slot that draws players into the enchanting world of Arthurian legend, centered around the powerful wizard Merlin. The game is known for its mystical atmosphere and compelling bonus features. The highlight is the Free Spins round, where a special expanding symbol is chosen at random before the feature begins, potentially covering entire reels for massive wins. This bonus can be re-triggered, adding more expanding symbols and increasing payout opportunities.