The Princess is the substitute on reels 2, 3 and 4 only and the harp is the scatter symbol. The king gives generously to his slots kingdom with 10,000 coins for 5 in a row. With both a free spins feature and a Princess bonus feature, the luck of the Irish will rub off on just about anyone with these features if the slot itself fails to catch your attention. 3 harps starts the free spins round with a mystery number being awarded and all prizes doubled. The free spins can be retriggered. When the princess feature is triggered 6 knights will appear and players must select 3 of the most appropriate suitors. Sorry guys. Each knight will gift the princess a prize value. The bonus can be won during the free spins feature. A gamble feature is another reason Celtic Crown slot is listed as one of the favorite Microgaming games. Double or quadruple winnings according to your preference.