There is a lucky chance spin feature in this slot game Dragon Riches. If there is at least 1 point remaining and the credit balance is less than the amount necessary to play a game at the last bet amount, then a lucky chance spin is automatically offered. 6 free games are won with any 3 or more scattered special symbols. During the free game feature, every dragon that substitutes in a win doubles the pay for that win. Dragon substitutes for all symbols except the special two symbols.