Knight Story is a supported game on the Ethereum blockchain. It is one of the best blockchain mobile games because it has an excellent user interface, rich history and smooth game mechanics to use. One of the advantages of the game is the collection of materials to make objects. Players can collect materials while fighting enemies, these materials can be used to craft items such as swords, sticks, bows, armor, amulets, and rings. We can combine 2 similar objects to create more powerful objects. With this possibility of making weapons which are also very fun, manufactured objects can be stored in an Ethereum wallet as a digital game asset and then be traded on a market.