Inspired by Role-Playing Games and the world Metaverse with Blockchain technology, we build CapMaster world, where there are all the elements so that players can freely immerse themselves in a real virtual universe. Here players will play the role of CapHero. Players will build not only their own dragon kingdom but also lands with different constructions and items obtained in the game. Besides, in the game, players will own real CapHero warriors and train these CapHero from the beginning until becoming a dragon warrior with unbeatable strength.