"Continent of Heroes" is an NFT game by Heroesoft. It represents the next generation of decentralized gaming metaverse. RUBY is a digital token utilized within the game, which can be purchased with BNB tokens on the market or acquired through gameplay. Mining resources in-game serves as a method to enrich the game ecosystem by earning RUBY through resource combinations for lords, heroes, and workers. Workers complete quests within the game and sell crafted items on the in-game market to obtain RUBY.