Dependent variables NFTs in Lands

In each land, some kind of valuable NFTs are mined from the depths of the land that other lands need and these NFTs can be mined only in certain lands. This mechanism always provides a cycle of NFT circulation in the market in the form of supply and demand, the constant needs of players. For example, a drill that is much needed in the maritime land is made of metal that is mined from the plain land. This creates dependent needs and thus a market boom.