When you join a Metaverse world, such as Decentraland, you are presented with opportunities to obtain the world-specific cryptocurrency (e.g. MANA) to buy lands and avatar accessories that function inside the world.

At its core, the cryptocurrency is built on top of blockchain technology to track who owns what. Based on the verifiable information, the Metaverse worlds grant you access to customize the plot of your land and equip accessories you own.

Essentially, cryptocurrency is what enables the trade and exchange of digital assets. Just like in the real world, people are incentivized to create value in the fast-growing market where they can generate economic wealth.