Games have long had their own currencies. But for the most part, those were centralized, in-game, and only usable on the in-game markets. Blockchain is changing that dynamic. Now, not only are in-game items being produced as tradeable NFTs, but game currencies are now often created as blockchain tokens. This enhances play to earn opportunities by providing an easy method for players to cash out, and also opens up interactions with external services such as decentralized finance.