**Summary ** GameFi is the integration of DeFi, video gaming and NFT technologies. Play-to-Earn (P2E) games allow players to earn in-game currencies. Axie Infinity, Alien Worlds and CryptoBlades are examples of popular P2E games. Players can buy, hold or sell in-game assets. Blockchain based gaming is now dominating the internet, with many people participating for entertainment purposes or for generating additional income. Basically, GameFi is the integration of video gaming and decentralized...