I also studied information about free nft games. I think Axie Infinity is the best game. Its core philosophy is play-to-earn and it rewards its users for their time and effort. These rewards come in the form of an SLP (Smooth Love Potion) token that you can earn in the gameplay. SLP tokens can be exchanged for other Ethereum tokens on decentralized exchanges like UniSwap or Binance.
NFTs have effectively entered the gaming industry as part of a puzzle. Because they are highly entertaining and lucrative, gamers enjoy some of their favorite gaming genres as well as being at the forefront of the current NFT craze. Each of us chooses what he likes. I am also studying this direction. I'm still choosing between Crypto Kitties and Axie Infinity. I like that it will be an opportunity not only to play but also to earn.