I've found and stuck with this game called Axie Infinity. You've to own 3 cats then you fight in the games, earning SLP token which can be exchanged into USD or ETH.
The economy of this game is very completed. Those with money can sponsor players without money. NFT playing it roles in this economy too. I'm still studying this project. It can give universal basic income to everyone as a player in this game.
you guys should look into this game