Gamers already spend a lot of time and money to play different games. They have a big community of users and can communicate with each other.
NFT allows to earn money buy playing and spend a lot of time not only playing but also earning more more money.
The opportunity to earn money attract more people to the games.
Now it became very popular to make money by playing.
That is why there is a big demand for NFT games.
That is why a lot of new games appear that offer ability to earn money by using NFT.