Now many games are using NFT for their development. To attract a lot of users NFT games are using airdrops like this
https://twitter.com/spacegrime/status/1396545308809601025. If you will check the results of airdrop you can see that airdrops are very effective and can attract a lot of users to the gaming comminity.
Now NFT is actively used in games, after the launch of CryptoKitties, the popularity of NFT in games does not decrease, as this is a great opportunity for earning money.
After CryptoKitties, there are so many games with NFT that you need an exciting story, interesting graphics and powerful advertising to attract attention.