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 are actively used in gaming industry. They allow to attract big community of users giving them ability to earn money by playing games buying rare NFT.
After the popularity of CryptoKitties NFT tokens are constantly used in games, which increases the popularity of cryptocurrencies and attracts a lot of attention to them.