What to interest the user and how to get him to the site?

You can use any scheme you like. Let's consider the most banal ones:

The first scheme - you offer the user a job in our project NFT games - designer, tester, advisor, even admin. Naturally, we interest the user in the salary and the prospects of the project.

The second scheme is to find NFT artists, designers and just creative people who can make NFT or NFT things for our game. We bring them to the project under the pretext of cooperation and interest from sales of their projects and NFT.

Your main task is to come up with a way for the user to download a file from our site.

Again the most important thing is creativity, the more unique your idea the more chances of profit.