I bought game Nova 3 at app store. The game does not work on my iPhone X. I lost 7 dollars for nothing.

Hey there, levan95!

Thanks for using Apple Support Communities! From your post, it sounds like you'd like to request a refund for your purchase.

Check this out: Request a refund for apps or content that you bought from Apple. It gives you exactly what you'll need to start a refund request. We'd suggest using the first section as a checklist.

Take care!