Itch.io requests that games on the platform self disclose the use of generative AI in projects. The platform's full guidelines for developers are listed here. Projects that self-disclose generative AI use will display so to players underneath the expanded 'More information' section on the project page. 

When creating your project page, you can find radio buttons to disclose AI use in the section titled "AI generation disclosure", which can be found below the "Tags" section and above the "App store links" section. Selecting 'Yes' creates a new box allowing you to specify what kind of content in your project is AI generated.