If you want to embed an Interacty game/quizz into your Google site, follow this quick guide:

While editing your Google site page, click Embed button:

Select Embed code option:

You will see a new window for HTML code:

To find this code on Interacty, sign in to your profile, and click Share/Embed button next to the project you want to embed:

Select Embed in your Website or LMS option:

Click Copy Code button next to the code you need:

Turn back to your Google site page and paste your code:

Click Next:

You will see your quizz in this field. Click Insert to paste it into your site:

It's done! Your quizz will appear on Google site. You can transform and move it, if needed: