Hi, it says that you haven't uploaded a game yet. I don't know how to export a game made in anything but Godot, but it should let you export the files for a specific platform. You can then zip them up into a .zip file and upload that. If you exported it for the web, make sure that the .html file is named index.html, and check the box that says it will be played in the browser. If exported as a download, make sure to upload the .zip and choose the platform!