I have a game I want to edit and its already published. Any way to edit it again?
If this is a game you created with the web editor, then in the list of your games (when you click the 'create' button above) there will be a "Publish Update" button.
For uploaded games, I believe there's an option to upload a new version on the "View/edit game listing" page, though I haven't tried it
mrangel I have not found the edit page :(
I suppose I could start over with the downloaded editor
Are you using the online editor?
If so, click the "create" button at the top of this page, and you will see a list of your games. Each one has "edit" and "publish updates" buttons next to it.