I'm sure others have had large libraries and maybe not noticed "did I buy this game or not?" You often can scroll to the announcements box in the library page of the game and see it is the latest post. However, to make the best experience under BPM, a lable (like those of controller, OS type, etc) should be over top the box art (thus not needed modication of the art banner) to let players know it is a "free weekend" of some sort.