This isn't about a game, but a tool related to games, so I hope that's OK.
I've recently had an idea about a software tool that would provide a new way to look at one's Steam profile.
I'm wondering if there are legal issues to creating such a tool. Is this sort of thing common? Is it totally out of the question, perfectly legitimate, or questionable? I really have no idea, and I've never even considered selling software that isn't a game (my company is called Cheese and Bacon Games!) but if it is an OK thing, it would not take long to create it and try it out (famous last words...)