Not that i really plan doing so in a near future, but i have been wondering if a game made and distributed by Quest would be sold independently or through a game selling resource like Steam. I really don't know much about legal issues involved or Intellectual Property protection.
Quest is an open-source license. http://docs.textadventures.co.uk/quest/ which means you can change it, manipulate it, modify it however you like and sell it.
The only thing you need to worry about is making sure whatever game/property you're trying to sell on Steam is 100% your own idea. ^_^
I would get a second opinion on it however.
I was wondering about Quest side. Of course, all the other stuff must be licensed or original. I plan hiring someone to produce images and someone to produce a music. But as I said, not in near future.
Thank you a lot for the reply and information.