I thought about that too :) Would be cool if you could embed these games in Steemit posts since the games can be exported to HTML + JavaScript, so can be played in a web browser, but I guess instead you could just host them somewhere else and then just link to them in a short Steemit post that describes the story :)
Might be a cool way to finance writing these type of interactive stories, instead of selling them directly, if there is enough interest on Steem. Especially when you're just starting out and haven't created something sophisticated enough yet to be sold on an app store.