Have there been any sort of "games" where the creator makes an emerging story, offering up several choices at various points, that audiences can decide on before going through with the one of them, and when the whole thing's done, the game is ended and the resulting story moved into PSL? Is that allowed (because I want to make a story where during the development, I let the audience decide what should happen at various points, before ultimately going through with one of their suggestions, affecting the direction and end)? If not, how can I achieve something similar?
Also, do I have to do second person, or can I use third person? Can some games have choices that aren't just about deciding what the protagonists do but affecting the circumstances of the story (all under the GM's supervision of course)?
EDIT: Also, since my time is always in a crunch, an ASAP reply would be best (take your time though, I'm not forcing you).