Scriptorerum allows you to play a game of stories with random people.
You create a story according to 6 genres:
Thriller, Sci-Fi, Romance, and Bedtime Stories.
Then you, the Master Author, start with the intro.
Each people that join your story will be asked to write an intro. Then when the maximum number of participants is reached all of them, including the 
Master Author will be asked to vote for the best intros. Afterward, each author
is given time to write a “round”. The author has to write the round before the time elapses. The author can skip is round. Each user will have 3 rounds maximum then the “outro” is reached. Everybody votes for the outro just like the intro then the story ends. During the story, the authors have access to a preview screen to look at the story as a whole.