Found a world. Write its laws. Let everyone write in it.

Every world on this board belongs to the person who founded it. Founders give it a picture, a description and its laws. Everyone else writes stories set there, one chapter at a time.

Found a worldAdd a picture of it and describe it in as much detail as you like.
Write its lawsUp to twelve rules that every story set there has to follow.
Write stories in itPost a story, then keep adding chapters to it.