A written game of exquisite corpse.

This collaborative storytelling game starts with the user creating a story tree.
At its root, it has the beginning of a story, such as

Once upon a time

Other users can add a sentence to it.
A story tree can branch out into many different stories that spin off into substories.

• Create a story tree.
• Invite their friends to collaborate on a story tree.
• Continue any story from where their friends left off.

• A story tree is a tree where the beginning is the root node, and every subtree is a story.
• Users can add a new node, a sentence in the story.
  They can add it to any node that is not their own.
• Users cannot delete or edit nodes.