For questions related to the concept of a shared universe or world where more than one writer (or other artist) independently contributes.
A shared universe or shared world is a set of creative works where more than one writer (or other artist) independently contributes a work that can stand alone but fits into the joint development of the storyline, characters, or world of the overall project. It is common in genres like science fiction.
It differs from collaborative writing where multiple artists are working together on the same work and from crossovers where the works and characters are independent except for a single meeting.
