Zombienomicon TM Eisegesis is a write your own / choose your own shared novel website. Other than the copyrighted stuff from the accompanying graphic novel it’s a free for all.
Dedicated story hubs so far:
DOCTOR WHO FAN FICTION: https://thezombienomicon.com/eas/read.php?episode=63
Philip K. Dick at Disneyland online version: https://thezombienomicon.com/eas/read.php?episode=385
SCIENCE FICTION / SCIENCE FANTASY hub: https://thezombienomicon.com/eas/read.php?episode=12