Understockholm was a larp run in Stockholm in september 2012, inspired by Neil Gaimans novel [http://en.wikipedia.org/wiki/Neverwhere_(novel)].
No characters or plotlines from the original novel were used, except the concept of the floating market.
==Collaboration==
In a collaboration between Understockholm, Mobile life's researchproject Codename:Heroes and Stockholms Stadsbibliotek a group that were not players visited the larp in a bus as part of thier experience that day. http://www.understockholm.se/?page_id=477