This world download is for my survival world, Techtropolis, which I have been actively developing since June 12, 2013. This is an old version - version 1.5 in fact (which equates to session 100), completed on November 7, 2014. Any and all additional information for this world can be found here, in the event that you are interested.
This download has been released as part of the Season 2 mid-season finale (session 150), and incidentally as a Christmas gift as well! Have fun playing around with it!