Other Stack Exchange sites often have a clever name for their main chat room. For example Code Review has "The 2nd Monitor" and Programming Puzzles and Code Golf has "The Nineteenth Byte".
What should we call our Worldbuilding chat?
"White Mice Lounge" in reference to Douglas Adam's Hitchhikers Guide to the Galaxy, where the white mice are credited with creating earth.
Following on from @MontyWild 's Douglas Adams suggestion what about
The Factory Floor?
From Slartibartfast line to Arthur "Welcome to our factory floor" (where they build the planets).
WoldBuilding: The Factory Floor
As I just got the Room Owner mantle automagically appointed me, I'm going with Worldbuilders' General Chat for now. Reasoning: It's obvious what SE it attaches to without being confusingly similar to the SE main site's name.
I like the idea of a more "clever" name, and will occasionally return to this space to see what the gestalt thinks up as our site's identity congeals.
I think that the best name our chat could have is the one it already has - "Worldbuilding". This makes it immediately obvious that it is the right chat room and helps ensure new users can find the chat and participate as early as possible. I think our community will benefit from maximising communication with new users.
"The Drawing Board" in the metaphorical sense as used in "back to the drawing board".
To carry on with the Douglas Adams quotes begun by MadMAxJr, the white mice may have commissioned Earth, but Magrathea actually built it.
So, "The Magrathean Watercooler"
The Demiurges’ Lounge (or something else involving demiurges)
I will leave it to Wikipedia to explain the concept of the demiurge, which fits worldbuilding very well in my opinion. While a concept of gnosticism, which can be considered a religion, I would be surprised if anybody were offended by this.
I think something like World Architects or Blueprinting for Worlds could work.
Maybe even Fictional Realities or something along those lines.
"the first day" As i just said on the Chat in reference to the bible "at the first day, god made the earth". would be controversy but also a bit funny.
General discussion about Code Review -> http://codereview.stackexchange.com
; ours could certainly be similar. $\endgroup$