Just skip to the bottom if you’re only here for the download.
While I was lurking in the Discord channels, someone mentioned Randoms Room. I remembered having fond memories of using that room, since it was so versatile.
There is a small issue though: the rooms inside the metaroom stretch from left to right and thus cannot be “divided” into multiple parts. So if you want to keep a norn in this specific place you have to use a stopperplant or freeze the creature or… figure out something else. Changing the doors between the rooms won’t work because there aren’t any.

I CANT FIX DIS WITH MAGIC WORDS WHAT I DO
I started chatting with xRAINxOFxBLOODx about this issue and decided to create another “testing room” where there’s a bit more variety in room shapes.
xRAINxOFxBLOODx provided the beautiful background for this metaroom. Here it is:

Pretty, right? The room spans 4 floors, of which the upper floors are divided into 2 or 3 compartiments.
As a fun little extra, there’s the option to toggle the room doors so they have a permeability of 100, 50 and 0. A permeability of 50 only allows some things through.

It’s a bit similar to Randoms Room as in it’s just a plain room: no CA, no lifts, no doors, no resources. Just a different lay-out.
Anyways, without further ado, have a download!
— Download Testing Room here! —