I've been stuck here for some time, and I believe I am able to decipher some of its oddities. It seems that this place is a sort of "out-of-bounds" for the universe. I don't believe that our world is a simulation, but I do believe there is more to it than we are aware. Like a game developer, God has created this place to develop and test pieces of our world, as well as other worlds. There are things in this space that defy all reason, and I can only conclude that they must come from some other realm. God created our world, yes, but who's to say He hasn't made worlds beyond ours? It appears that these back-rooms are a waypoint, connecting the infinite realms into one space for God to "playtest". It explains why some common items are found everywhere, but other things exist only in this realm. Perhaps, these things do not exist only in this world, but exist as common things in another universe. Essentially, our world is only one chapter of God's "game", and there are many other chapters all connected by the out-of-bounds, the dead space. These back-rooms weren't designed to be a space, but they are the literal abscense of space; they are the in-between.