The Luminaire

The Luminaire is a dimension in the Unnamed Show that first appeared in Game Night. It is a very empty area with a vast amount of floating islands and a star above.

Lore
The official lore for the Luminaire states, "The Luminaire is a dimension located directly under Game Game's. It has long been used as an area to store unused or otherwise unimportant objects. The location is home to a large amount of floating islands, with some areas marking parts of Game Game's past worlds. Some species can still be found living in such islands. Above the islands, a small star grants light and moderate heat."

In Search for Satan, Midori gives more explaination upon the lore entry, stating how The Overseer decides when pieces of the Game Game dimension would be sent into the Luminaire, and some people are left behind with all of it. Locations from certain eras in Game Game's dimension are considered sectors. In the same episode it is seen that these locations located inside of the sectors are surrounded by a bio-dome like skybox. It is currently unknown if all locations are like this or if it is only a select few.

Game Night
In its debut episode, the crew fall into the Luminaire as Game Game's world is falling apart. No notable locations were shown here, unless the remains of some locations shown earlier in the episode are counted.

Search for Satan
Satan is taken to the Luminaire by the cat, and he is taken to the first sector, which consists of Game Game's first universe, and some people from multiple different time points.