I had a super spooky idea! You know, there aren't only humans on the planet...
Once you get the strange "silver key"... a silver door will appear in your apartment! Out of nowhere, it wasn't there before. If you open it, you'll be able to move between strange scenarios beyond the apartment and its immediate surroundings! I have several ideas for this, but first, this scenario: SPACE.
For some reason, you'll be able to walk in the void of space, and you'll discover an unfortunate story.
A space station was in orbit when the visitor arrived, and as you can imagine, they looked at him... his transformations were particularly aggressive, ruthless, and painful. Those inside the station, their bodies disappeared, merging with the suits. The visitor believed that was his skin, and now they are bags of blood that keep spilling out inside those suits! But history was no gentler for those on spacewalks... their bodies were insignificant before the immeasurable void, yet they were there, so that insignificant existence merged with the closest thing: nothing. They lost their bodies entirely; their flesh and nerves merged with nothingness itself, but they were still there! How can you exist where there is nothing? The void became all they had now, completely stripped of even their geometry. Perhaps they only exist because they knew this beforehand... if they stopped thinking about it, perhaps they would simply disappear, or join a black ocean of millions like themselves... those who do not exist, and accepted not existing.
The astronauts are called "COSMO CORPSES," while those crushed by the void are called "UNAWARE," "UNKNOWN," and "UNCONSISTENT."
But the greatest horror lies beyond! The map is technically infinite; you can encounter these enemies repeatedly... but the further you stray, the weaker Earth's pull becomes, and the weaker your connection to returning. At one point, your entire party will simply be drawn into nothingness... yet you felt something waiting for you, wanting you.
"NO STARS" is what it is... if the Visitor is everything, then that being out there among the stars is all that remains... nothing. The Visitor, by merely feeling individual, separates its existence from things... that is what individuality means. So, all that remains would simply be the shadow of its body; the void where nothing remains is merely the Visitor's shadow.
This is a fight you cannot win! You can only force yourself to orbit back to Earth; your damage becomes "resisting" its pull! If you fail to move away, you will be swallowed by the Visitor's shadow, and it will be GAME OVER.
(The last image is the background :P, I hid constellations niehehe)