I never saw the grey area and the UFO as really being connected. The UFO is on the very first non-digital plan I made for
Eurydice (I have maps of the Overworld and the Land of the Dead drawn in pencil in a massive sketchbook which has since been scribbled all over by my nieces and nephews) and I think I initially decided to put it in there because I wanted to include a technological environment - my first level,
The Coming Dark, had by its concept let me blend mechanical and natural areas with abandon, and I wanted a little of that in this. I also wanted a high-tech area to introduce the hologram, since as a machine it was out of place with the fantasy setting.
I look back and consider it to have been a bad decision; it doesn't fit with the rest of the level and I hate the backstory I had for it being there.
...it's supposed to be an alien planet?
So is it an "upside-down" version of the real world, maybe an alternate timeline where the aliens crashed and things went south?
Or is it the far future or past, where in the far future an alien ship lands on a grey, dying world, and you can access it from Hades because death is timeless?
These are all great ideas and better than the one I had! Take your pick; I vote for the last one!
After all, all the world lies beneath the Grey River.
The grey area wasn't on the original plan and as I recall, I decided to include it at about the same time I put it in. I needed to fill the gap between the King's Hall and the UFO. But I saw it as a shadowy illusion of the world the mother came from; I liked the effect though it's too hard to work out how to progress and I think it caused a lot of frustration for people. I felt very vindicated when you posted in this thread and said how much you loved that bit, how it tricked you into thinking, briefly, that you had made it home. To be honest, I was more worried that people would be annoyed that I'd duplicated screens and think I'd just been lazy, so I'm really glad it became such a significant part of the story for you.
So there you go; the thing that was in the plan from the start is the only bit of the level I strongly regret, and the spur-of-the-moment addition worked out really well.