Spooky! I like a good maze of corridors, and the atmosphere in this one is especially heavy and oppressive. Enough hints at a larger plot to be intriguing. I did find the jumpscares to be a little too frequent, but I think they still work in context. You know that reading a document is going to get you punished, but you're still going to do it anyway, aren't you?
Thanks for including a Linux build, that's always nice to see.