Really love these. Such a unique take on the theme. Gives an eerie feeling of exploring a completely alien ruin on another planet where you won't know what to expect around the corner. The bitcrushed sounds also give me the feeling that you're piloting an old spaceship, like it's just barely holding on.
I can't really think of any huge criticisms but I guess one detail you could've tried was to tie all of these tracks together with some sort of recognizable theme, like a small melody that would come in briefly or a distinct instrument maybe?
Anyway, amazing tracks!