I really enjoyed playing the game. Loved the setting and world building.
The characters are all well written and interesting, all having unique ways of talking. The plot had a good pay off and ending. The art was perfectly fitting. Stelivia was awesomely creepy, I got spooked for good. I liked that it had background music though I would have loved more ambient sounds maybe.
For some technical props, it is only a tiny 70mb download on PC even though it has quite a few backgrounds and sprites. Good job!
By the way, you can mark Linux support on the PC version as Renpy supports both (and I can confirm it runs well on Linux). You also forgot the deactivate the debug thing.
An all around good experience so not really much to criticize.
Thank you for making this game!