You did manage to create an atmosphere and intriguing story :)
I would have added a trick so players can make mistakes and die/loose but maybe you didn't have time. I'm also learning solo dev, that's so much work ! And I don't know how you can learn coding AND 3d modelisation together that seems to be a lot of work :o
ps: I hated the young man so much I wanted him to be the deamon so I could bust him grrrrrr