If you haven't read this yet, give it a read through. There's so much more under the surface from what you just see and that's what I've come to love about it. Someone more informed than myself turned me onto this and it's awesome to think about - a 4 hour VN with 2 years of work? Seems excessive. With all these Easter eggs setting us up, I can only hope that this was a 4 hour prequel for something bigger, better, and darker to come.
https://www.reddit.com/r/ARG/comments/71z2pt/doki_doki_literature_club_has_more_to_it_than_we/
RE: My Random Thought on Doki Doki Literature Club! Achievements