This is really cool. I played until chapter 4 (Explore). I really like how the story and mechanics unfold slowly as you just wander around. I liked reading all the notes and seeing how it was building up towards something strange and interesting. The music and ambience and visuals were pretty good too. My biggest suggestion would be to change the action button to W instead of E. I think ASDW are pretty standard and people are used to those 4 buttons. I kept tripping up because I wasn't used to hitting E. But otherwise I enjoyed it and thought it was very clever. I was sad when (spoiler alert) I had to kill the other butterfly I found that was flying around with me.

This is great feedback, thanks! Yes, I think you're right. I'm planning a new tutorial and hope to have it out next week!