FINALLY DONE. Christ, going through this game was trippy as all hell, and the noise I made during Jenna's Route when Tulpa-Chase WALKED onto scream was something I will never be able to replicate.
For anyone reading this, seriously take the warning messages to heart. Going through Carl's bad route completely on accident for my first play-through fucked me up for way longer than I could've anticipated.
In a way, this VN hit me in the exact opposite way of Adastra. Adastra had me falling in love with Amicus so hard that when the game was over, I felt completely empty and emotionally-drained, while the ending to Echo (specifically Carl's Bad Route Ending, which was my first) left me feeling like I was packed to the brim with emotions and approximately 10 seconds away from vomiting all over my desk. Still, this game was really enjoyable! And I can't thank the team enough for making a really great game.