itch.io

I used this tool https://github.com/bruvzg/gdsdecomp

I have some Godot Engine background so it allowed me to make sense out of the output. The only thing I had trouble with were the STEX files which I didn't even try to convert to readable formats due to the lack of time. I doubt that there's anything worth looking for anyway so I'm going to leave it as it is.

It's not peiyx://ehl.vnzz.vp/riitn but rather peiyx://ehl.vnzz.vp/riitns

This is the result of the decryption https://www.miro.gg/maxeen. It leads to this video.

I've taken measures to reverse engineer the project. I imagine the author expects someone to do so because of the message you get once you die. (If this is in fact not the case then please delete this reply or notify me so I will do it myself. I'm not sure how itch.io goes about editing/deleting posts like mine.)
Anyway... Line 98 of link.gd happens to contain the body of the establish_link() function which looks like this

func establish_link():

    if 1 == 0:

        print("If Earth's crust rings like a bell")

        print("And the forest does not wish you well")

        print("And if time flows another way")

        print("Then the Chatae has been here today")

As far as my knowledge goes, this method is not called anywhere although I may be wrong considering some of the scripts are built-in onto world objects which I have not looked into yet. The function itself doesn't do anything as the only code is executed under a conditional statement that never will return true (this reinforces my belief that the author expects someone to reverse engineer the project).

I'm really not sure what to make of the messages contained inside the function. Personally, I consider it a part of some puzzle that someone may stumble upon in the future.