By the moment I have find this in the archive unity default resources: AGL2lau luyl. I don´t know if that's even correct but didn't work as a password for opening WebsitePassword.rar.
Besides that, I like the Commercial video with that thing of He will Ascend and that logo. I hope I could have discovered more.
Also, in the READ ME.txt sais that there's something in the ''game'' but I haven't found it, not even walking, flying or going underground. Maybe that something is positioning yourself in a certain place so you can see an specific shape on the ground but idk.
Anyways I liked the idea of having to explore in the files. A nice experience.
P.S: I found three links in an archive but they don't work when I google them, idk if that's relevant.