For running on Linux (Arch, at least), I found that I needed to do the following to run the "Game" file:
1) To make the file executable, in the folder where you extracted the vn, run:
$ chmod +x Game
2) Install gconf. I was able to find it in the AUR.
3) It now complains about SUID Sandboxes. I think this is some sort of Chrome thing, and as I do not want to install that, I found this workaround script from Medium. Scroll down until you find the code, paste it into a new file, and run:
$ chmod +x [your-file-name].sh
$ sudo sh [your-fille-name].sh
and then reboot.
4) Running the following, the VN should now work:
$ ./Game
Reading some previous comments, Game might not be the right file. Game.desktop runs the nw file, and that requires libnode (I think), but it has been compiling since I started writing this, and I don't want to wait any longer lol
I hope that worked for someone out there! If not, maybe try wine, or look into libnode? The game was performing poorly for me, so I unfortunately can't read it. Though I'm sure it's a very good novel!!!!!!