Anne wrote a blog post about the game: https://pckingblog.wordpress.com/2020/0 ... e-out-now/
Since he is famous for collecting boxed games, he is selling boxes for this game.
The boxes are made by Gal Shemesh, whose name can be familiar from here: viewtopic.php?p=16673#p16673
He also mentions there are secrets in the game.
I already found one of them (before I found the blog post).
And another thing, although it's likelier to be a bug rather than a secret:
According to the texts I found in the EXEs, there is at least one more hidden secret (or maybe two?).
I also found a slightly funny error message which that game hasn't used so far:
I'm also wondering why are there multiple EXE files.
All of them will start the same game, even though the files are different.