A win.zip yeah, but I have win.rar and that's how the file was downloaded. Does the file type effect it?
I don't know if the game can be played as a compressed file😂
But as far as I can tell, the game is a zip file, whether downloaded from Itch or Patreon, and it requires unzipping to play.
Don't know why I can't post image.
You can find the game installation instructions on the itch download page of the game.