Hi,
we just updated the Window version because we realized that it worked correctly by simple download, but from itch.io app it didn't started. So, if you had problems starting the Windows version from the itch.io app, you can redownload it or delete the WindowsIconUpdater.exe file in the installation folder created by the itch.io app for this game (that file confused the itch.io launcher!)
Thank you for playing!