The Windows version of the game uses NW.js to wrap the original .html file into an .exe using Chromium, and so an NW.js bug will make attempts to sync with Google services.
It can be scary when an itch or Steam game can throw up an alert like this. Unfortunately, the existing fixes for this issue are not working with the latest versions of NW.js and it has affected many other developers that also use NW.js.
Fortunately, both the Windows and HTML versions of the game are still 100% functional offline!
