Hi! The developer of Huntsman has stated that the file size of the game is too large to be hosted directly on itch.io. Therefore, they use google drive normally but itch.io doesn't support from external hosters.
Try this:
Click on the download button. This will open a new tab in Google Drive.
Instead of clicking directly on "Download," click on the "Add shortcut to Drive" icon (top right next to the download button).
Add the folder to your own Google Drive account.
Then download the folder from your own Drive to your computer.
I tried this and worked for me. Gl:)