Google says that some users may need the developer to tick a few check boxes to signal some OS's to recognize some designated files. Can you try downloading again?
its stuggling to compute space requirements but that not the game itch just does that in my country on occasion. it says the files are there now though so once itch stops being dumb ill redownload and play it, thank you kind dev
Make sure to hit the option that says ‘Public Win’.