I'm afraid I have never tried to use the itch launcher nor do I know how it works. The best I could do would be to recommend downloading the files and manually installing. It's only a renpy game so installing is very simple.
i did do download from site. just thought would say this was a thing. looking apparently won"t appear on the itch app cause they were not tagged with the OS they are for. not sure where you put these tags. think found a way to ad in app for me though maybe.
