Just tested it, and both the Mac and PC versions downloaded for me like a charm from itch.io, so I think this might be an issue with your PC specifically. Note that if your internet connection gets disrupted, it can make the download fail. Also, the files are marked as 18+ content, so if you have any settings that disallow NSFW downloads, that could affect the situation, too (although I am not an itch.io expert, so take this with a grain of salt). We do not currently have a version available for tablets/smartphones, so if your "PC" is actually a tablet, that would also be an issue. We unfortunately do not have the bandwidth to create and maintain an app version of this game...