Unfortunately the Linux build seems to be a Windows build running in WINE.
I can assure you, the Linux build is most assuredly a Linux build. I do my work on Linux and that is the first build I run.
I test the Windows build (which is it’s own, independent build) via WINE.
Is there an error you are encountering?
I will admit that, as a game written for a jam, TacCom was not as fully tested as I would have liked, but I know that, at least as far as the machines I’ve tested, the Linux and Windows builds run.
I have no idea about how the itch.io client works, as I only use the website. On the website, there is a Linux exclusive download (which is in .tar.gz format) and a Windows exclusive download (in .zip format). Perhaps the itch.io client only handles .zip filetypes? (I’m pulling that out my backside).
I just downloaded the Linux download and double checked… it is definitely the Linux build.
I just tried again. At least the client has the Windows-Version pre-selected for some reason. Now I selected the Linux version and it works. Must have missed that yesterday, sorry for the fuss. Not quite sure how to tell it to offer up the Linux version. Pretty sure it works correctly through Butler but not sure how it works with manual uploads.