itch.io

The "HorrorRomance-3.0-pc.zip" should work for windows and linux (it has an .exe and a .sh), it usually does with games here. Sadly when I dowloaded it I wasn't able to open it in linux. I'm not sure if it's a problem just for me or there's an error in the file. I hope there's a solution tho. (You can always use something like proton in steam or wine/bottles/etc to open the .exe)

Hope I helped and that you are able to play it, it's a great game^^