Nope, I downloaded the Android version and it downloaded a zip file.
That can't be right. It says right there that it's an apk. Sex Strike Android 0.8.0.apk
I pressed the one with the Android icon and it gave me a zip file, if that's not supposed to happen I wouldn't be surprised. I've been getting some insane amounts of "not supposed to happen" bugs and shit related to technology
Should I just keep downloading it until it gives me the right file type?
Possibly. I wish I knew what to tell you to fix it.
Just rename it from .zip to .apk
I've seen this happen with other games, try changing the .zip to .apk manually