FreeGameDev

I recently downloaded the zip file Mirror 2 (freeciv.org), which I thought would allow me to unzip and install. But, there is no .exe or install file. Have I downloaded the wrong app? Where (address) do I download the pc app? Thanks.

This forum is about the browser based version that doesn't need a download.

But it seems like you tried downloading the source-code.
Go here: http://www.freeciv.org/download.html
And scroll down to Windows binaries.

The easiest way to play Freeciv is here: https://play.freeciv.org/