You can download Binary Packages or Source Code of Silicon Empire 1.8 from available below links. Also we put silicon empire source codes on git that you can download last unstable source from this repository.
Important: Silicon Empire Mac OS X Version not released yet, but you can compile silicon source on this platform manualy. We Hard working on this versions and try to make available silicon mac os x version soon.  

Binary Packages:

  • Ubuntu 11.10 (oneiric)

    amd64 – i386

  • Fedora 15

    Not Available Yet.

  • Arch linux (Thanks hobarrera)

    AUR

  • FrugalWare (Thanks Melko)

    Here

  • Windows Installer

    Pre Alpha

  • Mac OS X Package

    Not Available Yet.

Source: