From FreeOrionWiki

FreeOrion is a free, open source, turn-based space empire and galactic conquest (4X) computer game being designed and built by the FreeOrion project. FreeOrion is inspired by the tradition of the Master of Orion games, but is not a clone or remake of that series or any other game.

Download FreeOrion v0.4.10 and v0.4.10.1 release candidate builds for Windows or Mac OSX 10.9+

Download FreeOrion Test Builds for Windows, or Mac OSX.

