Free Orion is an open-source, platform independent galactic conquest game in the tradition of the Master of Orion games. The game is currently playable, but probably only fun to the more hard-core fans of the genre. Many features have been implemented, but many others are not. Much of the content is provisional, and unbalanced. In other words, it'll be a while till it is finished. See the Roadmap (https://www.freeorion.org/index.php/Roadmap) for the big picture on our progress.
WWW: https://www.freeorion.org/