FreeOrion is a multiplayer, turn-based strategy computer game, inspired by the Master of Orion series. It is free software under the GNU General Public License. It is a 4X game (explore, expand, exploit, exterminate), incorporates the nation-building elements of games such as Europa Universalis 2 and features a versatile tactical combat engine. While its modular, open-source design allows for a significant degree of customization of the game engine and the story elements by the community, the FreeOrion team is dedicated to the construction of a living, breathing universe in a 'grand campaign' model.
Currently (v.0.3) the system does not support computer-based opponents to any significant extent but future development is anticipated.
With the release of FreeOrion 0.3 on December 18th, 2005, a significant portion of FreeOrion's foundation is complete. The FreeOrion development team is now focusing on the FreeOrion Tactical Combat Engine, and on providing content for the new Research and Production systems developed for v0.3. Future releases will include alien races, diplomacy, spying, and artificial intelligence. For more information, consult the FreeOrion roadmap