FreeOrion is a turn-based, futuristic science fiction computer strategy game for Windows, Linux and Mac OSX. The purpose of the game is to lead one of a number of races to dominate the galaxy through a combination of diplomacy and conquest while developing technology, exploring and colonizing star systems. The game uses a point-and-click interface as well as keyboard shortcuts to control the management of colonies, technology, ship construction, diplomacy and combat and comes with both single and multi player game modes.