Genre : Simulator Homepage : http://www.flightgear.org Install Instructions : just install the following package : flightgear . 9. FreeCol A turn-based strategy game similar to Colonization . Genre: Turn based strategy Homepage: http://www.freecol.org 10. Freeciv A turn-based "Explore, Expand, Exploit and Exterminate" strategy game similar to Civilization . Genre: Turn based