Freeciv
From Civilization
Freeciv is a multiplayer strategy game, originally conceived as a clone of Civilization for UNIX-like systems. It is Open Source software released under the GNU General Public License. Its development started in 1995, with version 1.0 released in January 1996 which makes it older than Civilization II.
The game can run in Civ1 and Civ2 compatibility modes, that tries to closely emulate Sid Meier's commercial games. However, its Default mode deviates significantly from the classic games' rules, borrowing concepts from later "Civlike" and other strategy games.
The domain freeciv.org was registered in 1998 and the Freeciv website is considerably older than Wikipedia. The website has been hosted on Wikia since January 2007.
