Sid Meier's Civilization V is a 4X video game in the Civilization series developed by Firaxis Games, released on Microsoft Windows in September 2010, OS X on November 23, 2010, and Linux/SteamOS on June 10, 2014. In Civilization V, the player leads a civilization from prehistoric times into the future on a procedurally generated map, achieving one of a number of different victory conditions through research, exploration, diplomacy, expansion, economic development, government and military conquest..