As of March 26, 2008, Civilization IV has sold 3 million copies according to Take-Two Interactive.
A remake of Sid Meier's Colonization, based on a total conversion of the Civilization IV engine, Colonization, was released on September 23, 2008. A second expansion, Beyond the Sword, was released worldwide between July 18 and July 30, 2007.
The game's first expansion, Warlords, was released on Jin North America and Jin the European Union. Civilization IV was released between October 25 and Novemin North America, Europe, and Australia. It is the fourth installment of the Civilization series. Sid Meier's Civilization IV (also known as Civilization 4 or Civ4) is a turn-based strategy, 4X computer game released in 2005 and developed by lead designer Soren Johnson under the direction of Sid Meier and Meier's studio Firaxis Games. DirectX 9.0c –compatible 64 MB video card with hardware T&L & pixel shader