A press release was issued today confirming that 2K Games and Valve have agreed to integrate Steamworks with the upcoming Civilizaiton V for all PC versions of the game.

In addition there will also be a special "Digital Deluxe Edition" released by Steam that will include a free map pack. Expected features will include Steam Achievements, downloadable content, game matching, auto-patching, and more. Civilizaiton V will expand players' horizons to include Nebuchadnezzar II (c. 630 - c. 561 B.C.). Taking the helm as as the King of Babylon, gamers will enjoy special Babylonian Bowmen units under their command.  The Deluxe Edition will also include an in-depth "Behind the Scenes at Firaxis with Civilization V" video feature, as well as the game's epic soundtrack.

Gamers who pre-order any version of Sid Meier's Civilization V from Steam will receive the downloadable bonus content, Cradle of Civilization Map Pack: Mesopotamia, for free when the game is available. The map pack will let players experience the traditional Western and Middle Eastern "Cradle of Civilization." The pack will include the Fertile Crescent with the Nile River valley to the west and extending east down the Tigris and Euphrates river valleys to the Persian Gulf. Leaders will be able to explore new terrain, cultures and conquests.

For those who can't wait for the immersive experience of Sid Meier's Civilization V, 2K Games is offering a Steam-wide sale on all previous Civilization titles for a limited time beginning today. Sid Meier's Civilization V is not yet rated by the ESRB. For more information on Sid Meier's Civilization V, please visit www.civilization5.com. 2K Games is a division of 2K, a publishing label of Take-Two Interactive Software, Inc. (NASDAQ: TTWO).