The multiplayer expansion pack. Official info: Sid Meier's Civilization III: Play The World expansion pack includes three different Internet and LAN multiplayer modes: Turn-based, Simultaneous, and for the first time in a Civilization game, a Turnless Mode. Civilization game fans can now face off in more intense, fast-paced games like Elimination, Regicide and Capture the Flag or play a more traditional Civilization-style game. The expansion also supports "Play by Email" and Hotseat games and includes multiplayer scenario support.

The Play the World title also expands the Civilization game experience by adding eight new civilizations, each with its own Great Leader and unique unit. It strengthens the game's strategic options with map features like airfields, outposts, and radar towers. The new pack also streamlines gameplay with interface enhancements for tasks like espionage and auto-bombardment. As well, its scenario editor, complete with specialty units and two new terrain sets, empowers players to create scenarios from any time period.

Updated to the 1.29f version
Official info: This new version of the Sid Meier's Civilization III core game includes the "Making of Civilization III" video, a keyboard reference card, and other content designed to give players enhanced Civilization game enjoyment.

The "classic" civ3 game