Athena Sword is the first expansion for the PC version of Raven Shield. Athena Sword builds upon the original by adding eight new missions, five new multiplayer missions, three new multiplayer gamemodes, and seven new weapons. Athena Sword was developed by Ubisoft-Milan and released on March 9, 2004. A Mac port was released on November 23, 2004. Athena Sword was packaged with the original game as Tom Clancy's Rainbow Six 3 Gold Edition in 2004.