Rome: Total War is set in the Roman Republic. This was the first game to encompass what would become one of the most fundamental additions to the Total War series, the inclusion of free map movement as apposed to earlier versions where all movement was province based. The first expansion pack, Barbarian Invasion, was released on 27 September 2005. Rome: Total War Gold Edition, which combined the fully patched versions of the original game and its first expansion into one DVD (instead of the original game's three CD-ROMs) was released on 14 February 2006, though a CD-ROM version (a total of four CDs) was also produced for those without DVD drives. A second expansion pack, Rome: Total War: Alexander, was announced on 10 May 2006. It was released on 19 June 2006 as a download and afterward as retail. A compilation of the original game and the two expansions, Rome: Total War Anthology was released on 16 March 2007. A Mac version of Rome: Total War Gold Edition was released 12 February 2010. It is a Mac-native port of the Windows version, developed by Feral Interactive.
Source: Wikipedia, "Total War (series)", available under the CC-BY-SA License.