: If purchased on Steam, the game is installed directly through the Steam Library .
: It contains the equivalent of the original Gold Edition , which includes the Deluxe Edition , the Acceleration expansion pack, and both official Service Packs (SP1 and SP2) . Technical Improvements : : If purchased on Steam, the game is
: Manual zip files like the one you mentioned are often used for: Backup/Portability : Moving game files between drives. : If purchased on Steam