Aspyr Media’s GameAgent.com digital distribution site has added the strategy games Civilization IV, along with its Warlords and Beyond the Sword expansion packs, and Civilization III: Complete. All are available for pre-order now, along with Star Wars The Force Unleashed: Ultimate Sith Edition, which is currently on retail store shelves.

Civilization III Complete features the Play the World and Conquests expansion packs. The former added online multiplayer functionality to the venerable strategy series started by designer Sid Meier in 1991.

GameAgent began life as a utility that allowed Mac gamers to see if their computers were capable of running Aspyr’s titles. It later evolved into a digital download store, albeit without the ability to purchase games through the software, which was discontinued. While the PC side of GameAgent offered more games initially, the Mac side has caught up in recent months with the addition of Call of Duty Deluxe Edition, Callof Duty 2, and the standalone game Civilization IV: Colonization.