Aspyr announced on Tuesday that Civilization 5: Brave New World, the newest expansion for the strategy game, is now available for the Mac. The expansion adds nine new civilizations—Assyria, Brazil, Indonesia, Morocco, Poland, Portugal, Shoshone, Venice and Zulu—to the game, as well as, "international trade and a focus on culture and diplomacy." There are new units and buildings, a new Culture Victory, a World Congress, international trade routes, new Wonders, and new scenarios. That sounds pretty cool, and if I'm not around as much, you'll know why. The expansion is priced at US$29.99.