Civilization 5 content that's been available to your cousins of the Land of Windows for ages. The DLC, which unlocks new civilizations for various prices -- except the Mongol expansion, which is free and installs automatically when running the game through Steam -- is now available for all Mac users.
You can grab the "Mediterranean," "Mesopotamia," "Asia" and "Americas" expansions for $2.99 each (or $9.99 as a bundle), or the "Babylon Civilization pack" and "Spain and Inca pack" for $4.99 a pop (or $7.99 for the pair). Our position on which one you should buy first should be well known by this point, but if not, here's a hint: You should buy the civilization responsible for the music of both Bruce Springsteen and Menudo. That's a cultural powerhouse if we've ever heard one.