on 27 March 2014
As with the Brave New World Expansion Pack, the Mac version works with Windows as well, just copy the code sent to you in your confirmation email into Steam to save yourself £10.
As for the expansion, it simply improves Civilization, so if you enjoy Civ 5, then you'll probably enjoy this expansion pack.
on 27 November 2015
Does not work. Rubbish customer service.
Purchased the original long ago via the Apple Appstore. Bought the dlc via amazon to revive the game. You have to use steam which is an absolute crap company without proper customer service. Steam will not even let me download the dlc although i installed the main version in steam. It keeps nagging that i do not have the original, where i paid 30 pounds for 2 years ago and which I activated in steam. Not as advertised. Absolute rip of, want my money back.