3 of 3 people found the following review helpful
Great Game, Mac & PC compatible, but you need Steam to play,
Verified Purchase(What is this?)
This review is from: Crusader Kings II Gold Pack (PC CD) (CD-ROM)
Its a great game, very complex but it has got "just one more minute" compulsiveness to it. I have learnt more about the middle ages in the last few days than I ever did at school. However...
I bought the retail CD version as I am not always on Net (some parts of the world still don't have internet connections and hotels can charge a fortune for them) and I use a Mac rather than a PC. Pleased that the game works on both Mac and PC, however the CD version is, in fact, just a Steam client and an activation code for the game and bundled DLC. So, unfortunately you do need to be on Net to play as you activate, download the game, and launch from the Steam client. Also requires that you create a Steam account. Should be in the product description in my opinion.