br Crusader Kings II is a grand strategy game set in the High and Late Middle Ages developed by Paradox Development Studio and published by Paradox Interactive as a sequel to Crusader Kings. It was released for Microsoft Windows on 14 February 2012[2] to positive reviews. A Mac OS X version, Paradox Interactive's first in-house development for Mac OS X, was released on 24 May 2012.[3] The game contains numerous historical figures such as William the Conqueror, Constantine X Doukas, Alexius I Komnenos, Harold Godwinson, Harald Hardrada, El Cid, Richard the Lionheart and Saladin.