Unlike the geographic area of Europa Universalis IV, which spans the entire world, Crusader Kings focuses solely on the activities of Europe, north and east Africa, western and central Asia and the Indian subcontinent. The Old Gods and Charlemagne DLC expansions allow the game to extend its time span, beginning with the years 867 A.D. The effect of CK2 incubation time (A, ), CPY digestion, incubation. (which was historically the year Constantinople fell to the Ottoman Turks and the Hundred Years' War concluded between England and France, but game play will result in a highly different world by that point). I blame the AI : Ck2 -Eu4 observe game : paradoxplaza, eu4 ck2 orthodoxy. (the year of the Norwegian and Norman invasions of England) to 1453 A.D. The game covers the historical era preceding the Europa Universalis IV period. It is the sequel to the original Crusader Kings released in 2004. Mostly irrelevant for newer games which include the "nudge" editor.Crusader Kings II is a grand strategy game with RPG elements published by Paradox Interactive in 2012.