Crusader Kings III is a grand strategy game set in the Middle Ages, developed by Paradox Development Studio and published by Paradox Interactive as a sequel to Crusader Kings (2004) and Crusader Kings II 2012. The game was first announced during PDXCon 2019 in October 2019 and was released on 1 September 2020.
The game, like its predecessors Crusader Kings and Crusader Kings II, is a grand strategy game and dynasty simulator set in the Middle Ages, and will run from the Viking Age to the Fall of Byzantium. Unlike its predecessor, at launch, it only has two start dates: 867 and 1066. Dynasties can form cadet branches that have their own heads and act mostly independently from their parent dynasty. The heads of dynasties will be able to use a new resource known as Renown to assert their control over their house. For example, the heads of dynasties are responsible for legitimizing bastards.4