Crusader Kings III is a grand strategy role-playing video 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), featuring similar gameplay, centred around historical bloodlines and dynasties. The game was released on PC on 1 September 2020 and on the Xbox Series X/S and PlayStation 5 on 29 March 2022 in most regions. The game received favourable critical attention, and has sold over 4 million copies as of April 2025.