Crusader Kings II stood out from earlier Paradox games in that it attracted a more widespread audience, contributing to the growth of the company. A sequel, Crusader Kings III, was released on September 1, 2020. On October 19, 2019, the game became free to play. Set in the Middle Ages, the game was released on February 14, 2012, as a sequel to 2004's Crusader Kings. Crusader Kings II is a grand strategy video game developed by Paradox Development Studio and published by Paradox Interactive.