The latest expansion to Paradox Interactive’s mediaeval grand strategy game, Crusader Kings II, has been dated for the 28th of May, the publisher announced today. The Old Gods allows players to take control of Pagan characters and moves the game’s earliest start date back almost two hundred years.

“We stand only 400 years from the fall of Rome, and a mere 200 from the revelations of Mohammed and much of the world still clings to an ancient code written with iron and blood,” reads the description of the expansion’s new trailer, which you can check out below.

You can find out more about Crusader Kings II on its official website here.