Assassin’s Creed is a mostly-historical series, but its sci-fi meta-story offers plenty of opportunity to delve into mythology, too. Assassin’s Creed Valhalla draws from an especially robust mythology, and it seems that the game will be taking full advantage of it. You’ll be able to visit realms like Asgard and Jotunheim as part of a ‘vision quest’.
“Mythology [and religion] was present in everyday life for the Norse at this time,” game director Eric Baptizat tells us in an interview. “An interesting [result] of that is the line between myth and reality is blurred – everything that happened to people was explained as being sent from the gods. So we play a lot with this, and you’ll see many elements [of life] as they correlate to Norse mythology.
“Take Valka, the seer. She is a kind of shaman, and when you build a hut for her in your settlement, she allows you to go on a vision quest in which you’ll visit some of the worlds of Norse mythology. So you can access Asgard and Jotunheim.”
Original source: https://www.pcgamesn.com/assassins-creed-valhalla/asgard-jotunheim