The 2018 God of War game brought life to Norse mythology in the same way the previous games had for Greek mythology. Central to Norse mythology, and to the game, are the nine realms, although players could only explore six of these in the game. Surviving information about these realms isn't necessarily explicit about their nature and specifics, but from information that does exist, and the lore that God of War developed, it becomes more apparent what role these realms might play in the next game. Santa Monica has confirmed that the final three realms will feature in God of War: Ragnarok, and so they offer some insight into what Kratos and Atreus will be up against in the upcoming game.