Niflheim God of War

As mentioned, there are one more realm to be unlocked via rune cyphers (collected throughout your journey) This land is famous for its treasure and deadly mist - Niflheim Claiming the last cypher pieces for this realm also award you the trophy Trilingual - As the name indicate, you, or more precisely - Atreus is able to read the runes lies on the top of eight bridges entrances.