<P> While the first seven games were loosely based on Greek mythology, this installment takes the series to Norse mythology, but predates the Vikings . Six of the nine realms of Norse mythology can be explored . The majority of the game takes place in the realm of Midgard, inhabited by humans and other creatures and is the same realm that the Greek world had existed in . As more creatures began appearing, many humans fled . Other realms visited as part of the story include Alfheim, the mystical home of the light and dark elves, Helheim, the icy land of the dead, and Jötunheim, the mountainous land of the giants . Other explorable realms include Niflheim, a realm of poisonous fog with a maze - like structure of rewards, and the fire realm Muspelheim, featuring the six Trials of Muspelheim; completing each trial grants rewards and advances Kratos and Atreus closer to the top of a large volcano . Access to the other three realms--Asgard, home of the Æsir gods, Vanaheim, home of the Vanir gods, and Svartalfheim, home of the dwarves--have been blocked by the ruler of Asgard and the Æsir gods, Odin . At the center of the realms is the mythical tree Yggdrasil, which connects each realm together . Although each realm is a different world, they simultaneously exist in the same space . Travel to and from realms can be done by the use of the Bifröst from a root of Yggdrasil contained within a temple located at the center of the Lake of the Nine . The temple was created by the now dead Týr, a peaceful God of War who had traveled to other lands and learned about their mythologies; Odin had him killed as he believed Týr was secretly aiding the giants and would try to overthrow him . </P> <P> The protagonists of the game are Kratos (voiced by Christopher Judge) and his young son Atreus (Sunny Suljic). Kratos is a warrior originally from Sparta who became the Greek God of War and is the son of Zeus . After ending up in Midgard, he met his second and now deceased wife, Laufey (addressed as Faye), and they bore their son, Atreus, who does not know about Kratos' past or his divine nature, but can hear other beings' thoughts . The main antagonist is the Æsir god Baldur (Jeremy Davies), the brother of Thor, whose sons Modi and Magni (Nolan North and Troy Baker, respectively) assist Baldur . His parents are Odin and the Vanir god Freya (Danielle Bisutti). Freya tried leaving Odin, as she did not truly love him, and Odin had her banished to Midgard, after which she became known as the Witch of the Woods . To protect her son from a prophecy that foretold his death, Freya cast a spell of immortality on Baldur, which also caused him to not feel pain or any feeling of pleasure, which he resented her for . The only thing that she could not prevent from breaking the spell was mistletoe, which she kept secret . Other characters include Mímir (Alastair Duncan), who claims to be the smartest man alive, and the Huldra Brothers Brok (Roger Craighead) and Sindri (Adam J. Harrington), a pair of dwarves who appear at various points in the world and assist Kratos and Atreus with forging new gear . Their weapons, including Thor's hammer Mjölnir, were used by the Æsir gods and they also had forged Kratos' Leviathan Axe, which originally belonged to Faye, who also gifted Kratos his Guardian Shield . The spirit of the Greek goddess Athena (Carole Ruggier) makes a cameo appearance, and Zeus (Corey Burton) appears as an illusion to Kratos in Helheim . </P> <P> Many years have passed since Kratos took his vengeance against the Olympian gods, and he now lives with his young son Atreus in Midgard . The game opens following the death of Kratos' second wife and Atreus' mother, Faye, whose last wish was for her ashes to be spread at the highest peak of the nine realms . Before beginning their journey, Kratos is confronted by a mysterious man with godlike powers . After seemingly killing him, Kratos and Atreus set out on their journey . </P> <P> Reaching the Lake of the Nine, Kratos and Atreus encounter the friendly World Serpent, Jörmungandr . After running into impenetrable black mist which can only be extinguished with the Light of Alfheim, they receive aid from the Witch of the Woods to use the Bifröst in order to travel to Alfheim and secure the Light . Upon vanquishing the mist and reaching Midgard's peak, they overhear a conversation between the mysterious man, revealed to be Baldur, his nephews Modi and Magni, and the imprisoned Mímir . After they leave, Kratos and Atreus confront Mímir, who reveals that their goal is actually in Jötunheim, but travel there has been blocked to keep out Odin and Thor . Mímir, however, knows another passage . He instructs Kratos to cut off his head and have it revived by the Witch of the Woods, revealed to be Freya . Kratos immediately distrusts her, but both Freya and Mímir warn him that he must tell Atreus about his true nature . </P>

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