Yggdrasil

He who increaseth knowledge, increaseth sorrow.

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"From the life-tree we go, the the life-tree we shall one day return. "

―Odin^[src]

Yggdrasil is an ancient Isu supercomputer which was built by the Isu as the Seventh Solution to the Great Catastrophe.

Functionality

Yggdrasil is an ancient Isu Supercomputer with a myriad of advanced abilities. These abilities include;

Essence Uploading - This allows users to upload their essence into the computer and preserve them.
Reincarnation Inducement - The Yggdrasil is able to reincarnate the people stored in it in human bodies across the globe, similar to a Sage. So far, Yggdrasil managed to reincarnate Odin, Loki, Thor and Tyr. It is unknown whether Yggdrasil had any part to play in Aita's reincarnations.
Simulation Functions - The Yggdrasil also create powerful simulations similar to the technology used in the Animus device.

Appearances

Assassin's Creed: Valhalla (first appearance)

Isu

Notable individuals

Isu	Aita • Aletheia • Baldr • Consus • Fenrir • Hephaistos • Hermes Trismegistus • Juno • Jupiter • Loki • Minerva • Odin • Phanes • Poseidon • Shakyamuni • Surtr • Vejovis • Yaldabaoth

Hybrids	Adam • Eve

Artifacts

Pieces of Eden	Ankh • Apples of Eden (#1 \| #2 \| #3 \| #4 \| #5 \| #6 \| #7 \| Aguilar's \| Akhenaten's \| Gull's \| Korfu's \| Skye's \| Mihšihkinaahkwa's \| Isabel's) • Atlantis Artifacts (Sphinx's \| Medusa's \| Minotaur's \| Cyclops' \| Versipellis') • Codex of Eden • Crystal Balls • Crystal Skulls • Foresight Amulet • Fountain of Youth • Fragment of Eden • Grand Temple Key • Heart • Hope Diamond • Hugr-Rip • Imperial Jade Seal • Koh-i-Noor • Memory Seals (Masyaf Keys) • Mjölnir • Prophecy Disks • Precursor boxes • Rings of Eden (Hnituðr \| Pirate Ring \| Rings of Seth (Blood \| Moon \| Sand)) • Scepter of Aset • Scythe of Eden • Shards of Eden • Shrouds of Eden (#1 \| #2 \| Copy) • Spears of Eden (Gungnir • Spear of Leonidas) • Southeast Asian Pieces of Eden (Crescent amulet \| Lantern \| Lotus disk) • Staves of Eden (Alexander's \| Imperial Sceptre \| Papal Staff \| Staff of Hermes Trismegistus \| Shattered Staff \| Venetian Staff \| Staff of Seth) • Swords of Eden (#1 \| #2 \| Excalibur \| Gram \| Sword of Damokles \| Perseus' Sword) • Trident of Eden • Tui Bei Tu • Vejovis' dagger

Miscellaneous artifacts	Armor (Aegis • Armor of the Fallen • First Civilization Set • Isu Armor • Mythical Warrior • Thor's Set) • Weapons (Atlantean Blade • Blazing Sword • Gae Bolg • Lucius Septimius' flails • Mace of Atlantis • The Samsaama • Shamshir-e Zomorrodnegar • Swords of Fal) • Shields (The Morrigan's Guard) • Ancient beacons • Baghdad Battery • Blood vials • Eye (Antikythera mechanism) • Freya's medallion • Gleipnir • Global aurora borealis device • Iron Man • Isu beacon • Lia Fáil • Manna • Odin's Eye • Prophecy Disk key • Power sources • The Pyramid (Artifact Fragments) • Saga Stone • Saint-Denis Temple key • Salakar • Śarīra • Stone of Scone • Seth-Anat stone • Silica

Human-made artifacts	Animus (Alruh • Die Glocke) • Armor of Altaïr • Buckingham Palace vault • Eagle of Suger • Head of Saint Denis • Mayan Armor • Michel Reuge's Vault • Voynich manuscript

Locations

The Grey • Cities (Asgard • Atlantis • Eden • Eitri • Feyan • Útgarðar) • Lands (Nine Realms • Sister Realms) • Seismic Temples (Arctic Temple • Lisbon Temple • Port-au-Prince Temple) • Temples

Africa	Egyptian Vaults (Siwa Vault • Khesesh Em Sesh Em Eeneb • Eesfet Oon-m'Aa Poo • Eeyoo Sekedoo Aat • Qeneb.too Kah'Aiye • Seshem.eff Er Aat • Oun-mAa Niye Ressoot)

Americas	North American Temples (Chichen Itza Temples • Grand Temple) • Caribbean Temples (Caribbean Vault • Observatory)

Asia	Middle Eastern Vaults (Alamut Temple • Excavation Site • Jerusalem Vault • Northern Oasis vault) • Beijing Temple • Forgotten Temple • Herat Temple • Tosha Khana

Europe	Greek locations (Ancient Forge • Cave of the Forgotten Isle • Gateway to the Lost City • Great Seal to Atlantis • Kephallonia vault • Labyrinth of Lost Souls • Lair of the Sphinx • Petrified Temple • Teichos of Herakles) • Italian Vaults (Colosseum Vault • Pythagorean Vault • Vatican Vault • Venice vault) • Celtic locations (Boudicca Tomb • Cassivellaunus Tomb • Cave of Gold • Freyja's Cave • Hill of Tara • Iona Vault • Isu Barracks • Loch Ness Temple • Manius's Sanctum (Eden Ring Station) • Odin's Vault • Scone Vault • Togodomnus' Tomb • Venutius Tomb • Verica's Tomb • Wayland's Smithy • Shrines of the Valkyrie) • The Forge • Saint-Denis Temple

Culture & History

Culture	Society (Æsir \| Capitoline Triad \| High Council \| Illuminat \| Isu Authority in Eden \| Vanir) • Language (Isu codex \| Isu script) • Titles (Ciphers \| Dikastes \| Father of Understanding \| Messenger \| Mother of Wisdom \| Sacred Voice) • Other (Hidden Twelve)

Events	Isu Era (War of Unification • Human-Isu War • Great Catastrophe) • Assassin-Templar War • Second Disaster • Ascendance Event • Resurrection Day

Science	Physiology (Digital Cognizance Imprint \| Eagle Vision \| Hybrid \| Neurotransmitter \| Isu incarnations (Sages)) • Physics (Calculations \| Nexus) • Projects (Olympos Project \| Project Anthropos \| Solar floral regeneration project \| Six methods of salvation) • Technology (Aletheia's simulations • Hugr-Rip • Isu map • Kolossus • Orb of Hades • Piece of Eden • Precursor relics • Torch of Hypnos • Towers • Vault pedestal • Wireless Energy Lattice • Yggdrasil) • Other (Adamant)

Related	Balor • Dwarves • Elpis • Elves • Instruments of the First Will • Jötnar • Muspels • Order of the Ancients • Phoenix Project • Prize of Cerberos • Prize of the Hekatonchires • Salakar • Sisyphos

Functionality

Appearances

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