Yggdrasil from Old Norse Yggdrasill is an immense mythical tree that plays a central role in Norse cosmology , where it connects the Nine Worlds. Yggdrasil is attested in the Poetic Edda , compiled in the 13th century from earlier traditional sources, and the Prose Edda , written in the 13th century by Snorri Sturluson. In both sources, Yggdrasil is an immense ash tree that is center to the cosmos and considered very holy.

The Ultimate Online Guide to Norse Mythology and Religion
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Account Options Sign in. Top charts. New releases. Yggdrasil Meeple Board. Add to Wishlist. The Ragnarok has begun! Save the world tree by preventing the evil forces ravaging Yggdrasil! Yggdrasil is a cooperative game in which players take on the Nordic gods Odin, Thor, Tyr, for example. They must join forces and coordinate their actions to repel the invasion of enemies in Asgard. If Evil is defeated, the victory is collective!
Implementation
While the name means the "terrible steed", it is usually taken to mean the "steed of the terrible one", with Yggr the epithet of the god Odin. In other words, Odin's horse, referring to the nine nights he is said to have spent hanging from the tree, or "riding the gallows", in order to acquire knowledge of the runic alphabet. The gallows are sometimes described in Old Norse poetry as the "horse of the hanged. A third interpretation, with etymological difficulties, is "yew-column", associating the tree with the Eihwaz rune. In stanza 20 she recounts the appearance of the three Norns. Stanza 27 is more obscure, with the first two lines of the verse indicating a connection with Heimdall :. Scholars including John Lindow [2] and Carolyne Larrington [1] have suggested that Heimdall may have sacrificed one of his ears in return for his heightened power of hearing according to Gylfaginning he can hear grass growing on the earth or wool on the backs of sheep , depositing it in the well in much the same manner that Odin pledged an eye to the Well of Mimir in return for knowledge and wisdom.
Yggdrasil is an early-stage implementation of a fully end-to-end encrypted IPv6 network. It is lightweight, self-arranging, supported on multiple platforms and allows pretty much any IPv6-capable application to communicate securely with other Yggdrasil nodes. Although Yggdrasil shares many similarities with cjdns , it employs a different routing algorithm based on a globally-agreed spanning tree and greedy routing in a metric space, and aims to implement some novel local backpressure routing techniques. In theory, Yggdrasil should scale well on networks with internet-like topologies. Take a look at the About page for a detailed overview.