Yggdrasil (Igudorashiru) is the name of a fictional character in several iterations of the Digimon franchise, named after the world tree from Norse mythology. It primarily factors into the backstory written for the Digimon virtual pets and card game, which is a background storyline that is less prominent and often contradictory to the various anime. It appears as a character in Digital Monster X-Evolution and Digimon Data Squad.
In the continuities it appears in, although always presented as being very mysterious and powerful, Yggdrasil is the master computer that controls the Digital World, the otherworldly realm home to all Digimon. Due to this position of power, it is always presented as the "god" of the Digital World, overseeing its survival and, in some cases, destruction.
In two of the continuities in which he appears, Yggdrasil has command over the majority of the thirteen Royal Knights.
