Undead refers to creatures that have been killed and later reanimated by magical means, often practiced by necromancers. In most cases reanimated undead do not retain their original soul and as such they are bound to the will of a master—the spellcaster who brought the creature into undeath—and would usually be useless without one, either perishing along their master or continuing to wander without purpose. Though not technically undead, ghosts are often seen alongside the undead (sometimes even controlling them). Excluding those created by the Foefire, ghosts often manifest themselves of their own, free or subconscious will rather than being bound by a necromancer. They are usually tied to the world of living due to some task left incomplete and will often depart when their souls are put at ease.
Although many Tyrians call the Risen minions of the Elder Dragon Zhaitan "undead" due to their rotten appearance, they are not undead in a standard, Tyrian sense as even the living, plants, and very environment can be twisted by the same dragon corruption that creates Risen without the need of dying first. Instead, they are simply beings that have been influenced by a death-based dragon corruption; though most Risen are made by corrupting corpses, such is not a requirement.
As such, the only undead seen in modern Central Tyria are the minions summoned by necromancers. Elona, however, has become a nation full of both the living and undead known as Awakened ever since Palawa Joko had conquered the land.
While it is common for necromancers of all paths of life to practice reanimation of the dead, there exist powerful undead necromancers known as liches. Liches not only exhibit a much greater capability of reanimating and maintaining entire armies of undead, but also extreme intelligence and an inability to be killed by conventional means. Notable examples of liches include Mazdak the Accursed, Palawa Joko, Vizier Khilbron, and Zoldark the Unholy.
- Mechanically, different kinds of undead use different species classifications, and as such there is currently no mechanical species for "undead."