Zombie King Alteon is a monster in AdventureQuest Worlds.
In the alternate timeline created by Drakath, King Alteon was seen dueling Sepulchure when the players arrive to warn both sides about Drakath. When Drakath doesn't show up, Sepulchure tries to attack them only for King Alteon to take the hit and die. When Death arrives to claim King Alteon's soul and states that he will come after Sepulchure's soul as well, Sepulchure ends up vanquishing Death which causes those who have recently died to return as Zombies that obey Sepulchure's every command. King Alteon returns as Zombie King Alteon as he, Noxus, Dage the Evil, and Nulgath bow before Sepulchure. The players end up fighting Zombie King Alteon when Sepulchure invades Battleon. The players managed to defeat Zombie King Alteon.
- Location: Doom War
- Level: 20
- HP: 6,893
- MP: 100