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Blue moongate created by a moonstone

Moonstones are extraterrestrial stone artifacts connected to the workings of Moongates. They appear in Ultima V and Ultima VI, as well as in the Underworld Series and the Savage Empire. The Orbs of the Moons share some characteristics with moonstones, and are actually referred to as "moonstones" at times.[1]


The eight moongates of Britannia are tied to eight moonstones, which lie beneath the locations where the portals appear at regular intervals of the world's lunar cycle. Each moonstone is marked with an image depicting one of the eight phases of the moons. Should the moonstones ever be uprooted from the soil (as they were by Lord Draxinusom's troops during the Gargoyle War) the gates associated with them will appear at the location where they are re-buried.

Moonstones also appear to have mystical properties outside of their connection to the moongates. During the last days of the Age of Enlightenment, they were required, in conjunction with the Vortex Cube, as a vital part of the ritual the Avatar performed to send the Codex of Ultimate Wisdom into the Void. In runic magic, small moonstones (not related to the major eight) are employed by magicians as a means of teleportation via the Gate Travel spell.

Giant Moonstone of Eodon[edit]

Destroying the corrupted Moonstone

In the early history of the realm of Earth, a meteorite composed of the same material as the Britannian moonstones struck the planet. This great black stone was eventually harnessed by the great Kotl civilization, who used its energies to power the technology of their empire and to craft a servitor race known as the Myrmidex.

In time, however, the ant-like Myrmidex revolted against their masters, altering the giant moonstone such that it allowed them to destroy the Kotl. This act caused the artifact to place the valley that they inhabited in a temporally different state than the rest of the Earth, cutting the Myrmidex and the scattered human slave stocks of the Kotl off from the rest of civilization. Centuries later, the Avatar would destroy this giant moonstone on behalf of the united tribes of Eodon, and in doing so would precipitate the fall of the Myrmidex race.[2]


  • In the original release of Lord of Ultima, players could create moonstones with a high level mage's tower, and collecting these moonstones would later determined the level and capabilities of the player. In the "Ascension" expansion for the game, however, moonstones were functionally replaced with purified resources.


  1. Allston, Aaron et al. "Valley of the Thunder Lizards, Chapter One". Ultimate Adventures Magazine (Worlds of Ultima: The Savage Empire). Origin Systems, Inc.: 1990. Pages 8-10.
  2. WispSavage Empire TranscriptWorlds of Ultima: The Savage Empire. "anomaly, distress, Eodon, here, modification, moonstone, power, stone, valley".
  3. DeMaria, Rusel et al. "A Conversation With Richard Garriott". Ultima: The Avatar Adventures. Prima Publishing: 1992. Page 387.