Fantasy Earth: Zero is a 2006 massively multiplayer online role-playing game designed for Windows. It immerses players in a vibrant fantasy world where they can engage in large-scale battles, form alliances, and participate in player-driven economies. The game features a unique blend of real-time strategy and role-playing elements, allowing players to customize their characters and hone their skills in various classes.

The gameplay is centered around large-scale territorial wars, where players can join factions to compete for control over regions. With dynamic environments and a rich storyline, Fantasy Earth: Zero offers an engaging experience for fans of the genre. The original title, Fantasy Earth: The Ring of Dominion, was released by Square Enix through its PlayOnline service, emphasizing its competitive and cooperative elements.