Nexon has released a new game client for the North American version of Atlantica Online. Developed by Ndoors, Atlantica Online is a strategic turn-based massively multiplayer online (MMO) game, offering players the chance to strategically plan every move of the nine characters in their group. Players take on the physically and mentally demanding quest to destroy the Oriharukon, a powerful energy source from the lost civilization of Atlantis. This dangerous element survived the demise of the "Lost City," and its rampant spread is quickly endangering humanity. The epic journey takes players to some of the most historic and exotic locations around the globe, where they will come face-to-face with vicious monsters ripped from history and lore.