Ar tonelico Qoga: Knell of Ar Ciel (アルトネリコ3 世界終焉の引鉄は少女の詩が弾く, Aru toneriko Sekai Shūen no Hikigane wa Shōjo no Uta ga Hiku, lit. "Ar tonelico III: The Girl's Song that Pulls the Trigger of World's Demise") is a console role-playing game produced by Gust and published by Namco Bandai in Japan and by NIS America in North America for the Sony PlayStation 3. It is the third installment, taking place in the Reyvateil-ruled country of Clusternia, located in an area known as Sol Cluster, and set around two and half years after the events of Ar tonelico 2. Clusternia is situated on the third tower in the world of Ar Ciel, which floats above the uninhabitable Sea of Death. It is the third game and the first 3D game in the series. The Japanese version became available for retail on January 28, 2010 and will release in North America on Q1 2011
Source: Wikipedia, "Ar tonelico Qoga: Knell of Ar Ciel", available under the CC-BY-SA License.