Located in Irvine, California , Atlus U.S.A., Inc. is a publisher of  video games for a variety of platforms, including the Sony PlayStation®2, Nintendo DS™ and Game Boy® Advance, and Microsoft Xbox®. Founded in 1991, Atlus U.S.A., Inc. is best known for its library of classic role-playing games, including Ogre Battle, Disgaea: Hour of Darkness, Magna Carta: Tears of Blood, and the Shin Megami Tensei series.