Ar tonelico (アルトネリコ, arutoneriko) is a multimedia project series made in collaboration by Gust Corporation and Banpresto (currently subsidiaries of Tecmo Koei and Namco Bandai Games respectively) consisting of video games, manga, and an OVA. The name of the series is also the name of the amplification complex composed by three monumental towers that appear in the aforementioned works.