Attack on Titan is not an anime.
Attack on Titan . Four video game adaptations developed by Nitroplus staffers in collaboration with Production I.G were announced to be released as bonus content for the third and sixth volumes of the Blu-ray Disc release of the anime , with another game developed by Spike Chunsoft for the Nintendo 3DS . The release of the anime also saw a boost in the series ' popularity , with it having received widespread critical acclaim for its atmosphere and story .