 There have been four video game adaptations of Attack on Titan developed by Nitroplus staffers in collaboration with Production I.G. Nitroplus clarified that the studio as a company is not involved in the Attack on Titan Blu @-@ ray Disc games , while individual staffers are . The games are visual novels and were included in the first copies of the third and sixth Blu @-@ ray Disc volumes of the anime . The games cover spin @-@ off stories about the characters of Attack on Titan . Isayama supervised the development of the games . 
