The Caligula Effect[b] is a role-playing video game developed by Aquria. It was released for the PlayStation Vita in Japan in June 2016, and by Atlus USA in North America and Europe in May 2017. A remake of the game, The Caligula Effect: Overdose, was released for the PlayStation 4 in Japan in May 2018, and will be released worldwide by NIS America in March 2019 for the PlayStation 4, Nintendo Switch, and Microsoft Windows. An anime adaptation of the same name premiered in April 2018.