Also known as: グリムノーツ, グリムノーツRepage, グリムノーツ学園, 格林笔记
A mobile gacha RPG developed by Genki and published by Square Enix, released on January 21, 2016 and discontinued on June 17, 2020. An offline version was released, which retains the cutscenes but removes the gameplay system entirely.
An anime adaptation premiered from January 10 to March 28, 2019 (called Grimms Notes The Animation), which only covered less than the first quarter of the game's main story.