A sequel to the film titled Grisaia: Phantom Trigger the Animation Stargazer premiered on November 27, 2020.

The Fruit of Grisaia is a romance visual novel in which the player assumes the role of Yūji Kazami.

Throughout the game, the player encounters CG artwork at certain points in the story, which take the place of the background art and character sprites.

Throughout gameplay, the player is given multiple options to choose from, and text progression pauses at these points until a choice is made.

The PSP version removes explicit sex scenes, but adds a new story, updated graphics, and additional voices.

It was ported to the PlayStation Vita on June 25, 2015, and features an original story on how Michiru becomes a magical girl tasked with the job of saving the world.

[11] Sekai Project acquired the rights to release an English version of the Grisaia trilogy as well as the spinoff game Idol Magical Girl Chiruchiru Michiru which they funded via Kickstarter in December 2014.

[14][15] A collection named The Grisaia Trilogy containing the three main entries and side stories was released for the Nintendo Switch in November 2019.

[citation needed] A manga adaptation titled The Fruit of Grisaia: Sanctuary Fellows (グリザイアの果実 サンクチュアリ フェローズ, Grisaia no Kajitsu: Sankuchuari Ferōzu), written by Eiji Narumi and illustrated by Shū Hirose, began serialization in Akita Shoten's Champion Red Ichigo magazine with volume 36 released on February 5, 2013.

[18] A second manga titled The Fruit of Grisaia: L'Oiseau bleu (グリザイアの果実 〜L'Oiseau bleu〜), written by Jun'ichi Fujisaku and illustrated by Taka Himeno, was serialized in Mag Garden's Monthly Comic Blade magazine between the May and September 2014 issues.

The screenplay was written by Hideyuki Kurata, character designs and chief animation direction are handled by Akio Watanabe, and Elements Garden composed the music.

The anime has been licensed for digital and home video release by Sentai Filmworks in North America.

A 90-minute anime film adaptation based on Frontwing's Grisaia: Phantom Trigger episodic game series premiered on March 15, 2019.

[31] Titled Grisaia: Phantom Trigger the Animation Stargazer, it adapts Volume 3 of the game, with the cast and staff reprising their roles from the first film.

[34] It is directed by Kousuke Murayama, with Akio Watanabe as the character designer and chief animation director, and Hitoshi Fujima, Yūsuke Takeda, and Fuminori Matsumoto as the music composers.