Manga
Written and illustrated by Yasuki Tanaka, Summer Time Rendering, was serialized in Shueisha's digital magazine Shōnen Jump+ from October 23, 2017,[12] to February 1, 2021.[13] The series was also simultaneously published on the app and website Manga Plus.[14] Shueisha collected its chapters in 13 individual volumes, released from February 2, 2018, to April 2, 2021.
In North America, the manga was licensed for English release by Udon Entertainment.[15] They released the series in a six-volume paperback omnibus edition from June 1 to September 6, 2022. They also announced a simultaneous hardcover edition which was delayed,[16] and ultimately released on December 20, 2022.[17][18]
A two-part spin-off, titled Summer Time Rendering 2026: The Room that Dreams of Murder (サマータイムレンダ2026 未然事故物件), was published on Shōnen Jump+ on April 14–15, 2022.[19] It was published in English on Manga Plus.[20] Shueisha released the collected volume on July 4, 2022.[21]
Real escape game
A real escape game was announced at the end of the series' 139th and final chapter in February 2021. The game, produced by Scrap (company), took place on the island of Tomogashima, which inspired the setting of Summer Time Rendering, for one day only on July 22, 2021.[40][41]
Anime
An anime adaptation was announced at the end of the series' 139th and final chapter in February 2021.[42] It was later confirmed to be a 25-episode television series.[43] The series was produced by OLM and directed by Ayumu Watanabe, with Hiroshi Seko overseeing the series' scripts, Miki Matsumoto designing the characters, and Kusanagi handling the art. Keiichi Okabe, Ryuichi Takada, and Keigo Hoashi composed the music at MONACA.[44][45] It aired from April 15 to September 30, 2022, on Tokyo MX, BS11, and Kansai TV.[46][47]
Light novel
Summer Time Rendering 2026: Nagumo Ryūnosuke's 100 Views (サマータイムレンダ2026 小説家・南雲竜之介の異聞百景), a light novel by Hotori Handa and a continuation of The Room that Dreams of Murder manga, was released on October 4, 2022, under Shueisha's Jump J-Books imprint.[58]
Video game
A visual novel, titled Summer Time Rendering: Another Horizon (サマータイムレンダAnother Horizon) was announced by Mages in July 2022.[59] The game retells the events of the anime, and also follows six original stories, with an original ending. In addition to the characters in the series, the game also features an original character designed by the series' author Yasuki Tanaka, named Kaori Koyuba (voiced by Yui Ogura).[60] The cast members from the anime reprised their roles in the game. It was released for PlayStation 4 and Nintendo Switch in Japan on January 26, 2023. The limited edition of the game includes an official guidebook and an original soundtrack CD.[60]
Live-action
A live-action adaptation was announced at the end of the series' 139th and final chapter in February 2021.[42]