Corpse Party

Corpse Party: NewChapter remake was released for mobile phones in four chapters from October 3, 2006 to December 26, 2007. It was discontinued before Chapter 5 was released. It contained the same plot additions as the later Blood Covered, but had much smaller maps.

Blood Covered, released for PC in five chapters (first two released together) from March 8, 2008 to July 28, 2011, is an enhanced remake and port of the 1996 Corpse Party. It includes more characters, larger maps, updated graphics, and a cast of amateur voice actors. It was followed on August 12, 2010 by another enhanced remake, Blood Covered: Repeated Fear, which was released internationally as Corpse Party, which features updated art and the addition of professional voice actors.

The remake thoroughly expands the plot and setting of the original game. Here, the haunted schoolhouse is named Heavenly Host Elementary School (天神小学校, Tenjin Shōgakkō), a fictional Fujisawa elementary school that was torn down following the murders and disappearances of several of its staff and students. In modern-day Japan, the main characters' high school, Kisaragi Academy (如月学園, Kisaragi Gakuen), has been built over the elementary school site. The students are transported to Heavenly Host after performing a charm called Sachiko Ever After (幸せのサチコさん, Shiawase no Sachiko-san), which would supposedly allow them to remain friends for eternity.

In addition to the five protagonists of the original game, Blood Covered introduces four characters to the playable cast: Seiko Shinohara, Naomi's best friend; Mayu Suzumoto, a popular student due to transfer out of Kisaragi; Sakutaro Morishige, Mayu's best friend; and Yui Shishido, the class's homeroom teacher. Blood Covered also includes several characters from other schools who are also trapped inside Heavenly Host and affect the story. Two notable characters are Naho Saenoki, a selfish but helpful paranormalist from Paulownia Academy (桐章学園, Kirishō Gakuen) who discovered the Sachiko Ever After charm and came to investigate Heavenly Host; and Yuuya Kizami, a sadistic student from Byakudan Senior High School (白壇高等学校, Byakudan Kōtōgakkō) who accompanies Yuka as she is separated from her brother. The red ghost is re-envisioned as a little girl named Sachiko Shinozaki who kills the students of Heavenly Host in anger over her and her mother's murder.

Corpse Party: Another Child is a spin-off manga that takes place during the events of Corpse Party. With their school, Satsukiyama Academy (皐月山学園, Satsukiyama Gakuen), shutting down for good, the students of a small town were heading for different directions in life, not until they decide to perform the "Sachiko Ever After" charm swallowing the entire class to Heavenly Host Elementary, along with a mysterious girl's spirit. In order to get out, they must track and get rid of the spirit.

A sequel to Blood Covered, Book of Shadows features a series of nonlinear chapters that add new twists and backgrounds for various characters and details important to the storyline. The game mostly takes place during the same time the first game did, continuing from one of the "wrong ends" in Corpse Party, where Sachiko sends the Kisaragi Academy students back in time. For this purpose, she erases their memories except for Satoshi's. He fails to dissuade his classmates from performing the charm, but he joins them, not wanting to let them go alone, sending them on alternative course of actions and encountering several supporting victims in Heavenly Host.

The game's epilogue, Blood Drive, serves as the set up to the eponymous sequel. Two weeks after escaping Heavenly Host, Ayumi and Naomi go to investigate the Shinozaki estate, Sachiko's birthplace, believing there is hope in reviving their dead friends since Naho and Kou Kibiki's existences were not erased like the other victims. At the estate, Ayumi discovers that she is of the same lineage as Sachiko. Hearing an eerie voice, Ayumi uncovers a magical tome known as the Book of Shadows. Ayumi and Naomi perform a resurrection spell for Mayu, but fail. As compensation for using black magic, the book unleashes its rage upon Ayumi until her older sister Hinoe Shinozaki rushes in and saves Ayumi, at the cost of her own life.

On the day of Sachiko's birth and death, the curse on her weakens and she gets 24 hours to celebrate her birthday as someone closer to the girl she was before her death. She uses the time loops as established in Corpse Party: Book of Shadows to force all survivors at that point to participate in activities she has set up. Given it is either that or die horribly again, something all are aware that they have already experienced but cannot remember in full, they go along with her demands. The game features almost all characters from the previous games and some new ones. While a pseudo-horror spin-off at best, it is part of the storyline, setting up a few details to prepare for Corpse Party: Blood Drive.

As with Corpse Party: Book of Shadows, there is only one extra chapter. This extra chapter takes place during the previous game and is more conventional horror. It tells of Yoshiki's and Ayumi's encounter with four students from Sugatani Senior High School, notably Azusa Takai.

Corpse Party: Blood Drive is the direct sequel to Corpse Party: Book of Shadows, and is the first game featuring settings and characters rendered in 3D. The game was released for the Sony PlayStation Vita in Japan in July 2014 by 5pb. The characters are depicted in 3D chibi style, however traditional CG artwork appears during cutscenes, illustrated by Sakuya Kamishiro.[14]

Continuing from the prologue included in Book of Shadows, Naomi manages to save Ayumi and takes her to a hospital. The Shinozaki estate and tome subsequently vanish without a trace. Ayumi had been severely ill for her misuse of the Book of Shadows' black magic. In the hospital, a woman claiming to be a spiritual associate of Hinoe's visits Ayumi. This woman belongs to the Wiccan Institute, an organization that worships spirits. She tells her Hinoe's last wish, which is to regain the Book of Shadows or the world will fall into the abyss. This is partially a lie, as the woman is under threat of other organizations to get Ayumi to find the book, which they wish to use for their own gain.

After being discharged from the hospital two months later, Ayumi returns to Kisaragi Academy where Satoshi and friends give her a warm welcome. However, the absence of their dead friends is a constant reminder of their inevitable reality. A new teacher's assistant, Kuon Niwa, supervises their homeroom. Later, on her way home, a black hooded boy approaches Ayumi and tells her, "If you reclaim the Book of Shadows and use it at Heavenly Host, those who have died there will be revived." Ayumi pledges that she will once more take back the Book of Shadows. The trail leads into the previous residence of Makina Shinozaki. To make matters worse, Heavenly Host's curse is expanded by the "new Sachiko", later named Sachi.[14]

The game Corpse Party 2: Dead Patient takes place five years after the events of Corpse Party Heavenly Host Arc, implied to be the consequences of the Book of Shadows' powers starting to bring about the end of the world by allowing the spirit realm and real world to start to converge together. The setting takes place at Amare Patriarcha Crucis Hospital (文月大付属・慈愛十字(パトリアーカル)病院, Fumizuki Daifuzoku Patoriākaru Byōin, "July University Patriarchal Hospital") fallen into a dark abyss. Patient records and clinical charts are scattered all over the hospital, with zombies and a bizarre SWAT team roaming through the hallways. An amnesiac girl, Ayame Itou, wakes up on an operating table and encounters the dark happenings around her.

On August 11, 2020, MAGES YouTube channel released a "10 Years of Corpse Party Repeated Fear" video celebrating the Heavenly Host Saga, at the end of the Timeline they show off "202X" with then the words "Darkness Distortion" followed by the last words of "More Corpse...", which seems to tease a direct sequel to Corpse Party: Blood Drive, which was called "The End of the Heavenly Host Saga".