In the first year of Reiwa, Keitarou Maebara moves from Tokyo to Hinamizawa. He is excited about his new life in Hinamizawa as he gets to know the children of the former club members. Then one day, he meets a mysterious girl named Inori, and another girl who calls herself Kururu contacts Keitarou... Oyashiro-sama's curse transcends time and generations, and will happen again in the world of Reiwa...? (Source: Big Gangan, translated)

Umineko no Naku Koro ni Shi: Forgery of the Purple Logic is a manga-exclusive series by Kurumi Suzuhiro. The story expands on the use of the purple declaration introduced by Bernkastel in Twilight of the Golden Witch. The red truth still applies in this game even though there are lesser than usual games. Knox's rules are stated in red to show that it is valid in this game. The story takes place outside the main story.

Marie is trapped in a horrible situation. She's being constantly tormented by her classmates and regularly molested by her teacher. With nowhere else to turn, she finds herself asking for supernatural help from one of the seven demons of the seven mysteries of her school. All she desires is the death of her cruel classmates and teacher. How far will Marie be willing to go in order to achieve the murders that would free her from her living hell?

After moving into the quiet town of Hinamizawa, Maebara Keiichi spends his days blissfully in school often playing games with his local friends. However, appearances can be deceiving. One fateful day, Keiichi stumbles upon news of a murder that had occurred in Hinamizawa. From this point on, horrific events unfold in front of Keiichi, as he soon learns his close friends may not be all that they seem. Based on the amateur mystery game by 7th Expansion, the story is told in a series of different scenarios. Utsutsukowashi is a manga-only scenario featuring mostly different characters from those in the scenarios from the games with a few exceptions. It focuses on Kousaka Mizuho, Sonozaki Shion and the murders happening at their school. *Note: Includes 2 extra chapters that both include characters from Higurashi no Naku Koro ni: Onisarashi-hen, in particular the second one is an epilogue for Onisarashi-hen, dissimilar to the epilogue present in that entry.*

A 4-koma spin-off comic of Umineko no Naku Koro ni following the witches, where Lambdadelta decides to move in with Beatrice and Battler.

Summer 1983...Hinamizawa is a tranquil village, but its inhabitants have been plagued by strange deaths and unexplained disappearances seemingly every year. Some say it's the terrifying curse of Hinamizawa's legendary deity, Oyashiro-sama, causing victims to be spirited away by monsters, but is this town harboring dark, horrying secrets even more sinister than any supersition or myth? An epilogue to Matsuribayashi-hen where Rika and the others, including Hanyū, go on a summer vacation to heal their hearts, so to speak, after everything they have been through.

As the era changes from Showa, to Heisei, and now Reiwa, the curtain rises once again on a tragedy for the steadily declining population of Hinamizawa. This year, again, one will die and one will go missing on the night of the Watanagashi festival... (Source: Gangan Online, translated)

In the recesses of mountain... there's a bus stop at outskirts of a village, it's called "Hinamizawa bus stop". Rika, a female high-school student, together with her junior, Mion visit this place. Twisted relationships that are concerned with the dam construction in Hinamizawa, and the stories of the curse of "Oyashiro-sama" that takes root in this area. What waiting for them is a tragedy, or else...? This manga adapts Hinamizawa Teiryūjo, the unreleased stage play that Ryukishi07 wrote and eventually tranformed into the Higurashi no Naku Koro ni game/anime/live-action franchise.

Saikoroshi-hen is an epilogue of Matsuribayashi-hen which takes place two months later, in August 1983. Rika is run over by a truck and wakes up in a totally different world, where none of the tragic events of the main series ever happened: Keiichi is not in Hinamizawa, Rena's parents did not divorce, the dam project was resolved smoothly, Satoshi did not run away, and neither Satoko nor Rika's parents died. However the club never formed, meaning Rika has no friends, she gets bullied by Satoko, Hanyū is absent, Rika is not revered as the reincarnation of Oyashiro and the village will soon be submerged underwater. Rika has to choose between staying in that world or killing her own mother, which will enable her to leave that sinless world.

Taisho year 12 (1923). A tragedy occurring in Hinamizawa changes the fate of a lone girl and her friends. The turbulent early life of Oryou, head of the Sonozaki family, one of the Three Great Families, who would later be feared and known as Empress Sonozaki. A missing link connected to the original Higurashi story revealed now.

This chapter of the Higurashi no Naku Koro ni series, called the "Mahjong" chapter, is related to a "dramatic mahjong" game being released for the PSP in November 2009. This time, Keiichi (a boy who moved to the small village of Hinamizawa), finds himself drawn into a special mahjong course at his school. *Notes: Includes the prologue.*

A cross over series featuring the cast from the Higurashi no Naku Koro ni series.