Noroi Ayashi: The ∞th Oddity Announced for 2027, a Death-Loop School Horror Game from Rensuke Oshikiri and Sohei Niikawa

Noroi Ayashi: The ∞th Oddity has been officially revealed as a new horror game built around learning through repeated death. Game Source Entertainment opened its Steam page and released an announcement trailer on September 16, 2026, introducing a dark school haunted by Seven Mysteries and an urban legend surrounding a cursed doll named Aya.

The project brings together Rensuke Oshikiri, the manga creator known for Hi Score Girl, Sayuri and numerous horror works, with Sohei Niikawa, who also writes under the name Roman Kitayama and previously worked on titles including Disgaea and Hayarigami. Steam currently lists Superniche LLC and Clover Lab.,inc. as developers, with Game Source Entertainment publishing the game.

Quick Summary

• Official English title: Noroi Ayashi: The ∞th Oddity
• Japanese title: ノロイあやし
• Format: video game
• Official publisher genre: Time-loop Horror RTA Stealth Action Adventure
• Steam genre: Action / Adventure
• Themes: school horror, urban legends, supernatural mystery, time loops
• Publisher: Game Source Entertainment
• Steam developers: Superniche LLC / Clover Lab.,inc.
• Developer in the Japanese press-release product table: Clover Lab.,inc.
• Copyright: © SuperNiche LLC.
• Creative team: Rensuke Oshikiri
• Creative team: Sohei Niikawa / Roman Kitayama
• Public announcement date used: September 16, 2026
• Date note: the press-release body says July 17, 2026 and Denfaminicogamer says July 16, creating an internal source inconsistency
• Release window: 2027
• Specific release date: unannounced
• Price: unannounced
• Age rating: unannounced
• Platform: PC / Steam
• Platform: Nintendo Switch
• Platform: Nintendo Switch 2
• Players: 1
• Protagonist: Seira
• Seira's group: U High School Journalism Club
• Friend: Hime
• Friend: Tae
• Related character: Yuriko
• Primary location: U High School
• Main exploration period: midnight
• School phenomena: Seven Mysteries
• Urban legend: Cursed Doll Aya
• Aya rumor: a ritual can summon Aya to curse someone to death
• Story catalyst: the mysterious death of a friend
• Seira's objective: uncover the truth behind the urban legend
• Core system: exploration
• Core system: stealth
• Core system: puzzle / mystery solving
• Core system: time loop
• Each mystery: has its own avoidance method
• Each mystery: has its own sealing procedure
• First-run survival: described by the developer as virtually impossible
• Death: used to acquire information
• Iteration goal: remove unnecessary actions
• Ultimate objective: build the fastest route to break the cycle of death
• Shown perspective: top-down / isometric-style exploration
• Steam wishlist: available
• Steam demo: unannounced
• Voice cast: unannounced
• Physical edition: unannounced
• Steam mature content: frequent violence or gore and general mature content
• Minimum OS: Windows 10 64-bit
• Minimum CPU: Intel Core i3-8100
• Minimum RAM: 8 GB
• Minimum GPU: NVIDIA GeForce GTX 760
• DirectX: Version 11
• Minimum storage: 2 GB

Trailer, Steam and the World of Noroi Ayashi

The Seven Mysteries and Cursed Doll Aya Drive the Horror

The story takes place at U High School, an institution already surrounded by its own Seven Mysteries.

Beyond those stories, students whisper about an even more dangerous urban legend: performing a particular ritual will cause Cursed Doll Aya to appear and kill the person targeted by the curse.

A student named Yuriko attempts to determine whether that legend is real. Material on Steam explains that she tried several different rituals on herself before seeing Aya in a dream.

Yuriko even leaves behind a request asking someone to solve the mystery if she really does suffer a strange death.

After her diary reaches her bereaved family and eventually the Journalism Club, Seira, Hime and Tae decide to investigate. Their search takes them into U High School at midnight, where a forbidden ritual draws the group into a nightmare that refuses to end.

Death Is Information Rather Than a Simple Game Over

The most distinctive part of Noroi Ayashi is the way it treats death.

The publisher openly describes surviving a first encounter as virtually impossible. Players are expected to fail, die and carry what they have learned into the next attempt.

A death may reveal a threat, timing requirement, dead end, clue location or procedure that was impossible to understand beforehand.

The next iteration can then remove wasted movement and optimize the route through the school.

This is what gives the official “RTA” genre label practical meaning. Progress involves constructing increasingly efficient runs based on knowledge accumulated across previous loops until the player can finally move through the school without repeating the same fatal mistakes.

Every Seven Mystery Has Its Own Survival Rules

The supernatural phenomena inside U High School are not presented as threats that can all be handled with a single mechanic.

Game Source Entertainment states that every Seven Mystery has its own avoidance method and sealing procedure.

Exploration therefore involves more than simply finding an exit.

Players must determine the rules governing each anomaly: when to avoid it, what triggers danger, which clues are required and how the phenomenon can ultimately be sealed.

That structure makes observation and puzzle solving potentially just as important as stealth.

The trailer also presents the school from an elevated perspective, showing dark corridors, classrooms, interactive objects and situations where Seira's position relative to something pursuing her appears critical.

Seira Enters With Friends but Eventually Finds Herself Alone

Steam directly introduces three members of the Journalism Club.

Seira is the heroine. She investigates the mysterious death of a close friend alongside other club members, but eventually becomes separated from them and finds herself alone inside the school building at night.

Hime is described as headstrong and wayward, someone who follows her own instincts. Rumors at school also claim that she is involved in compensated dating, although the complete context behind those rumors has not yet been explained.

Tae is the Journalism Club president with an insatiable thirst for knowledge. She appears to be a model student who constantly smiles, but the official profile deliberately leaves the deeper side of her personality unfinished.

Yuriko, meanwhile, remains important through the diary that motivates the investigation into Aya. Her complete relationship with the group and the exact circumstances of her fate remain part of the mystery.

Rensuke Oshikiri and Sohei Niikawa Join the Development Team

Steam places Rensuke Oshikiri and Sohei Niikawa / Roman Kitayama within its Development Team section.

Game Ad

CONTROL Resonant

Oshikiri is widely recognized for Hi Score Girl, but much of his catalogue is closely connected to horror. Works such as Misumisou, Sayuri and other supernatural or psychological horror manga make his involvement particularly relevant to this project.

Niikawa previously worked at Nippon Ichi Software and contributed to titles including Rhapsody: A Musical Adventure, Disgaea and Hayarigami: Keishicho Kaii Jiken File. He went independent in 2022 and also writes under the name Roman Kitayama, including Etrange Overlord.

Steam currently lists Superniche LLC and Clover Lab.,inc. as developers.

The Japanese press release presents the credits slightly differently: its product table names Clover Lab as the developer while the copyright belongs to SuperNiche LLC. Both are therefore recorded according to their respective official sources rather than assigning unannounced internal roles.

Coming in 2027 for Steam, Switch and Switch 2

Noroi Ayashi is scheduled for 2027 on PC via Steam, Nintendo Switch and Nintendo Switch 2.

No launch month or date has been announced.

Pricing, preorders, physical editions, purchase bonuses, an age rating and any potential demo also remain unannounced.

The Steam page is already open for wishlisting and lists Single-player, Steam Achievements, Steam Cloud, Stats and Family Sharing.

Language information currently contains one unresolved difference. The publisher's press release lists Japanese, English, Simplified Chinese and Traditional Chinese as planned display languages, while the Steam listing visible during verification currently shows only English and Japanese for interface and subtitles.

Because the store page can still change before the 2027 launch, both sets of information are recorded without treating the current Steam list as final.

Why This Matters

1) Death is deliberately turned into an information system

Failure does not simply reset progress; every death can teach the player how the school works and improve the next route.

2) The Seven Mysteries do not share one universal solution

Each phenomenon has its own avoidance and sealing rules, forcing players to learn every threat independently.

3) The creative team has deep connections to Japanese horror and games

Rensuke Oshikiri brings a long history of horror manga, while Sohei Niikawa has experience with projects including Hayarigami and Japanese RPG development.

4) RTA concepts are being used as part of horror design

The goal is not only to solve mysteries, but to become progressively more efficient after learning what caused previous deaths.

Game Information

For now, the additional important information currently known includes:

• the Japanese title is ノロイあやし
• the English Steam title is Noroi Ayashi: The ∞th Oddity
• Game Source Entertainment is the publisher
• Steam lists Superniche LLC and Clover Lab.,inc. as developers
• the Japanese press-release product table lists Clover Lab.,inc. as developer
• copyright is listed as © SuperNiche LLC.
• Rensuke Oshikiri appears in the Development Team section
• Sohei Niikawa / Roman Kitayama also appears in the Development Team section
• the game is scheduled for release in 2027
• no specific date has been announced
• pricing remains unannounced
• an age rating remains unannounced
• the game supports one player
• PC / Steam is confirmed
• Nintendo Switch is confirmed
• Nintendo Switch 2 is confirmed
• Steam wishlisting is available
• no Steam demo has been announced
• no physical edition has been announced
• preorders have not been announced
• voice actors have not been announced
• Seira is the protagonist
• Seira belongs to the U High School Journalism Club
• Hime is another Journalism Club member
• Tae is the Journalism Club president
• Yuriko leaves behind a diary connected with the Aya urban legend
• U High School contains Seven Mysteries
• another legend says a ritual can summon Cursed Doll Aya
• Aya is said to curse a selected target to death
• Seira and her friends enter the school at midnight
• they perform a forbidden ritual while investigating the legend
• that event pulls them into a cycle of death
• every Seven Mystery has a different avoidance method
• every Seven Mystery has a different sealing procedure
• clue hunting is central to exploration
• stealth is part of the official genre description
• puzzle and mystery solving are major elements
• the developers describe first-run survival as virtually impossible
• repeated deaths become sources of knowledge
• players are encouraged to remove unnecessary actions
• that knowledge is used to find the shortest route
• the ultimate goal is breaking the endless cycle of death
• Steam warns of frequent violence or gore
• Steam also mentions general mature content
• the mature-content description is not an official age rating
• minimum OS is Windows 10 64-bit Version 21H1 or later
• minimum processor is Intel Core i3-8100
• minimum memory is 8 GB RAM
• minimum graphics is NVIDIA GeForce GTX 760
• minimum DirectX version is 11
• minimum storage is 2 GB
• Steam Achievements are supported
• Steam Cloud is supported
• Steam Stats are supported
• Family Sharing is supported
• the publisher press release lists Japanese, English, Simplified Chinese and Traditional Chinese as display languages
• the verified Steam listing currently displays only English and Japanese
• an exact official X announcement status could not be verified, so no X embed is used
• the official announcement is available through the Game Source Entertainment Press Release
• general publisher updates are available through Game Source Entertainment Official X
• the video is available through the Noroi Ayashi Official Announcement Trailer
• the PC version can be wishlisted through Noroi Ayashi on Steam

Closing

Noroi Ayashi: The ∞th Oddity builds horror around something players normally want to avoid: death itself. Every failed run becomes a chance to understand the Seven Mysteries, memorize risks, remove wasted movement and gradually construct a route capable of breaking the night's cycle inside U High School.

The game remains some distance from launch, with a 2027 release planned for Steam, Nintendo Switch and Nintendo Switch 2. Its specific date, price, rating, voice cast and other distribution details remain unannounced.