Screenshots
Watch trailer on Steam ↗Hyakki Yako: OH&S
Inhuman Resources · Published by Inhuman Resources
Positive — 89% positive (46 reviews)
Last updated 27 Sept 2026
Haramita Renkai is trapped somewhere deep in the underworld after a ritual gone awry. Armed with naught but his wits, his talismans and a burning desire for self-criticism, Renkai attempts to flee the grasp of the ravenous Demon Parade and escape back to the mortal plane.
Free to PlayDJCTQ 14
Free
Indie, Free To Play · 2023 · More free games
Navigate Haramita Renkai through treacherous underground corridors in Hyakki Yako: OH&S, an indie free-to-play adventure released in 2023. Use Renkai's skills and mystical items to outsmart the Demon Parade and reclaim your way back to the mortal world.
About this game
YOU WANDER FOREVER IN UNDEATH
Hyakki Yako: Operational Health and Safety is a first-person horror game. You play as Haramita Renkai, salary-man by day, exorcist by night. Renkai is trapped somewhere deep in the underworld after a ritual gone awry. Armed with naught but his wits, his talismans and a burning desire for self-criticism, Renkai attempts to flee the grasp of the ravenous Demon Parade and escape back to the mortal plane.
Wander a Labyrinthine Dreamscape
Collect Precious Few Talismans
Escape The Ever-Encroaching Demon Parade
Exorcism's one h̶̥̤̹̲e̤͞l̹͙̼̖̙̣͞ḷ̱̪͎̹̞ of a job.
Hyakki Yako: Operational Health and Safety is a first-person horror game. You play as Haramita Renkai, salary-man by day, exorcist by night. Renkai is trapped somewhere deep in the underworld after a ritual gone awry. Armed with naught but his wits, his talismans and a burning desire for self-criticism, Renkai attempts to flee the grasp of the ravenous Demon Parade and escape back to the mortal plane.
Wander a Labyrinthine Dreamscape
Collect Precious Few Talismans
Escape The Ever-Encroaching Demon Parade
Exorcism's one h̶̥̤̹̲e̤͞l̹͙̼̖̙̣͞ḷ̱̪͎̹̞ of a job.
System Requirements
Will my PC run this? →Minimum
Minimum:
- OS *: Windows 7 / 8 / 10 / 11
- Processor: Intel Core i5, 2.0GHz
- Memory: 2 GB RAM
- Graphics: Nvidia GeForce GTX 680 / AMD Radeon PRO W5300M
- DirectX: Version 11
- Storage: 700 MB available space
Recommended
Recommended:
- OS: Windows 10 / 11
- Processor: Intel Core i5, 2.0GHz
- Memory: 4 GB RAM
- Graphics: Nvidia GeForce GTX 1080 / AMD Radeon PRO W5700
- DirectX: Version 11
- Storage: 700 MB available space
Supported Languages
English*
*languages with full audio support
*languages with full audio support
Latest news
Patch NotesOfficial
Hyakki Yako OH&S Update
Following the release of the Mac version of Hyakki Yako: OH&S, we have heard back a number of issues regarding this version. It has remained unplayable for most players since launch. As of today, the Mac version will be made unavailable until after the release of Hyakki Yako II, when we will then dedicate the time and resources to make a Mac version of both games available again. Apologies for any inconvenience this may cause.Read full article on Community Announcements (Inhuman Resources)
