Top similar games like Hyakki Yako: OH&S:

You've been invited to participate in a study for the newly developed Circadial pills, a medicine designed to remedy your life-long insomnia. Explore the empty halls of the facility and the landscapes of your dreams to uncover the source of your night terrors. You will never be the same.

The Hobo Complex is a first-person psychological horror game delving into drug addiction, homelessness and the reasons that might have caused it. Traverse varied, eerie settings while uncovering the truth behind where your girlfriend went after leaving you.

Lunacy: Saint Rhodes is a first-person psychological horror adventure game. Explore your dark family history, solve puzzles and experience a gut-wrenching feeling of terror. You are being watched; never alone, never safe.

Clock in and discover the dark secret behind one of the world’s favorite canned meat brand in Beef, a surreal horror experience like no other.

A home brewed 360° interactive horror flick. Witness a troubled soul craving to make a chilling home movie realize that the monster lies a lot deeper than he could have ever guessed. Play the cassette and rewind the terror hidden inside.

This is a retro horror game about the war in Ukraine and brutalist architecture in Eastern Europe

In a broken world ruled by demons, the gears of productivity still turn. Complete tasks, solve puzzles, and explore a society under demonic regime from the perspective of an ordinary office clerk.

Dweller is a psychological walking sim horror game where you're trapped in a rotting sewer system with something watching your every move. You're low on resources, high on tension, and the only voice you hear might be trying to help... or mess with your head. Trust no one. Stay quiet. Stay alive.

A phychological horror experience of voices and screams.

Sorrow Asylum 2 is a looping horror game, a mix of an abandoned asylum and your mind's prison, as well as a sequel to Sorrow Asylum.

A psychological horror adventure where you investigate a large art gallery following many disappearances. You'll go on a journey filled with fear and stress to find out what happened to all those who went missing.

Ominous Obscurity is a single-player horror adventure game set in places from the protagonist's childhood. Solve interesting puzzles, while hiding from insidious horrors waiting for you in the shadows.

After a tragic event, moving to a new city leads you to work in a dark warehouse. Unravel the mysteries surrounding the protagonist's past and survive through 5 shifts, avoiding ruthless enemies, where a convoluted story unfolds in the style of retro-stylized graphics.

You are a night worker who has to clean up after a long day of trading at the local mall. But as the night quickly progresses you start to realize that something isn't quite right.

An obscure collection of 8 surreal and dark horror games.

A nonlinear psychological horror game in which you attempt to free yourself from the constantly repeating daily cycle of life. Explore a total of 7 different endings. Will you be brave enough to take the leap, even if there seems to be No Way Out?

Water Delivery is a first person, horror experience where you play as a water delivery boy. Ride along in the delivery truck from house to house. Deliver filled water jugs, find and return empty jugs, and collect all the payments. Will you be able to finish your final route of the evening?

Spiritus Sancti is a first-person psychological horror where your voice is your weapon. Speak sacred rites through your microphone to repel, stun, and exorcise the forces of darkness. Every encounter is real-time, every word a test of faith. An experience like no other.

A surrealist exploration of the mind of a man trapped in a room. Part game, part short film, part disaster, Flat 207 is a cursed video game with no traditional game mechanics that takes roughly 40 minutes to finish.

A game about hunting rats, feeding them to your family, and going to bed.

Knock-Knock Housekeeping is a psychological horror game where you take role of a maid in a hellish hotel filled with uninvited guests. 

Callus is a short psychological horror (~30 minutes) in the walking simulator genre, featuring jump scares and themes of cruelty and overprotection. It was released as a transitional project between larger releases, with an intentionally simple story and concise gameplay.

It's 3am in your childhood home. Everyone's asleep, but you. Sneak out of your room to do what you always do - "T.W.I.R.L." - whatever that means.

TRAFFIC is an Atmospheric First-Person Psychological Horror game about a troubled child in a home where he must deal with both internal and external stresses. You will communicate with your parents, do your chores, and stay out of the way.

A rustpunk sci-fi horror game with a touch of dark corporate humor. Operate a free-hanging elevator and explore the depths of a horrific alien world made of living tissue.

17 Horror rooms simulating common phobias. Are you afraid of spiders, cockroaches, snakes, heights, fire, being buried alive? Enter the black doors and conquer your fears!

DIRUS Software's lost 1999 cult-classic is back! Explore its confusing and stygian world for yourself in this newly remastered edition, and uncover the mystery of its warped labyrinths and crossroads. Find hidden secrets unknown even to the original developers.

You get to pick out a game from the Game Store in town but do not choose a certain game.

Upon visiting his decrepit and dying grandfather, Isaac discovers an ancient evil that has parasitically dwelled within his ancestry for generations. Isaac must stop the parasite's symbiotic cycle from reoccurring or else become its new host.

Atrium Mortis is a first-person psychological horror set in a vacant early 20th-century mansion. Plunge into Arthur's nightmare: explore the family estate, solve puzzles, hide from what lurks in the dark, and most importantly... always stay in the light. Will you uncover the truth?

FoMO is an experimental first-person horror with unpredictable mazes, a suffocating atmosphere, and a decaying retro look. No weapons, only escape, paranoia, and choices that accelerate the horror.

You are the Nightslink. Traverse abandoned roads under cover of night. Deliver cassette tapes in a post-apocalyptic world. An atmospheric retro-3D horror adventure.

Henry is an elderly man with regrets. Over the course of his life, he has killed three times. He is about to kill again. Survive a home invasion as you recount his life through a series of dreamy vignettes featuring a thief, a friend, a lover, and mysterious bartender.

Vellar is a first-person psychological horror game. Explore a terrifying house and uncover the mysteries behind the deaths of its members. Experience intense fear through its chilling atmosphere.

The Midnight Biohazard is a first person choice based horror game set in an abandoned mining site. Your employer sent you to clean up the mining site after it was abandoned due to a new liquid being found in the mines, making everyone die. They are watching you. THEY WANT YOUR EYES.

EPONYMOUS: In Which a Work Is Known by Its Reading is a short-form narrative about unreliable infrastructures.