Top similar games like Project:Null Hypothesis:

In this mind-bending puzzle game, you are trapped in a place that looks ordinary but hides strange and unsettling mysteries. With each step you take, you find yourself back where you started. To escape, you'll need to scrutinize every detail, unravel inconsistencies, and break the endless cycle.

Are You Lost? Wander endless corridors where shifting environments, sinister voices, and echoes of real events create a chilling atmosphere. Andrey doesn’t remember who he was, but the walls know the truth. It’s time to remember everything.

Jump into a mysterious world filled with weird favours & puzzles and uncover the truth of what's happening behind the scenes.

Fragments of Dread is an episodic psychological horror series. Each episode tells a self-contained story of dread, fear, and survival.

Wish Eater is a horror game with touches of action where you explore a building in search of a girl who disappeared without a trace. Solve puzzles, search for clues and recreate her steps to discover the mystery of her disappearance. Depending on the investigation you will reach different endings.

Omitted is a first-person psychological horror game. Experience being left alone in an old hospital, discover its secrets and try to survive.

Horror Family - Flight is a time-loop horror game set on an airplane.

Implements of Hell is a first-person psychological horror game. Explore the mysteries, unlock the secrets, and change the outcome in a slow-paced atmospheric, and extremely horrifying experience.

Vendigo Corporation - is an atmospheric first-person psychological horror game. You must escape from the underground complex where experiments have gone out of control.

Uncover your grandfather's sinister experiments in "Shattered Reflections." Dive into a twisted Mirror Realm, face every-minute terrors, collect Soul Essence, and shape your fate. Are you ready for a psychological descent into darkness?

BACKROOMS: LIMINAL ESCAPE is a VHS-style horror game where you explore eerie liminal spaces through a camcorder. BACKROOMS: LIMINAL ESCAPE is More than just a walking sim, it features intense levels that require you to hide, run, stay quite, and survive in a creepy, analog nightmare.

A Man’s Work is an indie horror game about two friends making a horror short on New Year’s Eve.

You’ve been hired by a real estate agency to take photos of their listings at night to give them a unique look online. Grab your camera, step into dark, quiet rooms, and capture every shot before the house notices you. Finish the job or never leave.

A psychological horror game with NO jumpscares. Feel the tension and suspense, get goosebumps, experience strange frightening events, and explore, look for keys, solve puzzles, while thinking hard to find a way to get out of this huge, and maybe not so empty prison.

In a remote provincial town, teenagers mysteriously disappear every 25 years. You're a high school student about to turn 18... But what if you become the next victim?

A hyper-realistic bodycam survival horror experience. Navigate through eerie, abandoned locations where the line between reality and nightmare blurs. Built on Unreal Engine, every sound, shadow, and step immerses you deeper into a world of terror. Will you survive what lies behind the veil?

Investigating the mysterious death of his grandmother, a detective breaks into her home to discover the truth, but the dwelling begins to play tricks on him. The space breaks, fears become flesh, and there is still no way out. Every step, every new room, every cycle is a chance to go mad.

An old cabin in the woods holds secrets. Explore the environment, search for objects and find a way out in a first-person horror.

It’s an indie horror game where John, a forensic photographer, after an unexpected and exhausting shift, is forced to spend the night away from home. What seemed like a temporary rest soon begins to turn unsettling.

"Father's Day" - a psychological thriller that is a spin-off and prequel to the game "Find Yourself". The dream of living happily ever after was destroyed after Phil lost his wife and son. Obsessed with the desire to return them, he develops a plan.

Screaming In The Basement is a first-person psychological horror game, delving into an evil rooted in darkness, a realistic and immersive horror atmosphere. Experience investigative reporter Mike’s descent into a tragic family murder.

It's a short indie horror game where we step into the shoes of Alex, a student who, in search of more comfort, rents an apartment in the city that, at first glance, seems pretty decent — but upon arrival, he realizes something is not right.

"Clandestine: The Hidden Truth" is a first-person psychological horror game. Investigate a family homicide, manipulate reality with polaroids, and solve puzzles to unveil chilling secrets hidden within this enigmatic home of horrors. Will you come back unscathed?

Imagine being the owner of a factory and going back years later it was abandoned because your brother has recently gone missing? This is a game you wouldn't want to miss...

Investigate a family’s gruesome fate, communicate using your microphone to uncover the truth, and hide from the spirit. Film the whole experience in your camcorder for the world to see.

Survival horror with realistic graphics based on Unreal Engine 5. Ten highly detailed levels: liminal world, puzzles and creatures. New levels and content regularly. Experience unbearable horror and find a way to escape from...

In an attempt to pick up your daughter from school, you must face your past and overcome your deepest fears. This is a psychological horror game where you are a parent going back to school.

Exit 13 Gallery Escape is a psychological horror game where you are trapped in a gallery on the 13th floor of a building. Your only hope is to find the exit and reach the 1st floor, but every time you do, you end up in the same gallery again and again.

Psychological horror, which is part of the games CASE: Animatronics and CASE 2: Animatronics Survival.

A haunted house, whispers from the past, and a truth you were never meant to uncover. Psychological horror inspired by real locations in Greece.

An alien hides among the pigs. Can you spot the imposter before it's too late? A tense observation horror game inspired by The Thing, where every oink could be your last.

Sub Terra is a first person psychological horror game set deep underground. As a maintenance worker, your job is to fix a broken water line at the end of tunnel 04-R. Enter the tunnel, repair the pipe, and get out.

AMIRA is a psychological horror game in which a grieving father tries to uncover what happened to his family. During his investigation, he stumbles upon horrific secrets from both the past and the present.

A psychological horror game where players explore eerie liminal spaces through the lens of an old camera. Solve environmental puzzles, uncover hidden paths, and survive lurking threats in a surreal, non-linear world that blurs the line between reality and dreams.

The Past is a story-driven psychological horror and thriller game. Can you solve the events and the mystery underlying the game, which is about the reflection of the events that happened in the past to the present day of a 21-year-old university student named Enes?