Top similar games like Atrium Mortis:

Infinite Innocence is a game about finding anomalies, but it is very easy to see them with lighting. What if we give it a little more difficulty and tension? Will you be able to remember everything until the end?

Ritual is a first-person psychological horror game. Immerse yourself in this sinister experience of terror, where everything familiar becomes strange to you, find the necessary elements to complete the ritual and solve the mystery.

Drawn back to his home, Dave searches for closure in the decaying remnants of his past. But the house is not as he remembers—shadows linger where they shouldn't, whispers echo through the halls, and buried memories refuse to stay forgotten. Explore the abandoned home and a past that won’t let go.

You are inside an endless hotel but there is a way you can escape. Search in the hallways of the hotel and find the changes within them to reach Room 13.

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.

Spot the anomalies. Escape the loop. Akeno’s Veil is a psychological horror game where spotting anomalies is your only escape—from the relentless demon determined to pull you back.

"The Jester" is a first-person psychological horror game with VHS effect. Something lives in the shadows and feeds on your fear. Are you ready to dive into insanity?

You are trapped in an endless underground passageway. Observe your surroundings carefully to reach "The Exit 8".

The Hotel is a psychological horror thriller in which the player will have to face the evil living within the walls of a lonely hotel. But more importantly, the player will have to decide what this evil is to him. Maybe the nature of this evil is deeper than it seems at first glance.

Explore a looping corridor filled with anomalies. Walk through the fluorescent-lit backrooms environment, examine your surroundings, and spot subtle changes in reality.

Obfuscation is a first-person indie horror game set entirely within a mysterious house. You don’t know how you got here - or why. Explore the house, overcome the challenges, and uncover the truth.

Welcome to [Game Title], a terrifying indie horror/Puzzle game that will have you on the edge of your seat! You play as [Protagonist], who finds themselves trapped in a [Location] filled with danger and terror. Use your [Gimmick mechanic] to find your way out!

Enter the endless hall where reality distorts. Spot anomalies, correct them, and uncover the dark truth—miss one, and you may be lost forever.

The doctor said today was my last appointment, I'm healthy. Time to go home, what could go wrong?

You are inside an endless Highschool but there is a way you can escape. Search in the hallways of the school and find the changes within them to reach Room 14.

"Psalm 5:9-13" is a first-person psychological horror game with VHS effect. Be careful and attentive, there is something hiding in these rooms, something is watching from the darkness.

I found myself in a strange house and I'm scared

Descend into the forgotten depths of Banban’s Kindergarten. Survive sinister horrors and unravel dark secrets hidden in every corner. Uncover the truth behind the facility and find the whereabouts of your missing child…

You are trapped in an endless hallway. Observe your surroundings carefully to reach your destiny.

You’re trapped in a strange communal apartment with no escape. The only way forward is by elevator, but it has only two buttons. Each correct choice brings you closer, but every mistake sends you back to the start.

In Lost in Anomaly, you wake up on the 9th floor of an unknown building. The only way out of here is to detect and mark anomalies. One wrong move and you could be trapped forever.

Step into the shoes of a Father and Son as they navigate the challenges of taking care of one another in 'I REMEMBER', a psychological horror game. Traverse through decaying environments as you hide from terrors that threaten to consume you.

The Backrooms: Unbounded is a Free Simple Linear single player first person body camera horror game based on the backrooms. You take the role of a police officer who noclips out of reality while on duty. Will you make it out alive?

You find yourself trapped in a haunted VHS rental store, can you survive their twisted games and escape?

The Death | Thần Trùng is a Viet Nam psychological horror adventure game made by three Vietnamese people from a tiny indie studio. The game takes place in Hanoi city in 2022.

Trapped in a hallucinatory, liminal-space style underground passageway, explore and unravel the endless "dead-end" paths to find a way forward. "Dead Path is a short ambient horror puzzle game that references Exit 8, but with a completely different core mechanic.

Uninvited Guest is a first-person psychological horror game set in 1930. You play as a villager who was destined to end up in an old mansion.

You start from the 10th floor in a hotel and must make your way to the exit. However, you must look for any potential anomalies on each floor to safely make it out.

Explore a seemingly endless hotel floor where each identical corridor challenges your perception. This horror walking simulator tests your observation skills as you seek the emergency exit.

Find your way back home before Metsänpeitto, an otherworldly plane of existence, consumes you. Lempo is a psychological horror game inspired by Finnish mythology with an emphasis on exploration.

You are trapped in an endless stairway with no end in sight. Solve twisted puzzles and maybe you will escape your fate.

Observe your surrounding and be confident there is or is not a anomaly to progress.

A fever-dream-like puzzle horror game. Descend to the depths of a sleeping curse, survive every floor and find your way out of the never ending nightmare.

Silver Chains is a first-person horror game with a strong emphasis on story and exploration. Search for clues within an old abandoned manor to unravel the truth about the terrible events which have happened.

You are a father on a quest for 8 milk cartons. Observe your surroundings carefully to pick up and check out your milk before returning to your family at last.