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Similar to Operator: Observation — based on shared gameplay and genres, popularity and reviews. The original game is excluded from the results. Remove comparison
The first 500 games were considered for comparison of 1,739 initial matches. Similar games among them: 462. Refine the filters to narrow the selection.
In this first-person horror game, sanity changes everything and can turn nights into a living nightmare. Survive at Tamixa School whilst carrying out various tasks, keeping your cool and avoiding Julio and his friends.
Shared features: Horror, Mystery, Single-player
"Descend into liminal space—evade lurking horrors, solve cryptic puzzles, and use your camera to preserve the memories you leave behind in this eerie world. Switch to night vision to uncover hidden clues and trace what's amiss. This first-person indie horror will keep you guessing at every turn."
Shared features: Horror, Mystery, Single-player
Dad is acting strange, and maybe you're the only one who noticed. Meet Not My Dad, a first-person psychological horror game where evil may be lurking inside your own home.
Shared features: Horror, Mystery, Single-player
A psychological horror game where a stepfather is left alone with a disturbing child. Explore a quiet house, face growing nightmares, and piece together the truth behind the boy’s behavior.
Shared features: Horror, Mystery, Single-player
Property Inspection is a short first-person psychological horror game about completing a routine inspection of Unit 47. Examine the apartment, document structural issues, follow your checklist, and finish the job when the final task stops making sense.
Shared features: Horror, Mystery, Single-player
Tarpit is a psychological indie horror game where you have to make TAR to rescue your friend from danger. Beware of the forces in your surroundings. The forces definitely see you... but do you see them?
Shared features: Horror, Mystery, Single-player
A psychological horror experience set in the Backrooms. Explore a failed government facility, hack corrupted systems, and descend into a story where memory and reality collapse.
Shared features: Horror, Mystery, Single-player
Under Review is an anomaly-hunt horror game. Inspect uncanny hotel rooms, document discrepancies and survive the strict, unforgiving bureaucracy of the Manager.
Shared features: Horror, Mystery, Single-player
Observation Horror in an isolated Appalachian cabin, 2005. Watch seven grainy CCTV feeds, identify and report 800+ hand-crafted anomalies, and hold your sanity together while a silent Wendigo hunts the room you are sitting in. Survive the shift: 0:00 to 7:00.
Shared features: Horror, Mystery, Single-player
Welcome aboard, Confiner! As PhaigeX Megacorp’s newest specialist, you’re tasked with curbing the AI incursion into hyperspace sectors. Choose your ship, upgrade your modules, accept commissions, and deploy adaptive strategems to fend off the relentless AI invasion.
Shared features: Management, Horror, Single-player
Anomaly Express is a 1–4 player co-op psychological horror aboard a winter train. Spot anomalies, survive deadly encounters, and uncover the supernatural force behind this endless journey.
Shared features: Horror, Mystery, Single-player
Dive into Yuha's nightmares. Bear witness to a glitch apocalypse. Explore the hidden layers of a 3D-dreamscape. Piece together her memories and fears. Experience a true haunting with vanishing staircases, lost voices and time that keeps running out.
Shared features: Horror, Mystery, Single-player
Why is there a giant egg in this lab? Your job is simple: crack it open. Don't ask questions. CRACK is a 1-4 player co-op incremental adventure about uncovering what's inside a mysterious giant egg.
Shared features: Horror, Mystery, Single-player
You are the night shift supervisor at the warehouse of the postal company. You need to make sure that there is nothing prohibited in the package, but are all parcels worth checking?
Shared features: Horror, Mystery, Single-player
A dark Metroidvania-style shooter with dangerous bosses and surreal horror. Explore twisted locations, search for weapons, and save your wife from the clutches of demonic forces.
Shared features: Horror, Mystery, Single-player
Can a toy car become the hero of a video game? One night, its owner mysteriously vanished without a trace. Left alone in the quiet room, this little car sets out on a spooky and mysterious journey - to find the boy...
Shared features: Horror, Mystery, Single-player
Messa Anomaly is a first-person psychological horror game set in an endlessly shifting museum. Observe each corridor, spot unsettling changes, and choose the correct path. One mistake can send you deeper into a night shift that refuses to end.
Shared features: Horror, Mystery, Single-player
After trying to start a new life, you find yourself trapped in H.H. Holmes' Murder Castle. Your mission is to escape his prison of death. Each room presents you with a new challenge and reveals something about the story behind H.H. Holmes. Can you escape the architect of death?
Shared features: Horror, Mystery, Single-player
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.
Shared features: Horror, Mystery, Single-player
Forbidden Door is a dreamlike and surreal journey, witness bizarre metaphorical and surreal scenes in a world that changes shape as you overcome simple challenges.
Shared features: Horror, Mystery, Single-player
Look for sister. Die. Start again. Avoid stalker. Die. Hide. Die. Seek keys. Die. Sneak. Die. Reach final area. Survive. Repeat. Do you have what it takes to escape the horror of the White Mask Mansion?
Shared features: Horror, Mystery, Single-player
Lost in amnesia, face a horrific past rising from nightmares. Uncover the truth hidden in a diary. In this psychological horror where reality and hallucination blur, piece together memories before madness consumes you. When the truth is out, ask yourself: Who was I?
Shared features: Horror, Mystery, Single-player
Sam agrees to help his friends by staying the night in their house while they leave for urgent business. Outside, a heavy rainstorm rages, with loud thunderclaps shaking the walls and creating an oppressive atmosphere.
Shared features: Horror, Mystery, Single-player
While her husband is away, Liora is forced to spend her days alone. But solitude is not as quiet as she thinks.
Shared features: Horror, Mystery, Single-player
Popularity is the total number of Steam reviews, not sales or concurrent players. Activity is the average net daily growth in reviews over the longest stable window of up to 7 days; it requires at least 12 hours of history and data updated within the last 72 hours. It measures discussion volume, not sentiment. Anticipation for upcoming games is measured separately. Missing measurements do not mean a game is unpopular.
