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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 1,437 initial matches. Similar games among them: 470. Refine the filters to narrow the selection.
Race through a whimsical haunted manor, gather matching clutter into your satchel, return every treasure to its proper place, and banish mischievous spirits before the clock strikes midnight.
Shared features: Management, Horror, Single-player
A live-action horror visual novel set in Osaka Castle Park. Explore the park after dark, make choices, and uncover a disturbing supernatural mystery through footage filmed on location in Osaka.
Shared features: Horror, Mystery, Single-player
Deadhold is a roguelite zombie survival/strategy game where your choices impact who lives and who dies. Rescue survivors, scavenge resources, fortify your base, and protect your community against stress, infection, and zombies! Can you find a sense of normalcy in this cruel new world?
Shared features: Horror, Management, Single-player
EXTINCTION ZONE is a zombie themed combat action survival game with 2D pixel art environments, puzzles to solve and a conspiracy to unravel.
Shared features: Horror, Mystery, Single-player
DERAIL is a horror anomaly game where instead of spotting anomalies you have to cleanse them with you holy camera to escape the loop.
Shared features: Horror, Mystery, Single-player
Sparky Rush is a lost-media PSX platformer with elements of psychological horror, where its developer descends into complete sorrow and madness. Play as Sparky and discover all the morbid secrets left by its creator before his sudden disappearance.
Shared features: Horror, Mystery, Single-player
ASPIS is a story-driven first-person horror game set in the late-1980s USSR. Engineer Andrey enters an experimental system to see his deceased family again. But the machine opens worlds it was never meant to find. Explore the institute and step beyond reality.
Shared features: Horror, Mystery, Single-player
Rest Stop is a psychological horror game set in early 2000s Poland. What begins as a calm drive through the woods turns into something you weren't prepared for... Will you find out what awaits at the end of the road?
Shared features: Horror, Mystery, Single-player
Cold Rails is a horror adventure set on a train. You work as a bartender, serving drinks to passengers and uncovering a story as a mysterious woman in a dress stalks the train.
Shared features: Horror, Mystery, Single-player
Your daughter has been kidnapped. In the trilogy’s final chapter, enter a nightmare to save her, survive what hunts you, and uncover the Red Nun’s truth through retrocognition, mirror abilities and moth manipulation. A modern return to classic survival horror with an Italian neo-giallo twist.
Shared features: Horror, Mystery, Single-player
Something dangerous is lurking in the wilderness. Wilderdark is a first-person survival horror game where you must navigate a strange island inhabited by ectoparasitic dinosaurs and organisms. You must remain vigilant to stealthily obtain evidence, samples, and craft items to survive.
Shared features: Horror, Mystery, Single-player
Horror Game Creator lets you build and explore your own liminal horror worlds. Design levels, customize enemies, lighting, and items, and create unique experiences—from quiet, eerie spaces to intense survival scenarios.
Shared features: Horror, Mystery, Single-player
Maintain reality or watch it collapse. Backrooms: Betrayal is a co-op liminal horror game where the environment is the antagonist. Stabilize shifting sectors against a tide of entropy, but watch your team. Every failure has an explanation, but not every explanation is innocent.
Shared features: Horror, Mystery, Single-player
Dungeon. Horror. Survival. Dawn of Irkalla plunges you into a terrifying world of dungeon exploration: find loot, outsmart monsters, and uncover hidden artifacts for a shadowy government agency. Build your deck, use your items wisely, and escape before time runs out. Your survival depends on it.
Shared features: Horror, Mystery, Single-player
A first-person psychological horror game set beneath a condemned 1989 telephone archive. Tune impossible calls, evade a creature that hunts every sound you make, and decide which evidence the city is allowed to remember.
Shared features: Horror, Mystery, Single-player
Scared by Squares is a psychological horror game and an experiment in fear: can a simple cube scare you? Explore unsettling liminal spaces, solve environmental puzzles, survive hidden traps, and hunt anomalies in a world of corrupted geometry.
Shared features: Horror, Mystery, Single-player
What if you couldn’t wake up from your worst nightmare? BURIED INSIDE ME is a first-person psychological horror experience where you find yourself trapped within your own dream. Explore, solve puzzles, and survive yourself.
Shared features: Horror, Mystery, Single-player
A psychological horror about repetition, isolation, and the need to keep moving forward. Keep pushing. Don't stop. Break through.
Shared features: Horror, Mystery, Single-player
You wake up tied to a chair. Again. Dig underground, avoid whatever hears you digging and descend into the house where a woman in white hums your lullaby. First-person Japanese horror: don't look back when they sing kagome kagome.
Shared features: Horror, Mystery, Single-player
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
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
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
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
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.
