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Games Like S.I.N. Unit: Ghost Investigation & Removal

60+ similar titles based on shared tags and player behavior. Themes include Horror, Online Co-Op, Multiplayer, Psychological Horror.

S.I.N. Unit: Ghost Investigation & Removal header art

S.I.N. Unit puts you into the shoes of a paranormal investigator. Together with other people like you, you will enter haunted locations full of paranormal activity to investigate and catch the entity or ghost that haunts the place. A good entity will also appear to help you. 1-4 Players.

Reviews: Mixed — 55% — of 47 reviews
Released: 2021-09-07
Developer: Black Stairs
Genres: Casual, Indie
Platforms: Windows, Mac, Linux

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  1. #1 Entity Research Group
    97% matchNo user reviews
    Dev: Faceless Smile Corp.
    Windows

    Entity Research Group — a cooperative first-person horror game where you become part of a special unit investigating highly dangerous anomalous entities. Collect evidence and samples, complete technical objectives, and survive within the ever-changing Backrooms clusters.

    Why similar: Investigation 14.7%, Online Co-Op 13.3%, Psychological Horror 9.9%, Horror 9.3%, Co-op 8.9%

  2. #2 FEARMATES
    96% matchNo user reviews2026
    Dev: EOVA
    Windows

    Fearmates is a 1–4 player co-op psychological horror game. As a group of friends, you explore locations with paranormal activity and uncover the truth behind the events using your own equipment.

    Why similar: Investigation 13.9%, Online Co-Op 12.8%, Survival Horror 11.5%, Psychological Horror 9.8%, Horror 8.7%

  3. #3 Ratman
    96% matchNo user reviews
    Dev: TitanStrike Games
    Windows

    Ratman is a 1-4 player online co-op survival horror game. A creature called “Ratman” is terrorizing local dwarfs. You and your fellow brave dwarf knights decide to sneak into his lair in order to burn his supplies. Find matches and burn his cheese stock, but don't get caught by the murderous Ratman!

    Why similar: Online Co-Op 14.8%, Psychological Horror 10.5%, Horror 10.4%, Co-op 10.2%, Survival Horror 9.5%

  4. #4 SCP: Containment Chaos
    95% matchNo user reviews
    Dev: PhantomBlade
    Windows

    SCP: Containment Chaos is a co-op horror survival game for 1-4 players. Become SCP Foundation agents tasked with containing and researching anomalous entities in parallel universes. Solve a variety of unique tasks tailored to each SCP, all while striving to maintain order in the unimaginable chaos.

    Why similar: Online Co-Op 16.1%, Survival Horror 15.5%, Horror 11%, Psychological Horror 10.9%, Co-op 10.9%

  5. #5 LAG KILLS
    94% matchNo user reviews2026
    Dev: DERANGED GAMESPub: Zemore Indie Games
    Windows

    Desperate and out of options, you break into what you thought was an empty house, but little do you know the owner is home, and you're his prey. LOOT, HIDE, SURVIVE and ESCAPE alone or with a friend.

    Why similar: Online Co-Op 17.1%, Survival Horror 15.6%, Horror 11.7%, Dark 10.8%, Psychological Horror 9.4%

  6. #6 Inside the Backrooms
    94% matchVery Positive81% of 45,968 reviews2022
    Dev: MrFatcat
    Windows
    Median: 4.7 hrsMean: 15.0 hrs≥1hr: 87%

    Inside the Backrooms is a horror multiplayer game mixed with different mechanics that will make you spend an intense night with friends. Explore, think, interact, but be careful, it is rumored that there are several entities wishing to find you...

    Why similar: Horror 16.1%, Survival Horror 14.3%, Online Co-Op 11.6%, Multiplayer 11.4%, Psychological Horror 10.5%

  7. #7 BackRooms X
    93% matchNo user reviews
    Dev: XGT Company
    Windows

    BackRooms X is a game that combines all quality backrooms games into one. The game features many levels where you will have to avoid strange creatures and solve puzzles. The gameplay is full of exploration and survival elements, where every detail matters.

    Why similar: Investigation 15.4%, Online Co-Op 14%, Survival Horror 13.5%, Psychological Horror 11%, Co-op 10.1%

  8. #8 Endless Shift
    92% matchNo user reviews
    Dev: Ivan Huliakevich
    Windows

    Endless Shift is a 1-4 player co-op horror exploration game. Trapped in a office building, you and your friends must work together to solve puzzles, evade monstrous entities, and escape before it's too late.

    Why similar: Survival Horror 13.9%, Psychological Horror 13.2%, Online Co-Op 12.6%, Horror 11.3%, Realistic 10.1%

  9. #9 Liturge
    91% match8 user reviews100% of 8 reviews2025
    Dev: No Cry Studio
    Windows

    Liturge is a cooperative investigative horror game for 1-4 players. A team of LRI Operators investigates haunted locations, gathers paranormal evidence, and identifies the entity responsible for the activity.

    Why similar: Investigation 15.7%, Online Co-Op 13.5%, Survival Horror 10.6%, Co-op 9.5%, Horror 9.3%

  10. #10 Trail of the Cryptid
    91% matchNo user reviews
    Dev: No Spoon Games
    Windows

    Uncover the mysteries lurking in the wilderness. Team up with friends to find a creature that is stalking people. Gather evidence using stealth or confront the creature head-on in this thrilling co-op survival adventure.

    Why similar: Investigation 13.8%, Online Co-Op 12.6%, Survival Horror 12.2%, Psychological Horror 9.4%, Co-op 8.6%

  11. #11 Unease
    90% matchNo user reviews
    Dev: Alcedo Games
    Windows

    UNEASE is a 1 to 4 players co-op survival horror game presenting an array of episodes with innovative mechanics and different settings.

    Why similar: Survival Horror 15.3%, Online Co-Op 14.6%, Psychological Horror 12.2%, Co-op 10.5%, Horror 9.8%

  12. #12 The Silent Expedition Echo Protocol
    89% match2 user reviews100% of 2 reviews2026
    Dev: Psycho Dream Studio
    Windows

    Co-op first-person horror for 1–4 players. You and your friends are trapped in endless liminal backrooms where nothing makes sense. Explore, find keys and almond water, and work together to evade unstoppable monsters and escape.

    Why similar: Online Co-Op 17.7%, Survival Horror 16.8%, Co-op 14.7%, Psychological Horror 12.3%, Horror 9.5%

  13. #13 Vicera
    88% matchMixed69% of 16 reviews2024
    Dev: CRK Games
    Windows

    Vicera is an online co-op game. Play as relic hunters, solving enigmatic mysteries and escaping a terrifying monster. Will you dare to face the darkness to find the cursed relics?

    Why similar: Online Co-Op 16.4%, Psychological Horror 12.7%, Co-op 11.1%, Horror 11.1%, Dark 9.5%

  14. #14 Psycho Reign
    89% matchMixed67% of 57 reviews2022
    Dev: D4
    Windows

    Psycho Reign is a Single or 2 player co-operative online horror puzzle and stealth game where in each level you will be chased by blood thirsty psychos. Look for and solve mini puzzles in order to progress further on the map. Ultimately, find something to fight back...or get chopped up.

    Why similar: Online Co-Op 14.2%, Survival Horror 14%, Dark 9.9%, Co-op 9.7%, Horror 9.6%

  15. #15 Synapse: Lockdown
    87% matchNo user reviews2026
    Dev: Cresent
    Windows

    "Synapse: Lockdown" is a co-op FPS survival horror game. As a member of the Hermes team, you're deployed to the threatened city of Pantheon. Explore facilities, complete missions, and escape safely. Gather weapons and items, and work with your team to face unknown horrors.

    Why similar: Online Co-Op 12.7%, Survival Horror 10.8%, Psychological Horror 10.2%, Co-op 8.5%, Horror 8.1%

  16. #16 Dead Blue Rose
    86% matchMostly Negative35% of 49 reviews2024
    Dev: ColdBones
    Windows

    A multiplayer horror where you escape a laboratory at the cost of others.

    Why similar: Survival Horror 17.6%, Psychological Horror 13.1%, Horror 12.6%, Co-op 11.5%, Multiplayer 8.8%

  17. #17 Remnant Records
    86% matchMostly Positive77% of 683 reviews2024
    Dev: Noctiluca Studio
    Windows
    Median: 2.3 hrsMean: 25.7 hrs≥1hr: 68%

    Remnant Records is a horror investigation game for 1 to 4 players. Explore places haunted by the dead, survive elaborate and unique ghosts and find out what happened to them through thousands of generated stories.

    Why similar: Investigation 15%, Online Co-Op 12%, Survival Horror 11.9%, Psychological Horror 9.1%, Co-op 8.8%

  18. #18 Restricted Footage
    85% matchMixed51% of 45 reviews2023
    Dev: Aqua Games
    Windows

    “Restricted Footage” is a horror and survival game for up to 4 players. You are entering into an area, where reportedly paranormal stuff is happening. Your purpose here is to take a footage with your action cam and to solve the paranormal case.

    Why similar: Online Co-Op 15.9%, Survival Horror 13.6%, Co-op 11.2%, Psychological Horror 11.1%, Horror 10.7%

  19. #19 NO BACKUP
    84% matchNo user reviews2026
    Dev: Serundeox
    Windows

    Escape together or die alone. In this intense co-op bodycam horror game, you and your team are hunted by a relentless creature. Communicate, stay quiet, and fight to survive. Every move counts. Every sound could be your last.

    Why similar: Horror 15.2%, Online Co-Op 13.7%, Survival Horror 12.7%, Psychological Horror 12.6%, FPS 10.6%

  20. #20 Ghost Janitors
    82% matchVery Positive86% of 666 reviews2025
    Dev: Interactive Wave Studio
    Windows
    Median: 2.1 hrsMean: 3.0 hrs≥1hr: 81%

    Ghost Janitors is a multiplayer psychological horror game for 1-4 players. Your job? Cleaning haunted houses while avoiding terrifying monsters. Ready to face the spine-tingling challenge with your team?

    Why similar: Online Co-Op 15.3%, Investigation 13.4%, Psychological Horror 12%, Horror 10.6%, Co-op 8.6%

  21. #21 The Backrooms - Nightmare Dimension
    84% matchMostly Negative29% of 14 reviews2023
    Dev: Savage Howl
    Windows · Mac · Linux

    The Backrooms - Nightmare Dimension is a Co-op online horror game with up to 4 players, where you and your friends take on the roles of soldiers who are part of the SCP Foundation with the mission to eliminate the mysterious entities found in the infamous place called "the Backrooms".

    Why similar: Online Co-Op 14.8%, Investigation 13.8%, Survival Horror 13.1%, Psychological Horror 11.2%, Co-op 10.1%

  22. #22 CoopRooms
    82% matchNo user reviews
    Dev: ZTEK Studio
    Windows

    CoopRooms is a co-op survival horror game for up to 5 players, set in the endless Backrooms. Take photos and videos while you progress - and maybe survive. Just don’t scream... the Entities are listening.

    Why similar: Online Co-Op 16.2%, Survival Horror 15.5%, Psychological Horror 14%, Co-op 12.5%, Horror 12.5%

  23. #23 DEVOSE
    81% matchMixed67% of 12 reviews2025
    Dev: Nosmo StudioPub: NosmoStudio
    Windows

    DEVOSE is a cooperative horror game for 1 to 4 players. Explore, find proofs and survive. Every corridor is a trap. Every noise can betray you. Coordinate or die alone.

    Why similar: Online Co-Op 17.4%, Investigation 16.1%, Horror 12.8%, Survival Horror 11.1%, Multiplayer 8%

  24. #24 Broken : Paranormal investigation
    83% matchMixed54% of 37 reviews2022
    Dev: Andromede Studio
    Windows

    Investigate, exorcise, but above all, stay alive! BROKEN is a game of investigation and exorcism. Solo or cooperative online, the goal is to solve paranormal investigations. Online, Broken can be played by 2 to 4 players.

    Why similar: Investigation 18.9%, Survival Horror 13.8%, Online Co-Op 13.3%, Psychological Horror 10%, Horror 9.1%

  25. #25 Bureau of Contacts
    81% matchMostly Positive78% of 648 reviews2025
    Dev: MIROWIN
    Windows
    Median: 1.7 hrsMean: 3.2 hrs≥1hr: 63%

    "Bureau of Contacts" - ghost-hunting game for 1-4 players, in which you'll encounter 2 enemies at once - location itself and the ghosts with most human-like intelligence ever. So...look around and watch what you say!

    Why similar: Online Co-Op 18.4%, Survival Horror 14.8%, Investigation 13.9%, Horror 12.8%, Co-op 12.3%

  26. #26 Paraxima
    80% matchNo user reviews
    Dev: Litio Games
    Windows

    An online co-op horror (up to 3 players) where you investigate Breaches as reality collapses. Every action is an Infringement that raises the danger, angering the Entity. Use dynamic tool-based roles to classify, contain, and escape before your sanity breaks. Adapt together or die alone.

    Why similar: Investigation 14.4%, Online Co-Op 12.2%, Survival Horror 11.5%, Psychological Horror 10.5%, Co-op 9.9%

  27. #27 Midnight Overtime
    79% matchNo user reviews2026
    Dev: EXS
    Windows

    A first-person atmospheric horror experience where hidden clues and impossible spaces draw you deeper into a place that should not exist.

    Why similar: Survival Horror 19.9%, Psychological Horror 16.7%, Investigation 16.6%, Horror 15.8%, Mystery 11%

  28. #28 Voidseekers
    79% matchNo user reviews
    Dev: Sam Lawrence
    Windows

    Voidseekers is a 1-4 player co-op horror FPS. Shoot, salvage, and survive as you explore corrupted ships in deep space. Get in, take what you can, and destroy the ship to contain the breach, but beware the horrors that seek in the void.

    Why similar: Online Co-Op 16.8%, Survival Horror 15.9%, Horror 10.7%, Psychological Horror 10.1%, PvE 8.9%

  29. #29 Last Frontier
    78% matchNo user reviews
    Dev: INVISIBLE SOLUTIONS
    Windows

    Last Frontier is a cooperative horror game where a team of medics fights against World War II mutants. Players must burn mutated creatures using a gas torch to collect ingredients for creating an antidote.

    Why similar: Online Co-Op 14.8%, Co-op 11.8%, Survival Horror 11%, PvE 10.5%, Psychological Horror 9.2%

  30. #30 Silent Rain
    77% matchMostly Positive70% of 220 reviews2024
    Dev: 2Brains&CoffeePub: Seedlers Interactive
    Windows

    Silent Rain is a challenging and immersive co-op horror game, for 1 to 4 players. Explore abandoned locations, solve puzzles, and gather information while trying to survive the threats lurking in the dark. How many tries will it take you to master your fear?

    Why similar: Survival Horror 15.8%, Online Co-Op 13.5%, Horror 11.5%, Co-op 10.4%, Psychological Horror 10.3%

  31. #31 Lunch Lady
    78% matchVery Positive85% of 12,918 reviews2021
    Dev: Manic Mice
    Windows
    Median: 2.2 hrsMean: 5.8 hrs≥1hr: 76%

    Lunch Lady is a 1-4 player online co-op survival horror game. The school final exams are coming up and the best idea you and your friends had was to steal the test answers. Find all 10 pages and don't get caught by the murderous Lunch Lady!

    Why similar: Online Co-Op 17.5%, Survival Horror 13.7%, Horror 13.5%, Co-op 10.6%, Psychological Horror 8.6%

  32. #32 Project Plague
    76% matchNo user reviews
    Dev: Grejuva
    Windows

    Project Plague is a multiplayer horror and survival game for 1-5 players set in a medieval world besieged by the plague. Solve mysterious rituals, use your role-specific abilities, escape deadly enemies, and protect your team in this cursed time... or betray them!

    Why similar: Survival Horror 13.9%, Online Co-Op 13.9%, Psychological Horror 10.8%, Co-op 9.3%, Horror 9.3%

  33. #33 Phylakterion
    77% matchMostly Positive78% of 68 reviews2023
    Dev: Lich Again Games
    Windows

    Phylakterion is a 1-4 player online co-op horror game in which you’ll enter different locations in search of a possessed vessel. Search, Identify, and Destroy the vessel and the entity inhabiting it – before the entity finds YOU!

    Why similar: Investigation 22.4%, Psychological Horror 12.8%, Horror 12.2%, Mystery 11%, Realistic 9.6%

  34. #34 PSYKOS
    76% matchNo user reviews2026
    Dev: Empty Field
    Windows

    PSYKOS is a 1-4 player online co-op psychological horror set in a cursed psychiatric hospital. Work together to explore the abandoned asylum, solve puzzles, and survive the monsters that roam its halls. Rescue your friends before it’s too late.

    Why similar: Online Co-Op 18.3%, Survival Horror 15.1%, Horror 13.4%, Psychological Horror 12.7%, Co-op 9.4%

  35. #35 Deepscape Inc.
    75% matchNo user reviews2026
    Dev: Nobila TraorePub: Night UFO
    Windows

    In a world where traditional executions have been deemed immoral, the state has turned to a new solution: Deepscape Inc..Presented to the public as a humane alternative, Deepscape Inc. claims to provide a more "compassionate" method of ending the lives of condemned prisoners.

    Why similar: Survival Horror 15.1%, Online Co-Op 13.4%, Psychological Horror 12.1%, Investigation 10.3%, Horror 10.2%

  36. #36 Retreat
    75% matchNo user reviews
    Dev: a1esska
    Windows

    A cooperative psychological horror game where you are a test subject in a series of inhuman experiments. Open the door to the unknown, team up with fellow sufferers and together try to find a way out of this nightmare.

    Why similar: Online Co-Op 18%, Survival Horror 13.4%, Psychological Horror 12.2%, Horror 11.5%, Co-op 10.4%

  37. #37 Backrooms: Escape Together
    74% matchVery Positive88% of 34,229 reviews2022
    Dev: Triiodide Studios
    Windows
    Median: 3.9 hrsMean: 5.6 hrs≥1hr: 91%

    A visually lifelike co-op horror for 1-6 people. Journey through 10 procedurally generated levels, using what's available to survive and progress deeper into the Backrooms.

    Why similar: Online Co-Op 18%, Survival Horror 16%, Horror 13.5%, Psychological Horror 13.1%, Co-op 10.7%

  38. #38 Species: Unknown
    71% matchVery Positive95% of 6,260 reviews2025
    Dev: WanadevStudio
    Windows
    Median: 4.7 hrsMean: 7.3 hrs≥1hr: 91%

    Species: Unknown is a 1 to 4 players co-op survival horror. Complete high-risk missions aboard an abandoned ship while being hunted by an unknown creature. Survive and upgrade your gear to face each new threat that lurks in the dark.

    Why similar: Online Co-Op 16.4%, Investigation 14.8%, Survival Horror 13%, Horror 11.1%, Psychological Horror 8.1%

  39. #39 Project Unknown
    72% matchVery Positive83% of 893 reviews2025
    Dev: PsychoRavensPub: Nightmare Studios
    Windows
    Median: 2.0 hrsMean: 4.4 hrs≥1hr: 74%

    An online co-op horror game featuring unique playable characters and RPG mechanics. Exorcise ghosts using your special abilities and tools while surviving the supernatural onslaught

    Why similar: Investigation 14.7%, Online Co-Op 14.1%, Survival Horror 12.4%, Psychological Horror 10.3%, Co-op 9.5%

  40. #40 Holey
    73% matchNo user reviews2026
    Dev: Kelecik
    Windows

    A co-op horror game where you are part of a crew sheltering in a collapsed tunnel, scavenging loot across maps filled with deadly creatures born from a biological war. Feed the creature, convert its waste into fuel, and reach the radio tower

    Why similar: Horror 14.7%, Co-op 14.7%, Online Co-Op 13.7%, PvE 11.1%, Psychological Horror 10.2%

  41. #41 The Limb
    73% match6 user reviews0% of 6 reviews2024
    Dev: Telecom Soft
    Windows

    In a post-apocalyptic world overrun by monsters due to an unknown virus, some people have managed to survive. During these times, an organization formed by elite members of society emerged, fighting against the monsters and aiming to restore the world to its original state.

    Why similar: Online Co-Op 19.9%, Survival Horror 14.8%, Horror 13.4%, Co-op 11.5%, Psychological Horror 10.7%

  42. #42 Daemonium
    72% match9 user reviews89% of 9 reviews2024
    Dev: Steel Feather Studio
    Windows

    Daemonium is a 1-4 player online co-op psychological horror game. Demonic possessions are running rampant. Grab your equipment, join your team, and locate the source of the demonic presence. Enter the portal to the demon realm and perform an exorcism to banish the demon to hell.

    Why similar: Investigation 17.1%, Online Co-Op 12.7%, Survival Horror 12.2%, Psychological Horror 11.7%, Horror 9.2%

  43. #43 Forsake: Urban horror
    73% matchVery Positive80% of 222 reviews2023
    Dev: Unseen Interactive
    Windows
    Median: 3.5 hrsMean: 23.5 hrs≥1hr: 88%

    Forsake is a 1 to 4 player co-op online survival horror game where each player is a member of an urban explorer group. Choose your equipment to explore places full of paranormal and exorcise them, if you think you can handle it!

    Why similar: Survival Horror 15.5%, Online Co-Op 15%, Horror 10.5%, Psychological Horror 10.1%, Co-op 9.1%

  44. #44 Escape: School
    71% matchNo user reviews
    Dev: Civetta Works
    Windows

    Escape: School is a 1~6 co-op multiplayer horror game set inside a school where an incident is happening. Cooperate with your friends, find the name of the student who has died and grieve to escape from this school!

    Why similar: Online Co-Op 17.4%, Psychological Horror 13.1%, Investigation 13%, Horror 11.8%, Co-op 11.7%

  45. #45 Changgwi
    70% matchMostly Positive76% of 88 reviews2025
    Dev: Mandam
    Windows

    First-perspective Co-op horror game (up to 4 online players). A terrible incident has struck a Joseon-era village. Become an investigator and survive the cursed night.

    Why similar: Survival Horror 18.6%, Horror 16.9%, Psychological Horror 13.4%, Online Co-Op 12.9%, Multiplayer 10.9%

  46. #46 Out of the Fog
    71% matchNo user reviews
    Dev: MediaTale
    Windows

    What begins as a myth-busting adventure quickly turns into a terrifying fight for survival when the mysterious faceless creature reveals himself to be real. Explore, survive and uncover the truth in this 1-2 player co-op horror experience.

    Why similar: Survival Horror 16.8%, Nonlinear 12.8%, Psychological Horror 12.7%, Co-op 12%, Horror 11.2%

  47. #47 Backrooms Rec.
    70% matchMixed70% of 1,667 reviews2024
    Dev: Liminal Logic
    Windows
    Median: 2.5 hrsMean: 3.8 hrs≥1hr: 78%

    Dive into the mysteries of the Backrooms with a solo-developed survival game. Explore eerie hallways, uncover secrets alone or in multiplayer (up to 6 players), and take on unique challenges.

    Why similar: Online Co-Op 16.8%, Survival Horror 15.5%, Nonlinear 11.1%, Horror 9.9%, Psychological Horror 9%

  48. #48 Escape First
    74% matchMixed66% of 441 reviews2018
    Dev: OnSkull Games
    Windows
    Median: 2.0 hrsMean: 2.4 hrs≥1hr: 81%

    "Escape First" is a multiplayer escape room puzzle game for virtual reality or desktop PC! It includes 3 different escape rooms to choose from and can be played competitively, co-op or solo.

    Why similar: Online Co-Op 13.4%, Investigation 12.6%, Co-op 11.8%, Horror 9.6%, Psychological Horror 7.9%

  49. #49 Redast
    70% matchNo user reviews
    Dev: Revold Interactive
    Windows

    Redast: Define the first-person co-op Horror-Observation genre. Observe 50 unique entities in the world's most unsettling corners and identify the unknown. An experience unlike any other, a hunt like no other. Darkness awaits.

    Why similar: Investigation 15.9%, Online Co-Op 15.4%, Psychological Horror 11.4%, Horror 10.9%, Co-op 10.4%

  50. #50 Ectoplasm
    69% matchNo user reviews
    Dev: Scar
    Windows

    Step into the chilling world of paranormal investigation. Gather crucial information from a haunted location using specialized equipment, all while staying one step ahead of the ghost. Experience the psychological horror alone or in a team of up to 4 players.

    Why similar: Investigation 15.3%, Online Co-Op 15.1%, Psychological Horror 11%, Horror 10.5%, Co-op 9.7%

  51. #51 Backrooms Together
    69% matchNo user reviews
    Dev: Podarge VisionsPub: Podarge Publishing
    Windows

    Embark on a chilling journey into the unknown with the game "Level Unknown: Backrooms," a horror-puzzle set in the mysterious realm of the Backrooms. Test your logical skills and nerves in both a single-player adventure or a multiplayer cooperative mode.

    Why similar: Online Co-Op 18.8%, Survival Horror 16.1%, Psychological Horror 13.4%, Horror 13.2%, Realistic 9.9%

  52. #52 The Mirror Dimension
    69% matchNo user reviews2026
    Dev: Mindeck Games
    Windows

    The Mirror Dimension is a co-op psychological thriller and horror game for 1 to 4 players. Players investigate paranormal activities, solve mysteries across dimensions, and eliminate spiritual entities to find problems. Are you ready to explore different dimensions?

    Why similar: Online Co-Op 15%, Survival Horror 14.6%, Psychological Horror 12.3%, Investigation 11.2%, Co-op 10.9%

  53. #53 BRAINROT NIGHTMARES
    68% matchNo user reviews
    Dev: Kabir Interactive
    Windows

    Flee Tung Tung Sahur, a bat-wielding Brainrot monster, in a cursed mansion. Hide and survive the meme-charged terror. “Tung Tung, you can’t escape!”

    Why similar: Survival Horror 18.4%, Psychological Horror 15%, Horror 13.8%, Realistic 13.2%, Dark 10.3%

  54. #54 Haunted Mines
    67% match2 user reviews50% of 2 reviews2025
    Dev: Xereon
    Windows

    4-player online co-op horror game set in procedurally generated abandoned mines. Investigate, restore power, and survive as you face a monster with unique forms, using equipment to complete objectives and refine your strategy.

    Why similar: Investigation 15.9%, Survival Horror 15.2%, Psychological Horror 11.7%, Horror 10%, PvE 9.3%

  55. #55 Adrift in the Backrooms
    68% matchMostly Positive71% of 17 reviews2023
    Dev: Not2Bad Studios
    Windows

    Adrift in the Backrooms is an adventure multiplayer game that is a mix of backrooms games and more traditional co-op.

    Why similar: Survival Horror 23.2%, Online Co-Op 16.5%, Investigation 12.4%, Horror 11.7%, Multiplayer 9.3%

  56. #56 Floor 8
    66% matchNo user reviews
    Dev: Horror Ponds
    Windows · Mac · Linux

    Up to 5 player multiplayer and single-player horror game. Be attentive to not overlook any anomalies on floors, use the elevator to reach floor 1 and escape before monsters get you.

    Why similar: Online Co-Op 22.1%, Survival Horror 17.4%, Horror 15.8%, Psychological Horror 15.2%, Co-op 12.2%

  57. #57 Tainted ground
    66% matchNo user reviews
    Dev: DelCerro
    Windows

    A first-person psychological horror game where you wake up in a remote cabin. Survive paranormal events, explore the forest to find sacred tools to defend yourself from the dark secrets hidden within, and escape the cursed woods before they consume you.

    Why similar: Investigation 21.2%, Online Co-Op 17.3%, Psychological Horror 13.3%, Horror 10.3%, Co-op 10.2%

  58. #58 Lost Lullabies: The Orphanage Chronicles
    64% matchMostly Positive71% of 499 reviews2025
    Dev: Pugsy StudiosPub: GameDev.ist
    Windows · Linux
    Median: 1.4 hrsMean: 2.0 hrs≥1hr: 58%

    "Lost Lullabies - The Orphanage Chronicles" is a Co-Op horror game set in 1980, inspired by the real stories of an orphanage ruined by a fire in 1960 Lowell. Playable with 1-4 players, the goal is to identify and expel malevolent spirits alone or with your team.

    Why similar: Investigation 15.7%, Online Co-Op 15.3%, Psychological Horror 11.1%, Horror 10.8%, Co-op 10.2%

  59. #59 Return the Backrooms
    67% matchMixed63% of 139 reviews2022
    Dev: Skmaestro
    Windows

    Return the Backrooms is a Co-op horror game for 1-4 players where you can have a great time with your friends. Think, Explore, Wander, find the key items and try to escape. but be careful because something is lurking in the dark...

    Why similar: Psychological Horror 11.6%, PvE 9.9%, Horror 9.8%, FPS 9.7%, Survival Horror 9.7%

  60. #60 Whisper Protocol
    66% matchNo user reviews
    Dev: BAXON GAMES
    Windows

    Your voice is your weapon. Speak to survive, or stay silent to stay alive. Repay your debt to the Whisper Protocol by finding words to unlock four voice-sealed locks. But monsters are listening, use vocal bonds to fight back, or betray your allies to save yourself.

    Why similar: Investigation 28%, Survival Horror 20.7%, Horror 15.4%, Co-op 14.4%, Multiplayer 9.1%

S.I.N. Unit: Ghost Investigation & Removal cover art

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