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Single-player games like The Monster Inside

Below are 9 single-player Steam games similar to The Monster Inside, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like The Monster Inside page.

Ranked picks

  1. 1
    Subsurface Circular — Steam game cover

    Subsurface Circular

    Single-player alternative to The Monster Inside — playable solo, no multiplayer required. Shares Indie with The Monster Inside.

    When the truth is buried, go underground. Step into this new take on text-based adventure from the award-winning team behind Thomas Was Alone and Volume. A short story that hands you the fate of the world above, as a detective looking for answers on the Subsurface Circular.

    2017IndieAdventureCasual5.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    The Last Case of John Morley — Steam game cover

    The Last Case of John Morley

    Single-player alternative to The Monster Inside — playable solo, no multiplayer required. Shares Indie with The Monster Inside.

    Step into the mind of John Morley, a 1940s detective on his final case. Explore shadowed places long forgotten by time, and piece together crime scenes in a narrative adventure steeped in mystery, unexpected twists, and a truth buried for decades.

    2025IndieAdventure12.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    The Infectious Madness of Doctor Dekker — Steam game cover

    The Infectious Madness of Doctor Dekker

    Single-player alternative to The Monster Inside — playable solo, no multiplayer required. Shares Indie with The Monster Inside.

    YOU are a psychiatrist, trying to solve a murder whilst treating the unusual patients of the recently deceased Doctor Dekker. Type a question - patients reply in full screen video and have questions for you too but be careful what you say. Your words determine their eventual fates, and your own!

    2017IndieAdventureSimulation8.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    The Detail — Steam game cover

    The Detail

    Single-player alternative to The Monster Inside — playable solo, no multiplayer required. Shares Indie with The Monster Inside.

    The Detail, a crime noir adventure in a modern American city. This is a city where cases matter, clearance rates matter, and on a good day even justice matters.

    2014IndieAdventure2.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Chicken Police: Into the HIVE! — Steam game cover

    Chicken Police: Into the HIVE!

    Single-player alternative to The Monster Inside — playable solo, no multiplayer required.

    A wild tale of conspiracy, loss, friendship, and... chickens?! Two rooster detectives are about to venture into the insect underworld to uncover a worldwide conspiracy, while also battling their inherent demons in this animal noir adventure satire.

    2024AdventureSimulationCasual19.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Staffer Reborn — Steam game cover

    Staffer Reborn

    Single-player alternative to The Monster Inside — playable solo, no multiplayer required. Shares Indie with The Monster Inside.

    Staffer Reborn is a game of supernatural abilities and logical deduction set in 1960s America. It tells the story of a man trapped in a cycle of death and resurrection caused by his supernatural ability and the investigator who was recruited to help.

    2024IndieAdventureSimulation2.69 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    Murdered: Soul Suspect — Steam game cover

    Murdered: Soul Suspect

    Single-player alternative to The Monster Inside — playable solo, no multiplayer required.

    MURDERED: SOUL SUSPECT™ takes players into a whole new realm of mystery where the case is personal and the clues just out of reach, challenging gamers to solve the hardest case of all… their own murder.

    2014ActionAdventureRPG19.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Kathy Rain 2: Soothsayer — Steam game cover

    Kathy Rain 2: Soothsayer

    Single-player alternative to The Monster Inside — playable solo, no multiplayer required. Shares Indie with The Monster Inside.

    In this point-and-click urban thriller, down-and-out private eye Kathy Rain will embark on her most dangerous case yet — the pursuit of the notorious serial killer known as the Soothsayer. Find clues, gather evidence, connect the dots, and confront the murderer before the hunter becomes the hunted…

    2025IndieAdventure19.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    TIMEframe — Steam game cover

    TIMEframe

    Single-player alternative to The Monster Inside — playable solo, no multiplayer required. Shares Indie with The Monster Inside.

    Time is relative. Sometimes 10 seconds can feel like an eternity... In TIMEframe you will discover a world in slow motion. Explore the remnants of a mysterious civilization on the brink of destruction.

    2015IndieCasual5.99 USDSingle-playerSimilar games →