IMHO.

Single-player games like 머준이의 사건파일 ~쌍둥이 저택의 비밀~

Below are 9 single-player Steam games similar to 머준이의 사건파일 ~쌍둥이 저택의 비밀~, 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 머준이의 사건파일 ~쌍둥이 저택의 비밀~ page.

Ranked picks

  1. 1
    Star Apprentice: Dazzling Danmaku Detective — Steam game cover

    Star Apprentice: Dazzling Danmaku Detective

    Single-player alternative to 머준이의 사건파일 ~쌍둥이 저택의 비밀~ — playable solo, no multiplayer required. Shares Action and Indie with 머준이의 사건파일 ~쌍둥이 저택의 비밀~.

    Find evidence, interrogate suspects, and shoot down contradictions in this magical girl detective game! Your magic turns each interrogation into a bullet hell logic battle - use it to prove your skills and uncover the truth of each magical mystery! Will you live up to the ideals of a true detective?

    ActionIndieAdventureSingle-playerSimilar games →
  2. 2
    On Air! Taxi Detective Casebook — Steam game cover

    On Air! Taxi Detective Casebook

    Single-player alternative to 머준이의 사건파일 ~쌍둥이 저택의 비밀~ — playable solo, no multiplayer required. Shares Indie and Adventure with 머준이의 사건파일 ~쌍둥이 저택의 비밀~.

    On Air! Taxi Detective Casebook is a pixel-art, dialogue-driven mystery game. You’re an AI in a taxi, teaming up with a talkative driver on late-night runs to hear bizarre passenger stories, solve cases in secret, and let him play the “great detective.”

    IndieAdventureSingle-playerSimilar games →
  3. 3
    The Darkside Detective: A Fumble in the Dark — Steam game cover

    The Darkside Detective: A Fumble in the Dark

    Single-player alternative to 머준이의 사건파일 ~쌍둥이 저택의 비밀~ — playable solo, no multiplayer required. Shares Indie and Adventure with 머준이의 사건파일 ~쌍둥이 저택의 비밀~.

    Delouse your room with sage and pack up your travel-sized ouija board, it’s time to re-enter Twin Lakes - America’s 34th most haunted city. Join Detective McQueen as he puzzles his way through 9 chilling cases, risking life and pixelated limb to solve the macabre mysteries that plague the poor town.

    2021IndieAdventureCasual14.99 USDDeck VerifiedSingle-playerSimilar games →
  4. 4
    Crime O'Clock — Steam game cover

    Crime O'Clock

    Single-player alternative to 머준이의 사건파일 ~쌍둥이 저택의 비밀~ — playable solo, no multiplayer required. Shares Indie and Adventure with 머준이의 사건파일 ~쌍둥이 저택의 비밀~.

    Crime O'Clock is a hidden objects investigation and time exploration game with a deep storyline. Investigate cases through time and evolving maps by unveiling a multi-eras linked story. Will you be observant enough to solve the mysteries? Crime waits for no man!

    2023IndieAdventureCasual19.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Enigma of Fear — Steam game cover

    Enigma of Fear

    Single-player alternative to 머준이의 사건파일 ~쌍둥이 저택의 비밀~ — playable solo, no multiplayer required. Shares Action and Indie with 머준이의 사건파일 ~쌍둥이 저택의 비밀~.

    Become Mia, a paranormal detective searching for her missing father inside the Perimeter - a place that doesn't exist. Investigate clues like a real detective and unravel the mysteries behind the Enigma of Fear, defeating the terrible monsters who'll try to stop you.

    2024ActionIndieAdventure29.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    迷雾之夏-The Vigilant Villa — Steam game cover

    迷雾之夏-The Vigilant Villa

    Single-player alternative to 머준이의 사건파일 ~쌍둥이 저택의 비밀~ — playable solo, no multiplayer required. Shares Indie and Adventure with 머준이의 사건파일 ~쌍둥이 저택의 비밀~.

    The Vigilant Villa is a plots-oriented, texts-based AVG adventure game inheriting the classic “A locked room mystery" story mode. Where the game heads towards is completely decided by player’s own deductions and choices.

    2020IndieAdventureRPGDeck PlayableSingle-playerSimilar games →
  7. 7
    The Posthumous Investigation — Steam game cover

    The Posthumous Investigation

    Single-player alternative to 머준이의 사건파일 ~쌍둥이 저택의 비밀~ — playable solo, no multiplayer required. Shares Indie and Adventure with 머준이의 사건파일 ~쌍둥이 저택의 비밀~.

    A dead man hired you to solve his own murder. You have one day. Fourteen suspects. And as many attempts as it takes. A hand-drawn noir mystery set in 1937 Rio de Janeiro, where every suspect has a life, a schedule, and something to hide.

    2026IndieAdventureCasual19.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Nine Noir Lives — Steam game cover

    Nine Noir Lives

    Single-player alternative to 머준이의 사건파일 ~쌍둥이 저택의 비밀~ — playable solo, no multiplayer required. Shares Indie and Adventure with 머준이의 사건파일 ~쌍둥이 저택의 비밀~.

    Stretch your legs, clean your whiskers, and dive into Nine Noir Lives. Enjoy a "point-and-lick" comedy-noir adventure, full of humour, crazy characters, and intriguing locations. Solve challenging puzzles and answer the immortal question: how many things need to be licked to solve a murder in this town?

    2022IndieAdventure19.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Mori's Nightmare : Hide and seek — Steam game cover

    Mori's Nightmare : Hide and seek

    Single-player alternative to 머준이의 사건파일 ~쌍둥이 저택의 비밀~ — playable solo, no multiplayer required. Shares Action and Indie with 머준이의 사건파일 ~쌍둥이 저택의 비밀~.

    Become Mori and Avoid the scary nurse! Escape from the hospital!

    2021ActionIndieAdventure0.99 USDSingle-playerSimilar games →