IMHO.

Single-player games like Kumitantei: Old-School Slaughter

Below are 10 single-player Steam games similar to Kumitantei: Old-School Slaughter, 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 Kumitantei: Old-School Slaughter page.

Ranked picks

  1. 1
    追光探偵物語 FOLLOWSPOT — A Detective Story — Steam game cover

    追光探偵物語 FOLLOWSPOT — A Detective Story

    Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Adventure with Kumitantei: Old-School Slaughter.

    A stray flyer, a run-down detective agency, a boss who vanishes on day one. In early-2000s Japan, untangle small cases and the reasons behind them — a retro-PC "line & paint" mystery.

    2027AdventureSingle-playerSimilar games →
  2. 2
    Future Racer 2000 — Steam game cover

    Future Racer 2000

    Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Indie and Adventure with Kumitantei: Old-School Slaughter.

    Only You Can Be The Future Racer 2000

    2023IndieAdventure4.99 USDSingle-playerSimilar games →
  3. 3
    WITCHHUNTER.exe — Steam game cover

    WITCHHUNTER.exe

    Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Adventure and RPG with Kumitantei: Old-School Slaughter.

    Witches hide amongst the townsfolk and the Devil whispers through your screen. Explore branching paths as you investigate, interrogate, and condemn the guilty. Be warned: the inquisition is not without its horrors.

    AdventureSimulationRPGSingle-playerSimilar games →
  4. 4
    Danganronpa V3: Killing Harmony — Steam game cover

    Danganronpa V3: Killing Harmony

    Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Adventure with Kumitantei: Old-School Slaughter.

    A new cast of 16 characters find themselves kidnapped and imprisoned in a school. Inside, some will kill, some will die, and some will be punished. Reimagine what you thought high-stakes, fast-paced investigation was as you investigate twisted murder cases and condemn your new friends to death.

    2017Adventure11.99 USDSingle-playerSimilar games →
  5. 5
    Danganronpa: Trigger Happy Havoc — Steam game cover

    Danganronpa: Trigger Happy Havoc

    Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Adventure with Kumitantei: Old-School Slaughter.

    Investigate murders, search for clues and talk to your classmates to prepare for trial. There, you'll engage in deadly wordplay, going back and forth with suspects. Dissect their statements and fire their words back at them to expose their lies! There's only one way to survive—pull the trigger.

    2016Adventure9.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Not Another Weekend — Steam game cover

    Not Another Weekend

    Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Indie and Adventure with Kumitantei: Old-School Slaughter.

    A hilariously madcap point-and-click adventure as a determined bellboy tasked with clearing out a bustling hotel in just one wild weekend! Can he manage the chaos and evict all the guests? The clock is ticking!

    2021IndieAdventure9.99 USDSingle-playerSimilar games →
  7. 7
    Kanna Maze — Steam game cover

    Kanna Maze

    Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Adventure and RPG with Kumitantei: Old-School Slaughter.

    In an isolated lab beneath the earth, a childhood friend is resurrected. Amidst sealed walls, a spree of killings unfolds. In a godless abyss, parallel worlds entwine like a maze. Where does one find the path to the sole universe of bliss?

    2024AdventureRPG3.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Methods: The Detective Competition — Steam game cover

    Methods: The Detective Competition

    Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Indie with Kumitantei: Old-School Slaughter.

    One hundred detectives compete against each other in a crime-solving competition.

    2020StrategyIndieCasual19.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Everreach: Project Eden — Steam game cover

    Everreach: Project Eden

    Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Indie and RPG with Kumitantei: Old-School Slaughter.

    Take on the role of Nora Harwood, member of Everreach’s Security Division, on a mission to secure the colonization process of Eden and investigate mysterious incidents! Everreach: Project Eden is a fast-paced, story-driven action-RPG set on the visually stunning Planet Eden.

    2019ActionIndieRPG24.99 USDDeck VerifiedSingle-playerSimilar games →
  10. 10
    Danganronpa 2x2 — Steam game cover

    Danganronpa 2x2

    Single-player alternative to Kumitantei: Old-School Slaughter — playable solo, no multiplayer required. Shares Adventure with Kumitantei: Old-School Slaughter.

    While on a school trip to Jabberwock Island, students are ensnared in Monokuma’s deadly game, forced into mutual killing and Class Trials to expose the culprit. Break through contradictions with high-speed detective action. Includes both a brand-new scenario and the enhanced original!

    2027AdventureSingle-playerSimilar games →