IMHO.

Single-player games like Inner Darkness

Below are 10 single-player Steam games similar to Inner Darkness, 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 Inner Darkness page.

Ranked picks

  1. 1
    Most Quietly — Steam game cover

    Most Quietly

    Single-player alternative to Inner Darkness — playable solo, no multiplayer required. Shares Indie and Adventure with Inner Darkness.

     The game, that supposed to be an ordinary, but developer accidentally made a fatal error, that completely brokes the game, and transforms it into a horror-game. Now, your goal is to somehow, fix the fatal error.

    2025IndieAdventureRPG0.99 USDSingle-playerSimilar games →
  2. 2
    Mine of my Mind — Steam game cover

    Mine of my Mind

    Single-player alternative to Inner Darkness — playable solo, no multiplayer required. Shares Indie and Adventure with Inner Darkness.

    This is a horror where you play as a miner experiencing a midlife crisis. The final shift before a long-awaited promotion goes wrong: reality begins to warp, turning a workday into a nightmare. Will he be able to escape the depths of his own mind?

    2026ActionIndieAdventure2.79 USDSingle-playerSimilar games →
  3. 3
    Ghost Frequency — Steam game cover

    Ghost Frequency

    Single-player alternative to Inner Darkness — playable solo, no multiplayer required. Shares Adventure with Inner Darkness.

    In Ghost Frequency, you are a ghost hunter from PIT - Paranormal Investigation Team. Your mission is to locate a sinister spirit using the EMF Ghost Detector to track paranormal activity, the IR Thermal Camera to reveal hidden entities, and the EVP Digital Recorder to capture eerie voices.

    2025ActionAdventure4.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    True Fear: Forsaken Souls Part 3 — Steam game cover

    True Fear: Forsaken Souls Part 3

    Single-player alternative to Inner Darkness — playable solo, no multiplayer required. Shares Adventure with Inner Darkness.

    True Fear: Forsaken Souls Part 3 is the final chapter of the psychological thriller trilogy. With point-and-click mechanics, intricate puzzles, and cinematic cutscenes, immerse yourself in a dark horror experience that redefines the genre.

    2025AdventureCasual9.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    REVEIL — Steam game cover

    REVEIL

    Single-player alternative to Inner Darkness — playable solo, no multiplayer required. Shares Indie and Adventure with Inner Darkness.

    REVEIL is a narrative first-person psycho-thriller game that focuses on story, puzzles and exploration. Find out what’s going on inside Walter Thompson and what his dark past at the Nelson Bros Circus has to do with it.

    2024IndieAdventure19.99 USDDeck VerifiedSingle-playerSimilar games →
  6. 6
    The Dream Machine: Chapter 1 & 2 — Steam game cover

    The Dream Machine: Chapter 1 & 2

    Single-player alternative to Inner Darkness — playable solo, no multiplayer required. Shares Indie and Adventure with Inner Darkness.

    The Dream Machine is an award-winning point & click adventure game about exploring other people's dreams. It's built by hand using materials such as clay, cardboard and broccoli.

    2012IndieAdventureCasual3.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Fibrillation HD — Steam game cover

    Fibrillation HD

    Single-player alternative to Inner Darkness — playable solo, no multiplayer required. Shares Indie and Adventure with Inner Darkness.

    Immerse yourself in an adaptation of an old story about Ewan Berrington.

    2017IndieAdventure4.99 USDSingle-playerSimilar games →
  8. 8
    True Fear: Forsaken Souls Part 1 — Steam game cover

    True Fear: Forsaken Souls Part 1

    Single-player alternative to Inner Darkness — playable solo, no multiplayer required. Shares Adventure with Inner Darkness.

    True Fear: Forsaken Souls takes the best of the psychological thriller, blending in fun and intuitive gameplay mechanics. Episode 1, the first in a trilogy, will long be remembered.

    2016AdventureCasual8.99 USDDeck VerifiedSingle-playerSimilar games →
  9. 9
    Project Liminal Redux — Steam game cover

    Project Liminal Redux

    Single-player alternative to Inner Darkness — playable solo, no multiplayer required. Shares Indie and Adventure with Inner Darkness.

    Project Liminal Redux is a first-person horror made in realistic 3D graphics. The gameplay consists of collecting notes, solving riddles and escaping from various entities. The main goal is to survive and escape.

    2023IndieAdventure0.99 USDSingle-playerSimilar games →
  10. 10
    Project Liminal 2 — Steam game cover

    Project Liminal 2

    Single-player alternative to Inner Darkness — playable solo, no multiplayer required. Shares Indie and Adventure with Inner Darkness.

    Explore terrifying liminal spaces. Horror walking simulator with reality-bending platforming and supernatural threats. Get lost between dimensions.

    2026ActionIndieAdventure1.50 USDSingle-playerSimilar games →