IMHO.

Single-player games like I_Darkness

Below are 9 single-player Steam games similar to I_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 I_Darkness page.

Ranked picks

  1. 1
    Lost Traces: Genesis — Steam game cover

    Lost Traces: Genesis

    Single-player alternative to I_Darkness — playable solo, no multiplayer required. Shares Indie and Casual with I_Darkness.

    Uncover the terrifying truth behind the Blackwood conspiracy in this first-person psychological horror. Use emerging psychic powers to solve deep, environmental puzzles and survive the secrets of Project GENESIS.

    IndieAdventureCasualSingle-playerSimilar games →
  2. 2
    The Puzzler — Steam game cover

    The Puzzler

    Single-player alternative to I_Darkness — playable solo, no multiplayer required. Shares Indie and Casual with I_Darkness.

    The Puzzler is a first-person escape room style puzzle game where you must solve challenging puzzles using a unique spell-casting system.

    2025IndieCasual2.99 USDSingle-playerSimilar games →
  3. 3
    TOX-17 — Steam game cover

    TOX-17

    Single-player alternative to I_Darkness — playable solo, no multiplayer required.

    Analyze real video footage to solve a poisoning case. Discover the country, city, neighborhood and final location. Every detail may be a clue.

    2027AdventureSingle-playerSimilar games →
  4. 4
    The Anomaly Experiment — Steam game cover

    The Anomaly Experiment

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

    Sentenced to life in prison, you’re offered freedom by joining a trial for a new drug. The experiment is simple: enter the room, observe, and identify what has changed. Complete all tasks, and your sentence is commuted. But, the further you go, the more unsettling your reality becomes.

    2025IndieAdventure3.49 USDSingle-playerSimilar games →
  5. 5
    Two Hour Escape Mystery: A Puzzling Voyage — Steam game cover

    Two Hour Escape Mystery: A Puzzling Voyage

    Single-player alternative to I_Darkness — playable solo, no multiplayer required. Shares Indie and Casual with I_Darkness.

    You're trapped on a strange ship! To escape, you must solve puzzles, explore unique rooms, meet a couple interesting characters, and uncover a mystery to figure out why you're here. Who knows, you may even stop something bad from happening along the way… Bon voyage!

    2023IndieAdventureCasual4.99 USDSingle-playerSimilar games →
  6. 6
    Ocularis — Steam game cover

    Ocularis

    Single-player alternative to I_Darkness — playable solo, no multiplayer required. Shares Indie and Casual with I_Darkness.

    An ancient intelligence can no longer learn so it made you. Enter a sequence of abstract chambers, decipher an unfamiliar visual language, and solve the puzzles it created. As you learn through its carefully constructed experiences, it studies how you learn...and begins to understand again.

    2027IndieCasualSingle-playerSimilar games →
  7. 7
    Beyond The Evil — Steam game cover

    Beyond The Evil

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

    Beyond the Evil is an psychological horror game that places the player to a hard experience to find who created one supposed plague that might doom the world.

    2023ActionIndieAdventure12.99 USDSingle-playerSimilar games →
  8. 8
    Escape First 2 — Steam game cover

    Escape First 2

    Single-player alternative to I_Darkness — playable solo, no multiplayer required. Shares Indie and Casual with I_Darkness.

    "Escape First 2" is the second installment of 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.

    2019IndieAdventureCasual5.99 USDSingle-playerSimilar games →
  9. 9
    Project Unirah — Steam game cover

    Project Unirah

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

    Project Unirah is a third person shooter created by a single developer using Unreal Engine 4. Fight your way through a factory setting, learn what happened and uncover the reason for your existence.

    2021ActionIndieAdventure8.99 USDSingle-playerSimilar games →