IMHO.

Single-player games like Nightmare Inside

Below are 8 single-player Steam games similar to Nightmare 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 Nightmare Inside page.

Ranked picks

  1. 1
    Bad Faith — Steam game cover

    Bad Faith

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

    Sanctuaries. Secrets. Serious consequences. A solo-developed psychological horror/drama visual novel.

    2022IndieCasual9.99 USDSingle-playerSimilar games →
  2. 2
    Pikabuu: STOP! — Steam game cover

    Pikabuu: STOP!

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

    Beni, a loving husband to Nadia and father to Kaila, always ensured his family's needs were met with simple contentment. However, one day, an unwitting decision dragged his small family into a spiral that threatens everything.

    2025IndieAdventureSimulation0.99 USDSingle-playerSimilar games →
  3. 3
    骸心 Mainbody — Steam game cover

    骸心 Mainbody

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

    A puzzle-based horror game where the player takes on the role of a building manager who manages a haunted building and its "patients". Through the player's different options will raise or lower the pollution value, thus triggering different endings.

    2022IndieAdventure0.99 USDSingle-playerSimilar games →
  4. 4
    What Happened to Lily? — Steam game cover

    What Happened to Lily?

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

    What Happened to Lily? Is a real-time first-person horror game. Discover the secrets and spooky truths behind the mysterious event at Miller Farm.

    2025IndieAdventureCasual3.99 USDSingle-playerSimilar games →
  5. 5
    Pumpkin Eater — Steam game cover

    Pumpkin Eater

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

    Pumpkin Eater is a visual novel about grief, pumpkin heads, and human decomposition. 100% medically accurate.

    2021IndieCasual1.99 USDSingle-playerSimilar games →
  6. 6
    The Sin — Steam game cover

    The Sin

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

    The depressing pictures of a dying village and its inhabitants to the dark ambient music of the underground performers make those who are still trying to survive in places where everything has long died, to plunge even deeper into the world of mystical horror and deep despair

    2021IndieAdventureCasual4.99 USDSingle-playerSimilar games →
  7. 7
    Amelie — Steam game cover

    Amelie

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

    A psychological mystery yuri visual novel about a girl named Amelie. Forbidden from leaving the house, Amelie awaits the arrival of her long time penpal, Sofia, to her dear friend Lilika’s dismay. What secrets will Sofia unravel that were best kept buried?

    2021IndieSimulation3.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Yet Another Killing Game — Steam game cover

    Yet Another Killing Game

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

    You wake up in a house, alone with two beautiful girls... But no one is allowed to leave until one of you DIES. Why is this happening? What is the purpose of this “killing game”? But most importantly...WHO SHOULD DIE?!

    2025IndieAdventure16.99 USDDeck PlayableSingle-playerSimilar games →