IMHO.

Single-player games like ニコニコさん | Niconico-san

Below are 8 single-player Steam games similar to ニコニコさん | Niconico-san, 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 ニコニコさん | Niconico-san page.

Ranked picks

  1. 1
    Libera Nos a Malo — Steam game cover

    Libera Nos a Malo

    Single-player alternative to ニコニコさん | Niconico-san — playable solo, no multiplayer required. Shares Action and Indie with ニコニコさん | Niconico-san.

    This is a QTE horror game inspired by 1970s horror movies. This game contains scenes of exorcism and demonic possession, Christian religious themes, disturbing imagery, screams, and moments of intense psychological tension. Some content may be unsettling for certain players. 

    2026ActionIndieAdventureSingle-playerSimilar games →
  2. 2
    6年1組 — Steam game cover

    6年1組

    Single-player alternative to ニコニコさん | Niconico-san — playable solo, no multiplayer required. Shares Action and Indie with ニコニコさん | Niconico-san.

    I went to school that night to pick up something I forgot... Aim for class 1 of 6th grade, and if there are no abnormalities, go up the stairs, and if there are any abnormalities, go down the stairs.

    2024ActionStrategyIndie1.99 USDSingle-playerSimilar games →
  3. 3
    Insomnia — Steam game cover

    Insomnia

    Single-player alternative to ニコニコさん | Niconico-san — playable solo, no multiplayer required. Shares Indie and Adventure with ニコニコさん | Niconico-san.

    Experience one night as a man diagnosed with a strange and incurable form of insomnia. Your only goal is to sleep until dawn, but after the lines between your nightmares and your waking life are blurred… you might not want to sleep afterall.

    2022IndieAdventureCasual6.99 USDSingle-playerSimilar games →
  4. 4
    System Malfunction — Steam game cover

    System Malfunction

    Single-player alternative to ニコニコさん | Niconico-san — playable solo, no multiplayer required. Shares Indie and Adventure with ニコニコさん | Niconico-san.

    "System Malfunction" is a first-person horror game set in a mysterious building. The player takes on the role of a security guard who witnesses strange occurrences during the night shift. In a fear-inducing environment, the player explores the building to uncover hidden truths.

    2024IndieAdventureSimulation3.99 USDSingle-playerSimilar games →
  5. 5
    In Banjiha — Steam game cover

    In Banjiha

    Single-player alternative to ニコニコさん | Niconico-san — playable solo, no multiplayer required. Shares Indie and Adventure with ニコニコさん | Niconico-san.

    It is a first-person horror game. Escape the damp, dark semi-basement. Overcome your fear and find a way out.

    2026IndieAdventureSimulationSingle-playerSimilar games →
  6. 6
    The Observation Exit — Steam game cover

    The Observation Exit

    Single-player alternative to ニコニコさん | Niconico-san — playable solo, no multiplayer required. Shares Indie and Adventure with ニコニコさん | Niconico-san.

    A first-person psychological horror where you must identify anomalies, choose the correct elevator to progress, and escape an endless loop in a hospital corridor while avoiding deadly entities.

    2026IndieAdventureSimulationSingle-playerSimilar games →
  7. 7
    Anomalous Veil — Steam game cover

    Anomalous Veil

    Single-player alternative to ニコニコさん | Niconico-san — playable solo, no multiplayer required. Shares Indie and Adventure with ニコニコさん | Niconico-san.

    You are trapped inside an endless house shaped by memory and guilt. Use mysterious masks to reveal hidden layers of reality, identify anomalies and escape a psychological time loop.

    2026IndieAdventureSimulationSingle-playerSimilar games →
  8. 8
    209 — Steam game cover

    209

    Single-player alternative to ニコニコさん | Niconico-san — playable solo, no multiplayer required. Shares Indie with ニコニコさん | Niconico-san.

    You are locked in a quiet apartment room. The only way out of the tightly closed door is to get to the truth of the case. Overcome your fear and try to escape.

    2024Indie4.99 USDSingle-playerSimilar games →