IMHO.

Single-player games like A.A.U. Black Site

Below are 8 single-player Steam games similar to A.A.U. Black Site, 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 A.A.U. Black Site page.

Ranked picks

  1. 1
    Lost Life : Origins — Steam game cover

    Lost Life : Origins

    Single-player alternative to A.A.U. Black Site — playable solo, no multiplayer required. Shares Action and Indie with A.A.U. Black Site.

    "Lost Life : Origins" is a first-person survival horror experience that blends psychological tension, environmental storytelling, and strategic combat. Your journey is not about brute force, but perception, adaptation, and uncovering the truth buried beneath layers of reality.

    2023ActionIndieAdventure14.99 USDSingle-playerSimilar games →
  2. 2
    Absolute Fear -AOONI- / 最恐 -青鬼- — Steam game cover

    Absolute Fear -AOONI- / 最恐 -青鬼-

    Single-player alternative to A.A.U. Black Site — playable solo, no multiplayer required. Shares Action and Indie with A.A.U. Black Site.

    20 years after the birth of the legendary horror game "AOONI"... A completely new first-person, 3D horror stealth action "Absolute Fear -AOONI-" is now available! Players take on the role of a younger sister searching for her older sister in a mysterious mansion where AOONI roam.

    2024ActionIndieAdventure9.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Total Chaos — Steam game cover

    Total Chaos

    Single-player alternative to A.A.U. Black Site — playable solo, no multiplayer required. Shares Action and Indie with A.A.U. Black Site.

    Fort Oasis is no paradise—it's a decaying nightmare where reality crumbles. The creator of Turbo Overkill unleashes survival-horror stacked with mysteries and monstrosities. Scavenge to craft weapons, while a voice on your walkie-talkie guides you into the island's depths.

    2025ActionIndieAdventure24.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Apartment No 129 — Steam game cover

    Apartment No 129

    Single-player alternative to A.A.U. Black Site — playable solo, no multiplayer required. Shares Action and Indie with A.A.U. Black Site.

    Emir, who has an interest in mysterious events, steps alone into the abandoned apartment known as "Apartment No 129" to trace the trail of a paranormal event that occurred in 2009 and shook the country. However, he will find himself in an unexpected confrontation within this horror apartment.

    2024ActionIndieAdventure7.99 USDSingle-playerSimilar games →
  5. 5
    The Escape: Together — Steam game cover

    The Escape: Together

    Single-player alternative to A.A.U. Black Site — playable solo, no multiplayer required. Shares Action and Indie with A.A.U. Black Site.

    The Escape: Together is a 1-3 player Online CO-OP escape horror. The paranormal creature has taken over the house. You must use everything you find to survive and make your runaway.

    2023ActionIndieEarly Access3.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Bughouse — Steam game cover

    Bughouse

    Single-player alternative to A.A.U. Black Site — playable solo, no multiplayer required. Shares Action and Indie with A.A.U. Black Site.

    Play as Christopher, a kid left home alone with a terrifying STALKER on the loose! Try and survive in this 80's, PS1 inspired, Home Invasion Survival Horror game - OR DIE TRYING!

    2022ActionIndieAdventure1.99 USDSingle-playerSimilar games →
  7. 7
    The Other Side — Steam game cover

    The Other Side

    Single-player alternative to A.A.U. Black Site — playable solo, no multiplayer required. Shares Action and Indie with A.A.U. Black Site.

    The Other Side is a co-op psychological thriller for up to 6 players. Your goal is to investigate haunted locations using modern ghost hunting equipment, gather evidence, identify entities, and cleanse them from the location. Customize your character, headquarters, and more.

    2025ActionStrategyIndie13.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    VLADiK BRUTAL — Steam game cover

    VLADiK BRUTAL

    Single-player alternative to A.A.U. Black Site — playable solo, no multiplayer required. Shares Action and Indie with A.A.U. Black Site.

    Fight under the onslaught of mutated monsters, obsessed soldiers and even darker bosses. Just try to survive and find out what to do next in this life, simultaneously tearing your enemies to pieces.

    2024ActionIndieAdventure11.99 USDSingle-playerSimilar games →