IMHO.

Co-op games like BACKROOMS: APPREHENSION

Below are 8 cooperative Steam games similar to BACKROOMS: APPREHENSION, ranked by player overlap and content similarity. Every pick supports cooperative play — online co-op, LAN co-op, or shared/split-screen — so you can play with friends right out of the box. imho.run pulls from the same Steam category data Valve uses internally, so "Co-op" here matches what the store labels.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like BACKROOMS: APPREHENSION page.

Ranked picks

  1. 1
    Sincognito — Steam game cover

    Sincognito

    Online Co-op alternative to BACKROOMS: APPREHENSION — playable with friends. Shares Action and Indie with BACKROOMS: APPREHENSION.

    A social deduction investigation horror game where one of you is secretly possessed by a Deadly Sin. Use stealth and proximity chat to cooperate or deceive as you gather clues and compare findings to deduce which Sin is haunting the castle.

    2026ActionStrategyIndieCo-opSimilar games →
  2. 2
    The Wendigo Lives — Steam game cover

    The Wendigo Lives

    Online Co-op alternative to BACKROOMS: APPREHENSION — playable with friends. Shares Action and Indie with BACKROOMS: APPREHENSION.

    Search an abandoned Appalachian forest, complete objectives, and escape before midnight. Survive alone against a deceptive hunter or enter 3–5 player multiplayer, where one of your friends can become the Wendigo and hide among the group.

    2026ActionIndieAdventureCo-opSimilar games →
  3. 3
    PHOBOS — Steam game cover

    PHOBOS

    Online Co-op alternative to BACKROOMS: APPREHENSION — playable with friends. Shares Action and Indie with BACKROOMS: APPREHENSION.

    A 4-8 player social deduction horror game. Solve puzzles that need real teamwork, survive monsters that each hunt differently, and figure out who you can trust before they decide for you.

    2026ActionIndieEarly AccessCo-opSimilar games →
  4. 4
    Deep Dark Space — Steam game cover

    Deep Dark Space

    Online Co-op alternative to BACKROOMS: APPREHENSION — playable with friends. Shares Action and Indie with BACKROOMS: APPREHENSION.

    Deep Dark Space is a 4-player online co-op horror experience set in space. Explore abandoned stations, gather clues, and uncover the monster lurking in the dark. Trust no one — paranoia runs high as hidden betrayals threaten your survival.

    2025ActionIndie9.99 USDCo-opSimilar games →
  5. 5
    MACE: Mapinguari's Temple — Steam game cover

    MACE: Mapinguari's Temple

    Online Co-op alternative to BACKROOMS: APPREHENSION — playable with friends. Shares Action and Indie with BACKROOMS: APPREHENSION.

    MACE: Mapinguari's Temple is a multiplayer, horror game with adventure and social deduction elements. Venture into a maze-like, procedurally generated dungeon filled with puzzles, avoid the terrible creature that roams it's corridors and discover who is the deceitful cultist among you.

    2022ActionIndieAdventure4.99 USDCo-opSimilar games →
  6. 6
    Nifland — Steam game cover

    Nifland

    Online Co-op alternative to BACKROOMS: APPREHENSION — playable with friends. Shares Action and Indie with BACKROOMS: APPREHENSION.

    Nifland is a surreal multiplayer horror game with social deduction, set inside a paranormal dream beneath the ocean. Maintain a decaying deep-sea station, survive the entities roaming its halls, and uncover the traitor hiding among your crew before the dream consumes you all.

    2026ActionIndieAdventureCo-opSimilar games →
  7. 7
    HOLLOWED Co. — Steam game cover

    HOLLOWED Co.

    Online Co-op alternative to BACKROOMS: APPREHENSION — playable with friends. Shares Action and Indie with BACKROOMS: APPREHENSION.

    A chaotic multiplayer horror game where a paranormal recovery crew hunts cursed relics in haunted locations — while monsters hunt them back and corrupted teammates hide among the crew. Work together, uncover the impostors, and survive long enough to escape.

    ActionIndieAdventureCo-opSimilar games →
  8. 8
    Infected: Outpost — Steam game cover

    Infected: Outpost

    Online Co-op alternative to BACKROOMS: APPREHENSION — playable with friends. Shares Action and Indie with BACKROOMS: APPREHENSION.

    SOMEONE IS INFECTED! Gather resources, refuel the generator, and escape the facility before time runs out! But beware; the infected can shapeshift into their victims. Face your friends in a social deduction horror game like no other!

    2023ActionIndieCasual5.99 USDCo-opSimilar games →