IMHO.

Co-op games like Tainted ground

Below are 8 cooperative Steam games similar to Tainted ground, 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 Tainted ground page.

Ranked picks

  1. 1
    Sorry, That Notice Guarantees Nothing — Steam game cover

    Sorry, That Notice Guarantees Nothing

    Online Co-op alternative to Tainted ground — playable with friends. Shares Indie and Adventure with Tainted ground.

    A 2–8 player online rule-deduction horror game. Cooperate, outmaneuver your crew, and uncover real safety rules and escape clues. Survive timed rules and unpredictable environmental threats. Optional Infested Mode gives you another reason to question whom to trust.

    ActionIndieAdventureCo-opSimilar games →
  2. 2
    Cursed Exped — Steam game cover

    Cursed Exped

    Online Co-op alternative to Tainted ground — playable with friends. Shares Indie and Early Access with Tainted ground.

    Your mission is to cleanse a cursed item in a haunted house. Use your tools to locate and investigate items. Create a ritual area to mark your location of interest and bring items with energy there to progress. Be careful though, the unknown is always watching you and waiting around every corner.

    2022IndieSimulationFree To PlayFreeCo-opSimilar games →
  3. 3
    Friki — Steam game cover

    Friki

    Online Co-op alternative to Tainted ground — playable with friends. Shares Indie and Adventure with Tainted ground.

    Friki is an online co-op investigative horror. Solve how these supernatural beings have died, collect evidence to be paid, and survive the dangers that await you.

    2022ActionIndieAdventure9.99 USDCo-opSimilar games →
  4. 4
    Deepscape Inc — Steam game cover

    Deepscape Inc

    Online Co-op alternative to Tainted ground — playable with friends. Shares Indie and Adventure with Tainted ground.

    2 to 4 player co-op horror game. You wake up marked with an ID number you can't see on your own back. Only your fellow inmates can read it. Find each other, share your numbers, reach your validation rooms, and get out before whatever roams the halls finds you first." en francais

    ActionIndieAdventureCo-opSimilar games →
  5. 5
    WE ARE SO DEAD — Steam game cover

    WE ARE SO DEAD

    Online Co-op alternative to Tainted ground — playable with friends. Shares Indie and Adventure with Tainted ground.

    A co-op seance communications game where one of you died first, and only you can see what's killing the others. Your only voice is a Ouija board your friends keep misreading. Guide them down 9 floors of a haunted house and banish the demon before sunrise. 2-6 players. Brain required.

    2026StrategyIndieAdventure4.95 USDDeck PlayableCo-opSimilar games →
  6. 6
    The Last Station - Baku — Steam game cover

    The Last Station - Baku

    Online Co-op alternative to Tainted ground — playable with friends. Shares Indie and Adventure with Tainted ground.

    A first-person psychological survival horror set in the abandoned Baku subway. Explore dark tunnels, solve puzzles, investigate disturbing mysteries, and make emotional choices while trying to survive against terrifying horrors.

    2026ActionIndieAdventureCo-opSimilar games →
  7. 7
    Breach Signal — Steam game cover

    Breach Signal

    Online Co-op alternative to Tainted ground — playable with friends. Shares Indie and Adventure with Tainted ground.

    Breach Signal is a 1-6 player co-op cosmic horror game. As a recruit of the FNA, lead expeditions into strange places and investigate mysterious anomalies that threaten our reality.

    2027ActionIndieAdventureCo-opSimilar games →
  8. 8
    Loch Ness — Steam game cover

    Loch Ness

    Online Co-op alternative to Tainted ground — playable with friends. Shares Indie and Early Access with Tainted ground.

    Loch Ness is a 1-4 Player Co-Op Horror Hunter. You and your team must navigate precarious waters, use your equipment to hunt for Nessie’s feeding ground and lay bait to lure her out. But be careful, for lurking deep beneath the lake is a creature more ancient than all mankind…

    2021IndieEarly Access13.99 USDCo-opSimilar games →