IMHO.

Co-op games like Treasure Hunters

Below are 8 cooperative Steam games similar to Treasure Hunters, 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 Treasure Hunters page.

Ranked picks

  1. 1
    Treasure Hunters: Prologue — Steam game cover

    Treasure Hunters: Prologue

    Online Co-op alternative to Treasure Hunters — playable with friends. Shares Action and Indie with Treasure Hunters.

    Treasure Hunters: Prologue is a free version of 'Treasure Hunters', an intense, co-op treasure-hunting game set in mysterious dungeons filled with puzzles, platforms, and deadly creatures, where your goal is to find and steal the most valuable treasures

    2025ActionIndieAdventureFreeCo-opSimilar games →
  2. 2
    DEATH FROM BELOW — Steam game cover

    DEATH FROM BELOW

    Online Co-op alternative to Treasure Hunters — playable with friends. Shares Action and Adventure with Treasure Hunters.

    DEATH FROM BELOW is a 1-4 player co-op horror game where you and your crew hunt for sunken relics on a steam-powered trawler: navigate cursed waters, operate your ship's steam-driven machinery, and sharpen your harpoon. Beware of the eldritch creatures guarding their treasures beneath the surface.

    ActionAdventureSimulationCo-opSimilar games →
  3. 3
    Backrooms: The Last Observer — Steam game cover

    Backrooms: The Last Observer

    Online Co-op alternative to Treasure Hunters — playable with friends. Shares Indie and Adventure with Treasure Hunters.

    Backrooms: The Last Observer is a cooperative horror game. Descend into something that resists understanding, where perception itself begins to fracture. You are here not to fight, but to witness — and sometimes, witnessing is the worst thing you can do.

    2026IndieAdventureSimulation1.19 USDCo-opSimilar games →
  4. 4
    Backrooms: The Others — Steam game cover

    Backrooms: The Others

    Online Co-op alternative to Treasure Hunters — playable with friends. Shares Indie and Adventure with Treasure Hunters.

    Backrooms: The Others is a cooperative horror game for up to 4 players where you will be forced to explore these unknown nooks and crannies, trying to survive in this complex world where death can be waiting for you at every turn!

    2025IndieAdventureSimulation2.99 USDCo-opSimilar games →
  5. 5
    Backrooms: The Deep Dark — Steam game cover

    Backrooms: The Deep Dark

    Online Co-op alternative to Treasure Hunters — playable with friends. Shares Indie and Adventure with Treasure Hunters.

    Backrooms: The Deep Dark is a 4-player cooperative horror game where you will survive in a mysterious scary atmospheric world, wander through unknown dark corners and get scared of every nook and cranny!

    2025IndieAdventureSimulation2.99 USDCo-opSimilar games →
  6. 6
    PROJECTA — Steam game cover

    PROJECTA

    Online Co-op alternative to Treasure Hunters — playable with friends. Shares Action and Indie with Treasure Hunters.

    PROJECTA is a reality-shifting co-op adventure where you and your variant solve puzzles, manipulate time, and survive in a fractured multiverse full of mind-bending challenges.

    ActionIndieAdventureCo-opSimilar games →
  7. 7
    The 4 Masked — Steam game cover

    The 4 Masked

    Online Co-op alternative to Treasure Hunters — playable with friends. Shares Action and Indie with Treasure Hunters.

    A 4-player co-op FPS adventure where you swing through trees using vines, escape wild animals, and survive dangerous biomes. Each player has a unique role, and teamwork is the key to survival.

    2026ActionIndieAdventureCo-opSimilar games →
  8. 8
    Zort — Steam game cover

    Zort

    Online Co-op alternative to Treasure Hunters — playable with friends. Shares Action and Indie with Treasure Hunters.

    Zort is an action, adventure, and horror game that can be played with up to 4 people. Explore maps with your friends and have fun while escaping from various creatures. Experience a realistic horror experience with in-game voice chat with your friends!

    2024ActionIndieAdventure4.00 USDCo-opSimilar games →