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

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
- 2

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.
- 3

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.
- 4

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!
- 5

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!
- 6

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.
- 7

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.
- 8

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!