Co-op games like Backrooms Protocol
Below are 8 cooperative Steam games similar to Backrooms Protocol, 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 Protocol page.
Ranked picks
- 1
Haze Together
Online Co-op alternative to Backrooms Protocol — playable with friends. Shares Indie and Adventure with Backrooms Protocol.
HAZE TOGETHER is a 1-4 player psychological survival horror game set in claustrophobic mines. Team up with friends, explore dangerous industrial facilities, and escape the darkness trying to consume you. Remember: the haze thickens every second, and you are not alone.
- 2
Tutsak
Online Co-op alternative to Backrooms Protocol — playable with friends. Shares Indie and Adventure with Backrooms Protocol.
Explore abandoned locations with 1–4 players. The creature hunts, captures, and imprisons you — your teammates must find you before it's too late. Can you escape together?
- 3
Whisper Of The Curse
Online Co-op alternative to Backrooms Protocol — playable with friends. Shares Indie with Backrooms Protocol.
"Whisper of the Curse" is a 4-player online co-op psychological horror game where you and your team will perform various rituals and spells to eliminate the curse and fend off cursed entities. At the same time, you'll need to avoid being hunted by these malevolent entities.
- 4
Submerge
Online Co-op alternative to Backrooms Protocol — playable with friends. Shares Indie and Adventure with Backrooms Protocol.
A deep-sea exploration company sends you and your friends to investigate a research facility that has mysteriously gone silent. Face terrifying events together, survive as a team, and uncover the truth hidden within the depths.
- 5
Summon: Joint escape
Online Co-op alternative to Backrooms Protocol — playable with friends. Shares Indie and Adventure with Backrooms Protocol.
Summon: Joint Escape is a cooperative horror survival game for 1-4 players. Find a way to escape from a stalker in camouflage uniform who wants to give you a piece of paper with the inscription "Summon".
- 6
PARANOIA PLACE
Online Co-op alternative to Backrooms Protocol — playable with friends. Shares Indie and Adventure with Backrooms Protocol.
PARANOIA PLACE is a 1-4 player online co-op survival horror game. Together or alone, you will need to solve puzzles, find items and run from the bloodthirsty demonic killer.
- 7
Escape From Monster
Online Co-op alternative to Backrooms Protocol — playable with friends. Shares Indie and Adventure with Backrooms Protocol.
You woke up in a dusty room, in an unknown place, with no memory of how you got here. Your pockets are empty, and there is something outside the door producing frightening sounds.
- 8
Agonize
Online Co-op alternative to Backrooms Protocol — playable with friends. Shares Indie and Adventure with Backrooms Protocol.
Once a mad scientist's lab, now an abandoned manor haunted by miscreations. Work as a 1-4 player team in this online co-op, psychological horror game and discover what lurks within. Find a cure before it's too late...