Co-op games like Backrooms: The Last Observer
Below are 8 cooperative Steam games similar to Backrooms: The Last Observer, 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: The Last Observer page.
Ranked picks
- 1
Backrooms: The Silence
Online Co-op alternative to Backrooms: The Last Observer — playable with friends. Shares Indie and Adventure with Backrooms: The Last Observer.
Backrooms: The Silence is a cooperative horror game for 1-4 players, where you have to explore and fight the game master on your own, use your own abilities to survive in this complex world, play with your friends to get the full range of emotions!
- 2
Backrooms: Forgotten Floors
Online Co-op alternative to Backrooms: The Last Observer — playable with friends. Shares Indie and Adventure with Backrooms: The Last Observer.
Backrooms: Forgotten Floors is a cooperative horror game for 1–4 players. Descend into levels no one remembers, through spaces that shouldn't exist. You're here now — and the only thing worse than being lost is being noticed.
- 3
Backrooms: Final Exam
Online Co-op alternative to Backrooms: The Last Observer — playable with friends. Shares Indie and Adventure with Backrooms: The Last Observer.
Backrooms: Final Exam is a cooperative horror game for 1-4 players, Where you will explore this complex and intricate dimension with your friends or alone, trying to figure out what to do, wandering around and being scared by every sound, you will need to pass your final exam!
- 4
Backrooms: The Endless Halls
LAN Co-op alternative to Backrooms: The Last Observer — playable with friends. Shares Indie and Adventure with Backrooms: The Last Observer.
Backrooms: The Endless Halls is a cooperative horror game for 1–4 players. On your own or with friends, you’ll dive into an unknown world where everything will seem familiar to you, yet at the same time frightening and very confusing. Try to make it out alive, if that’s even possible...
- 5
Backrooms: The Deep Dark
Online Co-op alternative to Backrooms: The Last Observer — playable with friends. Shares Indie and Adventure with Backrooms: The Last Observer.
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
Backrooms: The Others
Online Co-op alternative to Backrooms: The Last Observer — playable with friends. Shares Indie and Adventure with Backrooms: The Last Observer.
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!
- 7
Backrooms: Recode
Online Co-op alternative to Backrooms: The Last Observer — playable with friends. Shares Indie and Adventure with Backrooms: The Last Observer.
Backrooms: Recode is a cooperative horror game for 1–4 players. The rules don't stay the same. Neither do the walls, the halls, or your thoughts. If there's a pattern, it's not meant for you to understand.
- 8
Backrooms: The Incident
LAN Co-op alternative to Backrooms: The Last Observer — playable with friends. Shares Indie and Adventure with Backrooms: The Last Observer.
Backrooms: The Incident is a cooperative horror game for 1–4 players. On your own or with friends, you'll explore the game world, trying to figure out what's going on, where you are, how to get out of there, and whether it's even possible.