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: 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!
- 4
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!
- 5
AsHes
Online Co-op alternative to Backrooms: The Last Observer — playable with friends. Shares Indie and Adventure with Backrooms: The Last Observer.
This horror game inspired by Chinese folklore offers an enthralling journey through the depths of the Underworld. As you delve deeper, you'll unravel hidden secrets veiled in the darkness.
- 6
Zort
Online Co-op alternative to Backrooms: The Last Observer — playable with friends. Shares Indie and Adventure with Backrooms: The Last Observer.
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!
- 7
Eresys
Online Co-op alternative to Backrooms: The Last Observer — playable with friends. Shares Adventure with Backrooms: The Last Observer.
Eresys is a co-op horror game inspired from the works of H.P. Lovecraft. Teamwork is a key as players take on the roles of four cultists and face the terrifying entities together. Dynamic AI mechanics and unique enemies, Eresys promises to deliver a thrilling and spine-chilling gaming experience.
- 8
Prehistoric Hunt
Online Co-op alternative to Backrooms: The Last Observer — playable with friends. Shares Indie and Adventure with Backrooms: The Last Observer.
Dive into intense dinosaur hunting adventures with your friends. Complete hunting contracts for Preton Corporation. Gather rewards, improve your equipment and become a master hunter. Are you the hunter or the hunted?