Co-op games like Demonsomnia
Below are 6 cooperative Steam games similar to Demonsomnia, 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 Demonsomnia page.
Ranked picks
- 1
Dark Past
Online Co-op alternative to Demonsomnia — playable with friends. Shares Action and Early Access with Demonsomnia.
Dark Past is based on psychological horror by paranormal activity occurring during your investigations. Play solo or up to 4 players to try and solve the mystery of what entity is left behind.
- 2
We Are Alive
Online Co-op alternative to Demonsomnia — playable with friends.
We Are Alive is a Co-Op horror game, that can be played with at least 1 and up to 4 players. You are a detective and your mission is to investigate the old psychiatric hospital and find out the truth. Your standard equipment is a flashlight and a gun.
- 3
The Backrooms - Nightmare Dimension
Online Co-op alternative to Demonsomnia — playable with friends. Shares Action with Demonsomnia.
The Backrooms - Nightmare Dimension is a Co-op online horror game with up to 4 players, where you and your friends take on the roles of soldiers who are part of the SCP Foundation with the mission to eliminate the mysterious entities found in the infamous place called "the Backrooms".
- 4
Lost Lullabies: The Orphanage Chronicles
Online Co-op alternative to Demonsomnia — playable with friends. Shares Action with Demonsomnia.
"Lost Lullabies - The Orphanage Chronicles" is a Co-Op horror game set in 1980, inspired by the real stories of an orphanage ruined by a fire in 1960 Lowell. Playable with 1-4 players, the goal is to identify and expel malevolent spirits alone or with your team.
- 5
Remnant Records
Online Co-op alternative to Demonsomnia — playable with friends. Shares Action with Demonsomnia.
Remnant Records is a horror investigation game for 1 to 4 players. Explore places haunted by the dead, survive elaborate and unique ghosts and find out what happened to them through thousands of generated stories.
- 6
This is a Ghost
Online Co-op alternative to Demonsomnia — playable with friends.
This is a Ghost is a ghost-hunting psychological horror game. Using your equipment, track down paranormal activity and gather evidence to identify the entity, then banish it from this world! Solo and online co-op play for up to 4 players. 👻