Single-player games like Demonsomnia
Below are 11 single-player Steam games similar to Demonsomnia, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player 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
Single-player alternative to Demonsomnia — playable solo, no multiplayer required. 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
Single-player alternative to Demonsomnia — playable solo, no multiplayer required.
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
Phasmophobia
Single-player alternative to Demonsomnia — playable solo, no multiplayer required. Shares Action and Early Access with Demonsomnia.
Phasmophobia is a 4 player online co-op psychological horror. Paranormal activity is on the rise and it’s up to you and your team to use all the ghost-hunting equipment at your disposal in order to gather as much evidence as you can.
- 4
PNEUMA
Single-player alternative to Demonsomnia — playable solo, no multiplayer required. Shares Action with Demonsomnia.
Pneuma is an online co-op sci-fi paranormal investigation experience for up to 4 players. Operate advanced paranormal tech to investigate, analyze, and outmaneuver deadly entities before you are possessed.
- 5
The Backrooms - Nightmare Dimension
Single-player alternative to Demonsomnia — playable solo, no multiplayer required. 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".
- 6
Gorecam
Single-player alternative to Demonsomnia — playable solo, no multiplayer required. Shares Action with Demonsomnia.
GORECAM is a hardcore co-op horror survival game, designed after found-footage horror films. Play with up to 4 friends and try to escape with your life, and maybe some of your sanity.
- 7
Give Us A Sign
Single-player alternative to Demonsomnia — playable solo, no multiplayer required. Shares Action with Demonsomnia.
Give Us A Sign is a 1-4 player co-op psychological horror simulation. As an investigator, use specialized equipment to detect entities and gather evidence in haunted locations. Every word you speak shapes the haunting around you. Once you ask for a sign, there is no turning back.
- 8
ESCAPE Protocol: Online
Single-player alternative to Demonsomnia — playable solo, no multiplayer required. Shares Action and Early Access with Demonsomnia.
In this co-op horror game, escape an unknown realm where reality is shattered and dimensions collide. Solve puzzles, avoid deadly entities, and uncover the hidden saboteur.
- 9
Outlast
Single-player alternative to Demonsomnia — playable solo, no multiplayer required. Shares Action with Demonsomnia.
Hell is an experiment you can't survive in Outlast, a first-person survival horror game developed by veterans of some of the biggest game franchises in history. As investigative journalist Miles Upshur, explore Mount Massive Asylum and try to survive long enough to discover its terrible secret... if you dare.
- 10
SCP: 5K
Single-player alternative to Demonsomnia — playable solo, no multiplayer required. Shares Action with Demonsomnia.
SCP: 5K is a co-op or singleplayer tactical horror FPS project that puts players in the midst of a conspiracy where the SCP Foundation has turned on humanity. Enjoy Early Access as we continue to work towards a completed full release of the project!
- 11
Metro Exodus
Single-player alternative to Demonsomnia — playable solo, no multiplayer required. Shares Action with Demonsomnia.
Flee the shattered ruins of the Moscow Metro and embark on an epic, continent-spanning journey across the post-apocalyptic Russian wilderness. Explore vast, non-linear levels, lose yourself in an immersive, sandbox survival experience, and follow a thrilling story-line that spans an entire year in the greatest Metro adventure yet.