IMHO.

Games like Demonsomnia

If Demonsomnia is your kind of game, the closest matches are Dark Past, We Are Alive and Phasmophobia — picked from the ranked list below. Reviewers single out its atmospheric, eerie and mysterious. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

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About Demonsomnia: Demonsomnia is a CO-OP multiplayer bodycam horror game focused on the impact of nuclear reactions. Radiation has spread everywhere, so put on your gas mask. Your goal is to activate the nuclear reactor device and escape without being caught by mutants.

2024ActionEarly Access13.99 USDDeck PlayableWindowsby Serhat Akgul
Demonsomnia — Steam game cover
Players highlight
Co op gameplay with friends for shared scares and strategyCo op turns tension into shared panicDemon types require unique counterplayAtmosphericEerieMysterious

Players who liked Demonsomnia also play

Steam players who put hours into Demonsomnia also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. Dark Past

    WHY THIS

    Top pick for Demonsomnia fans by collaborative filtering across millions of Steam libraries. 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.

    2022ActionIndieEarly Access5.99 USDSteam ↗
  2. We Are Alive

    WHY THIS

    Second-strongest match for Demonsomnia fans by collaborative filtering across millions of Steam libraries.

    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.

    2024Indie4.99 USDSteam ↗
  3. Phasmophobia

    WHY THIS

    Shares evidence collection and an atmospheric mood with Demonsomnia.

    Third-strongest match for Demonsomnia fans by collaborative filtering across millions of Steam libraries. 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.

    2020ActionIndieEarly Access19.99 USDSteam ↗
  4. PNEUMA

    WHY THIS

    Ranked #4 for Demonsomnia fans by collaborative filtering across millions of Steam libraries. 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.

    2027ActionIndieSteam ↗
  5. The Backrooms - Nightmare Dimension

    WHY THIS

    Ranked #5 for Demonsomnia fans by collaborative filtering across millions of Steam libraries. 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".

    2023ActionIndie4.99 USDSteam ↗
  6. Gorecam

    WHY THIS

    Ranked #6 for Demonsomnia fans by collaborative filtering across millions of Steam libraries. 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.

    2027ActionIndieAdventureSteam ↗
  7. Give Us A Sign

    WHY THIS

    Ranked #7 for Demonsomnia fans by collaborative filtering across millions of Steam libraries. 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.

    ActionIndieAdventureSteam ↗
  8. ESCAPE Protocol: Online

    WHY THIS

    Ranked #8 for Demonsomnia fans by collaborative filtering across millions of Steam libraries. 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.

    ActionIndieAdventureSteam ↗

Reviewers mention these as similar to Demonsomnia

Surfaced from review text: when other players write 'if you liked X, try Y', we catch the name and resolve it back to a Steam game.

  1. Phasmophobia

    WHY THIS

    Shares evidence collection and an atmospheric mood with Demonsomnia.

    Reviewers of Demonsomnia cross-mention this title as a similar play. 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.

    2020ActionIndieEarly Access19.99 USDSteam ↗
  2. Outlast

    WHY THIS

    Shares a stressful mood with Demonsomnia.

    Reviewers of Demonsomnia cross-mention this title as a similar play. 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.

    2013ActionIndieAdventure14.99 USDDeck PlayableSteam ↗
  3. SCP: 5K

    WHY THIS

    Shares an atmospheric mood with Demonsomnia.

    Reviewers of Demonsomnia cross-mention this title as a similar play. 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!

    2022ActionStrategyIndie19.99 USDDeck PlayableSteam ↗
  4. Metro Exodus

    WHY THIS

    Shares an atmospheric mood with Demonsomnia.

    Reviewers of Demonsomnia cross-mention this title as a similar play. 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.

    2020Action29.99 USDDeck PlayableSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Demonsomnia at current Steam store prices.

  1. Vampire Survivors

    WHY THIS

    Priced ~64% under Demonsomnia on Steam right now. Shares Action with Demonsomnia.

    Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!

    2022ActionIndieRPG4.99 USDDeck VerifiedSteam ↗
  2. R.E.P.O.

    WHY THIS

    Priced ~50% under Demonsomnia on Steam right now. Shares Action and Early Access with Demonsomnia.

    An online co-op horror game with up to 6 players. Locate valuable, fully physics-based objects and handle them with care as you retrieve and extract to satisfy your creator's desires.

    2025ActionEarly Access6.99 USDDeck PlayableSteam ↗
  3. PEAK

    WHY THIS

    Priced ~43% under Demonsomnia on Steam right now. Shares Action with Demonsomnia.

    PEAK is a co-op climbing game where the slightest mistake can spell your doom. Either solo or as a group of lost nature scouts, your only hope of rescue from a mysterious island is to scale the mountain at its center. Do you have what it takes to reach the PEAK?

    2025ActionIndieAdventure7.99 USDDeck VerifiedSteam ↗
  4. Titanfall® 2

    WHY THIS

    Priced ~68% under Demonsomnia on Steam right now. Shares Action with Demonsomnia.

    Respawn Entertainment gives you the most advanced titan technology in its new, single player campaign & multiplayer experience. Combine & conquer with new titans & pilots, deadlier weapons, & customization and progression systems that help you and your titan flow as one unstoppable killing force.

    2020Action4.49 USDDeck PlayableSteam ↗
  5. Noita

    WHY THIS

    Priced ~43% under Demonsomnia on Steam right now. Shares Action with Demonsomnia.

    Noita is a magical action roguelite set in a world where every pixel is physically simulated. Fight, explore, melt, burn, freeze and evaporate your way through the procedurally generated world using spells you've created yourself.

    2020ActionIndieAdventure7.99 USDDeck VerifiedSteam ↗
  6. POSTAL 2

    WHY THIS

    Priced ~93% under Demonsomnia on Steam right now. Shares Action with Demonsomnia.

    Live a week in the life of "The POSTAL Dude"; a hapless everyman just trying to check off some chores. Buying milk, returning an overdue library book, getting Gary Coleman's autograph, what could possibly go wrong?

    2012ActionIndieAdventure0.99 USDDeck VerifiedSteam ↗
  7. Buckshot Roulette

    WHY THIS

    Priced ~79% under Demonsomnia on Steam right now. Shares Action with Demonsomnia.

    Play Russian roulette with a 12-gauge shotgun. Four enter. One leaves. Roll the dice with your life. Good luck!

    2024ActionIndieSimulation2.99 USDDeck PlayableSteam ↗
  8. Brotato

    WHY THIS

    Priced ~64% under Demonsomnia on Steam right now. Shares Action with Demonsomnia.

    Brotato is a top-down arena shooter roguelite where you play a potato wielding up to 6 weapons at a time to fight off hordes of aliens. Choose from a variety of traits and items to create unique builds and survive until help arrives.

    2023ActionIndieRPG4.99 USDDeck VerifiedSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Doki Doki Literature Club!

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.

    2017IndieFree To PlayCasualFreeDeck PlayableSteam ↗
  2. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Demonsomnia.

    Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!

    2018ActionIndieFree To PlayFreeSteam ↗
  3. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Demonsomnia.

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗
  4. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Demonsomnia.

    STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.

    2024ActionFreeDeck PlayableSteam ↗
  5. Counter-Strike:Global Offensive

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Demonsomnia.

    Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).

    2012ActionFree To PlayFreeDeck PlayableSteam ↗
  6. The Expendabros

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Demonsomnia.

    The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.

    2014ActionIndieAdventureFreeDeck VerifiedSteam ↗
  7. Dagon: by H. P. Lovecraft

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Face unspeakable horrors. Succumb to madness. Welcome to a free daemonic narrative experience inspired by H. P. Lovecraft.

    2021IndieAdventureFree To PlayFreeDeck VerifiedSteam ↗
  8. Paper Lily - Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Paper Lily is an RPG horror game in which you can solve puzzles in different ways. Explore a hidden world, meet strange characters, and guide Lacie as she attempts to find answers about her unusual condition.

    2024IndieAdventureRPGFreeDeck VerifiedSteam ↗

Frequently asked about Demonsomnia

Does Demonsomnia run on Steam Deck?
Demonsomnia is rated Playable on Steam Deck — it runs, but expect some manual adjustments (control remapping, text size, or graphics settings) for the best experience.
How much does Demonsomnia cost?
Demonsomnia is listed on Steam at 13.99 USD (current store price; Steam sales may reduce this temporarily).
Does Demonsomnia have multiplayer or co-op?
Yes — Demonsomnia supports multi-player play according to its Steam store listing (Multi-player, Online Co-op, Co-op).
What games are most similar to Demonsomnia?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Demonsomnia are Dark Past, We Are Alive, Phasmophobia.
Who developed Demonsomnia?
Demonsomnia was developed by Serhat Akgul and published by Demonsomnia Team.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Demonsomnia.

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