IMHO.

Single-player games like >observer_

Below are 23 single-player Steam games similar to >observer_, 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 >observer_ page.

Ranked picks

  1. 1
    Transient: Extended Edition — Steam game cover

    Transient: Extended Edition

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    H.P. Lovecraft meets Cyberpunk. Delve deep into a dystopian world and investigate what is happening to you and your friends in a domed city. Solve puzzles, hack systems and plug in to explore other dimensions. Discover a truth that might tear apart your sanity and question your very existence.

    2020IndieAdventure19.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Master Reboot — Steam game cover

    Master Reboot

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    Imagine a world where death is no longer final, where precious memories are saved to enjoy forever, where your soul is immortal. Master Reboot is a haunting first-person sci-fi adventure.

    2013ActionIndieAdventure2.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Hunger Apartment (蚀狱) — Steam game cover

    Hunger Apartment (蚀狱)

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    This is Hunger Apartment, a place feeding you, warming you, and satisfying all your fantasies.

    2019StrategyIndieAdventure2.99 USDSingle-playerSimilar games →
  4. 4
    G String — Steam game cover

    G String

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    Slip into the Standard Issue Biosuit as Myo Hyori, a gifted Korean teenage girl who must face the perils of the future. Survive many hazards, explore a seemingly endless metropolis and beyond as the world around you implodes and history marches towards its inevitable conclusion.

    2020ActionIndieAdventure17.99 USDSingle-playerSimilar games →
  5. 5
    Silicon Dreams  |  cyberpunk interrogation — Steam game cover

    Silicon Dreams | cyberpunk interrogation

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    It’s 2065, and you are an interrogator-model android tasked with rooting out deviants among your own kind. You must probe for lies, monitor and exploit emotional spikes, earn the trust of your subjects, and make the final call: release, or destroy?

    2021IndieAdventureSimulation14.99 USDSingle-playerSimilar games →
  6. 6
    Observer: System Redux — Steam game cover

    Observer: System Redux

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    A first‑person cyberpunk horror detective story set in a decaying, neon‑scarred future. As an Observer who invades minds to hunt for clues, you will sift through corrupted memories to track down a mysterious killer and confront your own dark past.

    2020IndieAdventure29.99 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    State of Mind — Steam game cover

    State of Mind

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    State of Mind is a futuristic thriller game delving into transhumanism. The game explores themes of separation, disjuncture and reunification, in a world that is torn between a dystopian material reality and a utopian virtual future.

    2018IndieAdventure19.99 USDSingle-playerSimilar games →
  8. 8
    Tales of the Neon Sea — Steam game cover

    Tales of the Neon Sea

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    Welcome to a world of intrigue and suspicion. Where humans and robots contend with escalating tensions and mutual distrust. And where gangster felines scheme their way to the top of the food chain. Welcome to the Tales of the Neon Sea!

    2019IndieAdventure16.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    SOMA — Steam game cover

    SOMA

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    From the creators of Amnesia: The Dark Descent comes SOMA, a sci-fi horror game set below the waves of the Atlantic ocean. Struggle to survive a hostile world that will make you question your very existence.

    2015ActionIndieAdventure29.99 USDDeck VerifiedSingle-playerSimilar games →
  10. 10
    Outlast — Steam game cover

    Outlast

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    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 PlayableSingle-playerSimilar games →
  11. 11
    Layers of Fear (2016) — Steam game cover

    Layers of Fear (2016)

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    A first-person psychological horror with a strong emphasis on atmosphere and storytelling. Explore an ever-shifting Victorian mansion as a painter seeking to complete his masterpiece, even at the cost of his own sanity.

    2016IndieAdventure19.99 USDDeck PlayableSingle-playerSimilar games →
  12. 12
    Psychonauts — Steam game cover

    Psychonauts

    Single-player alternative to >observer_ — playable solo, no multiplayer required.

    A Psychic Odyssey Through the Minds of Misfits, Monsters, and Madmen. This classic action/adventure platformer from acclaimed developers Double Fine Productions follows the story of a young psychic named Razputin.

    2006Action9.99 USDDeck PlayableSingle-playerSimilar games →
  13. 13
    Deus Ex: Game of the Year Edition — Steam game cover

    Deus Ex: Game of the Year Edition

    Single-player alternative to >observer_ — playable solo, no multiplayer required.

    The year is 2052 and the world is a dangerous and chaotic place. Terrorists operate openly - killing thousands; drugs, disease and pollution kill even more. The world's economies are close to collapse and the gap between the insanely wealthy and the desperately poor grows ever wider.

    2007Action6.99 USDDeck PlayableSingle-playerSimilar games →
  14. 14
    Cyberpunk 2077 — Steam game cover

    Cyberpunk 2077

    Single-player alternative to >observer_ — playable solo, no multiplayer required.

    Cyberpunk 2077 is an open-world, action-adventure RPG set in the dark future of Night City — a dangerous megalopolis obsessed with power, glamor, and ceaseless body modification.

    2020RPG59.99 USDDeck VerifiedSingle-playerSimilar games →
  15. 15
    AMNESIA — Steam game cover

    AMNESIA

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    After a series of events now shrouded in mystery, our protagonist - a young man - fell into a coma, losing all recollection of the person he used to be. He is given a clean slate. All that’s left to do now is to carefully and thoroughly investigate every facet of your former self.

    2022IndieAdventureEarly Access9.99 USDDeck PlayableSingle-playerSimilar games →
  16. 16
    Resident Evil 4 — Steam game cover

    Resident Evil 4

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Adventure with >observer_.

    Survival is just the beginning. Six years have passed since the biological disaster in Raccoon City. Leon S. Kennedy, one of the survivors, tracks the president's kidnapped daughter to a secluded European village, where there is something terribly wrong with the locals.

    2023ActionAdventure39.99 USDDeck VerifiedSingle-playerSimilar games →
  17. 17
    SILENT HILL 2 — Steam game cover

    SILENT HILL 2

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Adventure with >observer_.

    Investigating a letter from his late wife, James returns to where they made so many memories - Silent Hill. What he finds is a ghost town, prowled by disturbing monsters and cloaked in deep fog. Confront the monsters, solve puzzles, and search for traces of your wife in this remake of SILENT HILL 2.

    2024ActionAdventure34.99 USDSingle-playerSimilar games →
  18. 18
    Blair Witch — Steam game cover

    Blair Witch

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    A first-person, story-driven psychological horror game based on the cinematic lore of the Blair Witch. Explore the haunted grounds of the Black Hills Forest in a harrowing investigation that forces you to confront the evil that resides deep in the woods.

    2019IndieAdventure29.99 USDSingle-playerSimilar games →
  19. 19
    Layers of Fear 2 (2019) — Steam game cover

    Layers of Fear 2 (2019)

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    A first‑person psychological horror game set on a haunted ocean liner. As an actor summoned by an unorthodox director, you’ll confront twisted memories from your past and learn the price of achieving the perfect performance.

    2019IndieAdventureCasual19.99 USDDeck PlayableSingle-playerSimilar games →
  20. 20
    Blair Witch VR — Steam game cover

    Blair Witch VR

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    Blair Witch: VR Edition is a story-driven psychological horror game from the creative minds behind the critically acclaimed The Medium. Experience first-hand the toll that fear can take on the mind in an original story inspired by the cinematic lore of Blair Witch, designed for Virtual Reality.

    2021IndieAdventure29.99 USDSingle-playerSimilar games →
  21. 21
    A-Men — Steam game cover

    A-Men

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    What is A-Men?Classic puzzle-platformer, inspired by some oldschool titles like Lemmings and Lost Vikings. What is A-Men like?Hard. No holding your hand, no easy levels, we want to challenge you. If you are a casual, A-Men is not for you.

    2014ActionIndieAdventure9.99 USDSingle-playerSimilar games →
  22. 22
    A-Men 2 — Steam game cover

    A-Men 2

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie and Adventure with >observer_.

    Prepare yourself for another journey through series of new worlds, featuring multiple challenges with many ways to pass a level and resolve puzzles. A-MEN 2 allows you to hang out with your good, old friends once more.

    2015IndieAdventure8.99 USDSingle-playerSimilar games →
  23. 23
    BRAWL — Steam game cover

    BRAWL

    Single-player alternative to >observer_ — playable solo, no multiplayer required. Shares Indie with >observer_.

    The most explosive competitive arena game of the year has arrived on Steam! Battle it out in this heavily skilled-reliant bomb bonanza, controlling one of eight unique characters, each possessing their own deadly skillset that adds speed and tactical depth to the oldschool gameplay.

    2015ActionIndie14.99 USDSingle-playerSimilar games →