IMHO.

Single-player games like Syndrome

Below are 18 single-player Steam games similar to Syndrome, 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 Syndrome page.

Ranked picks

  1. 1
    Beyond Horror: Episode One, A Father's Journey — Steam game cover

    Beyond Horror: Episode One, A Father's Journey

    Single-player alternative to Syndrome — playable solo, no multiplayer required. Shares Action and Adventure with Syndrome.

    The game is the first episode of a survival horror first person adventure, featuring action, stealth, shooting and puzzle solving. Every chapter has a specific theme and will play differently according to the plot, with tons of references to the classics that made the horror genre what it is today.

    2021ActionIndieAdventure3.99 USDSingle-playerSimilar games →
  2. 2
    Kohate — Steam game cover

    Kohate

    Single-player alternative to Syndrome — playable solo, no multiplayer required. Shares Action and Adventure with Syndrome.

    Arrested and sold at auction, you have been transported to a secret testing facility in deep space. Perform the required tasks while avoiding the abomination lurking within the complex.

    2020ActionIndieAdventure4.99 USDSingle-playerSimilar games →
  3. 3
    House Of Horror: Outside Is Better — Steam game cover

    House Of Horror: Outside Is Better

    Single-player alternative to Syndrome — playable solo, no multiplayer required. Shares Action and Adventure with Syndrome.

    House of Horror: Outside Is Better is a first-person psychological survival horror game with FPS mechanics. Explore a facility consumed by madness, solve puzzles, manage scarce resources, and survive using your wits and a dynamo-powered flashlight, where every shadow can become a deadly threat.

    ActionIndieAdventureSingle-playerSimilar games →
  4. 4
    Paraplasm: Beyond the Veil — Steam game cover

    Paraplasm: Beyond the Veil

    Single-player alternative to Syndrome — playable solo, no multiplayer required. Shares Action and Adventure with Syndrome.

    You fell into this cursed house! But will you be able to cope with the paranormal activity? Solve the puzzles and try to find your way out!

    2024ActionIndieAdventure0.99 USDSingle-playerSimilar games →
  5. 5
    Alien: Isolation — Steam game cover

    Alien: Isolation

    Single-player alternative to Syndrome — playable solo, no multiplayer required. Shares Action with Syndrome.

    Discover the true meaning of fear in Alien: Isolation, a survival horror set in an atmosphere of constant dread and mortal danger.

    2014Action39.99 USDDeck VerifiedSingle-playerSimilar games →
  6. 6
    Budget Cuts — Steam game cover

    Budget Cuts

    Single-player alternative to Syndrome — playable solo, no multiplayer required. Shares Action and Adventure with Syndrome.

    Budget Cuts is a VR stealth game where you dexterously zip, sneak or rambo your way forward through thrilling, oil-splatter filled combat!

    2018ActionIndieAdventure14.99 USDSingle-playerSimilar games →
  7. 7
    Dementium: The Ward — Steam game cover

    Dementium: The Ward

    Single-player alternative to Syndrome — playable solo, no multiplayer required. Shares Action and Adventure with Syndrome.

    Classic DS horror reborn. Awaken in an abandoned hospital with no memory, no escape and unspeakable horrors lurking in the dark. The horror classic Dementium: The Ward returns, enhanced for 4K display and Steam Deck Verified, where every shadow hides a new threat, and every corridor a new nightmare.

    2025ActionIndieAdventure14.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Gynophobia — Steam game cover

    Gynophobia

    Single-player alternative to Syndrome — playable solo, no multiplayer required. Shares Action and Adventure with Syndrome.

    Gynophobia is a horror themed shooter about abnormal fear of women. Gynophobia is using classic first person shooter gameplay, to convey story about Mark, who is suffering from different phobias, including abnormal fear of woman.

    2015ActionIndieAdventure1.99 USDSingle-playerSimilar games →
  9. 9
    SOMA — Steam game cover

    SOMA

    Single-player alternative to Syndrome — playable solo, no multiplayer required. Shares Action and Adventure with Syndrome.

    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
    System Shock — Steam game cover

    System Shock

    Single-player alternative to Syndrome — playable solo, no multiplayer required. Shares Action and Adventure with Syndrome.

    A first-person fight to the death in the depths of space!

    2023ActionAdventure39.99 USDDeck PlayableSingle-playerSimilar games →
  11. 11
    Resident Evil — Steam game cover

    Resident Evil

    Single-player alternative to Syndrome — playable solo, no multiplayer required. Shares Action and Adventure with Syndrome.

    The game that defined the survival-horror genre is back! Check out the remastered HD version of Resident Evil.

    2015ActionAdventure19.99 USDDeck VerifiedSingle-playerSimilar games →
  12. 12
    Dead Space — Steam game cover

    Dead Space

    Single-player alternative to Syndrome — playable solo, no multiplayer required. Shares Action and Adventure with Syndrome.

    The sci-fi survival-horror classic returns, completely rebuilt to offer an even more immersive experience — including visual, audio, and gameplay improvements — while staying faithful to the original game’s thrilling vision.

    2023ActionAdventure14.99 USDDeck PlayableSingle-playerSimilar games →
  13. 13
    Those Who Remain — Steam game cover

    Those Who Remain

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

    As the lights go out, the embers of darkness are stoked in the sleepy town of Dormont. Confront uncomfortable horrors, keep your sanity in check and survive the night in this story-driven first-person psychological-thriller.

    2020IndieAdventure19.99 USDSingle-playerSimilar games →
  14. 14
    Beneath — Steam game cover

    Beneath

    Single-player alternative to Syndrome — playable solo, no multiplayer required. Shares Action and Adventure with Syndrome.

    Beneath is a Lovecraft-inspired survival FPS. Scarce ammo, merciless enemies and a sense of the unknown combine in a 10+ hour, story-driven single player campaign, built for both veteran gamers and those seeking a challenging old school experience.

    2025ActionAdventure19.99 USDDeck PlayableSingle-playerSimilar games →
  15. 15
    Gemini Wars — Steam game cover

    Gemini Wars

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

    Take control of a fleet commander returned from exile, rise through the ranks of the United Space Federation forces and join an epic war across the stars.

    2012StrategyIndie9.99 USDSingle-playerSimilar games →
  16. 16
    Mechs & Mercs: Black Talons — Steam game cover

    Mechs & Mercs: Black Talons

    Single-player alternative to Syndrome — playable solo, no multiplayer required. Shares Action with Syndrome.

    You are the commander of the Black Talons company, currently stationed in the Oberon system. After an eventful campaign, the military Tzanar Union has overrun the planet of Genai and blocked all departure from the system: leaving you and the Black Talons stranded.

    2015ActionStrategyIndie9.99 USDDeck PlayableSingle-playerSimilar games →
  17. 17
    Orczz — Steam game cover

    Orczz

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

    Orczz is a fantasy tower defense game set in the fantasy Kingdom of Whiteleaf, famous for its delicious honey wine – the mead. The player controls the Knight Order of the Mug, protectors of Whiteleaf and the mead, who are once again called to defend the land against an invading horde of orcs.

    2016Strategy2.99 USDSingle-playerSimilar games →
  18. 18
    Dead Stop - No Vacancy — Steam game cover

    Dead Stop - No Vacancy

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

    One night at the Paradise Motel. One reporter who took a wrong turn. One thing certain: nobody checks out clean. A short retro horror inspired by 80s slasher films.

    2026AdventureSingle-playerSimilar games →