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Single-player games like Alien X

Below are 16 single-player Steam games similar to Alien X, 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 Alien X page.

Ranked picks

  1. 1
    PLANET ALPHA — Steam game cover

    PLANET ALPHA

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

    PLANET ALPHA, a beautiful alien world filled with mystery and danger. Pursued by relentless enemies, you must harness the power of night and day as you struggle to survive.

    2018ActionIndieAdventure9.99 USDSingle-playerSimilar games →
  2. 2
    Bionic Bay — Steam game cover

    Bionic Bay

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

    A scientist uses a unique teleportation instrument to escape an ancient biomechanical world filled with imaginative technology, deadly traps, and hidden secrets.

    2025ActionIndieAdventure6.24 USDDeck VerifiedSingle-playerSimilar games →
  3. 3
    Lakeview Cabin Collection — Steam game cover

    Lakeview Cabin Collection

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

    Delve into the diverse world of horror movies in this 2D action puzzler. Nothing can prepare you for the R-rated challenges you will face!

    2015Indie9.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    ElecHead — Steam game cover

    ElecHead

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

    ⚡+🤖+🧩

    2021ActionIndieAdventure9.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    INSIDE — Steam game cover

    INSIDE

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

    Hunted and alone, a boy finds himself drawn into the center of a dark project. INSIDE is a dark, narrative-driven platformer combining intense action with challenging puzzles. It has been critically acclaimed for its moody art style, ambient soundtrack and unsettling atmosphere.

    2016ActionIndieAdventure24.99 USDDeck VerifiedSingle-playerSimilar games →
  6. 6
    Oddworld: Soulstorm Enhanced Edition — Steam game cover

    Oddworld: Soulstorm Enhanced Edition

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

    Oddworld: Soulstorm is the explosive second game in a brand new Oddworld Quintology that tells the continuing story of Abe and his comrades as they discover further crimes against Mudokonkind and look for the spark that will ignite a revolution.

    2022ActionIndieAdventure39.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    LIMBO — Steam game cover

    LIMBO

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

    Uncertain of his sister's fate, a boy enters LIMBO

    2011ActionIndieAdventure12.49 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    SYMMETRY — Steam game cover

    SYMMETRY

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

    A research spaceship reaches an abandoned planet. Nothing is what it seems here and the situation quickly slips out of control. Can the crew manage to survive and get back home?

    2018StrategyIndieAdventure2.39 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Furry Sex — Steam game cover

    Furry Sex

    Single-player alternative to Alien X — playable solo, no multiplayer required. Shares Adventure and Casual with Alien X.

    An erotic memory game with furry characters and explicit illustrations.

    2022AdventureCasual4.99 USDSingle-playerSimilar games →
  10. 10
    Hentai Big Tits — Steam game cover

    Hentai Big Tits

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

    Hentai Big Tits - is the simplest 2D puzzle the final goal of which to give you pleasure!

    2022IndieAdventureSimulation0.59 USDSingle-playerSimilar games →
  11. 11
    Furry Orgasm — Steam game cover

    Furry Orgasm

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

    Furry Orgasm - is an amazing 2D puzzle with images of furry beauty ladies the final purpose of which to give you some pleasure!

    2022IndieAdventureSimulation0.59 USDSingle-playerSimilar games →
  12. 12
    Battle Cube — Steam game cover

    Battle Cube

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

    Battle Cube - is really hardcore 2D platformer with surviving elements where you will have to do different levels playing like a cube.

    2021ActionIndieAdventure0.99 USDSingle-playerSimilar games →
  13. 13
    Smoked Gun — Steam game cover

    Smoked Gun

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

    Smoked Gun - is a hardcore 3D shooter with surviving elements done as DOOM, where you will have to fight against the whole criminal world alone, against mafia.

    2021ActionIndieAdventure3.99 USDSingle-playerSimilar games →
  14. 14
    Detective Story — Steam game cover

    Detective Story

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

    Detective Story - is a simple quest game, with hardoce elements, where you play as a detective Harold. You look for clues, interview witnesses and collect everything to clear a crime.

    2021IndieAdventureSimulation4.99 USDSingle-playerSimilar games →
  15. 15
    STRAY KITTEN — Steam game cover

    STRAY KITTEN

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

    STRAY KITTEN - is a short 2D platformer with surviving and hardcore elements where it is described a story about one lost kitten Silver.

    2021IndieAdventureSimulation0.99 USDSingle-playerSimilar games →
  16. 16
    Z.O.M.B.I.E. — Steam game cover

    Z.O.M.B.I.E.

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

    Z.O.M.B.I.E. - is an unusual 3D shooter with surviving elements where you will have to survive in a zombie apocalypse, playing as a girl named Zoe.

    2021ActionIndieAdventure0.49 USDSingle-playerSimilar games →