IMHO.

Free games like Alienautics

Below are 8 free-to-play Steam games similar to Alienautics, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Alienautics page.

Ranked picks

  1. 1
    Star Fetchers — Steam game cover

    Star Fetchers

    Free-to-play alternative to Alienautics — no purchase or trial window. Shares Action and Indie with Alienautics.

    The introduction to a wild ride with gangsters and deep state conspiracy theories

    2020ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  2. 2
    Princess Remedy in a World of Hurt — Steam game cover

    Princess Remedy in a World of Hurt

    Free-to-play alternative to Alienautics — no purchase or trial window. Shares Action and Indie with Alienautics.

    Remedy, a recent graduate from the Saturnian healing school, must descend to Hurtland and use her powers to heal everyone from stray ducks to dark lords, and finally cure the ailing Prince Hingst. It's a short, whimsical adventure with plenty of heart(s).

    2016ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  3. 3
    Epic Battle Fantasy 3 — Steam game cover

    Epic Battle Fantasy 3

    Free-to-play alternative to Alienautics — no purchase or trial window. Shares Indie and Adventure with Alienautics.

    Epic Battle Fantasy 3 is a silly turn-based JRPG, full of useless NPCs, rabid cats, childish humor, unreasonably large weapons, anime boobs, and other nonsense. And it's totally free!

    2016IndieAdventureRPGFreeDeck PlayableFree to playSimilar games →
  4. 4
    The Riftbreaker: Prologue — Steam game cover

    The Riftbreaker: Prologue

    Free-to-play alternative to Alienautics — no purchase or trial window. Shares Action and Indie with Alienautics.

    The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.

    2020ActionStrategyIndieFreeDeck PlayableFree to playSimilar games →
  5. 5
    Trick & Treat — Steam game cover

    Trick & Treat

    Free-to-play alternative to Alienautics — no purchase or trial window. Shares Indie and Adventure with Alienautics.

    Trick or treating in a vampire's house.Trick & Treat is a light-hearted Halloween adventure. It's about exploring and solving puzzles in a spooky atmosphere. There will be some horror elements, romance, many bad ends and a happy ending of true love.

    2016IndieAdventureFree To PlayFreeDeck PlayableFree to playSimilar games →
  6. 6
    Warframe — Steam game cover

    Warframe

    Free-to-play alternative to Alienautics — no purchase or trial window. Shares Action and RPG with Alienautics.

    Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game

    2013ActionRPGFree To PlayFreeDeck VerifiedFree to playSimilar games →
  7. 7
    SCP: Secret Laboratory — Steam game cover

    SCP: Secret Laboratory

    Free-to-play alternative to Alienautics — no purchase or trial window. Shares Action and Indie with Alienautics.

    Deep within a secure underground facility, a sudden containment breach allows many of the secured anomalies to escape from their chambers. Assist the Foundation in re-securing the facility, help the Insurgency in their goal to capture it, or wreak havoc as an SCP in a frantic bid to escape.

    2017ActionIndieRPGFreeDeck PlayableFree to playSimilar games →
  8. 8
    Splitgate — Steam game cover

    Splitgate

    Free-to-play alternative to Alienautics — no purchase or trial window. Shares Action and Indie with Alienautics.

    Splitgate is a free-to-play, fast-paced multiplayer shooter that features player-controlled portals. This sci-fi shooter takes the FPS genre to a new dimension with its portal mechanics, delivering high-flying, multi-dimensional combat.

    2019ActionIndieFree To PlayFreeFree to playSimilar games →