IMHO.

Free games like Astrox Imperium

Below are 9 free-to-play Steam games similar to Astrox Imperium, 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 Astrox Imperium page.

Ranked picks

  1. 1
    Ultimate Custom Night — Steam game cover

    Ultimate Custom Night

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

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

    2018ActionIndieFree To PlayFreeFree to playSimilar games →
  2. 2
    The Looker — Steam game cover

    The Looker

    Free-to-play alternative to Astrox Imperium — no purchase or trial window. Shares Indie with Astrox Imperium.

    You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.

    2022IndieFreeDeck PlayableFree to playSimilar games →
  3. 3
    missed messages. — Steam game cover

    missed messages.

    Free-to-play alternative to Astrox Imperium — no purchase or trial window. Shares Indie and Simulation with Astrox Imperium.

    ‘goth gf’s iPhone’ airdrops you - accept or decline? A love/horror story about life, death, & memes.

    2019IndieSimulationFree To PlayFreeDeck PlayableFree to playSimilar games →
  4. 4
    Virtual Cottage — Steam game cover

    Virtual Cottage

    Free-to-play alternative to Astrox Imperium — no purchase or trial window. Shares Indie and Simulation with Astrox Imperium.

    Virtual Cottage gives you a comfy place to rest and be productive without any distractions. Open the game, set yourself a goal and enjoy the atmosphere.

    2020IndieSimulationFree To PlayFreeDeck PlayableFree to playSimilar games →
  5. 5
    The Lab — Steam game cover

    The Lab

    Free-to-play alternative to Astrox Imperium — no purchase or trial window.

    Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!

    2016Free To PlayFreeFree to playSimilar games →
  6. 6
    Z.A.T.O. // I Love the World and Everything In It — Steam game cover

    Z.A.T.O. // I Love the World and Everything In It

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

    USSR, 1986. A girl goes missing in the closed city of Vorkuta-5, yet not a soul seems to be concerned. Uncover the mystery behind her disappearance and transmit your signal to the universe.

    2025IndieAdventureFree To PlayFreeDeck VerifiedFree to playSimilar games →
  7. 7
    DORONKO WANKO — Steam game cover

    DORONKO WANKO

    Free-to-play alternative to Astrox Imperium — no purchase or trial window. Shares Action and Simulation with Astrox Imperium.

    『DORONKO WANKO』 is a DORONKO Action Game. In this game, You can become a cute, innocent Pomeranian, make your master's home messy and dirty. "Will the master be angry with me?" Don't worry. Because you are a sweet doggie.

    2024ActionSimulationFree To PlayFreeFree to playSimilar games →
  8. 8
    No Results Found — Steam game cover

    No Results Found

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

    Search, dig deeper, and search again. Can you reach the end of the truth?

    2026IndieAdventureSimulationFreeFree to playSimilar games →
  9. 9
    Endless Sky — Steam game cover

    Endless Sky

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

    Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.

    2015ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →