IMHO.

Free games like Unknown Planet

Below are 8 free-to-play Steam games similar to Unknown Planet, 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 Unknown Planet page.

Ranked picks

  1. 1
    Indigo Park: Chapter 1 — Steam game cover

    Indigo Park: Chapter 1

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

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  2. 2
    The Looker — Steam game cover

    The Looker

    Free-to-play alternative to Unknown Planet — no purchase or trial window. Shares Indie with Unknown Planet.

    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
    The Expendabros — Steam game cover

    The Expendabros

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

    The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.

    2014ActionIndieAdventureFreeDeck VerifiedFree to playSimilar games →
  4. 4
    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 Unknown Planet — no purchase or trial window. Shares Indie and Adventure with Unknown Planet.

    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 →
  5. 5
    Control, I'm Not Coming Back — Steam game cover

    Control, I'm Not Coming Back

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

    Control, I'm Not Coming Back is a short and emotional narrative game about a lost astronaut searching for a reason to keep going forward while facing the emptiness of space. Inspired by the Hopecore aesthetic, it’s a story about positivism, friendship and our human connection with Voyager 1.

    2026IndieAdventureFree To PlayFreeFree to playSimilar games →
  6. 6
    SuchArt: Creative Space — Steam game cover

    SuchArt: Creative Space

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

    Paint on any surfaces with numerous tools in Creative Space — a free sandbox version of SuchArt: Genius Artist Simulator. Create masterpieces, complete commissions, and decorate your studio in the most advanced artist sim!

    2021ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  7. 7
    Aircar — Steam game cover

    Aircar

    Free-to-play alternative to Unknown Planet — no purchase or trial window. Shares Indie with Unknown Planet.

    A simple immersive flying game built for VR. Pilot an aircar through a futuristic cityscape.

    2019IndieFree To PlayCasualFreeFree to playSimilar games →
  8. 8
    Tukoni: Prologue — Steam game cover

    Tukoni: Prologue

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

    Tukoni: Prologue is a point-and-click puzzle adventure, based on a series of award-winning books by the Ukrainian artist Oksana Bula. Play as Tukoni, the forest spirits, as you meet unique characters, solve captivating puzzles, craft new items, and explore a magical world filled with kindness.

    2020IndieAdventureCasualFreeFree to playSimilar games →