IMHO.

Free games like Onslaught

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

Ranked picks

  1. 1
    ENA: Dream BBQ — Steam game cover

    ENA: Dream BBQ

    Free-to-play alternative to Onslaught — no purchase or trial window. Shares Adventure with Onslaught.

    Experience surreal environments and inexplicable characters as ENA in a new wild world.

    2025IndieAdventureFreeDeck VerifiedFree to playSimilar games →
  2. 2
    Indigo Park: Chapter 1 — Steam game cover

    Indigo Park: Chapter 1

    Free-to-play alternative to Onslaught — no purchase or trial window. Shares Adventure with Onslaught.

    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 →
  3. 3
    UNBEATABLE [white label] — Steam game cover

    UNBEATABLE [white label]

    Free-to-play alternative to Onslaught — no purchase or trial window. Shares Adventure with Onslaught.

    A young girl learns a song. An exclusive side-story set in the world of D-CELL GAMES' upcoming rhythm-adventure.

    2021ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  4. 4
    Control, I'm Not Coming Back — Steam game cover

    Control, I'm Not Coming Back

    Free-to-play alternative to Onslaught — no purchase or trial window. Shares Adventure with Onslaught.

    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 →
  5. 5
    93, Kuindzhi — Steam game cover

    93, Kuindzhi

    Free-to-play alternative to Onslaught — no purchase or trial window. Shares Adventure with Onslaught.

    Kuindzhi, 93 is an atmospheric first-person narrative vignette about an 18-year-old boy from Donbas. The story takes us to March 2022, when the world changed forever — into a space where the past, fears, and doubts find their voice.

    2026IndieAdventureFree To PlayFreeFree to playSimilar games →
  6. 6
    Tukoni: Prologue — Steam game cover

    Tukoni: Prologue

    Free-to-play alternative to Onslaught — no purchase or trial window. Shares Adventure with Onslaught.

    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 →
  7. 7
    A Space For The Unbound - Prologue — Steam game cover

    A Space For The Unbound - Prologue

    Free-to-play alternative to Onslaught — no purchase or trial window. Shares Adventure with Onslaught.

    Prologue chapter of A Space For The Unbound, an upcoming slice-of-life adventure game with beautiful pixelart set in the late 90s rural Indonesia that tells a story about overcoming anxiety, depression, and the relationship between a boy and a girl with supernatural powers

    2020IndieAdventureFreeFree to playSimilar games →
  8. 8
    Wires And Whiskers — Steam game cover

    Wires And Whiskers

    Free-to-play alternative to Onslaught — no purchase or trial window. Shares Adventure with Onslaught.

    Wires and Whiskers is a local co-op action-puzzle game where two players control a lab-engineered gerbil and its magnetic exosuit. Work together to fight mutated enemies, solve magnetic puzzles, and survive in a ruined, post-apocalyptic trench world.

    2025ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →