IMHO.

Free games like 0 Day

Below are 8 free-to-play Steam games similar to 0 Day, 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 0 Day page.

Ranked picks

  1. 1
    STRAFTAT — Steam game cover

    STRAFTAT

    Free-to-play alternative to 0 Day — no purchase or trial window. Shares Action with 0 Day.

    STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.

    2024ActionFreeDeck PlayableFree to playSimilar games →
  2. 2
    Iron Snout — Steam game cover

    Iron Snout

    Free-to-play alternative to 0 Day — no purchase or trial window. Shares Action and Indie with 0 Day.

    Iron Snout is a fast, colorful and brutal fighting game in which you will be helping a piglet fight for its life against hordes of wolves.

    2016ActionIndieFree To PlayFreeDeck PlayableFree to playSimilar games →
  3. 3
    Star Fetchers — Steam game cover

    Star Fetchers

    Free-to-play alternative to 0 Day — no purchase or trial window. Shares Action and Indie with 0 Day.

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

    2020ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  4. 4
    The Lab — Steam game cover

    The Lab

    Free-to-play alternative to 0 Day — 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 →
  5. 5
    Epic Battle Fantasy 3 — Steam game cover

    Epic Battle Fantasy 3

    Free-to-play alternative to 0 Day — no purchase or trial window. Shares Indie and Adventure with 0 Day.

    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 →
  6. 6
    The Riftbreaker: Prologue — Steam game cover

    The Riftbreaker: Prologue

    Free-to-play alternative to 0 Day — no purchase or trial window. Shares Action and Strategy with 0 Day.

    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 →
  7. 7
    The Last Sovereign — Steam game cover

    The Last Sovereign

    Free-to-play alternative to 0 Day — no purchase or trial window. Shares Strategy and Indie with 0 Day.

    Explore a world torn between armies of lust and purity in which everything is more complex than it seems, deciding the fate of nations through might, politics, and finance. Every decision matters in an intricate saga that tracks thousands of variables.

    2025StrategyIndieAdventureFreeDeck VerifiedFree to playSimilar games →
  8. 8
    Unturned — Steam game cover

    Unturned

    Free-to-play alternative to 0 Day — no purchase or trial window. Shares Action and Indie with 0 Day.

    You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living.

    2017ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →