IMHO.

Free games like The Tomorrow War

Below are 8 free-to-play Steam games similar to The Tomorrow War, 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 The Tomorrow War page.

Ranked picks

  1. 1
    The Lab — Steam game cover

    The Lab

    Free-to-play alternative to The Tomorrow War — 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 →
  2. 2
    The Riftbreaker: Prologue — Steam game cover

    The Riftbreaker: Prologue

    Free-to-play alternative to The Tomorrow War — no purchase or trial window. Shares Action and Adventure with The Tomorrow War.

    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 →
  3. 3
    STAR WARS™: The Old Republic™ — Steam game cover

    STAR WARS™: The Old Republic™

    Free-to-play alternative to The Tomorrow War — no purchase or trial window.

    STAR WARS™: The Old Republic™ is a free-to-play MMORPG that puts you at the center of your own story-driven saga. Play as a Jedi, Sith, Bounty Hunter, or one of many other iconic STAR WARS roles in the galaxy far, far away over three thousand years before the classic films.

    2020Massively MultiplayerRPGFree To PlayFreeDeck PlayableFree to playSimilar games →
  4. 4
    PlanetSide 2 — Steam game cover

    PlanetSide 2

    Free-to-play alternative to The Tomorrow War — no purchase or trial window. Shares Action with The Tomorrow War.

    PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale.

    2012ActionMassively MultiplayerFree To PlayFreeDeck PlayableFree to playSimilar games →
  5. 5
    Endless Sky — Steam game cover

    Endless Sky

    Free-to-play alternative to The Tomorrow War — no purchase or trial window. Shares Action and Adventure with The Tomorrow War.

    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 →
  6. 6
    Ocean World: Eden Crafters Prologue — Steam game cover

    Ocean World: Eden Crafters Prologue

    Free-to-play alternative to The Tomorrow War — no purchase or trial window. Shares Adventure and Simulation with The Tomorrow War.

    Survive, craft, and automate in this free prologue set on one of the planets you can transform in Eden Crafters, an open-world game where you play solo or with friends to turn a hostile planet into a habitable haven for humanity.

    2024StrategyIndieAdventureFreeFree to playSimilar games →
  7. 7
    Gatekeeper: Infinity — Steam game cover

    Gatekeeper: Infinity

    Free-to-play alternative to The Tomorrow War — no purchase or trial window. Shares Action and Adventure with The Tomorrow War.

    Prologue version of the game Gatekeeper. Gatekeeper: Infinity is a fast-paced rogue-lite shooter where you'll search for the stolen Heart of the Universe and battle machine enemies! Play solo or join forces with friends in co-op mode.

    2023ActionIndieAdventureFreeDeck VerifiedFree to playSimilar games →
  8. 8
    Orbital Gear — Steam game cover

    Orbital Gear

    Free-to-play alternative to The Tomorrow War — no purchase or trial window. Shares Action and Simulation with The Tomorrow War.

    Orbital Gear is a fast paced sidescroller shooter where you utilize the gravitation of celestial objects to give you momentum through space. Arm your Mech with two of the twelve different weapons and destroy your enemies.

    2014ActionIndieSimulationFreeDeck VerifiedFree to playSimilar games →