IMHO.

Free games like Days of Heroes: D-Day

Below are 8 free-to-play Steam games similar to Days of Heroes: D-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 Days of Heroes: D-Day page.

Ranked picks

  1. 1
    The Lab — Steam game cover

    The Lab

    Free-to-play alternative to Days of Heroes: D-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 →
  2. 2
    DCS World Steam Edition — Steam game cover

    DCS World Steam Edition

    Free-to-play alternative to Days of Heroes: D-Day — no purchase or trial window.

    Feel the excitement of flying the Su-25T "Frogfoot" attack jet and the TF-51D "Mustang" in the free-to-play Digital Combat Simulator World!

    2013SimulationFree To PlayFreeDeck PlayableFree to playSimilar games →
  3. 3
    One-armed robber — Steam game cover

    One-armed robber

    Free-to-play alternative to Days of Heroes: D-Day — no purchase or trial window. Shares Action with Days of Heroes: D-Day.

    One-armed robber is a chaotic first-person heist game that centers around a uniquely challenging premise. Players take the role of a determined robber equipped with only one arm, tasked with pulling off daring heists on banks, shops, and various establishments.

    2023ActionStrategyIndieFreeDeck PlayableFree to playSimilar games →
  4. 4
    Banana Shooter — Steam game cover

    Banana Shooter

    Free-to-play alternative to Days of Heroes: D-Day — no purchase or trial window. Shares Action with Days of Heroes: D-Day.

    Dave is the banana man who is keep shooting enemies and get their banana,and use some cool mechanic such as dash,double jump,grapple hook and rocket jump.If you are finding fast paced shooter game,this is what you need

    2022ActionIndieFree To PlayFreeDeck PlayableFree to playSimilar games →
  5. 5
    Knightfall: A Daring Journey — Steam game cover

    Knightfall: A Daring Journey

    Free-to-play alternative to Days of Heroes: D-Day — no purchase or trial window. Shares Action with Days of Heroes: D-Day.

    Two knights, a strong bond, and a long journey. Take up the race for the rose, ride from town to town and take shelter before nightfall by any means necessary! If your bond is strong and your horse drifts well, you can be the recipient of the fabled rose. Luckily you brought guns!

    2022ActionIndieFree To PlayFreeDeck PlayableFree to playSimilar games →
  6. 6
    Propagation VR — Steam game cover

    Propagation VR

    Free-to-play alternative to Days of Heroes: D-Day — no purchase or trial window. Shares Action with Days of Heroes: D-Day.

    Combining survival horror and static wave shooting, Propagation VR will get your adrenaline pumping as you try to survive a zombie apocalypse. Armed only with your guns and your fists, fight off terrifying zombies and other multi-species mutants. Will you get out alive?

    2020ActionFreeFree to playSimilar games →
  7. 7
    Wolfenstein: Enemy Territory — Steam game cover

    Wolfenstein: Enemy Territory

    Free-to-play alternative to Days of Heroes: D-Day — no purchase or trial window. Shares Action with Days of Heroes: D-Day.

    Wolfenstein®: Enemy Territory is a free-to-play, objective-based multiplayer World War 2 first-person shooter. Featuring up to 32 players, choose either the Axis or Allies, as you fight across six maps based on real-world battle locations.

    2022ActionFreeDeck PlayableFree to playSimilar games →
  8. 8
    Darkenstein 3D — Steam game cover

    Darkenstein 3D

    Free-to-play alternative to Days of Heroes: D-Day — no purchase or trial window. Shares Action with Days of Heroes: D-Day.

    A retro shooter inspired by classics like Wolfenstein and Doom. Think of it as a tribute, a love letter to the games that defined a generation, with a few modern touches of my own. It’s tough, fast, and demands skill, just the way those old-school shooters did.

    2025ActionAdventureFreeFree to playSimilar games →