IMHO.

Co-op games like Broken War

Below are 7 cooperative Steam games similar to Broken War, ranked by player overlap and content similarity. Every pick supports cooperative play — online co-op, LAN co-op, or shared/split-screen — so you can play with friends right out of the box. imho.run pulls from the same Steam category data Valve uses internally, so "Co-op" here matches what the store labels.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Broken War page.

Ranked picks

  1. 1
    DotStrike — Steam game cover

    DotStrike

    Online Co-op alternative to Broken War — playable with friends. Shares Action and Indie with Broken War.

    DotStrike is a 3D online shooter in which alien invaders in the form of colored spheres fight each other in a seaport. But the aliens are not fighting alone.

    2022ActionIndieMassively Multiplayer7.99 USDCo-opSimilar games →
  2. 2
    Portable Ops — Steam game cover

    Portable Ops

    Online Co-op alternative to Broken War — playable with friends. Shares Action and Indie with Broken War.

    In POPS, every bullet fired pushes you further into the chaos of war. The story-driven campaign throws you into the boots of an elite operative. Fight through a series of intense missions, face overwhelming odds, unexpected betrayals, and brutal firefights where only the strongest survive.

    2023ActionIndieSimulation14.99 USDCo-opSimilar games →
  3. 3
    Famished zombies:  Decisive extermination — Steam game cover

    Famished zombies: Decisive extermination

    Online Co-op alternative to Broken War — playable with friends. Shares Action and Massively Multiplayer with Broken War.

    Famished zombies: Decisive extermination is a Third-Person Survival Shooter based on Apocalypse days up to 3 players local/online co-op. Put your skills to the test to stay alive as long as possible! How long can YOU survive?

    2022ActionMassively Multiplayer2.99 USDCo-opSimilar games →
  4. 4
    Monsters sandbox — Steam game cover

    Monsters sandbox

    Online Co-op alternative to Broken War — playable with friends. Shares Action and Indie with Broken War.

    Multiplayer game with the ability to connect via LAN or Internet. Fight monsters alone or with friends. Find weapons and ammunition during the game or buy them in the store. Different game modes.

    2019ActionIndieMassively Multiplayer0.99 USDCo-opSimilar games →
  5. 5
    Retrograde — Steam game cover

    Retrograde

    Online Co-op alternative to Broken War — playable with friends. Shares Action and Indie with Broken War.

    Overview: Retrograde is a First/Third Person Shooter meant to deliver both the old-school LAN party gaming feel without sacrificing modern gameplay features.

    2021ActionIndieMassively Multiplayer10.99 USDCo-opSimilar games →
  6. 6
    Armored War — Steam game cover

    Armored War

    Online Co-op alternative to Broken War — playable with friends. Shares Action and Indie with Broken War.

    Armored War is a realistic multiplayer tactical first-person shooter set in the realities of modern conflict. Take part in ground battles using a full arsenal of weapons and equipment

    2024ActionIndieAdventure10.99 USDCo-opSimilar games →
  7. 7
    The Great War 3032 — Steam game cover

    The Great War 3032

    Online Co-op alternative to Broken War — playable with friends. Shares Action and Massively Multiplayer with Broken War.

    We are in the year 3032. For some time now, there has been a war between the Northern and Southern nations. Choose a side and enter the battle as an advanced combat robot. Play against friends in multiplayer deathmatch or team up with up to three others in co-op mode.

    2023ActionMassively Multiplayer5.99 USDCo-opSimilar games →