IMHO.

Free games like Outbreak Overlord

Below are 9 free-to-play Steam games similar to Outbreak Overlord, 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 Outbreak Overlord page.

Ranked picks

  1. 1
    Ultimate Custom Night — Steam game cover

    Ultimate Custom Night

    Free-to-play alternative to Outbreak Overlord — no purchase or trial window.

    Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!

    2018ActionIndieFree To PlayFreeFree to playSimilar games →
  2. 2
    STRAFTAT — Steam game cover

    STRAFTAT

    Free-to-play alternative to Outbreak Overlord — no purchase or trial window.

    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 →
  3. 3
    Counter-Strike:Global Offensive — Steam game cover

    Counter-Strike:Global Offensive

    Free-to-play alternative to Outbreak Overlord — no purchase or trial window.

    Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).

    2012ActionFree To PlayFreeDeck PlayableFree to playSimilar games →
  4. 4
    DORONKO WANKO — Steam game cover

    DORONKO WANKO

    Free-to-play alternative to Outbreak Overlord — no purchase or trial window.

    『DORONKO WANKO』 is a DORONKO Action Game. In this game, You can become a cute, innocent Pomeranian, make your master's home messy and dirty. "Will the master be angry with me?" Don't worry. Because you are a sweet doggie.

    2024ActionSimulationFree To PlayFreeFree to playSimilar games →
  5. 5
    Meteor 60 Seconds! — Steam game cover

    Meteor 60 Seconds!

    Free-to-play alternative to Outbreak Overlord — no purchase or trial window.

    Meteor 60 seconds! is a simple, fun, comic-like action game that simulates your life if there were a meteor heading towards Earth and you had 60 seconds to live. Do anything you want to do with your last 60 seconds, even if it's illegal! What about planting an apple tree?

    2018ActionIndieSimulationFreeDeck PlayableFree to playSimilar games →
  6. 6
    Lily's Well — Steam game cover

    Lily's Well

    Free-to-play alternative to Outbreak Overlord — no purchase or trial window.

    It is a rainy night in the Spring of 2005. Lily is left home alone after her Papa put her to bed. She is awoken by a cry for help outside her window. It is coming from the well. Help Lily gather rope to go down the well and save the poor soul trapped down there.

    2022IndieAdventureFree To PlayFreeDeck VerifiedFree to playSimilar games →
  7. 7
    I MAED A GAM3 W1TH Z0MB1ES 1N IT!!!1 — Steam game cover

    I MAED A GAM3 W1TH Z0MB1ES 1N IT!!!1

    Free-to-play alternative to Outbreak Overlord — no purchase or trial window.

    A top down twin stick zombie slaying shooter that you are sure to play again and again!

    2021ActionIndieFree To PlayFreeDeck VerifiedFree to playSimilar games →
  8. 8
    Hog Hunter 2021 — Steam game cover

    Hog Hunter 2021

    Free-to-play alternative to Outbreak Overlord — no purchase or trial window.

    Hog hunter is a short atmospheric game about catching hogs out in the wild, be careful though not everything in the woods is safe...

    2021ActionIndieFree To PlayFreeDeck PlayableFree to playSimilar games →
  9. 9
    War Wind — Steam game cover

    War Wind

    Free-to-play alternative to Outbreak Overlord — no purchase or trial window. Shares Strategy with Outbreak Overlord.

    War Wind is a real-time strategy game that allows you to view an epic battle through the eyes of four unique races, each with its own strengths and weaknesses. The game features 28 ready-to-play scenarios and a story of such compelling depth you won't believe it's just a game.

    2021StrategyFreeFree to playSimilar games →