IMHO.

Free games like The Brookhaven Experiment

Below are 8 free-to-play Steam games similar to The Brookhaven Experiment, 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 Brookhaven Experiment page.

Ranked picks

  1. 1
    Ultimate Custom Night — Steam game cover

    Ultimate Custom Night

    Free-to-play alternative to The Brookhaven Experiment — no purchase or trial window. Shares Action and Indie with The Brookhaven Experiment.

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

    2018ActionIndieFree To PlayFreeFree to playSimilar games →
  2. 2
    Indigo Park: Chapter 1 — Steam game cover

    Indigo Park: Chapter 1

    Free-to-play alternative to The Brookhaven Experiment — no purchase or trial window. Shares Action and Indie with The Brookhaven Experiment.

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  3. 3
    Counter-Strike:Global Offensive — Steam game cover

    Counter-Strike:Global Offensive

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

    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
    Dagon: by H. P. Lovecraft — Steam game cover

    Dagon: by H. P. Lovecraft

    Free-to-play alternative to The Brookhaven Experiment — no purchase or trial window. Shares Indie with The Brookhaven Experiment.

    Face unspeakable horrors. Succumb to madness. Welcome to a free daemonic narrative experience inspired by H. P. Lovecraft.

    2021IndieAdventureFree To PlayFreeDeck VerifiedFree to playSimilar games →
  5. 5
    The Lab — Steam game cover

    The Lab

    Free-to-play alternative to The Brookhaven Experiment — 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 →
  6. 6
    Nightmare House: The Original Mod — Steam game cover

    Nightmare House: The Original Mod

    Free-to-play alternative to The Brookhaven Experiment — no purchase or trial window. Shares Action and Indie with The Brookhaven Experiment.

    Wake up, it’s time for the real nightmare to begin. Make your way through a terrorizing house, uncover the secrets of a haunted hospital, fight through hordes of the undead, and try to escape Nightmare House.

    2024ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  7. 7
    Hog Hunter 2021 — Steam game cover

    Hog Hunter 2021

    Free-to-play alternative to The Brookhaven Experiment — no purchase or trial window. Shares Action and Indie with The Brookhaven Experiment.

    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 →
  8. 8
    Nazi Zombies — Steam game cover

    Nazi Zombies

    Free-to-play alternative to The Brookhaven Experiment — no purchase or trial window. Shares Action and Indie with The Brookhaven Experiment.

    Nazi Zombies is a cooperative survival game where players fend off escalating waves of Nazi zombies, earning points by killing zombies and repairing barriers to buy weapons, upgrades, perks, and unlock new map areas to maximize their survival.

    2026ActionIndieFree To PlayFreeFree to playSimilar games →