IMHO.

Free games like Project ZETA

Below are 11 free-to-play Steam games similar to Project ZETA, 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 Project ZETA page.

Ranked picks

  1. 1
    Indigo Park: Chapter 1 — Steam game cover

    Indigo Park: Chapter 1

    Free-to-play alternative to Project ZETA — no purchase or trial window. Shares Action with Project ZETA.

    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 →
  2. 2
    STRAFTAT — Steam game cover

    STRAFTAT

    Free-to-play alternative to Project ZETA — no purchase or trial window. Shares Action with Project ZETA.

    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
    The Looker — Steam game cover

    The Looker

    Free-to-play alternative to Project ZETA — no purchase or trial window.

    You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.

    2022IndieFreeDeck PlayableFree to playSimilar games →
  4. 4
    Counter-Strike:Global Offensive — Steam game cover

    Counter-Strike:Global Offensive

    Free-to-play alternative to Project ZETA — no purchase or trial window. Shares Action with Project ZETA.

    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 →
  5. 5
    The Expendabros — Steam game cover

    The Expendabros

    Free-to-play alternative to Project ZETA — no purchase or trial window. Shares Action with Project ZETA.

    The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.

    2014ActionIndieAdventureFreeDeck VerifiedFree to playSimilar games →
  6. 6
    UNBEATABLE [white label] — Steam game cover

    UNBEATABLE [white label]

    Free-to-play alternative to Project ZETA — no purchase or trial window. Shares Action with Project ZETA.

    A young girl learns a song. An exclusive side-story set in the world of D-CELL GAMES' upcoming rhythm-adventure.

    2021ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  7. 7
    The Lab — Steam game cover

    The Lab

    Free-to-play alternative to Project ZETA — 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 →
  8. 8
    Landfall Archives — Steam game cover

    Landfall Archives

    Free-to-play alternative to Project ZETA — no purchase or trial window. Shares Action and Strategy with Project ZETA.

    Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!

    2023ActionStrategyIndieFreeFree to playSimilar games →
  9. 9
    Predecessor — Steam game cover

    Predecessor

    Free-to-play alternative to Project ZETA — no purchase or trial window. Shares Action and Strategy with Project ZETA.

    Inspired by the legacy of Paragon, built with love by the community, and powered by Unreal Engine 5, Predecessor is the ultimate fusion of shooter action and MOBA strategy. Join more than 2,000,000 players and play for FREE now!

    2024ActionStrategyIndieFreeDeck PlayableFree to playSimilar games →
  10. 10
    SMITE 2 — Steam game cover

    SMITE 2

    Free-to-play alternative to Project ZETA — no purchase or trial window. Shares Action and Strategy with Project ZETA.

    Become a god and wage war in SMITE 2, the free-to-play Unreal Engine 5-powered sequel to the legendary third-person action MOBA. If you love challenging competition, intense action, ability-driven combat, rewarding teamwork, or godly mythology, you’ll see why 40+ million players love SMITE.

    2024ActionStrategyAdventureFreeDeck PlayableFree to playSimilar games →
  11. 11
    Paladins® — Steam game cover

    Paladins®

    Free-to-play alternative to Project ZETA — no purchase or trial window. Shares Action and Strategy with Project ZETA.

    Paladins is the ultimate fantasy team-based shooter experience, with over 50 customizable Champions fighting in 5v5 action across a diverse Realm of modes and maps!

    2018ActionStrategyAdventureFreeFree to playSimilar games →