IMHO.

Free games like Grimstar: Crystals are the New Oil!

Below are 9 free-to-play Steam games similar to Grimstar: Crystals are the New Oil!, 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 Grimstar: Crystals are the New Oil! page.

Ranked picks

  1. 1
    Counter-Strike:Global Offensive — Steam game cover

    Counter-Strike:Global Offensive

    Free-to-play alternative to Grimstar: Crystals are the New Oil! — no purchase or trial window. Shares Action with Grimstar: Crystals are the New Oil!.

    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 →
  2. 2
    The Lab — Steam game cover

    The Lab

    Free-to-play alternative to Grimstar: Crystals are the New Oil! — 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 →
  3. 3
    93, Kuindzhi — Steam game cover

    93, Kuindzhi

    Free-to-play alternative to Grimstar: Crystals are the New Oil! — no purchase or trial window. Shares Indie with Grimstar: Crystals are the New Oil!.

    Kuindzhi, 93 is an atmospheric first-person narrative vignette about an 18-year-old boy from Donbas. The story takes us to March 2022, when the world changed forever — into a space where the past, fears, and doubts find their voice.

    2026IndieAdventureFree To PlayFreeFree to playSimilar games →
  4. 4
    Electoral Carnage — Steam game cover

    Electoral Carnage

    Free-to-play alternative to Grimstar: Crystals are the New Oil! — no purchase or trial window. Shares Action with Grimstar: Crystals are the New Oil!.

    Electoral Carnage is an absurd 2D fighting game featuring America's most famous (and infamous) politicians. If you don't download it you hate America. Also JFK can assassinate himself. What more do you need to know?

    2026ActionFree To PlayEarly AccessFreeDeck PlayableFree to playSimilar games →
  5. 5
    South Scrimshaw, Part One — Steam game cover

    South Scrimshaw, Part One

    Free-to-play alternative to Grimstar: Crystals are the New Oil! — no purchase or trial window. Shares Indie with Grimstar: Crystals are the New Oil!.

    South Scrimshaw is the story of a newborn whale in a vast alien ocean. It is a richly illustrated experimental visual novel, written in the style of a nature documentary.

    2023IndieCasualFreeDeck PlayableFree to playSimilar games →
  6. 6
    The Riftbreaker: Prologue — Steam game cover

    The Riftbreaker: Prologue

    Free-to-play alternative to Grimstar: Crystals are the New Oil! — no purchase or trial window. Shares Action and Strategy with Grimstar: Crystals are the New Oil!.

    The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.

    2020ActionStrategyIndieFreeDeck PlayableFree to playSimilar games →
  7. 7
    Shape of Dreams: Prologue — Steam game cover

    Shape of Dreams: Prologue

    Free-to-play alternative to Grimstar: Crystals are the New Oil! — no purchase or trial window. Shares Action and Indie with Grimstar: Crystals are the New Oil!.

    《Shape of Dreams: Prologue》is a unique game that blends action roguelite with MOBA-style gameplay. Edit your character's Memories to create your own champion. Face all challenges alone or play with friends in up to 4-player co-op.

    2024ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  8. 8
    Counter-Strike 2 — Steam game cover

    Counter-Strike 2

    Free-to-play alternative to Grimstar: Crystals are the New Oil! — no purchase or trial window. Shares Action with Grimstar: Crystals are the New Oil!.

    For over two decades, Counter-Strike has offered an elite competitive experience, one shaped by millions of players from across the globe. And now the next chapter in the CS story is about to begin. This is Counter-Strike 2.

    2012ActionFree To PlayFreeDeck PlayableFree to playSimilar games →
  9. 9
    Knights vs Aliens — Steam game cover

    Knights vs Aliens

    Free-to-play alternative to Grimstar: Crystals are the New Oil! — no purchase or trial window. Shares Action and Strategy with Grimstar: Crystals are the New Oil!.

    Command knights, aliens, and other historically dubious nations in a free real-time tower conquest game rebuilt from a 2009 iPad original. Grow armies, capture towers, and outmaneuver adaptive AI through 30 campaign levels.

    2026ActionStrategyIndieFreeFree to playSimilar games →