IMHO.

Free games like StellarHub

Below are 8 free-to-play Steam games similar to StellarHub, 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 StellarHub page.

Ranked picks

  1. 1
    The Riftbreaker: Prologue — Steam game cover

    The Riftbreaker: Prologue

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

    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 →
  2. 2
    Fallout Shelter — Steam game cover

    Fallout Shelter

    Free-to-play alternative to StellarHub — no purchase or trial window. Shares Simulation with StellarHub.

    Fallout Shelter puts you in control of a state-of-the-art underground Vault from Vault-Tec. Build the perfect Vault, keep your Dwellers happy, and protect them from the dangers of the Wasteland.

    2017SimulationRPGFree To PlayFreeDeck VerifiedFree to playSimilar games →
  3. 3
    Kingdom: Classic — Steam game cover

    Kingdom: Classic

    Free-to-play alternative to StellarHub — no purchase or trial window. Shares Simulation with StellarHub.

    Kingdom is a 2D sidescrolling strategy/resource management hybrid with a minimalist feel wrapped in a beautiful, modern pixel art aesthetic.

    2015StrategyIndieSimulationFreeDeck VerifiedFree to playSimilar games →
  4. 4
    Upload Labs — Steam game cover

    Upload Labs

    Free-to-play alternative to StellarHub — no purchase or trial window. Shares Simulation with StellarHub.

    A sci-fi management game where you build and optimize your computer's system from the ground up. Connect and configure interconnected nodes to efficiently download, process, and upload files. Manage your setup, solve system challenges, and become the ultimate system architect

    2025SimulationFree To PlayFreeDeck PlayableFree to playSimilar games →
  5. 5
    Ocean World: Eden Crafters Prologue — Steam game cover

    Ocean World: Eden Crafters Prologue

    Free-to-play alternative to StellarHub — no purchase or trial window. Shares Simulation with StellarHub.

    Survive, craft, and automate in this free prologue set on one of the planets you can transform in Eden Crafters, an open-world game where you play solo or with friends to turn a hostile planet into a habitable haven for humanity.

    2024StrategyIndieAdventureFreeFree to playSimilar games →
  6. 6
    Plasma — Steam game cover

    Plasma

    Free-to-play alternative to StellarHub — no purchase or trial window. Shares Simulation with StellarHub.

    Plasma is a pure engineering sandbox. Use advanced visual programming and robotics tools to create anything you can imagine.

    2023IndieSimulationFree To PlayFreeFree to playSimilar games →
  7. 7
    Oxygen: First Breath — Steam game cover

    Oxygen: First Breath

    Free-to-play alternative to StellarHub — no purchase or trial window. Shares Simulation with StellarHub.

    This is a free version of Oxygen, featuring the first 50 game-days. Build your city around the Oxygen Center and ensure your people's survival in a post-apocalyptic future, threatened by crack explosions, deadly winds, droughts and frosts. Lead your people and keep the Oxygen Center running!

    2022StrategyIndieSimulationFreeFree to playSimilar games →
  8. 8
    Sunset Motel: Prologue — Steam game cover

    Sunset Motel: Prologue

    Free-to-play alternative to StellarHub — no purchase or trial window. Shares Simulation with StellarHub.

    Sunset Motel: Prologue is a free motel management game. Ensure customer satisfaction, renovate interiors, design entertainment spaces! Manage your motel in your own style and provide travelers with unforgettable experiences!

    2024ActionSimulationFree To PlayFreeDeck PlayableFree to playSimilar games →