IMHO.

Single-player games like Terraformers: First Steps on Mars

Below are 10 single-player Steam games similar to Terraformers: First Steps on Mars, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Terraformers: First Steps on Mars page.

Ranked picks

  1. 1
    Surviving Mars — Steam game cover

    Surviving Mars

    Single-player alternative to Terraformers: First Steps on Mars — playable solo, no multiplayer required. Shares Strategy and Simulation with Terraformers: First Steps on Mars.

    There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you.

    2018StrategySimulationSingle-playerSimilar games →
  2. 2
    Citizens: On Mars — Steam game cover

    Citizens: On Mars

    Single-player alternative to Terraformers: First Steps on Mars — playable solo, no multiplayer required. Shares Strategy with Terraformers: First Steps on Mars.

    Experience the ultimate turn-based colony building game in Citizens: On Mars! As the leader of a fledgling Martian settlement, your mission is to develop a thriving colony amidst the harsh and unforgiving environment of the Red Planet.

    2023Strategy4.99 USDSingle-playerSimilar games →
  3. 3
    Mars Horizon 2: The Search for Life — Steam game cover

    Mars Horizon 2: The Search for Life

    Single-player alternative to Terraformers: First Steps on Mars — playable solo, no multiplayer required. Shares Strategy and Simulation with Terraformers: First Steps on Mars.

    Lead your space agency in The Search for Life in this authentic strategy simulation game. Investigate the solar system and collect evidence of life. Manage base building, rocket designing, launches, and mission planning to Mars and beyond, leading the way in the future of space exploration.

    StrategySimulationSingle-playerSimilar games →
  4. 4
    Reshaping Mars — Steam game cover

    Reshaping Mars

    Single-player alternative to Terraformers: First Steps on Mars — playable solo, no multiplayer required. Shares Strategy and Simulation with Terraformers: First Steps on Mars.

    「Reshaping Mars」is a colony simulation game on Mars, you will start by gathering resources, storing food, accepting immigrants, and building a better colony together. Develop powerful technologies for Mars Reshaping, make Mars great agai..sorry, just great. Don't forget to make the residents happy.

    2023StrategyIndieSimulation9.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Stellar Settlers: Space Base Builder — Steam game cover

    Stellar Settlers: Space Base Builder

    Single-player alternative to Terraformers: First Steps on Mars — playable solo, no multiplayer required. Shares Strategy and Simulation with Terraformers: First Steps on Mars.

    Stellar Settlers is a chill space base/city builder and colony sim game. With unique vertical and horizontal base-building gameplay, settle on 10 hostile alien planets and build your own thriving colony. Get enough materials to build a physics-based Spaceship and try to escape from disasters.

    2025StrategyIndieSimulation4.79 USDSingle-playerSimilar games →
  6. 6
    The Final Earth 2 — Steam game cover

    The Final Earth 2

    Single-player alternative to Terraformers: First Steps on Mars — playable solo, no multiplayer required. Shares Strategy and Simulation with Terraformers: First Steps on Mars.

    The Final Earth 2 is a vertical sci-fi city builder. Earth is unlivable, so you decide to create a space colony. Gather resources, then build and research your way to a better future! Grow your city from an exploration ship to a huge metropolis, full of advanced technology. What will you build?

    2022StrategyIndieSimulation9.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Industries of Titan — Steam game cover

    Industries of Titan

    Single-player alternative to Terraformers: First Steps on Mars — playable solo, no multiplayer required. Shares Strategy and Simulation with Terraformers: First Steps on Mars.

    Create a sprawling industrial city. Compete with other rival corporations on Titan for resources, territory, and power. Seek victory via technology, influence, warfare, or the wealth extracted from your citizens. Stake your claim to the Industries of Titan in this innovative sim/strategy game!

    2023ActionStrategyIndie29.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Farlanders — Steam game cover

    Farlanders

    Single-player alternative to Terraformers: First Steps on Mars — playable solo, no multiplayer required. Shares Strategy and Simulation with Terraformers: First Steps on Mars.

    Terraform, strategize, and construct a Martian colony in this retro-inspired turn-based city builder. Create a comfortable living for your citizens, research alien artifacts, and uncover the secrets of the Red Planet.

    2023StrategyIndieSimulation14.99 USDDeck VerifiedSingle-playerSimilar games →
  9. 9
    Terraforming Mars — Steam game cover

    Terraforming Mars

    Single-player alternative to Terraformers: First Steps on Mars — playable solo, no multiplayer required. Shares Strategy with Terraformers: First Steps on Mars.

    The taming of the Red Planet has begun! Corporations are competing to transform Mars into a habitable planet by spending vast resources and using innovative technology to raise temperature, create a breathable atmosphere, and make oceans of water.

    2018Strategy19.99 USDDeck VerifiedSingle-playerSimilar games →
  10. 10
    Terraformers — Steam game cover

    Terraformers

    Single-player alternative to Terraformers: First Steps on Mars — playable solo, no multiplayer required. Shares Strategy with Terraformers: First Steps on Mars.

    Terraform Mars in this turn-based colony builder and resource management game with roguelike elements. Explore the planet, develop spectacular cities, spread life and turn the Red Planet into a green one!

    2023Strategy19.99 USDDeck VerifiedSingle-playerSimilar games →