IMHO.

Single-player games like I Am a Rock

Below are 16 single-player Steam games similar to I Am a Rock, 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 I Am a Rock page.

Ranked picks

  1. 1
    Spacetime Dimension — Steam game cover

    Spacetime Dimension

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Strategy and Indie with I Am a Rock.

    A physics simulation software that simulates planetary motion and objects that obey Newton's laws,build slopes and connect geometries with sticks or springs and observe their trails.Observe the interaction and gravitational energy of planets.

    2022ActionStrategyIndie0.99 USDSingle-playerSimilar games →
  2. 2
    Bird — Steam game cover

    Bird

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Indie and Simulation with I Am a Rock.

    You are a bird, you are free in this small place, but you can't get out, all you can do is fly around.

    2021ActionIndieSimulation0.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    The Deep Diving of FloodDragon — Steam game cover

    The Deep Diving of FloodDragon

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Indie and Adventure with I Am a Rock.

    "Landing on the moon and diving into the deep sea" is a human dream. In this game, you will experience this great journey. Understand the structure of Jiaolong, drive the submarine with the deepest diving depth in the world to dive into the deep sea and explore unknown places.

    2022IndieAdventureSimulation8.99 USDSingle-playerSimilar games →
  4. 4
    Interstellar Turtle Legend — Steam game cover

    Interstellar Turtle Legend

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Strategy and Indie with I Am a Rock.

    The universe is at war, and you're just a bastard. What choice will you make: Survive through the cracks and survive, or be invincible and kill the Quartet? Can you still hold on to your heart?

    2022StrategyIndieSimulation0.99 USDSingle-playerSimilar games →
  5. 5
    Space Wing Cadet — Steam game cover

    Space Wing Cadet

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Simulation with I Am a Rock.

    Join the fleet of the Federation. Fly a space gunship and join your fighter squad to reinforce your fleet against enemy warships and gunships. Protect Federation transporters and Federation facilities from incoming attacks.

    2023ActionSimulation4.99 USDSingle-playerSimilar games →
  6. 6
    A Game About Getting Bigger — Steam game cover

    A Game About Getting Bigger

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Indie and Simulation with I Am a Rock.

    A Game About Getting Bigger is a loot-driven incremental game about feeding a growing black hole. Destroy celestial bodies to make the black hole at the center grow larger and larger.

    2026IndieSimulationCasualSingle-playerSimilar games →
  7. 7
    Tower! Simulator 3 — Steam game cover

    Tower! Simulator 3

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Strategy and Indie with I Am a Rock.

    Immerse yourself in an ultra-realistic environment that brings the challenges of air traffic control right to your fingertips. With brand-new lighting system, intuitive 2D graphical user interface (GUI), improved voice recognition, 9 airports included, Tower! Sim 3 sets a new gold standard.

    2022StrategyIndieSimulation59.99 USDSingle-playerSimilar games →
  8. 8
    Epoch Makers — Steam game cover

    Epoch Makers

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Indie and Adventure with I Am a Rock.

    Step into the past and rebuild history in Epoch Makers, a co-op restoration sim for 1–4 players. Clean, repair, and reconstruct iconic landmarks while tackling tricky obstacle courses that test your coordination, timing, and teamwork.

    2025ActionIndieAdventure2.99 USDSingle-playerSimilar games →
  9. 9
    Black Hole Simulator — Steam game cover

    Black Hole Simulator

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Indie and Adventure with I Am a Rock.

    A simple black hole simulator.

    2021IndieAdventureSimulation0.99 USDSingle-playerSimilar games →
  10. 10
    Tree Bonsai — Steam game cover

    Tree Bonsai

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Indie and Simulation with I Am a Rock.

    An artistic bonsai tree simulation game that follows the life cycle of a plum tree. You can cut branches, add nutrients, and graft while the seasons pass and your tree grows. You can finally fulfill your dreams of a digital bonsai.

    2019IndieSimulationCasual0.49 USDSingle-playerSimilar games →
  11. 11
    Plankton — Steam game cover

    Plankton

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Indie and Simulation with I Am a Rock.

    Minimalist style game : plankton simulation, an electronic pet generated by math codes. Under your care it will slowly grow up and evolve.

    2016IndieSimulationCasual0.49 USDSingle-playerSimilar games →
  12. 12
    Flower Design — Steam game cover

    Flower Design

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Indie and Simulation with I Am a Rock.

    A flower arrangement sandbox game. The shapes and colors are freely adjustable and there is a garden where you can build a house and put flowers in.

    2017IndieSimulationCasual0.49 USDSingle-playerSimilar games →
  13. 13
    Jellyfish — Steam game cover

    Jellyfish

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Indie and Adventure with I Am a Rock.

    A simulation game about the life story of a jellyfish. In this game, I will present the full life cycle of a jellyfish: from an egg to a hydra and finally, after a not very long journey it becomes an adult jellyfish. A work of interactive art to bring the most beautiful of sea creatures to your screen.

    2017ActionIndieAdventure0.49 USDSingle-playerSimilar games →
  14. 14
    Flower Design Ⅱ — Steam game cover

    Flower Design Ⅱ

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Indie and Simulation with I Am a Rock.

    An artistic floral arrangement simulation game, a vase of flowers can track your mood at the moment.

    2020IndieSimulationCasual0.49 USDSingle-playerSimilar games →
  15. 15
    Atom — Steam game cover

    Atom

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Indie and Simulation with I Am a Rock.

    A simple hydrogen atom simulator.

    2021IndieSimulationCasual0.49 USDSingle-playerSimilar games →
  16. 16
    Yin Yang Space — Steam game cover

    Yin Yang Space

    Single-player alternative to I Am a Rock — playable solo, no multiplayer required. Shares Indie and Simulation with I Am a Rock.

    A sandbox FPS game, you can build gardens in the most intuitive and simple way and play with robots.

    2024ActionIndieSimulation0.49 USDSingle-playerSimilar games →