IMHO.

Single-player games like That Rocket Game

Below are 9 single-player Steam games similar to That Rocket Game, 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 That Rocket Game page.

Ranked picks

  1. 1
    Fish Lab — Steam game cover

    Fish Lab

    Single-player alternative to That Rocket Game — playable solo, no multiplayer required. Shares Indie and Casual with That Rocket Game.

    A short incremental game where you collect fish for your lab. Synced to music.

    2026ActionIndieCasual5.94 USDSingle-playerSimilar games →
  2. 2
    Orbosis Gloriosis — Steam game cover

    Orbosis Gloriosis

    Single-player alternative to That Rocket Game — playable solo, no multiplayer required. Shares Indie and Casual with That Rocket Game.

    A physics-based incremental game where you split and merge orbs

    2026ActionIndieSimulation4.99 USDSingle-playerSimilar games →
  3. 3
    Trampoline to Tomorrow — Steam game cover

    Trampoline to Tomorrow

    Single-player alternative to That Rocket Game — playable solo, no multiplayer required. Shares Indie and Casual with That Rocket Game.

    One trampoline, one slime, one direction: up. Bounce higher every run, pick cards, grow your upgrade tree and cross Earth's escape line. Then the Moon, Mars, Titan... Seventeen stops, until gravity finally lets go.

    2026IndieCasualSingle-playerSimilar games →
  4. 4
    Monslice — Steam game cover

    Monslice

    Single-player alternative to That Rocket Game — playable solo, no multiplayer required. Shares Indie and Casual with That Rocket Game.

    Monslice is a short incremental game about slicing monsters, collecting resources, expanding your skill tree, and unlocking and buying more monsters!

    2026IndieCasual4.99 USDSingle-playerSimilar games →
  5. 5
    Idle Tides — Steam game cover

    Idle Tides

    Single-player alternative to That Rocket Game — playable solo, no multiplayer required. Shares Indie and Casual with That Rocket Game.

    Idle Tides is an idle incremental where your goal is simple: Catch as many fish as you can. Unlock new boats to automate your fishing, upgrade your fleet, and help the island with this fish overpopulation!

    IndieCasualSingle-playerSimilar games →
  6. 6
    Sunborn — Steam game cover

    Sunborn

    Single-player alternative to That Rocket Game — playable solo, no multiplayer required. Shares Indie and Casual with That Rocket Game.

    A cosmic idler that goes SUPERNOVA. Drag mass into your sun, grow it from spark to stellar and watch every upgrade stack. Linear. Exponential. Then genuinely SUPERMASSIVE.

    2026IndieSimulationFree To PlayFreeSingle-playerSimilar games →
  7. 7
    Reflectory — Steam game cover

    Reflectory

    Single-player alternative to That Rocket Game — playable solo, no multiplayer required. Shares Casual with That Rocket Game.

    An idle incremental game about bouncing balls that lives in the corner of your screen.

    2027SimulationCasualSingle-playerSimilar games →
  8. 8
    Teeny Tidy — Steam game cover

    Teeny Tidy

    Single-player alternative to That Rocket Game — playable solo, no multiplayer required. Shares Indie and Casual with That Rocket Game.

    Teeny Tidy is a desktop idle game you can place on your screen! Oversee a tiny robot keep your room clean while you focus or unwind. Unlock countless upgrades, hats and rooms to personalize your robot and virtual space.

    2025IndieCasual3.99 USDSingle-playerSimilar games →
  9. 9
    That Racecar Game — Steam game cover

    That Racecar Game

    Single-player alternative to That Rocket Game — playable solo, no multiplayer required. Shares Indie with That Rocket Game.

    Casual Racing Experience. Play against friends locally, or against the AI.

    2023IndieRacing0.99 USDSingle-playerSimilar games →