IMHO.

Single-player games like blackhole simulator

Below are 10 single-player Steam games similar to blackhole simulator, 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 blackhole simulator page.

Ranked picks

  1. 1
    Idle Factory — Steam game cover

    Idle Factory

    Single-player alternative to blackhole simulator — playable solo, no multiplayer required. Shares Casual with blackhole simulator.

    Idle can also build your industrial empire.

    2022IndieSimulationCasual4.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Androsystem Idle — Steam game cover

    Androsystem Idle

    Single-player alternative to blackhole simulator — playable solo, no multiplayer required. Shares Casual with blackhole simulator.

    Produce Androids and create a Fleet that will help you conquer new planets. Mine valuable minerals that will further increase your production capacity.

    2024IndieSimulationCasual1.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    AsteroIdle — Steam game cover

    AsteroIdle

    Single-player alternative to blackhole simulator — playable solo, no multiplayer required. Shares Casual with blackhole simulator.

    An asteroid mining based idle game. Travel in space and discover.

    2022StrategyIndieCasual2.99 USDSingle-playerSimilar games →
  4. 4
    Idle Roboto — Steam game cover

    Idle Roboto

    Single-player alternative to blackhole simulator — playable solo, no multiplayer required. Shares Casual with blackhole simulator.

    Build levels to collect scrap metal. Unlock more blocks with different purposes! New robots with different reactions to them!

    2021StrategyIndieCasual2.99 USDSingle-playerSimilar games →
  5. 5
    Deep Space Cache — Steam game cover

    Deep Space Cache

    Single-player alternative to blackhole simulator — playable solo, no multiplayer required. Shares Casual with blackhole simulator.

    Deep Space Cache is a short & simple semi-idle bullet heaven incremental asteroid miner game.

    2024StrategyIndieCasual0.99 USDDeck VerifiedSingle-playerSimilar games →
  6. 6
    Universe Horizon — Steam game cover

    Universe Horizon

    Single-player alternative to blackhole simulator — playable solo, no multiplayer required.

    An idle incremental game where you decide to travel across the whole Universe. Embark on this journey in your little ship and get as far away as possible from Earth, gathering resources and upgrading your spaceship along the way.

    2025StrategyIndieAdventure2.99 USDSingle-playerSimilar games →
  7. 7
    Astrodle — Steam game cover

    Astrodle

    Single-player alternative to blackhole simulator — playable solo, no multiplayer required. Shares Casual with blackhole simulator.

    Ready for some chill time in space? Astrodle has you covered. Watch the numbers soar as you upgrade your ship and travel the stars. Oh, and you might just become a god.

    2024IndieCasual5.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Rock Crusher — Steam game cover

    Rock Crusher

    Single-player alternative to blackhole simulator — playable solo, no multiplayer required.

    Rock Crusher is an incremental game with a massive skill tree. Control a little rock-crushing machine stranded on a mysterious planet. Crush rocks, collect materials, evolve through upgrades, uncover the planet’s secrets - and maybe, just maybe, find a way to escape.

    2025ActionStrategyIndie4.89 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Doodle TD — Steam game cover

    Doodle TD

    Single-player alternative to blackhole simulator — playable solo, no multiplayer required. Shares Casual with blackhole simulator.

    Tower Defense game with grey scale artwork. Upgrades and unique artwork. Was inspired from dreams by lunatic (co-creator) had about a tower defense game with old school graphics. Unique art choices and a very familiar feel to retro video games.

    2023StrategyCasual0.99 USDSingle-playerSimilar games →
  10. 10
    Doodle TD 2 — Steam game cover

    Doodle TD 2

    Single-player alternative to blackhole simulator — playable solo, no multiplayer required. Shares Casual with blackhole simulator.

    Doodle TD Is back and better than before, Place and smack enemies down with force in this brand new tower defense game. We added color from the original game as the evil mastermind has colored the world of doodle land.

    2024ActionStrategyCasual0.99 USDSingle-playerSimilar games →