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Games like Space Travel Idle

Space Travel Idle leans idle. These games share the most with it, and each one says why.

Only
  1. Stuck In Time cover art

    Stuck In Time

    Also optimization, exploration · Same active/idle balance (leans idle)

    Plan action lists for each time loop, let them run, and refine routes through a pixel-art world as you work toward escape.

    85% steam
    has ending
    70% idle
  2. Cosmic Forge cover art

    Cosmic ForgeUpdated

    Also space, exploration, science

    Start from hydrogen atoms, research tech, mine asteroids for antimatter and find megastructures as you conquer the star map and head home.

    3.0★ galaxy
    has ending
    25% idle
  3. Vanguard Galaxy cover art

    Vanguard Galaxy

    Also space, exploration

    Fight, mine, salvage and trade across a procedural galaxy, played full screen or docked on your desktop with an autopilot that can run things.

    90% steam
    50% idle
  4. Unnamed Space Idle cover art

    Unnamed Space Idle

    Also space · Same active/idle balance (leans idle)

    A ship, a sector map and a tidy prestige loop. Quietly one of Galaxy's most-played games.

    92% steam
    4.5★ galaxy
    70% idle
  5. Cell to Singularity cover art

    Cell to Singularity

    Also science · Same active/idle balance (leans idle)

    Evolve life from a single cell to a technological singularity, with a surprising amount of real science in the tooltips.

    89% steam
    70% idle
  6. THE LONGING cover art

    THE LONGING

    Also exploration · Same active/idle balance (leans idle)

    Wait 400 real days in an underground palace for a king to wake. The clock runs while the game is closed, so you can explore or simply leave.

    92% steam
    has ending
    70% idle
  7. Angel Legion cover art

    Angel Legion

    Also space · Same active/idle balance (leans idle)

    A 3D hero-collection RPG where resources build up automatically. Recruit and dress a roster of angels across three warring space factions.

    85% steam
    70% idle
  8. Space industrial empire cover art

    Space industrial empire

    Also space · Same active/idle balance (leans idle)

    Lay out flat conveyor lines for mining, smelting and research, then build warships to take other planets.

    87% steam
    70% idle
  9. Mr.Mine cover art

    Mr.Mine

    Also exploration · Same active/idle balance (leans idle)

    Dig a mine deeper and deeper, hire miners, discover what lives at the bottom.

    92% steam
    75% idle
  10. Transport Defender cover art

    Transport Defender

    Also space · Same active/idle balance (leans idle)

    Guard a cargo ship from boarding waves with a turret and auto weapons, scripting auto upgrades and auto ascension for long idle runs.

    80% steam
    70% idle
  11. How To Grow a Black Hole cover art

    How To Grow a Black Hole

    Also space, science

    Feed a black hole to gain mass, research automation and avoid collapses, comparing its size against real objects and global leaderboards.

    67% steam
  12. Idle Space Raider cover art

    Idle Space Raider

    Also space · Same active/idle balance (leans idle)

    Patrol space as a station guard, mining ore and fighting in raids, then upgrade your ship and station. Toggles automate most systems, and a stargate opens a second reset tier.

    74% steam
    70% idle
  13. NG Space Company cover art

    NG Space Company

    Also space, exploration

    A space incremental about mining resources, exploring between stars and conquering systems.

    4.2★ galaxy
  14. Creature Card Idle cover art

    Creature Card Idle

    Also optimization · Same active/idle balance (leans idle)

    Place cards on a grid so they produce resources, then spend those on booster packs. Each expansion is its own small idle game, and later ones add battles.

    71% steam
    70% idle
  15. Industry Idle cover art

    Industry IdleDormant

    Also optimization · Same active/idle balance (leans idle)

    Build factories on generated maps, optimize production chains, trade on a player market and prestige for new maps, with offline earnings tied to company value.

    77% steam
    75% idle
  16. Idle Expanse cover art

    Idle Expanse

    Also space, exploration

    Run a greedy corporation that equips mercenary squads and sends them to 64 alien planets for resources, setting their tactics and researching a time skip.

    55% steam
  17. Space Colonizers Idle Clicker cover art

    Space Colonizers Idle ClickerUpdated

    Also space, exploration

    Upgrade a spacecraft to find new planets for humanity, using black holes as shortcuts and meeting alien species along the way.

    45% steam
  18. Black Hole Shrinker cover art

    Black Hole Shrinker

    Also space, science

    Shrink a black hole through Hawking radiation to collect quarks.

    3.7★ galaxy
  19. Darkzone: Idle RPG cover art

    Darkzone: Idle RPG

    Also space · Same active/idle balance (leans idle)

    A multiplayer idle RPG about space bounty hunters with auto turn-based combat, deep gear crafting, guilds, seasons, and live co-op boss raids.

    62% steam
    70% idle
  20. Galaxy Idle Clicker cover art

    Galaxy Idle Clicker

    Also space · Same active/idle balance (leans idle)

    Upgrade a spaceship to conquer over 5,000 areas across seven universes, with four reset systems, four minigames and offline farming.

    74% steam
    75% idle
  21. Void Salvage cover art

    Void SalvageUpdated

    Also space, exploration

    An FTL-like ship sim with pick-one-of-three rewards and choice encounters, where you combine SYSTEM parts and fit SOCKET INSERTs.

    3.1★ galaxy
  22. Mycelium cover art

    MyceliumUpdated

    Also optimization, exploration

    Spread a fungal network through forest soil, weighing nearby poor ground against distant rich deposits since resources must travel back to the core.

  23. TerraGenesis - Space Settlers cover art

    TerraGenesis - Space SettlersUpdated

    Also space, science

    Terraform real and fictional planets using NASA data, building habitats and choosing among four factions.

  24. Reactor Idle Tycoon cover art

    Reactor Idle TycoonDormant

    Also optimization, science

    Build power plants from wind turbines up to fusion reactors, balancing heat and electricity to keep everything under control while selling power.