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Games like 20,000 Miles Under the Sea

20,000 Miles Under the Sea mostly idle. These games share the most with it, and each one says why.

Only
  1. Fishing The Abyss cover art

    Fishing The Abyss

    Also ocean, very idle · Same active/idle balance (mostly idle)

    A small robot fishes by itself in a tall window beside your work, leveling up to reach deeper water and stranger catches. Clicking helps but is optional.

    95% steam
    90% idle
  2. Check Back cover art

    Check Back

    Also slow, very idle · Same active/idle balance (mostly idle)

    Built around the title: come back later and there is more. A deliberately slow, very idle game.

    4.3★ galaxy
    90% idle
  3. Intelligent Design: An Evolutionary Sandbox cover art

    Intelligent Design: An Evolutionary Sandbox

    Also slow, very idle · Same active/idle balance (mostly idle)

    Seed a world with plants, herbivores, and carnivores whose genes mutate each generation, then leave it running and return to see what evolved or died out.

    45% steam
    90% idle
  4. Rock Simulator 2 cover art

    Rock Simulator 2

    Also slow, very idle

    Be a rock and watch the world change around you, unlocking over 100 rocks at a deliberately slow pace, alone or with friends.

    93% steam
    70% idle
  5. Cornerpond cover art

    Cornerpond

    Also ocean · Same active/idle balance (mostly idle)

    A fisherman in the corner of your screen catches fish on his own; sell them for rod and bait upgrades and fill a journal of 100+ species.

    97% steam
    90% idle
  6. LurkBait Twitch Fishing cover art

    LurkBait Twitch Fishing

    Also very idle · Same active/idle balance (mostly idle)

    A Twitch overlay where viewers cast lines through chat, points or subs, and the fishing plays out on its own while you stream.

    98% steam
    90% idle
  7. Fish to Dish: Idle Sushi cover art

    Fish to Dish: Idle Sushi

    Also ocean · Same active/idle balance (mostly idle)

    A fishing boat sits along the edge of your desktop reeling in sea life to serve as sushi, while you upgrade rods and bait and fill an aquarium.

    96% steam
    90% idle
  8. Viridi cover art

    Viridi

    Also slow · Same active/idle balance (mostly idle)

    Care for a small pot of succulents that grow in real time. Water them, name them, and keep the window open beside your work.

    92% steam
    90% idle
  9. Rusty's Retirement cover art

    Rusty's Retirement

    Also very idle · Same active/idle balance (mostly idle)

    A tiny robot farm that lives at the edge of your screen while you do other things. Idle in the purest sense.

    97% steam
    15–30h ending
    95% idle
  10. The Dream Globe cover art

    The Dream Globe

    Also very idle · Same active/idle balance (mostly idle)

    A tiny world inside a snow globe runs on its own while you check in to buy upgrades. Discover over 100 gems, crops and foods across dream regions.

    94% steam
    90% idle
  11. Idle Waters cover art

    Idle Waters

    Also ocean · Same active/idle balance (mostly idle)

    Fish from a window at the bottom of your screen, manually or with auto-fishing, to fill a collection of 100 species across 12 biomes and stock your aquarium.

    94% steam
    90% idle
  12. My Little Life cover art

    My Little Life

    Also very idle · Same active/idle balance (mostly idle)

    A small person lives out their life in a strip along the bottom of your screen, working, decorating and chasing dreams while you do other things.

    91% steam
    90% idle
  13. Desktop Fishing cover art

    Desktop FishingDormant

    Also ocean · Same active/idle balance (mostly idle)

    A frog in the corner of your screen fishes while you work, catching 50+ species with shiny variants and unlocking new spots and outfits.

    91% steam
    90% idle
  14. Under the blue horizon cover art

    Under the blue horizon

    Also ocean · Same active/idle balance (mostly idle)

    A small aquarium sits on your screen beside other windows. Feed fish, turn their droppings into currency, and hire crawfish and jellyfish helpers to expand the sea.

    82% steam
    90% idle
  15. PC FISH: Taskbar Aquarium cover art

    PC FISH: Taskbar Aquarium

    Also ocean · Same active/idle balance (mostly idle)

    Raise and breed fish in a desktop aquarium, discover rare traits among 450+ fish and decorations, and trade on the Steam Market.

    78% steam
    90% idle
  16. Idlequarium cover art

    Idlequarium

    Also ocean · Same active/idle balance (mostly idle)

    Keep a customizable fish tank on your desktop, raising and collecting hundreds of species to earn coins for decorations and new fish.

    75% steam
    90% idle
  17. Hero Tale cover art

    Hero Tale

    Also very idle · Same active/idle balance (mostly idle)

    A background auto-battler: a hero fights across a fantasy island while you check in to spend points in a 300-node skill tree and swap loot.

    71% steam
    90% idle
  18. 修炼成仙 cover art

    修炼成仙

    Also very idle · Same active/idle balance (mostly idle)

    A minimal text cultivation game: create a character and it fights, loots, and trains on its own from its first steps toward ascension and rebirth.

    71% steam
    90% idle
  19. Chillquarium cover art

    Chillquarium

    Also ocean

    Buy fish, raise them in real time, and sell them or keep them for ticket income while chasing 156 species and rare color variants.

    93% steam
    70% idle
  20. THE LONGING cover art

    THE LONGING

    Also slow

    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
  21. 挂机神话 cover art

    挂机神话

    Also very idle

    A meme-heavy Chinese cultivation idler about farming procedurally generated gear and characters through an endless tower. Chinese-language store text.

    90% steam
    70% idle
  22. Joyquarium cover art

    Joyquarium

    Also ocean

    Raise fry until they are big enough to sell, keep adults in the tank for steady income, and open packs to unlock 144 species. An auto mode lets the tank run on its own.

    97% steam
    70% idle

  23. Omega Meta ZeroDormant

    Also very idle · Same active/idle balance (mostly idle)

    A zero-player incremental meant to run like a screensaver, watching a number climb to absurd heights in Omega Layers notation.

    85% idle
  24. Settlemoon cover art

    Settlemoon

    Also slow

    Build a side-scrolling fantasy town in real time, posting quests for visiting adventurers and decorating as it grows. It keeps working while the game is closed.

    87% steam
    70% idle