20 000 Cogs under the Sea

What it does

Start your awesome underwater steampunk adventure. Build underwater factory, connect the cogwheels ⚙ for the most efficient work in the idle game 🎮 mode. Tap volcanoes 🌋 for oxygen, drill the seabed and mine ⛏ the ore. Employ octopuses 🐙 and whales 🐳, explore the world with mechanical crabs 🦀, fish 🐟 and submarines!

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  Steampunk Idle Spinner2019 · airapport.itch.io · ▲3

  Mad scientists' workshop

• 
  Steamroll2016 · store.steampowered.com · ▲68

  A steampunk adventure and puzzle game

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  Black Sea2016 · apps.apple.com · ▲55

  Underwater Adventure

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  Aquajet H22018 · kickstarter.com · ▲91

  Fly underwater like a dolphin with this device 🐬🌊

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  I made a tactical map-based WWII submarine simulator (public beta)May 2026 · silentshark.app · ▲125

  I've seen quite a few simming discussions on HN, so thought some of you might like this - I've created a map-centered, tactical submarine simulator and it's been a blast to make. I grew up playing Silent Service II on Atari ST with my dad, then got into Silent Hunter IV in the 2000s, and most recently have been loving the more recent UBoat. In each case, the part I always enjoy the most is the plotting and charting aspect - essentially beating uncertain estimates with geometry. So I decided to see how far I could get making my own sim that focused nearly entirely on that aspect. You listen…

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  Brickbrag – A multiplayer brick-building world in the browser10d ago · brickbrag.com · ▲81

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  SimCity, but with Permits▲922

  A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.

  Life & fun · 2d ago · permit.petercai.com

• IV
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  Life & fun · 14d ago · tanzaniaeducationproject.org

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  Bigwords.page – Turn any screen into a sign. The URL is the app▲728

  Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.

  Life & fun · 15d ago · bigwords.page

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  Guitoro, a virtual guitar you strum with your keyboard▲573

  Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.

  Life & fun · 9d ago · guitoro.com

• 
  See *almost* any carriers phone settings▲432

  Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.

  Life & fun · 13d ago · carrierexplode.com

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  Life & fun · 23d ago · space.bl2.net

• 
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  A fully interactive, realtime and modern browser rendered to TTY

  Life & fun · 2018 · brow.sh

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  Preview Hunt▲921

  🔎Preview and prepare your Product Hunt submission

  Growth · 2018 · previewhunt.com

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  Makers by Product Hunt▲816

  A place for Makers to share, connect, and reach their goals

  Work · 2018

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  Termtosvg – Record terminal sessions as SVG animations▲767

  Record terminal sessions as SVG animations. Contribute to nbedos/termtosvg development by creating an account on GitHub.

  Dev tools · 2018 · github.com

• 
  Slab▲747

  Modern knowledge base & wiki for teams

  Work · 2018 · slab.com

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  Transistor.fm▲644

  Your podcast's hosting and analytics platform 🎙️

  Growth · 2018 · transistor.fm