20 000 Cogs under the Sea

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! Even the squirrels will help you, if you supply them with oxygen. Upgrade your incredible contraptions to become the ultimate sea tycoon. Features Various mad science 🔬 contra...