We’re continuing to release updates based on player feedback and insights from testing. Add the game to your favorites so you don’t miss future improvements—and experience a modern take on a classic game.
played 6 min in all
InsaneAquarium
Build a thriving aquarium, evolve rare fish, collect coins, and defend your underwater empire from deep-sea monsters.
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hurtsdoughnutCreator
About InsaneAquarium
InsaneAquarium is a paid simulation game made with AI by @hurtsdoughnut, and it plays right here in your browser.
A fresh, modern reimagining of the classic fish-tank survival game: build and customize a living underwater world, raise strange aquatic creatures, collect coins, and protect your tank from unpredictable deep-sea invaders.
In this new model, every fish has unique traits, evolutions, and needs. Breed rare hybrids, unlock biome-specific tanks—from glowing coral reefs to haunted abyssal trenches—and use smart feeders, defenses, and collectible companions to automate parts of your aquarium. Random events like toxic blooms, treasure storms, migrating schools, and boss creatures keep each session different.
Balance your ecosystem, grow your profits, and turn a small glass tank into a thriving ocean empire—before the monsters below the surface wipe it all out.