A personal aquatic ecosystem where you manage bacteria, algae, and tiny crustaceans in a pixel-art jar.
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It simulates a balanced ecosystem: algae produce oxygen, daphnia eat algae, fish eat daphnia, and bacteria clean up.
The pixel art style combined with the complex underlying simulation makes it deeply satisfying to watch.
You can leave it running in a background tab and check back days later to see how your life forms have evolved.