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Darwin's Aquarium

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  1. Steam2.0 · 560 reviews
    $14.99View Offer

Trailers & screenshots

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About Darwin's Aquarium

Darwin's Aquarium is a real-time fish-breeding simulator. You build a tank, train and breed fish, and develop your breeding capabilities and grounds to unlock more valuable fish.

Train and breed fish

Fish can hunt, flee and cooperate. Some may learn to farm algae, while others may bait less harmful fish. Species can evolve new features, so you select fish carefully and breed the fittest to compete against other fish.

Building and mutation

The game includes a building system for your room and house, a complex mutation system and an AI back end for training fish. Your fish can cooperate with other players or compete against them.

Frequently asked questions

Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.

Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.

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