Steam
Darwin's Aquarium
Also known as Darwin's Aquarium, da, darwins aquarium
Breeding and training fish is your hobby. Discover new species - evolve favorable characteristics and train your AI fish brain to behave like real-life fish. Learn about AI and genetics by playing.
Last update
22 May 2026
Players now
0
Latest update
Update history
Browse past updates and patch notes for this game.
20 updates
September 2025
- Update 29-09-2025Added linux build
- Update 25-09-2025New features - Dying fish go limp, turn upside down and turn green. For a small period of time they become food for other fish. Fixes - Fish color system
August 2025
- Update for 08-08-2025Additions New credits screen * Battle bag. The battle bag allows the player to 'freeze' a select number of fish, where they will not die. Later these player will be able to battle using these fish in the Arena.
February 2025
- Misc fixesPatch notes
- Update 02-02-2025Small update in preparation of release of the multiplayer arena.
August 2024
- Update 17-08-2024New splash screen Fixed automatic food flock dispensing Fixed brain loading graphic
- Finally a new release. This release includes major changes to the game. In this release Introduction of Game Speed. Now you can choose the speedup factor the game runs at. This can be particularly handy when breeding th…Patch notes
February 2024
- Update 25/02/2024Adds voice for Darwin in the starter fish selection * Various fixes
January 2024
- Update 13-01-2024Added the "Wise Choice" achievement - Fixed error that occurs from when running game on a new pc.
May 2023
- Update 15-05-2023Manual feed container contains a fixed number of food flocks. - Improve resolution and size of Darwin in messages.
April 2023
- Update 26-04-2023Adds manual feeder - Fixes navigation issue - Adds new quotes
Gallery
In-game media
Achievements
Community progression
Top picks from 43 Steam achievements, sorted by player unlock rates.
- How much is the fish?!Sell your first fish19.0%
- Wise ChoiceChoose your first fish15.8%
- Semiprofessional BreederBreed your first fish7.9%
- Superspecies!A fish survived for more than 10 hours0.0%
- Advanced freediverA fish survived for more than 30 minutes0.0%
- Freediver specialistA fish survived for more than 60 minutes0.0%