Sim Aquarium 3 Apr 2026

Welcome back, aquarists!

It’s been a few months since we announced SIM Aquarium 3 , and the feedback from the community has been overwhelming. You asked for deeper simulation, smarter fish, and less "screensaver" – more "ecosystem." sim aquarium 3

We heard you. Here is what we’ve been building. In SIM Aquarium 2 , fish reacted to the moment. In SIM Aquarium 3 , they react to history . We’ve implemented a lightweight "Genetic Memory" for each fish. If a neon tetra’s parent was born near the filter output, that offspring will instinctively seek out high-flow areas. If a cichlid lost a fight near the ceramic log, its descendants will avoid that zone entirely. Welcome back, aquarists

Late Summer.

opens for Patreon backers on April 10th. Here is what we’ve been building

Stay wet, – The Dev Team Would you rather manage 10 highly intelligent fish with unique names and memories, or 1,000 simple fish in a chaotic, breeding frenzy? Tell us in the comments.