Current Version: Alpha.

Fish Tank Simulator is a cozy idle aquarium game about making smart choices, and building efficient setups.

You buy fish packs, place fish into detailed tanks, and decide how to grow your setup. Play actively by feeding low rarity fast-growing fish with upgraded food, or optimize your tanks by picking out low rarity fish until the tank consists of only high rarity fish, do that with multiple tanks and let fully grown fish generate income while you’re gone. Whether you check in often or let things run, progress continues.

Progression and Regions

As you earn money, you’ll improve each area by constructing key buildings. These projects reshape the environment, help fill your fish collection, and prepare you to move on to new regions with new conditions and species.

The journey begins in a quiet forest, where your first long-term goal is building a communication tower. Completing it marks your readiness to move forward, with future updates unlocking new regions, including a harsh frozen biome home to species that can’t survive elsewhere.

More will be described as development continues.