Chillquarium

https://store.steampowered.com/app/2276930/Chillquarium/

Release Date: 6 Sep, 2023

Chillquarium is a cozy and relaxing idle game. Buy fish and raise them in real time, then sell them to turn a profit! Customize your aquarium as you progress from a simple starter tank to your dream setup by filling your collection with rare exotic fish and ultra-rare color variants!