Desktank is a cozy idle aquarium that lives right on your desktop.
Inspired by the charm of idle games like Rusty’s Retirement, Desktank brings a peaceful underwater world to your screen — whether you’re working, browsing, or just taking a break.
You decide how you want to experience it:
🖥️ Keep it tucked in the corner like a cute screen companion,
🌊 Or let it float freely across your whole desktop for a full aquarium takeover.
Idle Aquarium Gameplay – Fish swim, grow, and interact while you focus on other things.
Desktop Integration – Always-on-top mode lets your tank float over your workspace.
Customize Your Fish – Change fish colors and styles to create your perfect underwater vibe.
Dynamic Ecosystem – Watch your tank come alive with fish behaviors and interactions.
Peaceful & Non-Intrusive – No stress, no pressure — just ambient chill.
Fully Customizable View – Resize, position, and theme your aquarium to match your mood.
fimsh go swim fish happy also wish there wasn't a cap on the max fish you can have
Desktank is completely FREE to play. You can download and play it without any purchase.
Minimum: Minimum: OS *: Windows 7/8/10 Memory: 4 GB RAM Graphics: 1 GB DirectX: Version 11 Storage: 512 MB available space
Desktank is available on Windows PC.
Desktank has 67% positive reviews from 3 players.
Desktank was released on Jun 3, 2025.
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