Wallpaper
Sits behind your icons and reacts to the cursor. Pauses itself when a fullscreen game is open.
Windows desktop aquarium
Your desktop, underwater.
A living 3D aquarium that sits quietly behind your windows. Real fish, real water, real calm — for the price of a coffee.
Free to try · Windows 10/11 · no account
Wallpaper Live 3D Four ways to live with it
One tank. Four ways to keep it.
Wallpaper, window, fullscreen, or a small floating tank that follows you. Switch any time — the fish keep swimming.
Desktop window
A frameless window you can park beside your work. Always-on-top is one click away.
Fullscreen
Turn the monitor into a tank. Cursor and interface fade away; the room goes quiet.
Floating
A palm-sized tank that floats above other apps and follows you across virtual desktops.
Made to feel real
The hard part is not the water.
Most desktop aquariums look like a screensaver. We spent the effort where it shows: how the fish move, how they react, and how the light behaves.
Fish that react
Feeding has a pecking order, a delay before the rush, and fish that stop when they are full. Move the cursor close and bold fish come to look; shy ones hide.
Optics that hold up
Water absorption, caustics, depth of field and contact shadows are matched per scene, so the fish reads as being inside the tank — not pasted on top of it.
A workshop, not a settings menu
Swap tanks and scenery, then breed your own Ranchu: body shape, tail, colour patches. Nine skins ship with the free version.
Quiet on your machine
The renderer pauses when the tank is hidden or a fullscreen app is open. On a laptop it sips power; on a desktop it disappears into the background.
Inside the tank
Shot in the app. Not a render farm.
Screenshots from the current preview build.
Simple pricing
Free to live with. One price to keep everything.
The free version is a real aquarium, not a demo. Pay once to unlock every tank, every fish and the full workshop.
Free
$0 forever
A real aquarium, not a demo.
- One finished tank
- Three Ranchu varieties
- Full interaction: feed, touch, follow
- Immersion (fullscreen) mode
- Workshop, read-only
Full version
$5.99 one-time
Everything, unlocked on three devices.
- Every official tank and scenery set
- Every fish species and all nine Ranchu skins
- Full workshop: swap, breed, save presets
- High-resolution asset pack
- Three device activations
- All future content packs from year one
Community
Show your tank. Steal ideas.
The forum is where people post their setups, swap scenery, report bugs and vote on what we build next.
Questions people actually ask
Which versions of Windows are supported?
Windows 10 and Windows 11, 64-bit. The preview build needs a GPU with DirectX 11 support and about 300 MB of disk space.
Will it slow down games or video calls?
The tank pauses automatically when a fullscreen application is in the foreground, and it renders at a low frame rate when nothing is moving on screen. Most people never notice it running.
Can I use my own photos or models?
Not yet. The workshop ships with official tanks and scenery; importing your own backgrounds and fish is on the roadmap.
Does it need an internet connection?
No. The aquarium runs entirely offline. You need a connection once to activate a licence, and it can stay offline for up to seven days between checks.
What happens when the trial ends?
Nothing is deleted. Your tank keeps its structure and fish; only paid content falls back to the free scene, and you can unlock it whenever you like.
What is the refund policy?
Fourteen days from purchase, no questions asked. See the refund page for details.
Put a little water on your desktop.
Download the preview, keep the free tank, upgrade when you want more.