start my tankwelcome back!

A little terrarium that lives on your computer, or in your pocket, and grows over time. Shrimp are its first residents, with more critters coming soon. Draw doodles to fill up the tank, build tube rides for your pets, and send a friend a shrimp carrying a note.

You tend to your tank in any browser, and it syncs to your computer automatically: download the app.

Let us know what critters we should add next!

Yes! Desk Tank is free, and everyone can play. If you love us, you can consider supporting us. We rely on players who support us to keep it running.

No! Open your tank and start playing right away. Save it with your email whenever you like. An account keeps your tank safe and lets you play it on all your devices. You'll need one to sync your tank to the desktop app.

Pick one of your shrimp, write a note, and send it to a friend. Once they open it, the shrimp moves into their tank, note and all, and it carries your words for as long as they keep it. With the desktop app, it walks along just above their Docktaskbar, and hovering it shows your note.

Doodles are drawings you make in Desk Tank! Desk Tank turns them into items you can place, ready for your critters to play with. Every doodle has to be drawn by a human, so no AI art.

We love sharing doodles and seeing everyone else's. Every week there's a new drawing challenge, and you can send your friends doodles that show up right in their tanks.

Desk Tank's creatures are digital lifeforms, and each one carries a DNA string that it passes down to its babies. Half comes from each parent, so every shrimp joins a family tree that never stops growing.

Drag one grown-up onto another and they pair. When the eggs are ready you pick one of four babies to keep and name. Your first few clutches hatch in minutes, and after that eggs take eight hours. Babies grow by eating and look like their parents, with the odd surprise. Some are named breeds: see them all in breeds.

A grown-up that hasn't had babies for three days fades up into the ether above your tank. You can bring it back any time.

Nothing that identifies you unless you give us your email, and nothing outside Desk Tank. The data we collect is there to make Desk Tank better. For example, the app checks your screen and Docktaskbar size so the shrimp fits, and the website looks at your device type so it offers the right download. Read the privacy page.

Not yet! Desk Tank is made by a few people and shaped by a community of shrimp keepers. We're building it in the open, and new things land every week. Some of the best features came from players asking for them. See what's new on the releases page, or join the Discord and r/desktank to help decide what's next.