Unravel the secrets of microscopic life!

Colony B is a mobile game developed at McGill University that allows you to contribute to research on microbes. Collect microbes and grow your colony in a fast paced puzzle game. Unlock badges to learn about microbes living inside our body.

The results are used to analyze data from the American Gut project based at University of California San Diego. Play Colony B and become a citizen scientist!

What’s New

Version 2.5.1

Updated language translations and scoring.

Ratings and Reviews

2.6 out of 5
5 Ratings

5 Ratings

Llamazing ,

I have some problems

When I try to circle something I can’t. It never makes a line. Not a single line. Good... EXCEPT I CANNOT PLAY IT!!!!!! Can you fix that?

Grape Soduh ,

Fun and Educational!

Not only does Colony B help me learn about microbes, but it also helps scientists collect data. It’s also super addictive! I highly recommend this app!

pencil sandpaper ,


I got the app and started to play. Great! But then it asks me to make an account. I’m thinking: Oh, okay! Easy! Nope. I made an account and BOOM! The app kicks me out! So I try again. Five times. No such luck! Awesome sounding app, teaching you about bacteria and everything. But terrible app. Hope this gets fixed..

App Privacy

The developer, Diga Design, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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