Circus Atos
Based in Prague, Czech republic

Release date:

Apple App Store
Google Play
Mac App Store
Windows Store


Regular Price:

Free - Around the Burrow Chapter
$1.99 - Forest Chapter


An interactive educational game for kids and their parents. Send your child on an adventure-filled journey of discovery through nature, its laws and the primary species of plants and animals. This charmingly illustrated world of flora and fauna will captivate you and your children alike as you explore the riches of the natural world together. Just like your favourite children’s books, you will want to return again and again.

Now with an all-new forest chapter.

Little Mouse is off on an expedition to the neighbouring forest to learn some exciting new facts about the woodpecker, squirrel and badger, with many more animals and plants besides. Did you know that an anthill is two-times bigger underground than it is overground? Join the mouse and her curious magnifying glass on this fun-filled forest field day!


Little Mouse's Encyclopedia (formerly Aniscience) is brought to you by a small enthusiastic team who are devoted to bringing quality digital content to kids. Designed by illustrator Tereza Vostradovská and programmed by Michal Berlinger - collaborators since 2014.

Parallels with Under Leaves

It’s true that Little Mouse's Encyclopedia offers some similar elements to our previous project at Circus Atos. Under Leaves was also a student master degree project, made by the same programmer and the same audio designer, with similar graphic techniques. But Little Mouse's Encyclopedia is designed by someone entirely different and is a much bigger project.

Schoolbooks to please

Tereza’s original intention was to create a ‘nice schoolbook’. She was at the time studying at the Academy of Arts, Architecture and Design in Prague and was a little disappointed with the visual quality of Czech science books for schools. So she decided to create her own.

But, since she was studying animation, it wasn’t an option to create a book for her thesis project. That’s when she came up with the idea of a digital version. For her thesis submission, our team released the first chapter of Little Mouse's Encyclopedia as a demo version in summer 2014. Since then, we have been working on new updates, additional languages, content and just some general polishing of the app.

Printed book

After releasing the free demo version, Tereza was overjoyed to receive offers to make a printed book. Knowing how long development of the full game might take, she first focused on the book, and the Czech version of the printed edition was published in October 2016. The launch was a huge success - the initial print run sold so quickly that a second run was needed before Chrismas! And the book was nominated for several prestigious Czech book awards, winning several of them. Tereza is now discussing publishing options in other countries while her focus returns to the development of the digital app.

The future

Our goal is to release two more chapters (pond and garden), each as separate paid updates. Meanwhile, we plan to release several small-feature add ons so that the app can be updated regularly. Currently, Little Mouse's Encyclopedia is only available on mobiles and tablets, but after all four chapters are ready, we will release it on PCs as a single purchasable item.


  • original illustrations for children
  • a playful way to educate
  • intuitive game controls
  • knowledge development, especially for preschoolers and younger schoolchildren
  • more than 50 interactive objects (elements and sounds) in each chapter


Aniscience - Forest trailer 2017 YouTube, .mp4

Aniscience teaser 2015 YouTube, .mp4


download all screenshots & photos as .zip (26MB)

download logo files as .zip (2MB)

About Circus Atos


Circus Atos is a small independent game team based in Prague. We are passionate about creating genuine and imaginative experiences.


Under Leaves - A color-filled hidden object game from the world of animals. Lovingly crafted watercolor illustrations with relaxing audio and gameplay.

Little Mouse's Encyclopedia ("Hravouka") - Our biggest project yet. An interactive educational game for kids. Open up a world of adventure to your child through nature's laws, her plants and animals.

More information
More information on Circus Atos, our logo & relevant media are available here.

Little Mouse's Encyclopedia Credits

Tereza Vostradovská

Michal Berlinger

Oliver Vršanský

Marek Poledna
Sound Designer

Leo Lukáš

presskit() by Rami Ismail (Vlambeer) - also thanks to these fine folks