Credits

Cardopedia is built with free and open work by other people. Thank you!

Font

Fira Sans, designed for Mozilla by Erik Spiekermann and the Carrois type studio, used under the SIL Open Font License 1.1.

Sounds

Sound effects by Kenney, free for anyone to use under CC0.

Pictures and design

The portraits, icons and designs were made by Pablo Fernández Busch with the help of AI tools. They are © 2026 Pablo Fernández Busch, all rights reserved. You’re welcome to play with them here, but please don’t copy, print, share or sell them. If you’d like to use them, please contact us at hello@cardopedia.org.

Fun facts

Every fun fact is checked against Wikipedia, the free encyclopedia, and written in our own words.

Software

• React, which draws the game on the screen, used under the MIT License.
• PostHog, which counts anonymous game events, used under the Apache License 2.0 and MIT License.
• web-vitals, which measures how fast the page loads, used under the Apache License 2.0.

Cardopedia’s own code, texts and pictures: all rights reserved.