GCompris

Home: https://gcompris.net/index-en.html
State: mature
Download: https://gcompris.net/downloads-en.html, https://f-droid.org/de/packages/net.gcompris.full/
Platform: Windows, Linux, macOS, Android
Keyword: educational, content open (?), for kids
Code repository: https://invent.kde.org/education/gcompris.git, https://gitlab.gnome.org/Archive/gcompris.git @archive
Code language: C, Python
Code license: GPL-3.0
Code dependency: GTK
Assets license: CC-BY-SA, GPL-3.0

Educational software suite offering numerous activities for children aged 2 to 10. Partly commercial.

Building