Garith

Home: https://www.thregr.org/~wavexx/software/garith/
Inspiration: arithmetic, TuxMath
State: mature, inactive since 2013
Keyword: educational, content open, for kids
Code repository: https://gitlab.com/wavexx/garith.git, https://github.com/wavexx/garith.git (archived)
Code language: C++
Code license: LGPL-2.1
Code dependency: GLUT
Assets license: LGPL
Developer: Yuri D'Elia

Math game.

Building