Copyleft Games
https://gci.copyleftgames.org/Copyleft Games develops tools, libraries, and game engines
We believe that people learn best while having fun. Many of us learned math, physics, and program code by making and modding video games.
Our software has been used at home and in classrooms around the world for over a decade by students of all ages and experience levels, from a third grade class learning Python as their first language to college students writing code for calculating realtime buoyancy and fluid dynamics.
Copyleft licensing further helps people learn since the source code for the entirety of the game and its mods are always open. Every part of our stack is therefor an educational resource.
Primary Open Source License: GNU General Public License version 3.0 (GPL-3.0)