Spacer is Game about Space (how name says). Basic idea is to teach people something about space, it's mechanics etc.
git clone https://github.com/JanVilimek/Spacer.git
Then you can access spacer throught: Processing
Our issue tracker is available here: http://spacer.vilimek.co/issues
Processing is a flexible software sketchbook and a language for learning how to code within the context of the visual arts. Since 2001, Processing has promoted software literacy within the visual arts and visual literacy within technology. There are tens of thousands of students, artists, designers, researchers, and hobbyists who use Processing for learning and prototyping.
You can download it HERE.