If you want to check out the motherlode of other visual programming languages, platforms, etc check out Ivan Reese's Visual Programming Codex.
https://github.com/ivanreese/visual-programming-codex
https://github.com/ivanreese/visual-programming-codex/blob/m...
Although I'm going to have to create a pull request because he doesn't have Flowgorithm on there, which is an excellent tool for teaching the very very first steps of learning to program...
Terrible name, wonderful tool.