> Scratch is the world’s largest coding community for children and a coding language with a simple visual interface that allows young people to create digital stories, games, and animations. Scratch is designed, developed, and moderated by the Scratch Foundation, a nonprofit organization. [2]
1: https://scratch.mit.edu/ 2: https://scratch.mit.edu/about
Some of the games in the hacking section might be kid friendly? 7 Billion Humans comes to mind, especially.