Gamestar Mechanic Captivates
Title: Gamestar Mechanic
Summary: Captivating manga romp teaches kids game design
A tremendous amount of well-documented game design and pedagogical resources come for free, with premium content available to teachers and kids at a deep discount.
It allows for a lot of complexity in games but doesn't go into programming or past a handful of game genres.
This terrific and affordable toolset teaches kids how to design games and shows teachers how to use games to teach.