Scratch - Scratch is the programming language & online community where young people create stories, games, & animations.
Tynker - Game Worlds for Kids to Learn Programming
Blockly - Blockly is a library for building visual programming editors.
RoboGarden - RoboGarden provides a complete, game-based suite that teaches coding from beginner to professional level, starting with block programming and progressing to professional Python and JavaScript programming.
Coin Pusher - Coin Pusher is an Addictive Puzzle game by Coin Unity.
ScratchJr - Coding is the new literacy!