Code Kingdoms
Code Kingdoms is targeted towards six- to 13-year olds and looks very much like your everyday puzzle adventure game. Choose an animal, walk around a kingdom saving animals through puzzles. The difference is most of the puzzles require kids to use code elements to solve the puzzles. At first this is through dragging-and-dropping code snippets, but as they progress, kids will be typing in code themselves.
Besides teaching actual JavaScript through play, Code Kingdoms also helps kids develop problem-solving skills and the encouragement to keep pushing on when they're faced with a challenge in the game-much like programmers often have to push through challenging walls.