CSSBattle - Play against others in golf with your CSS skills
DevBattles - Find out which framework reigns supreme
Selfless Heroes - Selfless Heroes is a puzzle game that will teach you how to program without you noticing. Take control of a team of heroes who share the same artificial intelligence. It's up to you to create their AI so that they cooperate as best they can.
SuperMakers - An indie game built with no code
CodeCombat - Learn programming with a multiplayer live coding strategy game.
Gamefroot - Gamefroot is the fun way to make games, animations, stories and share them with the world.