CodeCombat - Learn programming with a multiplayer live coding strategy game.
Tynker - Game Worlds for Kids to Learn Programming
Robocode - Robocode is a programming game where the goal is to code a robot battle tank to compete against...
LightBot - Coding made Kid-Friendly
StackHive - Design, develop or publish websites right from your browser
Colobot Gold - Colobot Gold is modified version of the original https://alternativeto.