Tynker - Game Worlds for Kids to Learn Programming
Lichess - The complete chess experience, play and compete in tournaments with friends others around the world.
CodeCombat - Learn programming with a multiplayer live coding strategy game.
Chess.com - Play chess on Chess.
StackHive - Design, develop or publish websites right from your browser
Fritz - Fritz is the world’s most popular chess program, developed by ChessBase, “the world's leading...