The Code Breaker
A downloadable game for Windows
The Code Breaker is a puzzle/riddle game that has some drag-and-drop programming features that involve the Main Levels of the game.
It also has some riddles that you can try and solve at the Training Missions.
The executable file is a stand-alone executable. Just double click and play! Other files are not required.
The source code is a game maker file. Game maker 8 to be exact.