This is a great idea. I think that we should make every effort to put in readable code and comment it well so that the kids can easily alter and expand it without too much stress. A nice reusable, portable RPG engine would also be a good idea- easy to work with and understand, naturally. I"m thinking games like Pong, Minesweeper, Pac-Man, Bosconian/Galaga, Adventure, and Moria are good ideas- Pong, Minesweeper, and Galaga for examples of game logic, and Adventure and Moria are there for being expanded and altered (not a whole lot to change about Pong, heh). Perhaps a poll should be held among the community to decide the most modular and simple games?