It's not exactly what you're looking for, but a friend of mine made http://www.hacker.org/ http://www.hacker.org/ which is a bunch of games that are related to

It's not exactly what you're looking for, but a friend of mine made http://www.hacker.org/ http://www.hacker.org/ which is a bunch of games that are related to hacking plus some games where you have to write programs to play them. (The "challenges" game is pretty close to actually having to hack, with various difficulties.)