A game that allows players to play with software development is an excellent method of teaching coding concepts and programming like loops and conditional statements. Games that accomplish this include Zachtronics Shenzhen I/O which puts players in the shoes of dissatisfied engineers working for an ordinary chip manufacturer and have to build computer chips by hand. The circuits they have to design become more difficult, starting with making the lights blink in a specific pattern.
The interface of the game looks very similar to tools used by developers in browsers and also teaches scripting. Another excellent example is Screeps which is a game that combines JavaScript programming with massively multiplayer online games to create self-sustaining colonies. Both games do a wonderful job of teaching fundamental concepts while gradually introduce new ones.