I consider Kerbal Space Program to be the most rewarding game I have ever played. Going into this page I was already somewhat familiar with many of the concepts

I consider Kerbal Space Program to be the most rewarding game I have ever played. Going into this page I was already somewhat familiar with many of the concepts it presented because I had encountered them during gameplay. However, having the ability to modify parameters was very helpful for visualizing different kinds of gravity assists. The game does not provide a way to do this, so it augments my understanding massively. I agree that these interactive learning materials are incredibly promising towards actually understanding what is being presented. In other words, this is how I actually grok the concept.