Thanks! It's true, like calculus this game is more challenging than hard. Once you learn the systems and the ins and outs of the mechanics then it's much easier to be successful.
What I love about gaming and any other form of entertainment is with good design and story telling it can draw you into the worlds the creators build. What makes videos games unique though, is their ability to allow the user to interact with those worlds adding an extra layer of immersion!
Oh yes, that ability to interact with those worlds gives a deeper level of immersion into the game!