Interesting game, looking forward to where this is going.
A word about the MC: I don't like him much. MC's tend to fall into one of two extremes: total asshole or total saint. MC falls in the latter category, wich is fine I guess, I just wish there was more flavour to him. The most important person in his live dies, he is sad for like a day and then goes on to be a saint again. No lashing out, no beeing pissed, not much reaction at all. I'm not saying make him a dick, I'm saying give more personality than just him beeing human equivalent of a golden retriever.
Edit: The main menu has the right idea. Why would you include a quit game button? Nobody should ever quit your game anyhow.