I wanted to give the idea of implementing rain in the game, it could be raindrops falling on the game screen and a background sound to complement, I think it would be cool and not too difficult to do.
Is it possible you implement climates in the game? I think it would not be difficult , like, rain and snow ( already have land of snow) would make some visual effect on the screen , and sound made
I created a unified installer that brings all that is necessary: TSO ,XNA, OpenAll... :)
https://drive.google.com/file/d/0BydI0bCEVzzYSHk4SWNpTG85TnM/view?usp=sharing