I was kind of expecting that sandcastle to have... some kind of gameplay... challenge of some sort... or something. I just didn't get it. With a game you should start by failing, then build skill as you learn the mechanics, and finally get some satisfaction from conquering it with your skill. Was there even any way to lose that game? Were the ships going to do anything? How come when I finished a level faster I had a higher rebuild cost? The physics artillery concept is always fun, but they completely forgot to make an actual game part around it. Sorry, I didn't get it.