51 Things Every Game Student Should Know
Holy crap, THIS. This entire document. Read it, it’s funny and true. I nabbed this specific slide because this is something people need to freaking get in their heads. Having to pitch games on the fly in a short amount of time, people tend to do this. They don’t think about the mechanic. They don’t take the time to really nail down just what makes the game fun/compelling. If you’re going into game design take the time to really understand this (and all the other points made of course).