I played not because I wanted to learn anything, but because I like zombies and Twitter. Many years ago I was very active in a browser-based MMORPG called Urban Dead that still is home to many thousands of zombies and survivors. In fact, over 2 million people have played Urban Dead for at least some period of time. I have also played the Zombie expansion pack for Red Dead Redemption, Undead Nightmare. And, of course, I've seen a few zombie movies; I root for the zombies.