By now you’ve heard, WOW is going free to play (at least the first twenty levels..). Love it or hate it, World of Warcraft was (and still is) undoubtedly the most popular MMO in history. World of Warcraft was so popular at one point that it boasted an insane 12 million subscribers. That’s 12 million people paying a MONTHLY fee of $15.00. Blizzard and Activison were making so much money that they could probably feed a hungry 3rd world nation sloppy joes on a regular basis (yum).