With the highly-anticipated Wrath of the Lich King expansion right around the corner, World of Warcraft shows no signs of slowing down. It’s a huge, system-rich world with lots of content and colorful atmosphere that's perhaps a touch too easy to play. Still, you can spend months without seeing half of what it has to offer, and the upcoming expansion will only add more stuff to do and explore, be it the frozen land of Northrend, the new Glyph system, or hundreds of achievements.