It's a World of Warcraft screenshot, right? Well, no -- it's a screenshot from WTF?!, a Flash-based sidescroller parodying WoW. And it's note-perfect, too -- every interface element and the backgrounds and characters look like they're ripped straight from Azeroth.Link to Play This Thing review, Link to WTF?
The gameplay is pretty similar, too, for all that this is a sidescroller -- the same tedious level-grind, based on the same sort of tedious quests ("go kill seven sheep"). But the satirical way it treats that level-grind is priceless, a telling commentary on the common tropes of the MMO. The quests get increasingly weird -- your newbie quest giver asks you to go cast a spell on sheep that have been transformed by the evil mage Karl Marx into communist brain-slaves to restore them to their rightful ovine form, and then tells you to go kill Marx himself. But Marx shows you that your previous quest-giver is simply a tool of capitalist oppression, and becomes your new quest giver. Sigmund Freud also makes an appearance.