Despite how people are portraying the game, I really do see a very dark side of GW2. Sure you have your green idyllic pastures there, but I think GW2 is more dark and gritty than people realize. This was one of the very few things I loved about Warhammer Online - it was gritty, it was dirty and bloody grim. At least.. for the most part
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I also do predict that they will head in to "gloomy/grim" theme even more at the first expansion. I mean, the elder dragons ARE rising, world is being devastated and overrun by their minions...