Given how frequently ArenaNet and NCSoft hosted open preview events for Guild Wars, it's safe to assume that a lot of people reading this article are probably already familiar with it. It's also a safe bet that a large part of why those tests happened as much as they did was to ensure that, come launch day, Guild Wars' intriguing network structure would hold up in the face of thousands of eager players. This week, all that was put to test, as Guild Wars came out the gate in earnest.