In addition to all of the combat both between AI enemies and players, ArenaNet also has a guild system in Guild Wars (hey, how could it not have such a feature?) and the developers have made it very easy to start one of your own. If you have enough money you can start your own guild by visiting your local town's register. A menu then pops up and all you have to do then is type in your guild name, a "tag" that identifies you and other members of your guild in your character name, and then a way to create an emblem using a wide varity of patterns, emblems and colors. That's all there is to it.