At Level 10 all players have the ability to create a Guild for the price of 10,000 Gold. A Guild is a group of people who come together and fight together. If you aren't the type who prefers leading, try joining someone else's Guild. That way you can enjoy the team, without having the responsibility. For those of you who don't know where to start when making a Guild though, you have to go to the Guild Manager, Ellenshar.
Also to reach the next level, the ammount of guild points required for the level up will be decreased from the total. If your guild is level 1 and acquired 6.000 Guild Points, you will exchange 5.000 GP to raise your level, leaving your guild with 1.000 points.