Things You'll Need
Instructions
Form a group of six people, counting yourself. This step is required before you can form a guild. These six people are going to be the first members of the guild. However, there is nothing preventing someone from joining your party to help form a guild and then immediately quitting. You are not required to have six total people in the guild for it to continue to exist.
Talk to the guild registrar for your faction. The Order registrar is Guntram Schreiber. He is located on the stairs leading to Sigmar's Hammer, the building in the southwestern-most corner of Altdorf. The Destruction registrar is Astrid Ragnein. She is located just outside the Viper Pit, which is located on the platform jutting off the east side of the bridge leading to the citadel.
Fill in the prompts to form a guild. Forming a guild also has a 50 silver fee.
Earn guild experience until your guild reaches rank 16. Guild experience is earned whenever a member of the guild earns normal experience points for killing enemies or completing quests.
Talk to the merchant outside Sigmar's Hammer or the Viper Pit to enter these buildings. Any member of the guild can enter the guild tavern once it reaches rank 6.
Walk into the back doorway of either tavern to enter the guild leaders' hall. This room does not become accessible until the guild reaches rank 16.