Once you've solved enough quests, you can become a Wizard.
Wizards are administrator-like players who can create new game areas for others to visit.
As a Wizard, you can't be killed, and you don't participate in normal gameplay. You can manipulate the game by creating and destroying items, adding new maps, and writing code. You can still interact with players, but your role is different. You're not required to make areas as a Wizard - you're free to just log in and visit with people. If you don't like being a Wizard, you can always start a new character.