Join the alpha
The realm is still being built, and few people come in at a time: there is only one of it, and every expedition really happens there. Leave your email and the invite arrives in order of arrival.
It will be wiped
At launch the realm goes to zero: characters, vault, auction book and history. What you build in the alpha is for finding bugs and having fun, not for keeping.
There is no email recovery
An account comes back through the Crown Seal — a code shown exactly once, at registration. Lose the password AND the seal and the account is gone. Keep it as carefully as you keep the account.
Death is hardcore
Dying drops enough experience to cost you a level and leaves your whole bag on the ground. You have fifteen minutes to go back for it, with the monsters still alive.
I already have an invite
The code is twenty letters in five groups. It is asked for when you create the account — if you already created one, name and password are enough.