Download
Install the official Tiat launcher and step into Aden.
01
Create your account
Register a master account on cabinet.l2tiat.com — that email and password sign you in to the cabinet and the launcher. Pick a username, set a strong password, and confirm your email.

One master account signs you in to the cabinet on cabinet.l2tiat.com. 02
Get the launcher
Download the Windows launcher, install it, and sign in with your master account. It pulls and verifies the latest client files from updater.l2tiat.com, checks them again before you play, and updates itself.

The launcher checks your files and keeps your client patched. 03
Play
Create a game account for the server in the cabinet, press Play in the launcher, and log in with that game account. Choose a class, name your hero, and enter the world.

Log in and step into Aden.
Having trouble? Ask in Discord.