Installation Instructions:

1- Download setup file from download link below
2- Unzip with 7zip or WinRAR
3- Launch TERA Starscape Setup
4- Use setup wizard to select game folder and install
5- Launch TERA Starscape Launcher
(note: launcher needs internet explorer installed)
6- Register & login
(User Names: 4-13 characters)
(Passwords: 8-14 characters, alpha numeric only)
7- Click the Repair button to begin the client download
8- After all files have downloaded press Play

Most find the Torrent to be the fastest download

Alternate download link.
This is the entire 60GB packaged client.