Just as announced, today is the day that another high profile MMORPG goes free-to-play – TERA is renamed TERA Rising and adds a free-to-play model, along with the other two: Veteran and Club Membership. But this relaunch also includes a new content patch that brings several changes and additions. For example, a new dungeon and a 3vs3 arena, complete with ranked matches and rewards.
To learn everything about the new TERA and get started you can check this post in the official forum.