Tree of Savior's developer imcGames just secured more beta keys from Steam and they re-opened CBT application again. Starting today until November 6 you can register an account at TOS website (if you did that before you can skip this step), log into the official site, and click on [Register for 2nd CBT] button to enlist. The developer will randomly select certain number of players for the test.
The registration process will be the same as last time. You have to first log into our website and click on[Register for 2nd CBT] button which will be displayed on the top right corner of our website.
We are going to accept registrations from you until November 6th, 00:00 AM (EST).
Due to limited number of Beta Keys, we will select our testers by using a lucky draw method. The selected testers will receive the keys through their emails and they can also check their keys on our website by clicking on [Check your Beta Key] button from November 6th.
Source: TOS announcement