The installation guide was first appeared on 2P's Black Desert forum, produced by our forum user @Opal (many thanks :3)
This is a guide about installing the RU-BDO client for the 'PTA' this September.
If you have not bought a Founder Pack, or have not gotten 3 Referrals (I believe), you will not be able to play.
How do you know for sure you got the referrals?
There will be this message on the "Quest" page (Copied from their Freq. Q's page):