According to SteamSpy, Black Desert Online has sold over 127,000 copies on Steam in North America and Europe. It also has about 18,000 new players concurrently in the game. The initial news came by way of BDO Reddit.
In addition, the latest update to the game has been deployed that brings the Rose Festival and the Rulupee Event into the game among other changes to classes and features.
You can read more at the links above and by visiting the Black Desert Online Steam page.
Thanks, WNxbadboy3, for the tip!