Activision and Sony announced back at E3 that the Call of Duty: Black Ops 3 beta would be available first on PlayStation 4, but did not reveal how long it will be exclusive to PS4. Attendees of the Black Ops 3 Zombies Escape Room Challenge received a free swag bag that contained a card to get 30 days free of PlayStation Plus, in addition to other items.
On that PlayStation Plus card, it says that the Call of Duty: Black Ops 3 beta is a “PlayStation Exclusive” between 8.19.15 through 8.23.15. It appears Sony has a 5 day exclusivity on the multiplayer beta.
With this being revealed, it’s not clear yet exactly what date after August 23rd that the beta will start on PC and Xbox One. Activision has stated that the dates for those platforms will be announced soon.
Treyarch announced recently that the Call of Duty: Black Ops 3 beta will start August 19th on PS4, but did not provide any additional information. We’ll update as we learn more.