Team 4 is the designation for a Blizzard Entertainment development team in charge of developing Overwatch, receiving its designation as per the company's post-World of Warcraft approach to games development. They are formerly responsible for the next-generation MMO known as Titan,[1] but by the summer of 2013, development of Titan was winding down, leading to the project being cancelled in September, 2014.

Members of the team were transferred to work on World of Warcraft, Hearthstone, and StarCraft II. The core team that remained began work on Overwatch.[2] As of November 2018, it consists of between 100–300 individuals.[3]



  1. ^ THE THREE LIVES OF BLIZZARD ENTERTAINMENT. Polygon (2014-10-04). Retrieved on 2015-05-08.
  2. ^ 2015-05-27, BlizzCon 2014 – Overwatch Origins Panel Transcript. Blizzplanet, retrieved on 2015-05-31
  3. ^ 2018-11-08, Our Full BlizzCon Interview With Blizzard Co-Founder Allen Adham. Game Informer, retrieved on 2018-11-19