What year was the game "Overwatch" revealed?
Explanation
The game "Overwatch" was revealed in 2014 during the BlizzCon event by Blizzard Entertainment. The decision to reveal the game in 2014 was strategic as Blizzard had been working on the project for several years before that. By announcing the game in 2014, they garnered significant attention and built anticipation among gamers, creating a strong foundation for its release in 2016.