Mike Morhaime, the man who co-founded gaming giant Blizzard Entertainment in 1991 (originally under the name Silicon & Synapse) and oversaw the launch of numerous hit franchises, including Warcraft, Diablo and Starcraft, has stepped down as president and CEO. J. Allen Brack, who previously served as executive producer and senior VP for World of Warcraft, will be taking on the lead role, while Morhaime will stay as an advisor. SEE ALSO: 'Battle for Azeroth' is exactly the expansion'World of Warcraft' needed In his farewell post, published on Blizzard's website, Morhaime didn't share the reasons for his departure. "After many years of working with some of the industry's most talented people to create games and worlds for you to play in, I've decided it's time for someone else to lead Blizzard Entertainment," he wrote. Mike – thank you for everything: for setting the foundation for the games, worlds and communities that we love, and for being a guiding light and an example for us all.