BlizzCon is an annual gaming convention hosted by Blizzard Entertainment, where fans gather to celebrate their favorite games like World of Warcraft, Overwatch, and Diablo. The event features panels, tournaments, and exclusive announcements, making it a highlight for gamers worldwide. Attendees can participate in various activities, including cosplay contests and meet-and-greets with developers. BlizzCon also showcases the latest updates and expansions for Blizzard's games, creating an exciting atmosphere for both casual players and hardcore fans alike.