In the world of computer gaming, Overwatch is a game changer. It’s not only a standout product but also big business. The team-based, first-person shooter game is one of Blizzard Entertainment’s most popular offerings and has helped catapult the global video game industry’s yearly revenue to an estimated $347 billion. For readers age 12 and up, this STEM-based title dives inside the technology property and examines its features, design and development history, programming innovations, and reception from players. Collaborations and spin-offs are also discussed. Includes a glossary, sidebars, and profiles of notable creators, YouTubers, and/or esports competitors.