C hang Byung-gyu is a highly successful South Korean serial entrepreneur and investor, best known as the founder of the video game giant Krafton. A veteran of the Korean tech scene, Chang had already founded several successful tech companies and a venture capital firm before embarking on the venture that would make him a multi-billionaire. He founded Bluehole Studio (which later became the core of Krafton) in 2007.

The company's fortunes were transformed with the 2017 release of *PlayerUnknown's Battlegrounds* (PUBG), a battle royale game that became a global cultural and commercial phenomenon, selling tens of millions of copies and popularizing an entire genre of gaming. As the chairman of the board of Krafton, Chang oversaw the company's explosive growth and its massive initial public offering in 2021, one of the largest ever in South Korea. He is a highly respected figure in the country's startup ecosystem, known for his ability to identify and scale disruptive ideas.